Home

MAN-EAM-0001 - Platinum User's Guide

1. November 2010 209 CMG EAM Platinum Firmware 14 3 13 Cylinder Auxiliary Input This is a standard 19 pin mil spec plug conforming to MIL DTL 26482 formerly MIL C 26482 A typical part number is O2E 14 19P although the initial 02E varies with manufacturer Suitable mating connectors have part numbers like 14 19S and are available from Amphenol ITT Cannon and other manufacturers Function Pin Function Optional SENSOR B auxiliary calibration channel ve Optional SENSOR B auxiliary Optional SENSOR B calibration channel ve Mux channel M6 Optional SENSOR B signal ground Optional SENSOR B Mux channel M3 Optional SENSOR B Mux channel M4 Optional SENSOR B Mux channel M7 not connected SENSOR A Mux channel MF Optional SENSOR B Mux channel M5 SENSOR A auxiliary calibration channel ve SENSOR A auxiliary calibration channel ve SENSOR A signal ground Digital ground not connected SENSOR A Mux channel MB SENSOR A Mux channel MC SENSOR A Mux channel MD SENSOR A Mux channel ME Wiring details for the compatible socket 14 19S as seen from the cable end i e during assembly 210 Issue C Operator s Guide 14 4 Using Minicom The CMG EAM includes the Linux program minicom as a terminal emulator for use with serial devices including G ralp digitisers The following is part of the minicom man page Minicom is window based To pop up a windo
2. November 2010 207 CMG EAM Platinum Firmware 14 3 11 Cylinder Data This is a standard 10 pin mil spec plug conforming to MIL DTL 26482 formerly MIL C 26482 A typical part number is O2E 12 10P although the initial 02E varies with manufacturer Suitable mating connectors have part numbers like 12 10S and are available from Amphenol ITT Cannon and other manufacturers Pin Function A B C D E F G H J K Power input 0 V Power input 10 to 36 V RS232 CTS RS232 RTS External trigger output External trigger output RS232 ground External trigger input RS232 receive RS232 transmit Wiring details for the compatible socket _12 10S as seen from the cable end i e during assembly 208 Issue C Operator s Guide 14 3 12 Cylinder SENSOR A amp B This is a standard 26 pin mil spec plug conforming to MIL DTL 26482 formerly MIL C 26482 A typical part number is O2E 16 26P although the initial 02E varies with manufacturer Suitable mating connectors have part numbers like 16 26S and are available from Amphenol ITT Cannon and other manufacturers A Vertical velocity ve B Vertical velocity ve C N S velocity ve E E W velocity ve G Vertical mass position K Busy indicator LED L E W mass position N Signal ground c Power 10 to 24 V Wiring details for the compatible socket _16 26S as seen from the cable end i e during assembly
3. 1 1 2 Digitiser By digitiser we mean an electronic device designed to accept analogue inputs from one or more sensors and using sampling techniques convert these analogue signals into streams of numerical data which are then stored or transmitted digitally An example of a digitiser is the CMG DM24 shown on the right in standard form and on the left packaged for borehole operation Issue C Operator s Guide 1 1 3 Digital Sensor or Digital Instrument By Digital Sensor or Digital Instrument we mean a single unit combining the functions of both sensor and digitiser with the meanings defined above Within this document the term digital sensor is used in the context of either digital inputs which may usefully be connected to either digitisers or digital sensors or configuration dialogues which can be used to configure both stand alone digitisers or the digitiser modules embedded within digital sensors An example of a digital sensor is the CMG 3TD true broadband digital seismometer shown on the left in standard configuration and on the right in bore hole format 1 2 Hardware Overview Platinum firmware runs on CMG EAMs CMG NAMs CMG DASs and CMG DCMs CMG DCM units Mk2x and above shipped with earlier firmware can be field upgraded to run Platinum firmware either over the internet from a local computer or from a USB data storage device The CMG EAM is based upon an I
4. 14 3 3 Peli case USB This is a standard 6 pin mil spec socket conforming to MIL DTL 26482 formerly MIL C 26482 A typical part number is 02E 10 06S although the initial 02E varies with manufacturer Suitable mating connectors have part numbers like 10 06P and are available from Amphenol ITT Cannon and other manufacturers Pin Function 5 V DC USB Type A pin 1 Data ve USB Type A pin 2 Data ve USB Type A pin 3 0 V USB Type A pin 4 Shielding Switched power 10 to 35 V a tw G ss oe ia Wiring details for the compatible plug 10 06P as seen from the cable end i e during assembly Cpe 200 Issue C Operator s Guide 14 3 4 Peli case NETWORK This is a standard 6 pin mil spec plug conforming to MIL DTL 26482 formerly MIL C 26482 A typical part number is O2E 10 06P although the initial O2E varies with manufacturer Suitable mating connectors have part numbers like 10 06S and are available from Amphenol ITT Cannon and other manufacturers Pin Function B Data transmit ve RJ45 pin 1 C Data receive ve RJ45 pin 3 E Data receive ve RJ45 pin 6 F Data transmit ve RJ45 pin 2 Wiring details for the compatible socket _10 06S as seen from the cable end i e during assembly November 2010 201 CMG EAM Platinum Firmware 14 3 5 Peli case Console This is a standard DE9F TIA 574 sub miniature D sub line
5. CMG EAM Platinum Firmware 132 The Log level drop down menu controls the level of detail present in log messages whether to syslog or to a dedicated log file Not all of the standard syslog logging levels are available The menu offers a choice in order of decreasing detail of Debugging information Informational messages Important notices or Warnings Expert options Log file Path to log file Leave blank to use syslog Log level Important notices Minimum severity level of messages to record in log Audit log size 256KiB medium v GCF convertor GCF compressor Default instance v Select which GCF convertor instance to send data from State directory var lib gcf out brp 0 Directory in which application state is stored Home Help Simple Submit Generated at 1970 01 07T15 37 502 by 6cs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited The GCF BRP sender keeps its own audit log independent from the system log The contents of this log are available using the GCF Audit Log viewer facility as described in section 13 3 2 on page 182 The amount of data retained is controlled by the Audit log size drop down menu whose choices are 64Kib small 256Kib medium 2MiB large and 16MiB huge It is possible to copy all incoming data verbatim to a network port which can be specified in the Debug port text field This is an advanced debug
6. For situations where it is either impossible or undesirable to upgrade over a network G ralp Systems Ltd can supply the latest Platinum firmware on a USB memory stick along with an appropriate adaptor cable part number CAS DCM 0038 The adapter cable is required when upgrading the firmware of a CMG DCM a CMG EAM and most CMG DAS units but not when upgrading a CMG NAM You will need both physical access and command line access to the device being upgraded Command line access may be via ssh or a serial connection 46 Issue C Operator s Guide If you are upgrading a CMG DCM CMG DAS or CMG EAM connect the adapter cable to the USB socket of the unit and plug the firmware pod into the adapter cable If you are upgrading a CMG NAM plug the firmware pod directly into a USB socket on the unit Please note that depending on the internal cable layout of your NAM it may be necessary to connect the firmware pod to a USB port on the back of the device near the network socket rather than to one on its front panel The upgrade procedure consists of either three or four steps 1 CMG EAM hardware only power up the USB ports 2 Connect the firmware pod 3 Mount the filesystem then 4 Run the upgrade Each of these steps is now described in detail Power up the USB ports This step only needs to be carried out on CMG EAM hardware The hardware for CMG DCMs CMG NAMs and CMG DAS units do not have control over the 5V U
7. Platinum Firmware for CMG EAM DAS NAM and DCM Operator s Guide Part No MAN EAM 0001 Designed and manufactured by G ralp Systems Limited 3 Midas House Calleva Park Aldermaston RG7 8EA England Proprietary Notice The information in this manual is proprietary to G ralp Systems Limited and may not be copied or distributed outside the approved recipient s organisation without the approval of G ralp Systems Limited G ralp Systems Limited shall not be liable for technical or editorial errors or omissions made herein nor for incidental or consequential damages resulting from the furnishing performance or usage of this material Issue C 2010 11 18 CMG EAM Platinum Firmware Table of Contents t SAVER OIC EOD iris vaca nccide a a EE ned bdeamnddasncuneh E 6 1A Noen Erimin OGY as cnosstinnaeetvnmsataconaramnunneynear snags aeeinqa E 8 DAE SOC LNG OF sara jeticicasanaieononce Cegeaaabt ong sane cance N A AO 8 teliz AO VOUS OP arraren a Gaon A TE EE AE NN 8 1 1 3 Digital Sensor or Digital Instrument essesesseesssserrssserrssserssserrsserssessees 9 1 2 Hardware OVeCrvie Wiis svsacenenasicesanadeinuadasennissiaet EE EO OT E 9 To Ol EVV E OVIN ON e E alaasucketdes 10 LE Typical Applica onS nense e E EO O T OA 11 1 4 1 Autonomous remote data loggeT essesessseessssrrrsssressseresssrresssressessersee 11 T42 Proloco CONV Oren arryn aa 11 CAS Aray COMCENU ALON oisin aE EEE E EEEE OE txamiecinums 12
8. see text above Wiring details for the compatible plug 14 12P as seen from the cable end i e 203 CMG EAM Platinum Firmware 14 3 Cylinder GPS This is a standard 10 pin mil spec plug conforming to MIL DTL 26482 formerly MIL C 26482 A typical part number is O2E 12 10P although the initial 02E varies with manufacturer Suitable mating connectors have part numbers like 12 10S and are available from Amphenol ITT Cannon and other manufacturers The pin out is the same as the GPS input of a DM24 digitizer Pin Function A B C D E F G H J K Power 0 V Power 12 V 1pps signal not connected Digitizer console transmit Digitizer console receive RS232 ground Digitizer console ground RS232 transmit to GPS RS232 receive from GPS Wiring details for the compatible socket _12 10S as seen from the cable end i e during assembly 2 04 Issue C Operator s Guide 14 3 8 Cylinder USB This is a standard 6 pin mil spec socket conforming to MIL DTL 26482 formerly MIL C 26482 A typical part number is O2E 10 06S although the initial 02E varies with manufacturer Suitable mating connectors have part numbers like 10 06P and are available from Amphenol ITT Cannon and other manufacturers Pin Function 5 V DC USB Type A pin 1 Data ve USB Type A pin 2 Data ve USB Type A pin 3 0 V USB Type A pin 4 Shielding not connected aA Se eo
9. Date Timed Description Actions 1 2009 06 12 14 03 standard confir Save Checked modules will be saved Module Description platinum Main instrument and data processing configuration network Networking and communications configuration werid User names ID and passwords systern dditional system core configuration Description From host dem105 Save configuration Upload Archive Browse Upload configuration archive Generated at 2009 07 13T15 35 592 Dy config manage cgi 6 2 3 Portions of output copyright c 2009 Guraip Systems Ltd To save a configuration use the check boxes to select which elements you wish to include enter a descriptive name in the Description field and click on Save configuration The configuration is saved onto the CMG EAM and will appear in the list of saved configurations at the top of the page If you are using the web interface you can download this configuration to the computer running the browser by clicking the Download button in the list of saved configurations at the top of the page 3 3 2 Deleting a saved configuration If a configuration has been saved in error or a saved configuration is no longer required it can be deleted using the above screen Each saved configuration in the Restore table has an associated Delete button in the Actions column Clicking the button deletes the associated configuration November 2010 3
10. RoYNC HOST 2cQress OfsMysSeCrver Roi NG PORTS 62010 RSYNC MODULE platinum local mirror replacing address of my server with the DNS name or IP address of the mirror server 61616 with the port number you chose earlier and platinum local mirror with the module name you chose earlier 49 CMG EAM Platinum Firmware The EAMs can now be updated from the mirror by following the instructions in section 4 3 on page 49 Note that the files etc conf d upgrade local on each EAM will not be disturbed by the upgrade process and so only need to be created once 4 2 2 2 Instructions for Windows computers The procedure for building a mirror site on a windows computer is essentially the same as for Linux Unix although the rsync program and the cygwin library needed to run it typically need to be installed and additional steps are required to run rsync as a service or daemon in Linux terminology Instructions for setting up rsync in daemon mode under Windows are available on line from http www samba org rsync nt html Once rsync is running as a daemon you can follow the Unix Linux instructions for setting up the mirror and client EAMs Remember to retain the lines use chroot false strict modes false at the top of etc rsyncd conf on the server If you use Windows Firewall you may need to configure it to allow incoming access to the port number that you have chosen 4 2 3 Upgrading from a USB storage device
11. Suitable mating connectors have part numbers like 12 10P and are available from Amphenol ITT Cannon and other manufacturers The pin out is such that the port can be connected to the serial output of a DM24 digitizer using a straight through cable Pin Function A B C D E F G H J K Power 0 V Power 10 to 35 V RS232 RTS RS232 CTS RS232 DTR RS232 DSR RS232 ground RS232 CD RS232 transmit RS232 receive LEN Wiring details for the compatible plug 12 10P as seen from the cable end i e during assembly 198 Issue C Operator s Guide 14 3 2 Peli case DATA OUT port This is a standard 10 pin mil spec plug conforming to MIL DTL 26482 formerly MIL C 26482 A typical part number is O2E 12 10P although the initial O2E varies with manufacturer Suitable mating connectors have part numbers like 12 10S and are available from Amphenol ITT Cannon and other manufacturers The pin out is the same as the serial output of a DM24 digitizer allowing you to insert a CMG EAM into a pre existing installation and maintain connectivity Pin Function RS232 receive RS232 transmit A Power input 0 V B Power input 10 to 35 V C RS232 CTS D RS232 RTS E RS232 DTR F RS232 DSR G RS232 ground H RS232 CD J K Wiring details for the compatible socket _12 10S as seen from the cable end i e during assembly November 2010 199 CMG EAM Platinum Firmware
12. To configure a physical network interface from the command line start gconfig and select Serial ports from the top level menu The following screen appears Home Confiquration Serial Serial ports configuration Select a port to configure Data Out GCF out 115200 baud Port A GCF in 38400 baud e Port B GCF out 38400 baud e Port C GCF in 38400 baud Port D GCF in 38400 baud e Port E GCF in 38400 baud Port F GCF in 38400 baud e Port G GCF in 38400 baud Console Terminal 38400 baud e Aux port 1 Terminal 38400 baud e Aux port 2 Terminal 38400 baud Home Generated at 2010 01 26T13 26 562 by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited November 2010 97 CMG EAM Platinum Firmware 98 Each port on the system is listed along with its function and line speed Any port can be used for any function with the exception of the console port which is dedicated to the terminal function and the internal ports used for inter module communications in CMG DAS units Note When configuring units without a dedicated console port such as the CMG DCM take care not to lock yourself out of the system by eg configuring all serial ports for non terminal functions before completing network access configuration Select the link for the serial port you wish to configure for GCF input The following screen will appear Hom
13. e Scream via 100BaseTX Ethernet or ppp e GDI link via 100BaseTX Ethernet or ppp and e CD1 1 The architecture has been designed to support the addition of extra formats simply by adding input modules Please contact G ralp Systems if you have requirements which are currently unsupported Any number of output modules can be configured to send data in any supported format to any destination The following data formats are supported e GCF output via serial port or TCP stream e GCF output via Scream TCP or UDP e GDI Giralp Data Interconnect e GDI link e CD1 1 e WIN format output e QSCD Quick Seismic Characteristic Data designed by KIGAM output and e GSMS G ralp Seismic Monitoring System output In the default factory configuration the CMG EAM is configured to receive serial GCF input on all of its serial ports except Data Out There is a single chain of data through the multiplexor to a Scream server Data are also recorded to disk in GCF format This is shown in the following diagram November 2010 53 CMG EAM Platinum Firmware Serial Input CE Output Modules Scream In put server Modules gdi base GCF f out i reea The gdi2gcf module know as the GCF compressor is responsible for re blocking GDI samples into GCF blocks It provides data to all GCF output modules as well as to the gdi record module which writes GCF files to disk It has a number of configuration options
14. form gstm client n where n is an integer O denotes the first configured client instance 1 the second and so on When the GSTM link is established or re established it is possible to run an arbitrary command Any text entered in the Link established command field is passed to the Linux shell for execution so this can be a single command or the path to a shell script to execute multiple commands Please contact G ralp support if you need assistance with this feature November 2010 163 CMG EAM Platinum Firmware 164 12 2 2 The GSTM Server GSTM clients initiate connections to GSTM servers To configure a GSTM server on the CMG EAM connect to the CMG EAM configuration system via web or terminal From the main screen select Services then Guralp secure TCP multiplexor server The next screen shows a list of all GSTM client instances that have been configured on the CMG EAM Home Configuration Services gstm server Guralp secure TCP multiplexor server instance selection Create new service instance Home Heir Generated at 1970 01 06T19 46 122 by scs 2 9 9 Portions of output copyright c 1970 Guralp Systems Limited This screen lists all currently configured server instances Click on any server in the list to reconfigure it or to create a new instance click on Create new service instance The following screen appears shown here in parts Home gt Configuration gt Services
15. once the flush is complete The disk is equipped with a temperature sensor and heating element In low temperature applications the disk will automatically be warmed to a safe operating temperature before power is applied The options that control this process are all on one page but given its size it is shown here in sections To configure data storage select Disk data recording from the Configuration All options menu or select the Disk recording short cut from the Configuration Data transfer recording menu To configure recording from the command line start gconfig and select Disk data recording from the top level menu The first part of the configuration screen for gdi record looks like this Home Configuration gt Disk recording Disk recording configuration These parameters control global disk recording operation and the removable disk support daemon rdisk Disable all recording O Disable all data recording to disk Recycle files o Remove old files from the hard disk when low on space Check output flush Every 5 minutes How often to check whether output needs flushing Recording destination Removable USB disk in internal tray v The destination device for recording to Using the removable disk support daemon Use expert mode if you wish to disable The default settings for this service will work in most installations but if you wish to fine tune th
16. or ee Ne filter receive everything l rr a nt c 1970 Guralp For each server you should set e the peer name this should match the server name configured on the the remote host this is the DNS name or IP address of the GDI link server the remote service port the default is 1565 but if you have configured a different port on the GDI link server you should enter the same port here e enable at start up filtering you can filter by sample rate or channel names Issue C Operator s Guide When you have entered all the required information press Submit 12 2 Guralp Secure TCP Multiplexer The G ralp Secure TCP Multiplexer GSTM is a method by which TCP and UDP connections can be tunnelled in both directions over a single TCP connection It is an essential tool in situations where local network service providers cannot provide fixed static IP addresses For example in an installation involving a single central data collection point and multiple remote sensor sites it is sometimes impractical for the sensor sites to be allocated static IP addresses Using GSTM allows the remote sites to initiate a single GSTM TCP connection to the central site Once established further TCP and UDP connections can be initiated in either direction their packets are tunnelled over the GSTM link If no sites in an array can be assigned fixed IPs including the central data collection point a GSL EAM or GS
17. page 13 3 Tools Menu 13 3 1 Passwords The password change facility is described in section 2 3 on page 24 13 3 2 GCF Audit Log Viewer Detailed information about every GCF packet sent or received are stored on the GSL EAM and can be viewed with the GCF Audit Log Viewer To access the GCF Audit Log Viewer from the web interface click on GCF audit log viewer on the Tools menu To access the same information from the command line enter the command gcflogview The initial screen displays all GCF data sources and sinks in a table together with some summary information In the example given it can be seen that Ports B and F are inactive Port A was receiving GCF data until 16 36 and the default instance of the Scream network server was sending GCF data until the same time 182 Issue C Operator s Guide GCF audit log viewer GCF audit jog s Select View to view a log in more E Latest entry__ Size View Scream GCF network server instance default200 07 13T16 36 33 eal Latest entry eee Generated at 2009 07 13T16 36 372 DY geflogvtew cgi 7 0 5 Portions of output copyright c 2009 Guraip Systems Lid The Size column shows the size of the log buffer allocated to each data source or sink The log buffer size can be changed from the relevant service or port configuration screens in expert mode For example to allocate a larger log buffer to the GCF receiver running on Port A click o
18. set to User files restore Click the Restore configuration button to load the configuration values from the saved data into the CMG EAM s files Depending on the significance of the changes between the saved configuration and the previous active configuration you may need to stop and restart a number of services see Services in section 13 2 4 on page 181 or reboot the unit completely see section 13 2 3 on page 181 before all your changes will come into effect If you have a reasonable working knowledge of the service configuration files used internally by the CMG EAM you may find the Issue C Operator s Guide dry run facility useful Clicking the Dry run restoration button produces a list of files that would be over written but without actually making any changes This is also a useful tool for exploring the effects of different configuration classes November 2010 39 CMG EAM Platinum Firmware 4 Firmware Upgrades Platinum firmware is regularly updated to provide extra features improve performance and occasionally to correct errors The upgrade process is fast simple and can be carried out remotely using either the web or command line interface Note This procedure does not upgrade the firmware of connected or embedded digitisers which should be upgraded using the data terminal command as documented in section 13 22 2 ON page 17 7 The upgrade process makes use of the r
19. 107 for more details The disk may have been formatted as either a VFAT or ext3 volume Windows computers cannot read ext3 volumes without additional software such as Explore2fs or DiskInternals Linux Reader See http www howtoforge com access linux partitions from windows for more details about these two packages November 2010 127 CMG EAM Platinum Firmware 11 Transmitting Data Received data may be retransmitted in near real time in one or more of a number of different formats By default a GCF Scream server is configured to forward all received data Any other desired transmitters must be configured and enabled before use The following transmission services are currently available GCF BRP network server see section 11 1 GCF Scream network server see section 11 2 GSMS G ralp Seismic Monitoring System see section 11 4 QSCD Quick Seismic Characteristic Data see section 11 5 WIN sender see section 11 6 These servers are all described in the following sections 11 1 GCF BRP Network Server 128 The GCF BRP network server transmits G ralp Compressed Format GCF data using the Block Recovery Protocol BRP over an Ethernet network To configure a GCF BRP network server from the web interface select System services from the Configuration All options menu or select the Services short cut from the Data transfer recording menu To configure a GCF BRP net
20. 16 bit resolution the analogue inputs on the Auxiliary connector of the digitiser although in some configurations they may be connected to internal sensors M8 M9 and MA provide mass position data from the first sensor and for seven channel digitisers MO M1 and M2 perform the same function for the second instrument Output from each displayed channel can be enabled by ticking the associated check box or disabled by clearing it This is followed by the Transmission Mode selection dialogue not reproduced here One mode can be selected from the following list Direct mode Data are transmitted in real time without being copied to local storage Only a small transmit buffer is used Filing mode Data are stored in local flash storage A periodic status heartbeat is transmitted to inform listeners that data are available from storage Adaptive mode Data are transmitted in real time whenever possible Any unacknowledged transmission is stored and retransmitted oldest first when the line is not being used for real time traffic FIFO mode Data are stored locally and transmitted in strict FIFO order If the link is lost for a period real time data will be delayed while the stored data are transmitted Dual mode Continuous data are transmitted as in direct mode and Triggered data is stored in flash as in filing mode November 2010 85 CMG EAM Platinum Firmware 86 Duplicate mode Data are transmitted as
21. 3 1 Configurable parameters in standard MOE ccccceecccseeceeeeeeeeeeeeaeess 65 6 3 2 Configurable parameters in expert mode sss sssssssessressrrssersserssressrrs 66 GA Mal COMIMMOUPAL ION aina e A T T T 66 64 1 Conigarable pirameleT Sinsen a AT 67 6 5 GON TING THE SSE SEVE erei r E ES a NO 67 6 5 1 Configuring sshd via the web interface c cccccsssescceeeeesceneeeeeeeeeeaeees 68 6 5 2 Configuring sshd from the command line seesssseeessssreeesssreresssrreserss 69 6 6 WORKING WiP E ya vacsstatcngnaqasapue A S 69 6 071 Setting p a PPP CONNEC CHON scierie iani EE AAE EA AEE 69 66 2 M onitorme a PEP COnMe CHO Decena E E 72 6 7 Configuring TCP to serial converters esssssessssssreessserrrrssssrersseresereserssees 74 07 Ol PIC SEIVED Mod Oera n a a arena eecatsinia es 75 6072 DIM PIE chent mod Onee A AAEE 77 7 Dici serConhgural oies a a aS 78 7 1 Configuring Digitisers using the web interface eeessssessrerssrrssrrrssrrerrersse 78 7 2 Configuring digitisers from the command line essssssssesssssssrreresssssereresssssees 89 8 Digitiser Synchronisation sssessssessssscssssccssseccsssecosesecossscosssscoscossosecoscoseosesoeee 90 Bel RITSTATUSPICKO Senara E eee 90 8 2 Usine NTP with GMG DAS UNUS A a E OE E 91 8 3 Using GPS with Authenticated Digitisers ssseesssseessssersssrersssrreserssreseess 91 8 4 Using NTP with Authenticated Digitisers s ses
22. 3K55 Digitiser Control C914 3K55 Mass positions Query Masses Lock i r Unlock Display the current mass positions of the Lock the masses for Unlock the masses after instrument transport installation Run Run Run Centre Masses Centre the instrument s masses Run The second section of this web page deals with calibration Note that all entered values must be integers so for example if you wish to calibrate with a 0 5Hz sine wave this should be entered as a 2 second period Please refer to the relevant manuals for your digitiser and sensor for more details of these options The screen looks like this shown in sections Calibration Sine wave Calibration Perform a calibration using a sine wave Duration in minutes 2 The Amplitude value refers to an arbitrary full scale output from the calibration circuitry It can be left at 100 unless clipping is observed in which case it should be reduced until an undistorted output is observed The square wave step and random calibration dialogues are similar November 2010 175 CMG EAM Platinum Firmware Square wave Calibration Perform a calibration using a square wave The signal consists of a positive step of the given duration followed by a negative step of the same duration a Duration in minutes 2 Amplitude percentage 1 og Run Random Calibration Perform a calibration
23. 40 samples second 32 bit floating point samples 1 samiples second __ 22 hit floating point samples A830 55TPN4 A830 55TPZ4 A830 25TP20 1 backfill only View details Dump data 1 backfill only View details Dump data View details Dump data Dump data 1 realtime 2 backfill 1 realtime one 7 LP cure datsile The first two columns show the names of the channels together with information about the data format shows details of data currently The Active segments column being received A segment is a contiguous sequence of blocks so any data being back filled always requires separate segments For each channel you have the option of viewing detailed information about the data or the data itself by use of the View details and Dump data buttons The View details button displays the following screen shown here in parts Channel A830 55TP20 details Channel information GDI channel namegA830 55TP20 Sample format 32 bit floating point samples Sample rate 1 samples second The first section of the screen above shows the channel name sample format and sample rate as seen on the previous screen Segments Segments are continuous runs of time series sampled data Segments never cont
24. Any text entered into the Startup command column is passed to the Linux shell for execution The path to a shell script can be entered here if it is required to run multiple commands Contact G ralp support if you need assistance with this feature Port forwards Listen address Listen service port Target client Target service port Home Help Expert Submit Generated at 1970 01 06T19 47 392 by scs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited An active GSTM link can forward arbitrary TCP connections to the clients from any host that can access the server The system is very flexible but complex configurations can become confusing We suggest you adopt the following strategy 1 Pick a private sub network not used elsewhere to map to the clients Nominate an address in this subnet to represent each client For example if you have seven clients you could use addresses 10 99 0 1 through to 10 99 0 7 inclusive 2 Configure all of these addresses as additional IP addresses on the sever To do this click on Interfaces under Networking in the Configuration section of the left hand side menu in the web interface or if using the command line choose Networking from the main menu in gconfig Select the appropriate interface typically ethO and on the resultant page scroll to the bottom and click the Expert button 166 Issue C Operator s Guide Scroll down to the I
25. C Operator s Guide To configure NTP from the web interface select Networking from the Configuration All options menu and then click on the link for Network Time Protocol NTP daemon or select the NTP short cut from the Networking menu To configure NTP from the command line start gconfig select Networking from the top level menu and then select Network Time Protocol NTP daemon The following screen is displayed Home Configuration gt Networking NTP Network Time Protocol Acquire time from connected GPS o Allows NTP to acquire the time from connected GPS receivers Acquire time from connected Gi digitisers Allows NTP to acquire the time from suitable digitisers The following servers will be queried for the time You can specify a server by hostname or by IP address Home Help Expert Submit Generated at 2010 01 25T11 44 162 by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited 6 3 1 Configurable parameters in standard mode The Acquire time from connected GPS check box tells the system that a GPS receiver has been attached to one of the serial ports and is to be used as a clock source The serial port used must be configured with a Port function of NMEA in Receive GPS data for NTP and when used with G ralp supplied GPS receivers must be set to 4 800 baud operation as described in 8 5 on page 93 No fur
26. Configuration Serial gt PortC Port C serial configuration Port name Fixed Port function NMEA in Receive GPS data for NTP v Function the port currently supports Fort speed 80D il Baudrate at which the port operates NMEA output settings GCF input settings 8 6 Configuring NMEA output 94 Platinum can generate simulated GPS data NMEA 0183 to synchronise a connected digitiser s clock In this case the internal clock of the CMG EAM is used as a reference for the digitiser In order to provide a sufficiently accurate time stamp the clock must be controlled using NTP See section 6 3 on page 64 To configure NMEA Output using the web interface select Serial ports from the Configuration All options menu or select the Serial ports short cut from the Configuration Data transfer recording options menu To configure NMEA Output from the command line start gconfig select Serial ports from the top level menu Next select the serial port from which you want to output NMEA Only one port can be used for NMEA output at any time the timing constraints are such that a single processor cannot produce the pulse per second PPS signal on two ports simultaneously with sufficient accuracy Issue C Operator s Guide Note For Authenticated Digitisers Port C should be used in order to provide NMEA output to the internal digitiser module If a G
27. EAMs and between CMG EAMs and CMG NAMs CD1 1 output WIN output QSCD Quick Seismic Characteristic Data designed by KIGAM output GSMS G ralp Seismic Monitoring System output e Network communication 10 The CMG EAM has a built in wired Ethernet connection Modem support Iridium GPRS etc Issue C Operator s Guide e Support for multiple redundant network links to increase resilience e Other connectivity options such as wireless Ethernet IEEE802 11 and Bluetooth can be added on request please contact G ralp sales for more information e Processing e Various types of data processing can be carried out by the CMG EAM Please contact G ralp sales for more information Section 5 gives a description of how data is handled within the CMG EAM 1 4 Typical Applications 1 4 1 Autonomous remote data logger In this application depicted below a CMG EAM is used to collect data from a digital instrument or analogue instrument and digitiser and store it on its hard drive The low power consumption and high storage capacity of the CMG EAM makes it ideal for this purpose Where appropriate the battery supply can be augmented with a solar panel and the CMG EAM is capable of interfacing with and monitoring the associated charge controller RS232 power CMG EAM If it is desired to contact the CMG EAM for monitoring or urgent data download purposes the unit can be fitted with a GPRS or sat
28. Log level important notices Minimum severity level of messages to record in log Mini SEED convertor Mini SEED compressor Default instance v Select which Mini SEED convertor instance to send data from Home Help Simple Submit Generated at 1970 01 06T03 34 052 by scs 2 9 3 Portions of output copyright c 1970 Guralp Systems Limited It may sometimes be desirable for debugging purposes to separate log messages for this transmitter from the standard system log The Log file text field can be populated with a path name which will then be used for dedicated logging If left blank logging occurs via the standard Linux syslog facility to var log messages The Log level drop down menu controls the level of detail present in log messages whether to syslog or to a dedicated log file Not all of the standard syslog logging levels are available The menu offers a choice in order of decreasing detail of Debugging information Informational messages Important notices or Warnings In the default configuration all data for all servers is taken from a single compressor as described at the beginning of this section For more complex configurations it is possible to configure multiple compressors each with their own multiplexor input and set of output servers In these situations the Mini SEED convertor drop down menu can be used to select a compressor instance with which to associate this server The menu offers a li
29. Note RTSTATUS packets are available with CD24 units running firmware revision 279 and above This is also the recommended configuration for CMG DAS units where GPS reception is available 8 2 Using NTP with CMG DAS units Where GPS reception is not practical but an internet connection is available NTP can be used to synchronise the Platinum clock which can then generate NMEA output This NMEA data stream can be fed to the GPS input of the digitiser module using an external cable from a serial port GPS Port bl er eee ees ey ee ae DCM EAM I lt Od JONAN NTP Y NMEA Out gt 7 Digitiser Clock TOO UP OUR ROU RPO PP Gn ha pU BB ESRRR RRR RE SBRERR ee S E E HE E E EHEHEHE EH i a E E E E E E 0O E E g E a E E E E eee eeeeeeeeeeene nf op eee eee eee ee ee eee en 8 To configure the NTP subsystem see section 6 3 on page 64 To configure NMEA output see section 8 6 on page 94 8 3 Using GPS with Authenticated Digitisers G ralp Systems Ltd s authenticated digitisers provide a CMG DM24 and a CMG EAM in a single package An internal bi directional November 2010 91 CMG EAM Platinum Firmware 92 connection is made between Port C of the EAM and the digitiser module This connection can operate in one of two modes An external GPS receiver can provide input to both the digitiser module s clock circuitry and the EAM s NTP subsystem or The EA
30. Status unknown 09BA 6202 2010 02 04T10 34 532 Status good e NTP has not locked the system clock as the estimated error is too large Tools CD1 1 log analyser Environment logs Firmware GCF audit log viewer GDI channels Estimated cerror is 1000000us e Clock source is unspecified Tho e 2010 02 04T06 21 497 Tilesystem type viat e Size 74 5GiB e Free 74 4GiB 99 9 e Earliest entry 2010034 gcfraw eee Generated at 2010 02 04T10 35 14Z by libstatus cgi 1 2 6 Portions of display output copyright c 2010 Guralp Systems Ltd Red boxes indicate that some part of the system is malfunctioning and require further investigation Malfunctions could occur due to hardware failure but the most likely explanation is an incorrect configuration setting Issue C Operator s Guide From the command line interface you can view the same information by running libstatus query eam999 libstatus query Z008 05 O1LTI3 57 5242 Good System uptime 2008 05 01T13 59 16Z Unknown GCF in Port A 2008 05 01T13 59 17Z Good GCF in Port F Last 5 minutes x 1532 blocks 5 1 per second 0 naks 0 0 naks per second 2008 05 017T13 59 14Z Good NTP NTP has locked the system clock Clock source is UDP NTP 2008 05 01T13 44 11Z Good Removable disk 0000 0401 Filesystem type vfat DIZE 73 y AEB Free 24 9GiB 66 9 Earliest entry 2008091 gcfraw 1
31. a temporary static network address using the command line The web configured address will take effect when the unit is next rebooted 18 Issue C Operator s Guide 2 2 2 Assigning a static IP address If the network you are connecting to does not use DHCP you must first connect via a serial port in order to configure a static IP address Connect the CMG EAM to the network and power cycle it before proceeding its network interface will not be enabled unless it sees a network at boot Once logged in issue the following command eam999 ip addr add 192 168 0 1 24 dev ethO You can change the IP address to anything you wish It must be specified in CIDR format where the actual address is followed by the number of bits of the network mask The above example uses 192 168 0 1 with a netmask of 255 255 255 0 24 bits of network address A PC connected to this network could communicate with the CMG EAM if it was configured to use an IP address of for example 192 168 0 2 with a matching netmask of 255 255 255 0 If you wish to connect to the CMG EAM from a PC they must either both have the same network address usually the first three numbers of the IP address or be able to connect to each other via routers In the latter case you will need to tell the CMG EAM the address of its default router Issue the command eam999 ip route add default via 192 168 0 254 substituting the address of your network s default router in
32. action required the ssh protocol sets the mode under Windows TERM environment variable automatically PuTTY will default to xterm emulation allowing the mouse to be used within gconfig Minicom under Unix Minicom emulates a vt100 style terminal and automatically maps the keystrokes and display sequences for the actual terminal you are using so the default TERM setting of vt100 is correct HyperTerminal under Using the File menu option Settings Windows ensure that the terminal type is set to VT100 HyperTerminal will then emulate a vt100 style terminal which will match the default TERM of vt100 on the CMG EAM Scream Scream versions before 4 5 do not support the required screen drawing control codes so its use with gconfig is not recommended 30 Issue C Operator s Guide When you enter the gconfig command the initial screen looks like this File Edit View Terminal Help EAM Configuration System Welcome to the Guralp Systems EAM Configuration System Please select an area of the system to configure from the menu provided below System identity hostname Serial ports Networking System services Routine tasks Disk data recording GPIO Labels and power switch settings Version and serial number information lt Quit gt lt Help gt lt Expert gt lt Submit gt The gconfig interface can be navigated entirely using the keyboard but if you use xterm or your terminal emul
33. alters dynamically to reflect the system s embedded and attached devices For every digitiser detected an entry appears which allows you to configure the digitiser Note To control as opposed to configure the digitiser and its attached instrument sensor locking mass centring etc see section 13 2 2 on page 173 The information shown on this screen is often retrieved from the digitiser using a sequence of background commands over a serial communications line and so may take a few seconds to display A progress indicator is displayed during this process It is possible to display this sequence of commands together with the responses received from the digitiser and this may be useful both for learning the command line interface of the digitiser and for debugging any unexpected behaviour To do this select Show full digitiser dialogue in future form submissions from the miscellaneous section near the bottom of the configuration screen The digitiser configuration screen is large and is shown here in sections The first section displays the digitiser s identification string and serial number and allows these to be set It also displays the digitiser s software version C914 3K55 Identity System identification c914 sm Issue C Operator s Guide The system identification string and serial number can be changed by altering these fields and then clicking the Submit changes button at the bottom
34. and each tap can be configured to divide this by either 2 4 or 5 The available rates November 2010 81 CMG EAM Platinum Firmware 82 are shown in the table below along with a way to configure each although there are sometimes very many different ways to configure any given rate Desired Intermediate output rate steps 4 400 100 20 5 400 100 20 8 400 200 40 10 400 100 50 16 400 80 20 400 100 25 400 100 40 400 200 50 400 250 80 400 100 400 125 500 200 400 250 500 400 tap 1 500 tap 1 1000 tap 1 The triggering settings are normally hidden but can be revealed by clicking the View trigger settings button dialogues are displayed The following extra Issue C Operator s Guide Output triggering STA LTA trigger Trigger input Tap 0 500sps 25Hz to 225Hz Level trigger a g Ferrer immat Tan N SANene STA LTA triggers activate when the ratio of the short term average to the long term average of the input signal exceeds a configured value The trigger input drop down menu allows the selection of the input signal to be used for these calculations along with one of three filter settings The available filters have lower corner frequencies based on fixed fractions of the sample frequency specifically 5 15 and 25 of the sample rate The upper corner is the Nyquist frequency half the sample rate For example
35. as B E Wiring details for the compatible plug _10 06P as seen from the cable end i e during assembly One November 2010 205 CMG EAM Platinum Firmware 206 14 3 9 Cylinder Power This is a standard 4 pin mil spec plug conforming to MIL DTL 26482 formerly MIL C 26482 A typical part number is O02E 08 04P although the initial 02E varies with manufacturer Suitable mating connectors have part numbers like 08 04S and are available from Amphenol ITT Cannon and other manufacturers Pin Function A Ground B ve supply input C Anti tamper line 5 D External switched power output 1 during assembly Wiring details for the compatible socket _08 04S as seen from the cable end i e Issue C Operator s Guide 14 3 10 Cylinder Ethernet This is a standard 6 pin mil spec plug conforming to MIL DTL 26482 formerly MIL C 26482 A typical part number is O2E 10 06P although the initial O2E varies with manufacturer Suitable mating connectors have part numbers like 10 06S and are available from Amphenol ITT Cannon and other manufacturers Pin Function A B C D E E Ground Data transmit ve RJ45 pin 1 Data receive ve RJ45 pin 3 External switched power output 0 Data receive ve RJ45 pin 6 Data transmit ve RJ45 pin 2 Wiring details for the compatible socket _10 06S as seen from the cable end i e during assembly
36. as sy and the Z modem transmitter as sz They are in fact all implemented by the same program so the detailed help message displayed with the help option describes options relevant to all three protocols Linux users are advised to use the minicom terminal emulator This includes X modem support and its use is described below For Windows users we describe the use of HyperTerminal which is supplied with many Windows systems 124 Issue C Operator s Guide For minicom users the X modem protocol should first Wi J to display the options menu start minicom and type Si then i Welcome to minicom 2 3 OPTIONS IT20 Compiled on Sep 25 2009 23 40 20 Port dev ttyso be configured minicom s escape sequence and Press CTRL A Z for help on special keys CORT LOULraL On nS eam2243 logi Filenames and paths Password E eam2243 Serial port setup Modem and dialling Screen and keyboard Save setup as dfl Save setup as Sere Select File transfer protocols and ensure that the command used for X modem transfers is set to usr bin sx vv To download a file mount the disk if required enter the command eam2010 sx path to file and then immediately type m followed by R to activate minicom s receive file function Select xmodem from the resulting menu and then enter a name for the downloaded file The transfer should start immediate
37. blackhole these destinations are unreachable Packets are discarded silently An EINVAL error may appear in var log messages o prohibit these destinations are unreachable Packets are discarded and the ICMP message communication administratively prohibited is generated An EACCES error may appear in var log messages o local the destinations are assigned to this host The packets are looped back and delivered locally o broadcast the destinations are broadcast addresses The packets are sent as link broadcasts Destination The host or network to which this route offers access should be entered here in CIDR format where the address is followed by a slash and then the number of bits defining the netmask e g 192 168 0 1 24 for IPV4 or 2001 db8 32 for IPV6 Gateway Enter the IP address of the host which serves as the gateway to the specified destination ip route args This field field can be used to modify the invocation of the associated ip route add command in order to e g set the route metric The options that can be set here are mostly highly technical and should rarely be required Please see http linux die net man 8 ip for more information Delete For populated table rows a check box appears in this column To delete the associated alias tick the check box and submit the form 6 2 Virtual network VLAN interfaces Platinum firmware supports the use of Virtual Local Area Networks VLANs to partitio
38. by pinging the IP address of the browser from the command line of the CMG CMG EAM eam999 ping c3 192 168 0 2 PING 192s 1682022 LOZ 1680 2 50 d ta bytes 64 bytes from 192 168 0 2 seg 0 ttl 63 time 2 284 ms 64 bytes from 192 168 0 2 seg 1l ttl 63 time 1 129 ms 64 bytes from 192 168 0 2 seg 2 ttl 63 time 1 944 ms Hae MO e OO ge7 hl Pind Shae reeLes a 3 packets transmitted 3 packets received 0 packet loss round trip mMmin avo max 1 129 1 785 2 284 ms eam999 To resolve this class of problem ensure that the cables are functioning which can be verified by checking the diagnostic lights on most switches hubs and double check that the PC and CMG EAM are on the same subnet which means the netmasks must match and the first sections as defined by the netmask of the IP addresses must match The website http en wikipedia org wiki IP address has some useful information for those for whom sub networking is unfamiliar 2 2 4 Connecting using SSH SSH secure shell is the most flexible way to control a CMG EAM but it is less friendly than using the web interface It is possible to configure more advanced operations using SSH but the majority of control and configuration tasks can be achieved most easily through the web interface SSH is shipped as standard with most Linux distributions and is available for Windows as part of PuTTY available for free from http www chiark greenend org uk sgtatham
39. column shows the word Stopped in red for any services which are not running and for those which are running the PID process ID a unique number which the operating system uses to keep track of running programs and the date and time that this instance of the service was started The third column has buttons allowing you to stop start or re start each service It is possible to monitor and control services from the command line using the ps command and various scripts in etc init local and etc init d This should be familiar to Linux users but full details are beyond the scope of this manual November 2010 181 CMG EAM Platinum Firmware Service Control DataQut Running Start Stop Restart seria Data Out Port PID 710 started Thu Jan 1 00 00 49 UTC 1970 PortA Running Start Stop Restart Serial Port A PID 716 started Thu Jan 1 00 00 49 UTC 1970 PortB Running Start Stop Restart Serial Port B lb a a started Thu Jan 1 00 00 50 UTC 1970 Diinninea a ee 13 2 5 RAID Array Services RAID arrays provide increased data security at the cost of extra storage devices They can prevent the loss of data in the event of a single drive failure The RAID Array Services item on the Control menu will only be displayed on CMG NAMs with RAID fitted It displays a page which reports the status of and allows simple control of the fitted RAID array The status of swap partitions are also reported on this
40. data Once connected and logged in you will be presented with the main summary screen This contains general information about the status and health of the CMG EAM SV n uptirr GCF in Port GCF in Port E Main Status good Status good Status unknown 2009 06 23 T09 36 1 72 2009 06 23TO9 3 7 302 2009 06 23 TOS 3 7 302 menu System has been up Last 5 minutes No blocks seen for approximately 3 days 113 blocks 0 4 dcm105 E per second O naks 0 0 per second system events System status GCF in Port F Version and Status unknown Status good serial numbers tI 2009 06 23 T09 3 7 312 2 009 06 23 T09 3 7 082 No blocks seen NTP has locked Port A sensor nie S GSLA 1566 clock Power Estimated Error Seryjces is 3444115 Clock source is Guralp digitiser Tools CD11 log analyser Firmware GCF audit log viewer GDI channels e La Le W Generated at 2009 06 23709 37 352 Dy Libstates g 1 2 6 Portions of output copyright c 2009 Guralp Systems Ltd The exact contents and layout of this screen will vary depending on the configuration of both the EAM and of any attached hardware 20 Issue C Operator s Guide If the browser fails to connect the most likely explanation is that the machine running the browser does not have working network communications to and from the CMG EAM This can be verified
41. enter a mnemonic description of this instance which may be useful if you intend to run multiple instances The client can be set to start automatically when the CMG EAM boots by clicking the Enable check box or deleted from the system entirely by clicking the Delete check box Server settings Server Hostname or IP address to connect to Port service igstm TCP port number or service name to connect to cone lw a aw Name used to identify client to server reared ao Pre shared key used to encrypt communications Must match server The client will automatically connect to a GSTM server who s DNS name or IP address is specified in the Server field using a port who s service name or number is specified in the Port service field The client identifies itself to the server using a username this can usefully be set to the hostname of the CMG EAM Note The username is the means by which the server refers to this client GSTM communication is encrypted using TLS Each end of any GSTM link needs to be configured with the same pre shared key If the server has already been configured the server administrator will Issue C Operator s Guide give you a value for the Encryption Key field Otherwise enter a random string into this field and let the person administering the server know what you have used Link settings rir of Number of seconds to wait on exit before restarting i a Num
42. for its transport there may be a significant delay between instructing the PPP link to start and the connection being established So that the watchdog does not falsely detect a failed link during this period it can be instructed to sit idle for a number of seconds before it begins to test the link The length of the required delay should be entered into the Daemon startup delay field Once the start up delay time has elapsed the watchdog periodically tests the connection To ensure that there is a valid end to end connection where for example a multi hop link is in use the exact method of testing is user configurable any valid command can be entered into the Test command field and its exit status is taken to represent the link status zero for link up non zero for down The most common method used is to use the ping command to verify ICMP connectivity to the ultimate remote host but you are free to use November 2010 73 CMG EAM Platinum Firmware the command or script of your choice here so long as it returns a non zero exit status on link failure Note When using ping you should always use the c count option or the command will never return The contents of the Time between tests field determines how often the configured test is applied It can be set high to conserve bandwidth or set low to improve failure response times It can also be used to keep a sparsely used link alive where a disconnect on inacti
43. from the Tools menu The following screen appears November 2010 117 CMG EAM Platinum Firmware Home Tools Removable disk Removable disk Connect removable disk and select action Description View filesystems on attached disks Use this to check for valid disks to find a how much space is available to see whether the disk is in use and to view files View filesystems on the disk Write whatever is currently buffered in flash to disk Partition and format attached disks This will erase ALL data on the disk Format disk Note actions may take some time to complete if the disks are not powered up The web page will not load until after this has occurred Please be patient Generated at 2010 01 28T17 23 23Z by rdisk cgi Portions of output copyright c 2010 Guralp Systems Ltd If you wish to retrieve recent data click the Flush to disk button to copy all pending data from the buffer memory to the hard drive A progress screen will display messages as the various stages of the process complete Home Tools Removable disk Flush Removable disk Flush files to disk Data flush has been signalled to daemon This may take some time to complete User triggered flush started Contacting rdisk daemon Rdisk daemon mount complete Flushing GCF buffers Commiting output tree Tree commit completed Releasing storage Flush complete Child exited with status 0 Normally interpret
44. gt gstm server gt 0 Guralp secure TCP multiplexor server configuration User description Guralp secure TCP multiplexor server instance 1 User label for this GSTM server instance Enable O Enable the GSTM server at system startup Delete o Delete this GSTM server instance The User description field is useful if several instances are to be created Enter meaningful names here to help distinguish between them An instance can be set to start automatically when the CMG EAM boots by ticking the Enabled check box and deleted entirely by ticking the Delete check box Issue C Operator s Guide Server settings Bind host The hostname or IP address the server will bind to Leave empty for all Service port 1599 The TCP port number or service name to listen on TCP keepalive E Enable sending TCP keepalives enabling the watchdog is prefered Watchdog interval 30 Period in seconds between watchdog messages If the CMG EAM has multiple IP addresses the GSTM server can be constrained to listen on only one of them by entering its address in the Bind host field If this field is left empty the server will listen on all available IP addresses In the Service port field enter the service name or port number on which you want the server instance to listen If you are configuring multiple server instances each needs a unique service port The service name to port number ma
45. identify this instance in log files The server can be enabled or disabled at boot up using the Enable check box or deleted entirely by selecting the Delete check box To configure the server to listen for incoming data requests only on a specific IP address set this or the associated host name in the Bind host text field By default it will listen on all configured interfaces Set the port port number or service name that you want the server to listen on in the Service Port text field November 2010 145 CMG EAM Platinum Firmware 146 Home gt Configuration gt Services gt gsms out gt 0 GSMS sender configuration User description GSMS sender instance 1 User label for the transmitter instance User label Application label used for identification in logs Enable E Enable the transmitter at system startup Delete go Delete this transmitter instance Network parameters Bind host The hostname or IP address the server will bind to Leave empty for all Service port 9001 The TCP and UDP port number or service name to listen on If you want the server to pro actively send data to remote GSMS receivers enter their IP addresses or host names in the Push host column and port numbers or service names in the Service column of the Push hosts table For each select TCP or UDP from the Protocol drop down menu this must match the receiver s setting Push hosts i ma CO e
46. if a tap configured for 25 samples per second the three filters offered will have pass bands of 1 25Hz to 11 25Hz 2 5Hz to 11 25Hz and 6 125Hz to 11 25Hz The periods over which the short term and long term averages are computed along with the triggering ratio itself can be altered by changing values in the table The check boxes next to each component are used to enable or disable the use of that component s output in the STA LTA triggering algorithm Level triggering is controlled by the following dialogue m Level trigger Trigger input Tap 0 500sps Trigger highpass filter Disabled v Enable Triggering channel level Z 0 214748364 N 1 ameze E 2 214748364 X 3 214748364 External trigger November 2010 83 CMG EAM Platinum Firmware 84 The tap to be used as input should be selected from the Trigger input drop down menu All configured taps are available regardless of whether they have been selected for continuous output or not An optional highpass filter can be applied to eliminate the effect of any DC offset in the sensor s output The available corner frequencies are 100 300 and 1000 seconds The check boxes labelled with component designators are used to include or exclude the associated component from the triggering algorithm If one is ticked a trigger will be activated if that component s instantaneous output exceeds the value entered into
47. interface also supports a number of advanced facilities which are not available via the main configuration system these are mostly diagnostic tools which are not required for normal operation 3 1 Using the configuration system via the web interface The web interface to the configuration system is split into two frames _ a Ee 7 Main Status good Status unknown Status unknown 2010 01 15T16 17 012 2010 01 15T16 18 092 2010 01 15T16 16 092 menu System has only just come up eam2 243 Status unknown 2010 01 15T16 17 582 ig ee ee eer Pept wh Ww ar arii ic hero L System status Version and serial numbers e NTP has not locked the syster clock as the estimated error is too large e Estimated error a MT ARII i Ti _ Reboot The left hand frame contains the system ID above a menu while the right hand frame displays sub menus input forms and display screens When a sub menu has been used the top of the right hand frame shows the menu options that have been selected in order to reach the current screen These options are hyper linked and can be used to return to previous screens November 2010 27 CMG EAM Platinum Firmware In the example shown below the operator has clicked on All options in the left hand menu in the Configuration section and then chosen Networking from a right hand pane sub menu and the
48. key Many of the configuration forms have two modes simple and expert They display by default only the parameters most likely to be used For example the network interface form does not normally display IP aliasing parameters When access is required to these additional features they can be displayed by using the lt expert button displayed at the bottom of the form They can be hidden again by using the lt simie button It is also possible to toggle between simple and expert mode using the key Some forms are too large to fit in a single page In this case an indicator appears at the top right of the screen For example the network interface configuration form in expert mode takes three pages to display File Edit View Terminal Help Network Interface Configuration Page 1 of 3 Network Interface etho To move to subsequent pages you can use either the i or the key Page To return to previous pages you Can use ffA or When all required fields have been set to the desired values the changes can be enacted by using the lt subm button or the F4 key 34 Issue C Operator s Guide It is possible to leave any form by using the o button or the key but if you have made changes to the contents of any fields the system will warn you that you will lose your changes if you continue It offers an opportunity to return to the form File Edit View Terminal Help EAM Configu
49. latitude longitude elevation the geoid the offset of the location from the theoretical earth surface and whether to invert the Pulse Per Second signal if unchecked the PPS line will be briefly asserted each second on the second and held to ground at other times It is not essential that the position string sent matches the physical location of the digitiser as only the GPS time signal is used by the digitiser Click Submit to save the changes The following additional parameters are available in expert mode Whether the pulse per second signal should be inverted Log level Important notices Minimum severity level of messages to record in log Max NTP error Maximum clock drift in microseconds to accept as locked Path to log file Leave blank to use syslog Home Help Simple Submit Generated at 1970 01 02T01 16 272 by 6cs 2 9 2 Portions of output copyright c 1970 Guralp Systems Limited It may sometimes be desirable for debugging purposes to separate log messages for this input from the standard system log The Log file text field can be populated with a path name which will then be used for dedicated logging If left blank logging occurs via the standard Linux syslog facility to var log messages The Log level drop down menu controls the level of detail present in log messages whether to syslog or to a dedicated log file Not all of the standard syslog logging levels are
50. log If you suspect that there has been a problem with an upgrade or you wish to have full details of what has changed you can inspect this file by issuing the command eam999 less var log upgrade log You can scroll forward through the file simply by pressing the key For more control you can move forward and backwards line by line with the and A7 keys or page by page with the jay and Page Down keys The Q key should be used to return to the command line If you wish to obtain a copy of this log file it can be copied from the system to an external computer either via the serial port see section 10 3 1 3 on page 124 or over the network see section 10 3 1 2 on page 120 November 2010 51 CMG EAM Platinum Firmware 5 Data Handling Overview The data handling system of the CMG EAM is very flexible due to its modular software architecture All data flowing through the CMG EAM is routed through a single multiplexor module called gdi base This communicates directly with all input modules which handle the various incoming data streams and all output modules which convert the data into the required formats All incoming data is stored and accessed internally in an intermediate format regardless of the format in which it was originally received Note The sole exception to this is incoming CD1 1 data which for reasons related to frame signing an authentication technology do not pass through gd
51. m a a E a eee eeeeee eee eee ee 6 eee ee eee eee eee ee 8 2 Note The external GPS connector is disconnected when Port C of the EAM is set to NMEA Out and connected to the digitiser s GPS input in all other cases To configure the NTP subsystem see section 6 3 on page 64 To configure NMEA output see section 8 6 on page 94 8 5 Configuring NMEA as an NTP clock source To configure NTP to use NMEA as a clock source two steps are required First tick the Acquire time from connected GPS check box in the NTP configuration page as described in section 6 3 on page 64 Secondly configure the relevant serial port as an NMEA input To do this using the web interface select Serial ports from the Configuration All options menu or select the Serial ports short cut from the Configuration Data transfer recording options menu To configure an NMEA input from the command line start gconfig and select Serial ports from the top level menu November 2010 93 CMG EAM Platinum Firmware Next select the serial port from which you want to input NMEA Note For authenticated digitisers this will be Port C For more details of Authenticated Digitisers please see section 14 2 on page 190 Set the Port function to NMEA out NMEA time fixed position output and the Port speed to 4800 Click Submit to save the changes Home
52. making this particularly efficient when used regularly For more advanced usage please see the rsync manual available on line at http man wiki net index php 1 rsync 2006 11 06 Windows users can download a free port of rsync using the cygwin library see http Awww cygwin com for more information or use one of several free graphical interfaces such as grsync available from http sourceforge net projects grsync win files November 2010 123 CMG EAM Platinum Firmware The following screen shot shows grsync about to download all data from a removable drive Note the password prompt appearing in the separate console window c Grsync rooteS1 187 138 165 s Preserve time Preserve owner Delete on destination Ol Do not leave filesystem Show transfer progress Ol lgnore existing OI size only Ol Skip newer LJ Windows compatibility 10 3 1 3 Downloading over a serial port using the command line In situations where it is not convenient to use the network interface files can be downloaded from the removable disk using one of three file transfer protocols X modem Y modem or Z modem None of these protocols were ever rigidly standardised so if you are not using one of the terminal emulators discussed in this section you may need to experiment a little this is reflected in the huge range of optional arguments that the transfer program accepts The X modem transmitter is invoked as sx the Y modem transmitter
53. physical interface configuration screen as described in section 6 1 2 on page 58 and are not discussed further here 6 3 Network Time Protocol NTP The Network Time Protocol NTP is a method of synchronising the clocks of computer systems over networks including those with variable latency such as packet switched networks Platinum firmware include a fully featured NTP implementation which can be used to keep the system clock synchronised to external time sources such as Internet NTP servers connected digitisers and connected GPS receivers CMG EAM hardware includes a battery backed real time clock RTC module which can retain system time with tolerable accuracy during periods of power loss This is also true of CMG NAMs and CMG DAS units incorporating CMG EAM modules but not of CMG DCMs and earlier CMG DAS units with internal CMG DCM modules their system time will revert to January the 1 1970 after each power cycle The system clock is used to provide time stamps for log file messages and can also be used to generate NMEA and PPS signals emulating a GPS receiver in order to synchronise external equipment such as a CMG DM24 digitiser module This technique is described in section 8 5 on page 93 The NTP subsystem displays its status in a panel of the System status display of the web interface This panel includes the current system date and time the lock status estimated error and current clock source 64 Issue
54. place of the address shown Note Both the static IP address and any route configured in this way are temporary and will persist only until the CMG EAM is rebooted or powered off Refer to section 6 1 on page 55 for information about configuring permanent static IP addresses and routes 2 2 3 Connecting to the web interface The CMG EAM provides a web HTTP interface which is intended to be used for most configuration and control tasks This is the recommended way of controlling the CMG EAM November 2010 19 CMG EAM Platinum Firmware Once the IP address of the CMG EAM has been set or determined you can connect to its web server Simply type http followed by the IP address of the unit into your web browser s address bar e g http 192 168 0 1 You should be prompted for a user name and password The user name is root and the initial password as shipped is rootme the same as on the command line If you are connecting to the CMG EAM over a network that you consider insecure it is recommended that you use the HTTPS secure HTTP protocol which uses TLS to encrypt the link Simply change the http prefix to https in the browser s address bar Most browsers will complain that the certificate cannot be verified This is not a problem simply press the accept button to proceed The link will then be encrypted and nobody will be able to sniff the wire in an attempt to discover passwords and other
55. putty The next section will discuss the use of the ssh command line utility PuTTY specific details are provided in the section after 2 2 4 1 SSH connections using the ssh program To use SSH you must know or discover the IP address of the unit as described in the previous section Once you have the IP address issue the SSH command on the PC you are using mypcS ssh root 192 168 0 1 Replace 192 168 0 1 with the IP address of the CMG EAM November 2010 21 CMG EAM Platinum Firmware The first time you use SSH to connect to a host you will be asked to verify the host key This can be ignored the first time but if you are ever asked this again it means that either the host key of the CMG EAM has changed perhaps because of a firmware upgrade or there is a network address conflict or worse a security problem on your network user mypc ssh root 192 168 0 1 The authenticity of host 192 168 0 1 192 168 0 1 can t be established RSA key fingerprint is 62 a6 70 29 d4 1a db 5a 75 6e 96 13 54 f5 a9 d9 Are you sure you want to continue connecting yes no yes Warning Permanently added 192 168 0 1 RSA to the list of known hosts root 192 168 0 1 s password eam999 You will be prompted for a password the default password is rootme Note that no characters will be echoed to the screen as you type the password Once connected you will be presented with a shell prompt which is ready to accept co
56. server and the EAMs you will need to open channels through them for this port You will also need to choose a module name for the server This can be any descriptive string but for simplicity it is best to stick to numbers lower case letters and hyphens The name platinum Issue C November 2010 Operator s Guide local mirror has been used in the following example and should be replaced with the module name you have chosen Create the file etc rsyncd conf with the following contents port 61616 platinum Local mirror path path to your local mirror directory comment GSL EAM firmware numeric ids yes log file path to writeable log file timeout 600 hosts allow Consult the manual page for rsyncd conf 5 for details of further options that you can use in this file including security improvements that you may wish to put in place This is available on line at http man wiki net index php 5 rsyncd conf Once the etc rsyncd conf file is ready you can start the rsync server with the command sudo rsync daemon If you want to run the rsync server permanently it is possible to start it via inetd xinetd or an rc script Consult the manual page for rsyncd conf 5 for further details Configuring the upgrade system to use the new server The standard upgrade source must be over ridden on each unit to be upgraded create the file etc conf d upgrade local with the following content
57. socket conforming to DIN 41652 and MIL DTL 24308 They are very widely available as are suitable mating connectors Pin Function 1 2 3 4 5 6 7 8 9 not connected RS232 transmitted data RS232 received data not connected Ground not connected not connected not connected not connected Wiring details for the compatible plug DE9M as seen from the cable end i e during assembly 202 Issue C 14 3 6 Cylinder GPIO These are standard 12 pin mil spec sockets conforming to MIL DTL 26482 formerly MIL C 26482 A typical part number is O2E 14 12S although the initial 02E varies with manufacturer Suitable mating connectors have part numbers like 14 12P and are available from Amphenol ITT Cannon and other manufacturers Operator s Guide The USB lines provide external host access to the internal USB memory device When power is sensed on pin J an internal switch disconnects the memory device from the internal circuitry and connects it to this socket Pin Function Anti tamper line 4 Anti tamper line 3 Anti tamper line 2 Anti tamper line 1 Console transmit RS232 TXD Console receive RS232 RXD Ground USB Type A pin 4 Anti tamper line 0 Ze Ie Ann an sl es ele a Ground K K lt during assembly November 2010 USB Data ve USB Type A pin 1 see text above USB Data ve USB Type A pin 3 see text above USB Power input USB Type A pin 1
58. syslog Log level important notices v Minimum severity level of messages to record in log GDI multiplexor Default data transport daemon Select which GDI multiplexor to gather data from Home Help Simple Submit Generated at 1970 01 07T18 29 572 by scs 2 0 0 Portions of output copyright c 1970 Guralp Systems Limited It may sometimes be desirable for debugging purposes to separate log messages for this transmitter from the standard system log The Log file text field can be populated with a path name which will then be used for dedicated logging If left blank logging occurs via the standard Linux syslog facility to var log messages November 2010 147 CMG EAM Platinum Firmware The Log level drop down menu controls the level of detail present in log messages whether to syslog or to a dedicated log file Not all of the standard syslog logging levels are available The menu offers a choice in order of decreasing detail of Debugging information Informational messages Important notices or Warnings In most configurations all data for all transmitters is taken from a single multiplexor as described in section 1 3 on page 10 For more complex configurations it is possible to configure multiple multiplexers each with their own set of input and output services In these situations the GDI multiplexer drop down menu can be used to select a multiplexer instance with which to associate this transmit
59. that an extra serial number be added to the digitiser See the relevant digitiser manual for information on how to configure this The menu items look like this Main menu tantalum ummary wire system status Version and serial numbers Port A sensor C914 3K55 ae Reboot ii Services la Tools e Esi CD1 1 log analyser e T ce Cle In this illustration the entry Port A sensor C914 3K55 indicates the physical connection Port A to the attached device the device type sensor and its serial number C194 3K55 If the instrument is connected via TCP the EAM connection is shown as host port Selecting one of these menu items takes you to the Digitiser Control page From here one can query mass positions lock unlock and centre the sensor masses and perform calibration functions Where the attached device supports additional functions such as bowl levelling in an ocean bottom system additional controls will appear on this screen to support these features The screen is shown here in sections The first deals with the sensor masses Buttons are provided to query the mass positions to lock the masses for transport and unlock and centre them for deployment The verbatim output from the attached device is displayed in each case Where a specific device does not support a specific function the command is safely ignored 174 Issue C Operator s Guide Home Control gt Digitiser C914
60. the acquisition module This can be accessed from the command line of the acquisition module or if desired made accessible over the network If you wish to disallow network access set the service on the EAM s Port B to none To enable access over the network set the service on the EAM s Port B to TCP serial converter Serial data to TCP link converter and configure the converter according to the instructions in section 6 7 on page 74 It is currently possible to set the Baud rate of the digitiser s console port and of the EAM s Port B independently leading to a loss of data communication between the two modules if the two do not match If you wish to have a higher transfer rate between the two modules both ends must have their Baud rates increased separately The digitiser module s Baud rate must be changed first Port C of the acquisition module is used for synchronisation and can either provide NMEA to the digitiser module or share incoming GPS data from an external receiver Different internal connections are used in each case an analogue switch is controlled by the service selected for the EAM s Port C When the Port C service is set to NMEA In the connections are as follows q EEE EEEIEE x NI Sdo Part C NMEA In U O OO gHHEHEHHsES Console Jasi51q AM Data Port A E E E E E E E E a E E E E a O E APPR e eee eee een es o s eR Bee ee Pee e eee ee o
61. they will take effect Please consult the digitiser manual for more information 88 Issue C Operator s Guide 7 2 Configuring digitisers from the command line Platinum provides a tool data terminal which allows direct access to the command line of any serially attached digitiser This gives the greatest level of control but also involves the most complexity Interactions with the digitiser s command line are beyond the scope of this document please consult the relevant digitiser manual for information on this topic This section discusses use of the data terminal tool only To invoke the tool enter the command data terminal You will be presented with a menu listing all digitisers to which a connection can be made File Edit View Terminal Help Select instrument for terminal mode lt OK lt CanceL gt Select the required digitiser from the menu The data terminal program will suspend any service running on the associated port and start a minicom session with the correct communications parameters already set The use of minicom is described in section 14 4 on page 211 When you have finished configuring the digitiser key ee 2 then fe to exit Any previously running service will be restarted November 2010 89 CMG EAM Platinum Firmware 8 Digitiser Synchronisation Accurate time stamping of samples is essential to seismology G ralp Systems Ltd recommend the use of GPS receivers for gen
62. upgrade script with the argument restore defaults eam999 upgrade restore defaults Watch the screen for any error messages and then reboot the unit to complete the process Issue C Operator s Guide 4 3 3 Upgrade and force factory defaults The third upgrade option effectively wipes everything other than the hard drive while installing the new revision leaving the unit as it would be delivered Avoid using this option if you have made any customisations to your unit or installed any scripts If in doubt please consult G ralp Systems Ltd technical support for advice before proceeding Conversely if you have made changes which you believe have adversely affected the unit but are having trouble undoing them this option lets you start with a clean slate To invoke this option from the web interface select Firmware from the Tools menu but then press the Advanced options button From the resulting screen press the Upgrade force factory settings button Watch the screen for any error messages and then reboot the unit to complete the process To perform this action from the command line invoke the upgrade script with the argument force factory settings eam999 upgrade force factory settings Watch the screen for any error messages and then reboot the unit to complete the process 4 4 Upgrade logs The upgrade process stores all progress and error messages in the file var log upgrade
63. using the Platinum web configuration interface or directly from the digitiser s command line In either case the digitiser module must be re booted before the new value will take effect The gain settings are reported in the status stream at boot time ADC 1 Version 760303 ADC o s nulls 0 0 0 0 4 channel system Gain Control E8 Gain settings Ch 0 1 Ch 1 1 Ch 2 1 Ch 3 1 November 2010 193 CMG EAM Platinum Firmware In the example above all channels are set to unity gain channel 0O is the vertical component and 1 2 and 3 are the North South East West and auxiliary calibration channels respectively On a seven channel digitiser channels 4 5 and 6 are the vertical North South and East West components for the second instrument If variable gain aware firmware v106b42 and above is loaded on a digitiser without variable gain hardware the text No gain stage will appear in this position in the boot status stream The selected gain setting is encoded into the GCF headers by appropriating bits from the System ID which must therefore be chosen to be five or fewer characters long See the note at the end of this section for more information The InfoBlocks see section 7 on page78 should be changed to reflect the amended System ID but the gain figure taken from the calibration document should be used unchanged regardless of the variable gain setting chosen Similarly the calvals file in Scream should not
64. which are described in section 10 2 on page 109 A similar arrange applies to miniSEED data the gdi2miniseed module provides data to the SEEDlink server and to gdi record Output Modules SEEDIink server Modules gdi base i reeder 54 Issue C Operator s Guide 6 Configuring Networking Platinum firmware includes comprehensive support for Ethernet networking Features include VLAN virtual network support an iptables firewall and IPV6 support Minimal network configuration is described in section 2 2 on page 17 and those steps will allow you to communicate with your device over a network The configuration changes made in that way will not however survive a reboot to make the configuration permanent follow the procedures in this section 6 1 Configuring physical network interfaces The hardware of a CMG DCM CMG EAM or CMG DAS has a single physical network interface while CMG NAMs may be equipped with multiple physical network interfaces Platinum firmware follows the standard Linux convention of naming the first physical network interface present on a system eth0 and subsequent interfaces eth1 eth2 etc To configure a physical network interface from the web interface select Networking from the Configuration All options menu or select the Interfaces short cut from the Networking menu To configure a physical network interface from the command line start gconfig a
65. which is accessible via USB It can be written to by selecting Internal USB storage from the Recording destination drop down menu on the Disk recording menu see section 10 2 on page 109 When a USB host such as a laptop or PC is connected to the GPIO port who s pin out is given in section 14 3 6 on page 203 internal circuitry detects the USB power and automatically connects the Flash memory to the USB socket causing it to behave identically to a standard USB memory stick When no power is detected at the USB port the Flash memory is available to the system as if it were a standard removable disk All of the disk recording options described in section 10 2 on page 109 will apply to this device 196 Issue C Operator s Guide 14 2 3 2 USB host mode If a USB storage device is connected to the USB port who s pin out is given in section 14 3 8 on page 205 it will be mounted under media It can be used to store seismic data by selecting External USB drive on mil spec connector from the Recording destination drop down menu on the Disk recording menu see section 10 2 on page 109 109 November 2010 197 CMG EAM Platinum Firmware 14 3 Connector pin outs 14 3 1 Peli case PORTs A B C These are standard 10 pin mil spec sockets conforming to MIL DTL 26482 formerly MIL C 26482 A typical part number is O2E 12 10S although the initial 02E varies with manufacturer
66. which will then be used for dedicated logging If left blank logging occurs via the standard Linux syslog facility to var log messages The Log level drop down menu controls the level of detail present in log messages whether to syslog or to a dedicated log file Not all of the Issue C Operator s Guide standard syslog logging levels are available The menu offers a choice in order of decreasing detail of Debugging information Informational messages Important notices or Warnings In most configurations all data for all transmitters is taken from a single multiplexor as described in section 1 3 on page 10 For more complex configurations it is possible to configure multiple multiplexers each with their own set of input and output services In these situations the GDI multiplexer drop down menu can be used to select a multiplexer instance with which to associate this transmitter The menu offers a list of currently configured multiplexers 11 6 WIN Sender WIN is a Japanese seismic data format To set up a WIN server on the CMG EAM using the web interface select System services from the Configuration All options menu or select the Services short cut from the Data transfer recording menu To configure a WIN server from the command line start gconfig and select System services from the top level menu Now select win out WIN sender from the System Services men
67. 0000002 4838 S5STP20 1 32 bit floating point samples 1 sps 6 449163 2009 7 14711 3232 447 00000010 08000002 A830 S5TP20 1 32 bit floating point samples 1 sps 6 468655 2009 07 14T11 32 457 00000010 00000002 A830 S5TP20 1 32 bit floating point samples 1 sps 6 135324 2005 07 14T11 32 467 00000010 00000002 A830 S5TP20 1 32 bit floating point samples 1 sps 6 133336 AAAAAAAS 4270 55 November 2010 187 CMG EAM Platinum Firmware Check boxes are available to toggle the display of both metadata and sample data These can be changed at any time and the Restart dump button used to refresh the display For sample data each line displays the sample s time stamp the segment ID the channel name in parentheses the sample type and the actual sample value A button at the bottom of the screen allows the display to be refreshed with current data There is also a button which when clicked returns the user to the main GDI Channels Display index page so that another channel can be inspected 188 Issue C Operator s Guide 14 Appendices 14 1 Setting the System Identity Hostname The system identity is pre set at the factory to contain a device type identifier and the system s serial number such as EAM2010 It should not be necessary to change this but should you desire to the following procedure can be used To set the system identity using the web interface select System identity hostn
68. 10 Guralp Systems Limited In this instance no services are configured so the only option is to create a new Service When Create a new service instance is selected the following screen is displayed 72 Issue C Operator s Guide Home Configuration gt Services gt pppd watchdog gt 0 PPP daemon watchdog User PPP link watchdog instance 1 description User label for the service instance Enable o Enable the service at system startup Delete go Delete this service instance Daemon e startup 30 S i delay Length of time in seconds for the PPP daemon to start Test bin ping c 5 gstm guralp com command Command to run to test the link is active Lad S Time 30 between tests Reboot fail 30 count Number of failures before system is rebooted s Length of time in seconds between test runs Home Help Expert Submit Generated at 2010 01 26T11 08 342 by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited If you are configuring a number of watchdogs you can use the User description field to give each of them memorable names The Enable check box should normally be ticked but can be left clear if you only want to use the associated PPP connection occasionally An existing watchdog service can be stopped and its configuration deleted by selected the Delete check box and then clicking the Submit button If the PPP connection relies on a modem link
69. 14 4 ROSIE EL NetWorkiNg cage cosawinest aivcundalbnabinbsanbienacsde tear eaRadankaisermierannuGtenees 13 LED AGED TINGE WOP KING girri AT TETT N 14 Lo Document Conven UON S rerien a ER NEEE 14 2 First SLO DS merre E E T E 15 2 1 Gonnecting to the Serial POT cdicsscascicstacoxectarivedooetadsvawuxts A A A da 15 22 GCOUMECHNEG tothe network DOM arie ena E NSR 17 2 2 1 OMG Passi Gned ad GLCSSOS ciciacGutcwtasiiea e aa 18 222 KSSISWiINS a stalc IP GAClESS ay o s aceasta emanates 19 2 2 3 Connecting to the web interface cccccccssssescceceessesceeseseeseseceeeeeeeeseeas 19 22 Connec une Usine SSH erran rE E te smiledic E EO 21 23 Crane nS LHC ASS WO daea a a wiles a a a aa 24 3 Configuration System OvervieW ssssssessssssceossssecosssssccossssecossssecoossssecosseseeeosssee 27 3 1 Using the configuration system via the web interface cccccseeceeseeeeeneees 27 3 2 Using the command line configuration SYStOM ccccccccsssseseceeeseeeeeeeeeeeeens 30 Bled LOM CMU Y Helds 5 54s na rinnccaaevadn T 32 SEZ GMCCKADOX CS Sers n E E 33 32223 Drop down meU srein E N 33 D250 USME LOTS aae a E EET NT 34 39 COMM eUTratlon MaiiaGeml Cli lenen A T 36 FT Savine A COMMOMTAM Oaa T E E T av eiaes heiaens naan 37 3 3 2 Deleting a saved COMfiGUratiON cccccccccsssesccccceeeecceceaaeeseceseueeeseeeeaanees 37 3 3 0 RESLOLING a configurati gisius eniai E a AE OAA 38 A Firmware WOT ad OS anevoios niena ena aTa AENE
70. 2miniseed Mini SEED compressor instance selection Select the Mini SEED compressor instance you wish to configure e Mini SEED compressor Default instance does not start automatically Create new service instance Home He p Expert Submit Generated at 1970 01 06T02 36 012 by scs 2 9 3 Portions of output copyright c 1970 Guralp Systems Limited Although the default instance is marked as does not start automatically it will be started if a dependant service is started You can reconfigure any existing compressor by clicking on its menu entry To configure a new Mini SEED compressor instance select Create new service instance The following screen allows you to configure the parameters of the compressor The first part of the screen looks like this Home Configuration gt Services gt gdi2miniseed default GDI Mini SEED compressor gqdi2miniseed converts samples acquired through the system into Mini SEED Data only SEED blocks suitable for use with other 3rd party software Compressed blocks are written into a ring buffer for recording transmission and backfill User Mini SEED compressor Default instance O Z OZO SS O description User label for this Mini SEED compressor instance Enable o Enable the compressor at system startup ou Ring buffer size in MiB Block size 512 bytes v Size of the mini SEED data block recorded November 2010 139 CMG EAM Platinum Fi
71. 3 1 2 System Log The most important source of diagnostic and debugging information is the system log facility syslog This logs all messages from programs and from the Linux kernel At present this can only be viewed from the command line To view the system logs you can use the tail less grep or vi commands to inspect the file var log messages older files are available as var log messages 1 var log messages 2 etc Use the following syntax to view the files tail var log messages Views the last few entries e tail f var log messages As above but after printing the last ten lines of the file November 2010 169 CMG EAM Platinum Firmware continues to run printing each new line as it is added to the log Type Ea fa to stop the output and return to the command line less var log messages Views the whole log file use the cy vi navigate and the key to exit Sea and keys to vi var log messages Those users familiar with the vi text editor may wish to use it as the most powerful way to view log entries grep i string var log messages Searches for a string or pattern in the log file This search is case insensitive i flag grep is a very powerful tool for searching for patterns For more information see the section on Regular Expressions in the grep manual page at http man wiki net index php 1 grep 13 1 3 Incoming Data The status web page has one box for each GC
72. 7 CMG EAM Platinum Firmware 38 3 3 3 Restoring a configuration The same screen is used for restoring a configuration Simply select the required saved configuration from the list at the top of the page and hit the restore button The following screen appears Configuration management 2003 07 13 15 59 test Restore modules Checked modules will be restored Module Description platinum Main instrument and data processing configuration i network Networking and communications configuration werid User names ID and passwords system dditional system core configuration Restore type User files restore C Pull core restore O Pull restore and purge all other modules Action Restore configuration Dry run restoration Return to Configuration management main form Generated at 2009 07 13T15 59 342 DY config masage cgi 6 2 3 Portions of output copyright c 2009 Guralp Systems Lid The date and time at which the configuration was saved is shown in the example above this is the 13 of July 2009 at 15 59 The name of the configuration is also given in the example above this is test Even if a configuration was saved with all modules selected it is possible to restore only a subset of configuration information Select what you wish to restore by ticking or clearing the appropriate check boxes Unless you are recovering from say a corrupted device you should leave the Restore type
73. 87 47 6C 16 36 37 694 GCF block received Block type data T T a Sample rate 20 samples second 1F 14 l 14 329 hit The first column shows the time that the block was received not the time stamp on the block itself and the second column shows the event type GCF block received in most cases The Details column shows the stream ID from the received data block and the block time stamp The digitiser ID is shown if it is encoded in the block otherwise a best guess is displayed The rest of the entry shows the block type sample rate compression level and the number of samples in the data block A hexadecimal display of the block header is shown in the final column An example of an audit log display for an out going data stream is shown below This data is for the Scream network server The first column now shows the time that the block was transmitted other details are the same as in the previous example 184 Issue C Operator s Guide GCF audit log viewer Scream GCF network server instance default Search within this log Recent entries Time Type _ _ Details Her 2009 07 13 ID A830 39TP30 Timestamp 2008 07 135T 16 18 44 0000000002 Digitiser unknown probably CMG DM24 m3 16 27 05 228 entBlock type data Sample rate 1 samples second Compression 16 bit Number of samples 500 ID ABSO 55TP30 Timestamp 20089 07 13T16 18 44 0000000002 Digitiser unkno
74. AN ATAN 40 4 1 Determining the current firmware leVel cccccccccssseeeececeeeeeaeesaeeseeaeeenas 40 AD Upgrade Methods ussisrsiesi e E a 41 AD A WI peragi me via theinterne oseere E A A 41 2 Issue C Operator s Guide 422 Upgrading Trom aloca inio consin T 42 4 2 3 Upgrading from a USB storage device essssesessserrersssressrrrsrreserssrrssns 46 AS Uperid TYPO Serenan E R eaten 49 ADA Standard uptrid ean A cakes 49 A2 Uperade and restore delmi orenian nna E ind wacataneeeneas 50 4 3 3 Upgrade and force factory defaults ineuniescannn is 51 BA J SPADC NODS secession acieradaesinienssaininahisiudon aes Oa Raia A E eteseet ind 51 5 Data Hand line OV er view oirir nan EE ETEO 52 6 Contieuriie Ne TWOPK ING yxissresswssnsaceseirncicatsaiasutannctecuaseanenscghadiautuenaneenasa eaten iiuesss 55 6 1 Configuring physical network interfaces ccccccccsseesccceeeseeeeceeeaeeceeaeeeeas 55 6 1 1 Configurable parameters in standard MOE ccccsseccesececseeeeeeeenaeees 56 6 1 2 Configurable parameters in expert MOEC ccsecccecseecceeeeeeeeeeeeeseeaeses 58 6 2 Virtual network VLAN interfaces cccccccscceseccceessesesseeesenesseeseesseeceensens 61 6 2 1 Configurable parameters in standard MOE ccccseecccseceeseeeeeeeeeeaeees 63 6 2 2 Configurable parameters in expert MOE cceecccccseeeeeeeecneeeeeeeseeeeees 64 6 3 Network Time Prol ocol INTP encena n E A TAT 64 6
75. EEDlink server from the web interface select System services from the Configuration All options menu or select the Services short cut from the Data transfer recording menu To configure a SEEDlink server from the command line start gconfig and select System services from the top level menu Now select seedlink out SEEDlink network server from the System Services menu The next screen shows a list of all SEEDlink server instances that have been configured 142 Issue C Operator s Guide Home gt Configuration gt Services gt seedlink out SEEDlink network server instance selection Select the SEEDlink network server instance you wish to configure e SEEDIlink network server instance 1 starts automaticall Create new service instance Home Help Expert Submit Generated at 1970 01 06T03 28 382 by scs 2 9 3 Portions of output copyright c 1970 Guralp Systems Limited You can reconfigure any existing service by clicking on its menu entry To configure a new SEEDlink server select Create service instance The following screen allows you to configure the parameters of the server Home gt Configuration gt Services gt seedlink out gt 0 SEEDlink server configuration User description SEEDlink network server instance 1 User label for this SEEDlink server instance Enable Enable this SEEDlink server at system startup Delete go Delete
76. EL b Set output low switch off o oe stan ee fe E e et SEC OUIBUT ALIN SWIECA en F pa The first part of the page duplicates the information shown on the main screen The remainder of the page provides a more detailed report Properties Current voltage Bus Voltage V Read only 12e current Current A Read only 0 255 power Power W Read only 3 29 low_voltage threshold Low voltage cut off threshold V Read write 0 000 cutotf hysteresis Cut off hysteresis V system True if this line is internal to the Refresh li En aa Generated at 2010 02 04T11 19 52Z by ioline cgi 1 9 6 Portions of output copyright c 2010 Guralp Systems Ltd Issue C Operator s Guide It is possible to protect attached devices from under voltages by setting a Low voltage cut off threshold value If the monitored voltage falls below this value it is automatically turned off To prevent rapid repeated power cycling of attached devices a hysteresis value should be set The monitored voltage must rise above the sum of the threshold voltage and the hysteresis voltage before the supply will be re enabled Click the Return to front page button to display the main Digital I O summary again Below the port power monitors the summary screen displays the anti tamper lines when these are fitted SEL OUTPUL MgA SWEN Oil View details setti
77. F acquisition process This box will be updated every minute to reflect the number of packets that have been acquired To view details of incoming GCF format data using the command line use one of the following commands gdi dump 1 Displays a list of channels and segments For more information see GDI Channels Display in section 13 3 3 on page 185 gdi dump lm Displays the the same data along with meta data added by the relevant input module or gdi dump Displays real time information about each packet arriving until interrupted by the operator typing A 170 Issue C Operator s Guide 13 1 4 Version and Serial Numbers The Version and serial numbers item on the Summary menu displays information which may be useful for your own records or when requesting technical support See section 4 1 on page 40 for more details 13 2 The Control Menu The Control menu of the web interface is a dynamic menu with content that changes depending on the attached devices Two items on this menu are always present Reboot and Services CMG NAM units fitted with RAID arrays will also have a RAID array services menu item Other items will appear as required depending on both the underlying hardware and attached devices 13 2 1 Digital I O power control and anti tamper monitoring The CMG EAM mk4 hardware can be fitted with optional sensors to monitor the voltages and currents bein
78. Hloprtv exclude resolv conf rsyne GSLSRC CMG NAMs This architecture currently requires around 94MB of disk space for the mirror GSLSRC rsync guralp com platinum stable CMG NAM ESYNC KOHloprey ex l ude resolv Goni Psyncty SGSESRC CMG NAM64s This architecture currently requires around 125MB of disk space for the mirror GSLSRC rsync guralp com platinum stable CMG NAM64 rsync EgHloprtv exclude resolv conf rsyne GSLSRC Setting up a local rsync server Your local rsync server is configured by creating the file etc rsyncd conf If the serving host already runs an rsync server you should modify this file basically add an extra module in order to allow access from the EAMs to the mirror directory we assume that you have the knowledge to do this without further assistance This section covers setting up a new dedicated rsync server You will need to choose a TCP port number which will not conflict with another service on your network The port number should be greater than 1024 in order to avoid additional complexity Consult your network administrator for an available port or simply try 61616 and if you get an error saying that the port is in use when you attempt to start the server choose a different random number in the range 49152 65535 61616 will be used in the following example and should be replaced with the port number you have chosen or been allocated If there are firewalls between your
79. Home Confiquration gt Services gt gcf in brp GCF BRP network client instance selection e Create new service instance Home Generated at 2010 01 26T13 11 452 by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited To configure a new GCF BRP receiver instance select Create new service instance The following screen allows you to configure the parameters of the service November 2010 101 CMG EAM Platinum Firmware 102 Home gt Configuration gt Services gt gcf in brp gt 0 Network BRP client settings User description GCF BRP network client instance 1 User label for the receiver instance User label Network BRP in 0 Application label used for identification in logs Enable go Enable this BRP receiver at system startup Delete o Delete this BRP receiver instance Remote server The remote server to connect to for data Remote service 10002 The remote service or port number to connect to Allow disconnects amp Attempt to reconnect broken TCP connections Disable rewind 0 Disable BRP rewinding for DM24s in adaptive mode etc Home Help Expert Submit Generated at 2010 01 26T13 17 272 by6cs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited 9 2 1 Configurable parameters in standard mode The User description text field sets the name of the service this should be set to a meaningful name for the data that it will be receiv
80. L NAM can be installed anywhere that has a fixed IP address and used as a communications hub All sites initiate GSTM connections to the hub which can then act as a communications router forwarding individual connections as required The initial link is established from a GSTM client to a GSTM server 12 2 1 The GSTM Client To set up a GSTM client on the CMG EAM connect to the CMG EAM configuration system via web or terminal From the main screen select Services then Guralp secure TCP multiplexor client The next screen shows a list of all GSTM client instances that have been configured on the CMG EAM Home Configuration Services qstm client Guralp secure TCP multiplexor client instance selection Home He Expert Submit Generated at 1970 01 06T19 39 39Z by scs 2 9 9 Portions of output copyright c 1970 Guralp Systems Limited November 2010 161 CMG EAM Platinum Firmware 162 To configure a GSTM client click Create new service instance The resulting screen allows you to configure the parameters of the new instance Home gt Configuration gt Services gt gstm client 0 Guralp secure TCP multiplexor client configuration User description Guralp secure TCP multiplexor client instance 1 User label for this GSTM client instance Enable B Enable the GSTM client at system startup Delete go Delete this GSTM client instance The User description field allows you to
81. M s NTP subsystem can provide NMEA to the digitiser module s clock circuitry In this case the external GPS socket is automatically disconnected The data flow when a GPS receiver is used is illustrated below EEEN ii elie g amp amp a E m a m m E m m mi E E E E a m E ANNEE NENENENEENENNENNEENENENEE GPS Receiver GPS Port EEEREN SSE SESE ERE EEE EB EAM amp NMEA In y Digitiser Clock Od eles ST REREOEROOEE OEE ED te NMEA Out tann n nnn nnn nnnnNnnnn nnnnnnnnnnnnmnnnnnn FEEN EBB ERE EG If required the NTP subsystem can provide NMEA output via a serial port which can then be used to synchronise an additional digitiser This however is optional and no serial port is dedicated to this use To configure the NTP subsystem see section 6 3 on page 64 To configure NMEA as an NTP clock source see section 8 5 on page 93 To configure NMEA output see section 8 6 on page 94 Issue C Operator s Guide 8 4 Using NTP with Authenticated Digitisers Please see the discussion of synchronisation options available with Authenticated Digitisers in the previous section The data flow when NTP is used as the primary clock source is illustrated below SERRE RRR RE RB RRR RRR O eee a DM EAM HOd JOMJON BEEP eeee Digitiser Clock NTP RE Y NMEA Out i HBHRHHHEHHHHHHEHEHEHE BF pL EBBRB RRB BRB RRR REE ee
82. P aliasing table and enter all of these addresses in CIDR format one per line into the table CIDR format requires that the number of network bits be entered after the IP address separated by a slash eg 10 99 0 1 24 Unless you have more than 256 clients you should use 24 network bits When the table is full press the submit button to add extra entries if necessary 3 Return to the GSTM server configuration page For each combination of client and service port that you wish to access fill in a row of the table Listen address should contain the address of the client on the private subnet that you have just allocated Listen service port should contain the service name or port number of the service to which you wish to connect For example to access a web server at a client you would enter http or 80 Target client should contain the username entered when configuring the GSTM client on the target CMG EAM Target service port should contain the same number as the second column Listen service port When the table is full press the submit button to add extra entries if necessary Remote machines wishing to access services on clients via the GSTM server then need only configure a route to the appropriate new address Default port numbers can then be used in applications such as browsers and Scream reducing the amount of configuration required Another strategy would use a single add
83. PS receiver is used the Data Out Port exposed as the DATA connector can be used to provide timing to additional external digitisers Set the Port function to NMEA out NMEA time fixed position output and the Port speed to 4800 Click Submit to save these changes Home Confiquration Serial gt PortC Port C serial configuration Dart C Ore t Port name Fixed Port function NMEA out NMEA time fixed position output Function the port currently supports Baudrate at which the port operates NMEA output settings GCF input settings Go back the configuration of the serial port and click on NMEA output settings You will see this screen Home gt Configuration gt Serial gt PortC gt NMEA output Port C NMEA Settings Latitude 0000 0000 N Device latitude Format 0000 0000 N Longitude 00000 0000 Device longitude Format 00000 0000 E Height oo000 si The device height in meters 5 digits Geoid 000 The difference between sea level and geoid height Invert PPS O Whether the pulse per second signal should be inverted Home Help Expert Submit Generated at 1970 01 02T01 14 00Z by scs 2 9 2 Portions of output copyright c 1970 Guralp Systems Limited November 2010 95 CMG EAM Platinum Firmware 96 Here you can configure the NMEA sentences that will be sent to the digitiser You can specify the location
84. S C N l mseed File name format for creating the output files Hh Mini SEED compressor Mini SEED compressor Default instance v Select which Mini SEED compressor ringbuffer to get data from Home Help Simple Submit Generated at 2010 01 28T14 15 592 by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited The third set of expert mode options shown above apply only to miniSEED recording The Fill threshold text field allows control over the percentage utilisation of the buffer memory which triggers a flush to disk The default is fifty percent The Directory format text field can be used to control the base directory under which all miniSEED files are stored It can be populated with a constant path name component or it can include escape sequences to include variable data such as the stream name these are described in section 10 2 3 on page 115 The File name format text field allows files to be given descriptive names to help identify the data within Escape sequences can be used to include variable data such as the stream name the available escape sequences are described in section 10 2 3 on page 115 A hierarchical directory structure can be created by incorporating forward slash characters into the name these act as directory separators 114 Issue C Operator s Guide The mini SEED compressor drop down menu allows the operator to select which instance of gdi2miniseed is used
85. SB supply and on these units power is always provided to the USB ports Depending on the revision of CMG EAM firmware installed before the upgrade there are three possible commands for powering up the USB ports Note Using the wrong command is completely harmless and merely results in an error message so it is easiest and perfectly safe to simply enter all three commands at the terminal Ignoring any error messages enter these commands at the terminal echo 1 gt sys class gpio USBpowerB level 1Olane L USBA power o l 1oline L USBB power o l November 2010 47 CMG EAM Platinum Firmware 48 Connect the firmware pod If you are upgrading a CMG EAM CMG DAS or CMG DCM the supplied cable CAS DCM 0038 should be attached to the 6 pin mil spec USB connector of the module The firmware pod is then connected to the end of this cable A CMG NAM unit has standard USB sockets and these can be used to directly connect the firmware pod Please note that depending on internal cable layout it may be necessary to connect the firmware pod to a USB socket on the back of the device near the network socket rather than to one on its front panel Once connected it will take a few seconds for the device to be scanned and registered by the operating system You can confirm this by looking for USB mass storage registration entries in the system logtile var log messages Mount the filesystem Once the fir
86. Submit Home Help Generated at 2010 01 27T17 26 552 by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited Mini SEED recording is disabled by default To enable it clear the Disable mini SEED recording check box By default every three hours the current mini SEED file is closed and recording recommences to a new file This interval can be changed using the File period drop down menu The options are 15 or 30 minutes and 1 2 3 4 6 or 12 hours 10 2 2 Configurable parameters in expert mode LOW OLLE LO Libel Vy ibe Li bee WLLL Herds LLULL Use rdisk Use the removable disk support daemon to mount the output tree Output directory Root of the output tree Check file Optional marker file required before flush is allowed Mount command Optional command to prepare the output tree for writing Unmount command Optional command to release the output tree after writing The first set of extra options shown above apply to all recording The rdisk daemon controls the disk s power and heater and is designed to simplify the process of mounting and dismounting the removable disk pack Its user interface is described in detail in section 10 3 1 2 on page 120 Where there are no removable drives as for example in a typical CMG NAM configuration the use of rdisk is unnecessary It may be turned of by clearing the Use rdisk check box Issue C Operator s Guide If rdisk i
87. The connectors are significantly different from other packages The analogue connectors are grouped at one end of the cylinder CAE eae i OM GP UXILiaRy P 190 Issue C Operator s Guide and correspond to similarly labelled connectors on a standard CMG DM24 The illustration shows a four channel unit the seven channel unit has an additional connector for sensor B The digital connectors are arranged at the other end of the cylinder The pin outs for each of these connectors are given in sections 14 3 6 through to 14 3 10 14 2 1 Internal Connections Internally the digitiser module and acquisition module are connected using three serial lines The exact connections depend on the synchronisation mode determined by the service running on Port C of the acquisition module In all cases the GCF data output from the digitiser module is connected to Port A of the acquisition module which should be set to GCF in at 38 400 Baud It is currently possible to set the Baud rate of the digitiser s data output port and of the EAM s Port A independently leading to a loss of data communication between the two modules if the two do not match If you wish to have a higher transfer rate between the two modules both ends must have their Baud rates increased separately November 2010 191 CMG EAM Platinum Firmware The digitiser module also exposes a dedicated console connection which is internally attached to Port B of
88. These may be avoided by telling the receiver that its digitiser is using one of these modes and that rewinding will not work The log messages are harmless so leave this check box clear if unsure The following additional options appear in expert mode Home Configuration gt Serial gt PortA GCF input Port A block recovery protocol settings Disable rewind Disable BRP rewinding for DM24s in adaptive mode etc Transmission delay S Transmission delay in fractional seconds used for NTP Log file Path to log file Leave blank to use syslog Log level Important notices aa i Minimum severity level of messages to record in log Audit log size 256K B medium Debug port TCP port number or service name to which a copy of input is sent GDI multiplexor Default data transport daemon v Select which GDI multiplexor instance to send data to Home Help simple Submit Generated at 2010 01 26T14 40 24Z by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited The Transmission delay text field allows the operator to specify the total delay incurred during packet transmission from the attached digitiser Digitisers can produce special RTSTATUS packets which can be used to synchronise the NTP subsystem and hence the system clock with the digitiser s own GPS synchronised clock see section 6 3 on page 64 Unlike normal NTP peer dialogues there is no transmission delay d
89. a network port which can be specified in the Debug port text field This is an advanced debugging technique which is beyond the scope of this manual In most configurations all data from all inputs is sent to a single multiplexor which then feeds all outputs as described in section 1 3 on page 10 For more complex configurations it is possible to configure multiple multiplexers each with their own set of input and output services In these situations the GDI multiplexer drop down menu can be used to select a multiplexer instance with which to associate this receiver The menu offers a list of currently configured multiplexers 100 Issue C Operator s Guide 9 2 BRP GCF From Network Devices The CMG EAM can receive data from network enabled instruments such as the CMG 6TD and networked digitisers such as the CMG DM24 Data can be received from any number of sources by creating multiple GCF BRP receiver instances To set up a GCF BRP receiver on the CMG EAM select System services from the Configuration All options menu or select the Services short cut from the Configuration Data transfer recording menu To configure a receiver from the command line start gconfig and select System services from the top level menu From the System Services menu select GCF BRP network client The next screen shows a list of all GCF BRP receiver instances that have been configured
90. able the recording of raw GCF data File period 30 minutes Time span held in each output file GCFraw recording is enabled by default To disable it select the Disable GCF recording check box GCF files contain data from all streams and can grow quite large The data are split into manageable chunks on the basis of sample times By default every thirty minutes the current file is closed and recording recommences to a new file This interval can be changed using the File period drop down The options are 15 or 30 minutes and 1 2 3 4 6 or 12 hours Extra options are introduced to this screen by pressing the Expert button These include file name format control for GCF and miniSEED See the following section for details 10 2 1 2 Mini SEED Options For some applications it is more convenient to store the data directly in mini SEED format The third section of the Disk data recording page controls options related to recording in this format If recording in mini SEED format is enabled a GDI Mini SEED compressor November 2010 111 CMG EAM Platinum Firmware 112 convertor is started automatically See section 11 3 on page 138 for more details mini SEED recording These parameters control the recording of data as mini SEED packets Disable mini SEED recording amp Disable recording data as mini SEED packets File period 30 minutes x Time span held in each output file Expert
91. abled with a check box but this is absent from the page for the default instance because the default instance is always enabled The instance name as seen by the client can be set in the first field under Network settings A suitable default is used if this field is left blank If the CMG EAM has multiple network addresses it can be restricted to listen for incoming connections on only one of them by entering its address here If left blank the transmitter will listen on all available instances The default service port for the transmitter is 1565 but an alternative port can be entered here if required Backfill is the process whereby missing data is recovered It can be Issue C Operator s Guide Backfill By default backfill is disabled Be sure to enable it if required and to set up an associated directory cleaner task to manage buffer space Directory var lib gdi link tx default Directory under which backfill files are stored disabled if desired but in most cases you should leave this enabled The remainder of the screen contains a table within which you can configure the GDI link clients to which this transmitter should send data Push destinations Enable at Remote host Remote service port startup Home Help Expert Submit Generated at 1970 01 06T20 06 122 by scs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited For each client you should
92. age handles the network configuration In active client mode or when connecting to an ISP the remote PPP daemon will set these parameters in which case this section can be left blank Issue C Operator s Guide If you are using PPP between say two CMG EAMs one should be designated the client and the other the server The IP addresses and routing parameters for the client should be left blank and those for the server completed as follows If using IPv4 networking the Local IP address field should be populated with an IP address from an otherwise unused reserved class C network address range such as 192 168 123 1 with no CIDR postfix and the Remote IP address field should be populated with an IP address from the same network such as 192 168 123 2 this address is provided to the client at connection initiation If using IPv6 networking the Local IP address IPv6 and Remote IP address IPv6 fields should be used instead If the Default route check box is ticked the PPP daemon will modify the routing table on successful connection setting the remote end of the PPP link as the default gateway The final section of this page handles PPP security Authentication If you are using authentication you may fill out this section Otherwise it can be left untouched ar User identity to supply if requested Sa na Optional secret that matches the user ID Require peer a authentication Requires that the remote peer authentic
93. ain gaps segment is considered Realtime if it has the most recent timestamp of all segments and if the last data for it was received less than 5 minutes ago according to the system be Backfill List of active se Segment boos O7 14TO8 13 002 time 2009 07 10T12 04 2 12 clock Otherwise the segment is considered to Merits 200S 07 10T11 58 202 fRealtime Realime S lt Ba cA Backfill Clock Locked Differential lps status a ee Locked Differential 4005 Last update at 2008 07 10T 12 04 217 Unlocked Clock never locked unable to estimate 2008 07 10T11 58 204 Fix 3D Location 51 361208 N 51 361208 W GPS statusl levation 106 000m Last update at 2008 07 14TO8 13 007 Wo SO8 info from digitiser arenas re unified status packets ags enabled 186 Fie 3D Location 51 361181 N 51 361151 wW elevation 114 000m Last update at 200 07 10T12 04 231Z No SOH info from digitiser Are unified status packets enabled Fie 3D Location 51 361180 N 51 361180 W elevation 115 000m Last update at 2008 07 10T 11 3 202 No SOH info from digitiser Are unified status packets enabled Issue C Operator s Guide The next section of this screen above shows for each active segment detailed information decoded from the packet header The final section below shows the metadata associated with the stream which is derived from the configuration paramete
94. all configuration settings Technical Note All files on the hard drive are left untouched as are any files in the directories home root var and usr local In addition any file with an extension of local will be preserved this is the mechanism by which most configuration settings are safeguarded To perform a standard upgrade using the web interface select Firmware from the Tools menu The following screen is displayed Firmware update Upgrade from server Upgrade this system s firmware over the network using the Guralp rsync server Upgrade Standard upgrade from rsync server Advanced options Display advanced upgrade options Not normally required Generated at 2008 03 247T13 47 342 by firmware cgi 1 0 0 Portions of output copyright c 2008 Guralp Systems ltd Press the upgrade button and watch the screen for any error messages To perform the same upgrade from the command line simply enter the command eam999 upgrade with no arguments watch the screen for any error messages and then reboot to complete the process November 2010 49 CMG EAM Platinum Firmware 50 4 3 2 Upgrade and restore defaults The standard upgrade respects and preserves user configuration settings In some circumstances it may be necessary to overwrite these settings and return all configuration settings to their factory defaults The unit is not completely restored to factory condit
95. ame from the Configuration All options menu To set the system identity from the command line start gconfig and select System identity hostname from the top level menu The following screen is displayed Home Configuration Hostname System identity host name This is the name used to identify the system internally and to other systems in the local network System ID idem105 local net Host name one word Allow DHCP override amp Home Help Expert Submit Generated at 1970 01 02T02 07 192 by scs 2 9 2 Portions of output copyright c 1970 Guralp Systems Limited Use this screen to set the hostname of the CMG EAM If the Allow DHCP Override check box is ticked then when the system requests an IP address from a DHCP server the server response will override the hostname set on this screen November 2010 189 CMG EAM Platinum Firmware 14 2 Authenticated Digitisers G ralp Systems Ltd s authenticated digitisers provide a CMG DM24 and a CMG EAM in a single package a stainless steel or aluminium cylinder with an optional carrying mounting bracket An internal Spyrus PC card provides authentication and digital signing of CD1 1 frames and subframes The system is fitted with variable gain analogue inputs tamper detection lines on all key connectors and an internal USB storage device which is available to external USB host devices such as laptop computers
96. ames Node name The node name used in the block description field Leave blank for hostname Log file Path to log file Leave blank to use syslog Log level Important notices v Minimum severity level of messages to record in log Audit log size 256KiB medium v GCF convertor GCF compressor Default instance Select which GCF convertor instance to send data from Home Help Simple submit Generated at 1970 01 07T15 53 18Z by 6cs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited Early versions of the Scream protocol expected all data to originate from COM ports and the port number was used to identify data sources Version 5 and above of the protocol allow for a much more flexible naming scheme The V4 0 COM names check box can be cleared to enable advanced naming or ticked to retain compatibility with earlier versions of the protocol The protocol includes a description field identifying the source of each block By default this is set to the host name of the originating machine but it can be over ridden by entering a value in the Node name text field It may sometimes be desirable for debugging purposes to separate log messages for this transmitter from the standard system log The Log file text field can be populated with a path name which will then be used for dedicated logging If left blank logging occurs via the standard Linux syslog facility to var log messages The Log l
97. and takes no options adc command module obs lock Lock each of the masses for deployment of an OBS system This sub command takes no options 179 CMG EAM Platinum Firmware 180 adc command module obs centre Centre each of the masses for deployment of an OBS system This sub command takes no options adc command module obs align bowl which Align the levelling bowl of an OBS system The parameter which should be one of 1BOWL for single bowl units Z N S or E W adc command module obs recover Prepare anOBS system for recovery by locking the masses and returning the bowl leveller to its datum position This sub command takes no options The CMG EAM also provides the ability to connect to the terminal of any connected G ralp digitisers in order to configure their operation and control the attached sensors To do this connect to the CMG EAM terminal as in section 2 1 or 2 2 and run the data terminal command eam999 data terminal Select the desired digitiser using the up down arrow keys and Enter to select from the list that is presented This will launch a minicom session see section 14 4 allowing you to communicate with the digitiser terminal For example Welcome to minicom 2 3 rc1 OPTIONS Compiled on Feb 9 2008 16 59 26 Port dev tts 0 Press CTRL A Z for help on special keys LW B68000 CMG 5TD Command Mode 0O blocks in buffer 256 blocks free Guralp Systems Ltd DM FW v 103
98. ansmission itself at the cost of a little extra network overhead 106 Issue C Operator s Guide 10 Recording and Retrieving Data Data can be recorded to internal and external storage in raw GCF format or in miniSEED format Data can be browsed via the web interface or copied to external computers for further processing 10 1 Preparing removable drives When a new removable disk is to be used with a CMG EAM it must first be formatted for use The disk can be formatted by any computer but the CMG EAM also has the capability of formatting the disk itself The CMG EAM accepts disks formatted in either ext3 format which is faster and more reliable but can only be read under Linux systems or VFAT format slower and arguably less reliable but can be read under all operating systems To prepare the disk on a PC simply format it with a single partition containing either of the above file systems it can then be inserted directly into a CMG EAM Note When using removable disks from CMG EAMs and CMG DCMs with PCs you may need to provide a power supply for the disk When using a six circuit powered JEEE1394 FireWire interface the disk can draw its power from the host PC When connected to a four circuit un powered FireWire interface such as Sony i Link external power needs to be applied as described below Power also needs to be supplied when using the USB interface A power supply of between 4 5V and 30V DC s
99. art button for the httpd service To change the password from the command line issue the command passwd You will be prompted twice for the desired new password eam2010 passwd New password Repeat Password changed eam2010 November 2010 25 CMG EAM Platinum Firmware 26 Note There is no way to recover a lost password and it is very awkward although not impossible to regain access to a system without a password Despite much conventional wisdom you may be safer writing the password down and storing it in a physically secure place rather than risk forgetting it If you do lose your password please contact G ralp Systems technical support team for advice Issue C Operator s Guide 3 Configuration System Overview All key configuration tasks can be carried out either from the command line using the gconfig tool or vi the web interface using the Configuration All options menu item Both these methods invoke the same underlying software and present identical navigation and parameter options The web interface presents some additional options Some of these are merely short cuts into the main configuration system while others offer additional monitoring information Configuration of attached digitisers can be carried out using the web interface but not from the CMG EAM s command line although access to the digitiser s command line is available The command line
100. as the data source The menu will offer all configured instances 10 2 3 File name escape sequences Escape sequences are used in the file and directory name fields in the disk recording configuration page They all begin with a character and are used to insert variable data such as the data or stream name into the file or directory name each escape sequence is replaced with the relevant value Any non escape sequence characters are copied verbatim into the name All numbers are decimal and will have leading zeroes added to fill the number of digits The available escape sequences are d 2 digit day of month 01 31 H 2 digit hour in 24 hour clock 00 23 j 3 digit Julian day m 2 digit month 01 12 M 2 digit minute 00 59 y 2 digit year i e without century digits 00 99 Y 4 digit year s 5 char SEED station identifier spaces are removed from all SEED Ids c 3 char SEED channel identifier n 2 char SEED network identifier l 2 char SEED location identifier If the format string ends in a extension without any escape sequences in the extension then this extension will be noted and used in some other locations e g for the top level date directory The default format string is 3Y3j H amp M s c n 1 mseed November 2010 115 CMG EAM Platinum Firmware 116 Slashes will cause subdirectories to be created Using them as date separators will have unintended and usually undesirable conseq
101. ate itself to the local PPP daemon Home Help Expert Submit Enter the User ID and PAP secret given to you by your service provider in the appropriate fields Click Submit to save the changes The standard Linux commands ppp on ppp off ip ping and traceroute are available from the command line for use in controlling and testing PPP connections but it is also possible to configure a watchdog service to monitor a PPP connection and automatically restart it should it fail This is described in the next section November 2010 71 CMG EAM Platinum Firmware 6 6 2 Monitoring a PPP connection PPP connections can be monitored and should they fail for any reason automatically restarted To configure this facility connect to the CMG EAM configuration system via either the web interface or by using gconfig from the command line interface From the All options menu select System services and then under Network Utilities select pppd watchdog PPP link watchdog You can create a number of watchdogs if you are running PPP on several ports This screen allows you to select any of the existing watchdog services for re configuration or to create a new watchdog service Home Confiquration gt Services gt pppd watchdog PPP link watchdog instance selection e Create new service instance Home ME Ey EFL SLUOMIEE Generated at 2010 01 26T11 06 572 by scs 1 1 8 Portions of output copyright c 20
102. ated table rows a check box appears in this column To delete the associated alias tick the check box and submit the form IP aliasing IP aliasing or multihoming can be configured by supplying additional IP addresses in this table Extra routes The following routes are added to the interface after it has come up This is in addition to the default route added above Type see help ip route args a unicast Home Help Simple Submit Generated at 2010 01 22T11 04 452 by cs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited The second table Extra routes is used to add extra network and host routes to allow access to networks other than those connected via the default router specified earlier or to force packets to traverse a particular route despite the default router setting By default the table displays three blank rows but should you need more complete the first three and submit the form it will be redrawn with extra blank rows The columns in the table are Type This drop down menu offers the following choices o unicast This is the normal setting for a host or network route The route entry describes real paths to the destinations specified in the Destination column Issue C Operator s Guide o unreachable these destinations are unreachable Packets are discarded and the ICMP message host unreachable is generated An EHOSTUNREACH error may appear in var log messages o
103. atisfied with the new value the and a keys allow you to move to the previous and next fields respectively When the value is yes enabled or otherwise selected the field is shown with an X in it aa aa DH E When the value is no disabled or otherwise de selected the field is shown as blank Le ioi a od j ah i d bia Lic Enable interface ee i 4 Part 3 2 3 Drop down menus HTL Configuration method lt DHCP Dynamic Host Configuration Protocol MHOD nanti nne To change the setting of a drop down menu field place the cursor on the field using the icy Or Ea keys and activate the menu by using the key Enact on submi Media speed ty Static MTU DHCP Dynamic Host Configuration Pro Configuration Unconfigured but a up Se VLAN trunk fl DHCP options Powered off Extra dheped arguments T November 2010 33 CMG EAM Platinum Firmware While the menu is active you can move between options using the the shown highlighted When the desired option is selected press the l and keys the currently selected option is key again to confirm the choice and de activate the menu 3 2 4 Using forms Most of the configuration forms have on line help available This can be turned on for the current page by using the el button displayed at the bottom of the form The help text will appear in blue interleaved with the form itself Help can also be activated using the 2
104. ator supports an xterm mode you can use your mouse to select menu items input fields and items from drop down menus The scroll wheel is not currently supported so you need to use the keyboard to access second and subsequent pages of multi page forms gconfig displays menus and forms The screen shot above is an example of a menu The following table shows the navigation keys that are available for use with menus Keystroke Used for Cursor to next item Cursor to previous item Select item under cursor Move to the next page of a multi page menu Move to the previous page of a multi page menu Go to the home menu or if there already exit gconfig November 2010 31 CMG EAM Platinum Firmware The four words enclosed in chevrons at the bottom of the above screen shot lt Qu1 t gt lt Help gt lt Expert gt lt Subm t act as push buttons They are always present at the bottom of each gconfig screen although they change slightly according to the context To invoke the action associated with any of them move the cursor to it and press the key In the example all options other than lt auit are disabled and this is indicated by the colour coding If you select an item from a menu which leads to a sub menu the lt ait option changes to lt tome and invoking it will then take you back to the top level menu Selecting a menu item will lead you either to another menu
105. available The menu offers a choice in order of decreasing detail of Debugging information Informational messages Important notices or Warnings The Max NTP error text field controls the accuracy of synchronisation which must be achieved by NTP before the resulting NMEA sentences will will indicate that the GPS is locked Issue C Operator s Guide 9 Receiving Data The modular architecture of Platinum software allows seismic data to be received simultaneously from a number of sources and using a number of protocols as discussed in section 1 3 on page 10 Extra protocols can be implemented by request please contact Guralp Systems Ltd for more details At the time of writing Platinum firmware is shipped with support for CD1 1 G ralp Compressed Format GCF data received over serial ports GCF data received over a network using the Block Recovery Protocol BRP and GCF data forwarded from a copy of Scream The use of CD1 1 is covered in a separate manual MAN EAM 1100 The use of the other receivers is described in this section 9 1 GCF from serial devices Any or all of the serial ports may be configured to receive GCF data from a serially attached digitiser or digital instrument To configure a port for this purpose select Serial ports from the Configuration All options menu or select the Serial ports short cut from the Configuration Data transfer recording menu
106. be changed other than to reflect the System ID Scream can deduce the variable gain settings in use from the GCF block headers and automatically take account of these during calibration operations To change the gain using the web interface select the digitiser from the list in the System setup section of the Configuration menu and scroll down to the Connected devices section The following additional sub section appears Miass allo Centering aaa eee renee Input gain settings Z input gain x1 unity N input gain x1 unity E input gain x1 unity X input gain x1 unity Device info blocks This table is extended to show three additional components when a seven channel digitiser is detected From here the gain can be set individually for each component If the Submit button is clicked the changes will be stored in the digitiser module s configuration but will not take effect until the module is rebooted If an immediate change is required the Submit amp Reboot digitiser button should be used instead 194 Issue C Operator s Guide To change the gain using the command line use the data terminal command to connect to the digitiser as described in section 13 2 2 2 on page 177 and issue one of the following two commands To simultaneously set all channels to the same gain enter the command gain gains where gain is one of 1 2 4 8 16 32 or 64 For
107. ber of seconds between sending watchdog probes Services to start when link fails Command to issue when a good link is established Home Help Expert Submit Generated at 1970 01 06T19 41 502 by scs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited If the GSTM link fails for any reason it is automatically restarted There may be situations where the link cannot be restarted so to prevent almost continuous restart attempts and consequent processor thrashing a time delay is implemented between a link failure and a restart attempt This defaults to thirty seconds but a different value can be configured if desired by entering it in the Exit delay field If a configured link carries no traffic for an extended period the client will send watchdog packets to the server This serves two functions it reassures the client that the link is still usable and it defeats any automatic disconnect on idle mechanisms which may be active on some links The time in seconds between such watchdog probes can be configured by entering a value in the Watchdog interval field If the watchdog packets do not elicit a response from the server the link is assumed to have failed and optionally an additional service can be started in response This will typically be another GSTM client in order to establish a back up link The GSTM client to be started should be identified here by its service descriptor which takes the
108. bmit o Check to enact changes when page is submitted Uncheck to enact on reboot Configuration DHCP Dynamic Host Configuration Protocol az method Determines how the interface parameters are discovered and set The first field Device is not editable It displays the name of the network interface being configured The MAC address field is also not editable It shows the Media Access Control address of the adapter s hardware It is often useful to know this when configuring DHCP servers by binding an IP address to a particular MAC address the DHCP administrator can ensure that the device retains the same IP address across reboots The Description field allows the operator to modify the description of this interface in configuration dialogues and error messages This is of limited value when there is only a single interface but for example when a CMG NAM has multiple interfaces it may be useful to rename them in order to reflect their logical function rather than their physical position 56 Issue C Operator s Guide The Enable interface check box can be ticked in order to enable the interface or cleared in order to disable it No other configuration settings are changed when the interface is disabled allowing use of the interface to be suspended without deleting the configuration The Startup enable check box controls whether the interface is enabled automatically when the unit boots The Enact on submit check box contro
109. d If you don t have the filename selection window enabled in the File transfer protocols menu you ll just have to write the filename s in a dialog window If you have the selection window enabled a window will pop up showing the filenames in your upload directory You can tag and untag filenames by pressing spacebar and move the cursor up and down with the cursor keys or j k The selected filenames are shown highlighted Directory names are shown within brackets and you can move up or down in the directory tree by pressing the spacebar twice Finally send the files by pressing ENTER or quit by pressing ESC Choose Terminal emulation Ansi color or vt100 You can also Change the backspace key here turn the status line on or off and define delay in milliseconds after each newline if you need that Toggle line wrap on off Exit minicom reset modem If macros changed and were not saved you will have a chance to do so Paste a file Reads a file and sends its contents just as if it would be typed in Pop up the help screen November 2010 213 CMG EAM Platinum Firmware 15 Revision history 2008 03 16 A New document 2009 06 16 B Major re write for GDI First official release 2010 02 10 C Complete re ordering and re write Additional material for authenticated digitisers Issue C
110. d Seismograph Networks FDSN MiniSEED data is a stripped down version of SEED data which only contains waveform data without the station and channel metadata that are included in full SEED Incoming data in any format other than CD1 1 is converted first into GDI format In order to transmit SEEDlink data or record it to disk it must be converted into miniSEED format and this is done by the gdi2miniseed module known as the GDI Mini SEED compressor 11 3 1 The GDI Mini SEED compressor A default instance of the GDI Mini SEED compressor is provided Further instances can be created if required for complex implementations Although the default instance is not set to start automatically it is a necessary prerequisite for both SEEDlink transmission and recording so it will be started as a dependant service when required 138 Issue C Operator s Guide To configure a GDI Mini SEED compressor from the web interface select System services from the Configuration All options menu or select the Services short cut from the Data transfer recording menu To configure a GDI Mini SEED compressor from the command line start gconfig and select System services from the top level menu Now select gdi2miniseed Mini SEED compressor from the System Services menu The next screen shows a list of all Mini SEED compressor instances that have been configured Home gt Confiquration gt Services gt gdi
111. d host option is usually left blank If specified it is the name or IP address on which this server socket will listen For example if you specify localhost here then this socket will only listen for incoming connections on the loopback address and not on the external Ethernet port Leave it blank to listen to all addresses The Bind service option must be specified It is the TCP port number 1 65535 or service name such as tcpserial for the socket This can be anything you choose although we recommend that you use the names tcpserial tcpseriall tcpserial2 and so on through to tcpseriall15 which are pre defined to correspond to port numbers 10002 10003 through to 10017 The mapping from port names to port numbers is configured by the conventional Linux file etc services which can be edited from the command line if required If desired you can configure a list of addresses from which to accept connections If no addresses are configured then all incoming addresses will be accepted Otherwise connections will only be accepted if they match an entry in the table with its Reject box unticked Entries are matched in order as soon as a match is made the connection is accepted or rejected and no further processing is done The IP addresses fields can each specify a host name an IP address or an IP address range given in CIDR format For example to accept connections from LAN addresses you can add th
112. de Windows users should follow the same procedure to log in power up and mount the file system At this point rather than suspending the ssh shell they can connect with WinSCP and navigate to the media directory The recorded files will then be displayed and can be dragged and dropped to appropriate locations on the PC 3 2009336 pcfraw root 51 187 130 165 WinSCP Local Mark Files Commands Session Options Remote Help e ai a SS lt 4 Ger E fyi dh Gi CS Default Bm g h 9 2009336 gcrraw C SGCF Downloads Ei S040 F508 i 2009336 gcfraw G 2009337 gctraw G 2009338 gctraw 2009339 gctraw i 2009340 gctraw Size Changed Rights O1f01 2010 00 00 raxr xr x o2 12 2009 F X root Fook CF X rook 1 623 744 02122009 EE xE 1 955 840 defi2f2o09 PrP OB of OB inOofd 5 007 KB of 61 665 KB in 3 of 29 a F2 Rename F4 Edit EX F5 Copy L F Move F F7 Create Directory 5X F8 Delete ff F9 Properties JF F10 Quit SEF T 0 03 59 When the transfer is complete return to the ssh session and power down the disks with the exit command or by keying D Using rsync is very similar simply replace the invocation of scp in the above instructions with an appropriate rsync command For Linux users the simplest usage is me mypc dl rsync avz root 51 187 130 165 media This will copy all files from all removable drives to the current directory on the invoking computer Only the differences are transferred
113. dress of the gateway router for access to other networks or to the Internet This field must be set correctly before internet firmware upgrades can be used The ip route arguments field can be used to modify the invocation of the ip route add command in order to e g set the route metric The options that can be set here are mostly highly technical and should rarely be required Please see http linux die net man 8 ip for more information Two tables appear at the the bottom of the form when in expert mode the IP aliasing table and the Extra routes table These are shown in the screen shot below The IP aliasing table is used to add extra addresses to this interface a practice known as multi homing By default the table displays three blank rows but should you need more complete the first three and submit the form it will be redrawn with extra blank rows The columns in the table are IP and CIDR The address should be entered in CIDR format where the address is followed by a slash and then the number of bits defining the netmask e g 192 168 0 1 24 for IPV4 or 2001 db8 32 for IPV6 November 2010 59 CMG EAM Platinum Firmware 60 Broadcast Enter the broadcast address to be associated with this address on the interface ip addr arguments This field can be used to tune the operation of the network interface For settings that can be used here please see http linux die net man 8 ip Delete For popul
114. e The GSMS server need not send all data from all channels to its clients it is possible to select which channels are transmitted Select one of the three different transmission modes Automatic all channels are transmitted and named automatically Semi automatic all channels are transmitted and names can be mapped using a configuration table e Manual only channels named in the configuration table are transmitted The relevant part of the screen shown truncated looks like this Issue C Operator s Guide Channels Select which channels to transmit See help for more details Naming mode Automatic all channels are transmitted and named automatically w Select how channels are selected for transmission and named System name Output channel name SEED LW DDDDE4 DDDD HHE LW 04 g LW EEEEZ4 EEEE HHZ LW 04 E Home Help Expert Submit Generated at 1970 01 07T18 04 332 by scs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited The software will attempt to populate the table based on incoming data streams so it is a good idea to configure all input sources and run the system for a few minutes before completing this table 11 4 2 Configurable parameters in expert mode The following additional configuration parameters are available by clicking the Expert button at the bottom of the form Expert options Log file Path to log file Leave blank to use
115. e gt Configuration gt Serial PortA Port A serial configuration Name Port Port name Fixed Port function GCF in Inbound GCF data gathering wel Function the port currently supports A Port speed 38400 w Baudrate at which the port operates NMEA output settings GCF input settings GCF output settings e PPP network configuration e TCP serial converter settings e Modbus device settings Home Help Expert Submit Generated at 2010 01 26T14 22 332 by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited Select GCF in Inbound GCF data gathering from the Port function drop down menu set the appropriate Baud rate using the Port speed drop down menu and then click on the GCF input settings link Home gt Configuration gt Serial gt PortA gt GCF input Port A block recovery protocol settings Disable rewind O Disable BRP rewinding for DM24s in adaptive mode etc Home Help Expert Submit Generated at 2010 01 26T14 27 582 by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited Issue C Operator s Guide In standard mode the only option available is to disable BRP rewinding In some modes some digitisers will not allow BRP to rewind to earlier blocks In these modes missed packets will instead be sent at a later time However the log file will accumulate many entries about sending NAKs and giving up
116. e C Operator s Guide Where security is a concern for example where systems may be left connected to the internet for any significant period you may wish to change the password In this case you should also use secure HTTP to access the web interface rather than the more common http To do this prefix the URL to the device with the https protocol specifier rather than http For example if you can access your system as http 192 168 0 1 you can also use https 192 168 0 1 and this will prevent your new password from being retrieved by eavesdroppers There is much information available on line for choosing a strong password for example http tinyurl com strongpws Selecting Passwords from the Tools menu takes you to a screen from which you can change the password used for both command line access and for the web interface Home Tools Passwords Password change Select user root w po Current password fr New password Confirm Submit changes Generated at 2010 02 04T13 55 35Z by passwd cgi from Pt users 1 6 4 Portions of output copyright cJ2010 Guralp Systems Ltd Currently the only user configured on a CMG EAM is root The password is changed immediately but the built in web server can continue to use the old password for some time after a change If this is a problem the web service can be restarted from the Services page see section 13 2 4 on page 181 by clicking the Rest
117. e address If you want to sent the data to multiple clients set up the CMG EAM as a TCP server and the remote machines as clients that connect to it Network parameters Protocol TCP server accepting multiple clients w Set the protocol used for transmission Hostname Hostname or IP address to use 9999 Service or port number to use Maximum delay before data is transmitted seconds Early transmit size 450 Packets exceeding this size may be transmitted early UTC offset 9 hours JST Hour offset from UTC to apply to timestamps To configure the sender as a TCP server select TCP server accepting multiple clients from the Protocol drop down list To use a specific IP address to listen for requests from clients set this in the Hostname box By default it will listen on all interfaces Set the port that you want the server to listen on in the Service box 152 Issue C Operator s Guide If you only want to send the data to a single UDP server select UDP datagrams sent to specified address from the Protocol drop down list Configure the remote machine s hostname or IP address in the Hostname box and set the port number that the remote machine will listen on in the Service box The WIN sender will buffer up data before it is sent so that outgoing packets have a second s worth of data from all channels If no data is received from some channels within a certain time limit the data from other channels w
118. e addresses 10 0 0 0 8 anything from 10 0 0 0 to 10 255 255 255 172 16 0 0 12 anything from 172 16 0 0 to 172 31 255 255 192 168 0 0 16 anything from 192 168 0 0 to 192 168 255 255 and 76 Issue C Operator s Guide 127 0 0 1 loopback address 6 7 2 Simple client mode This mode of operation is similar to simple server except that the CMG EAM establishes an outgoing TCP client connection rather than listening on a socket It writes raw data from the serial port to the remote server and writes raw data from the remote server to the serial port It does not support the querying or setting of the serial port hardware control lines In this mode only a single option needs to be provided the contact details for the remote server IP address and port The format of this option is host service The host may be a hostname or an IP address The service may be a TCP port number or a service name from etc services November 2010 77 CMG EAM Platinum Firmware 7 Digitiser Configuration 7 1 Configuring Digitisers using the web interface 78 The configuration interface can be used to configure the digitiser module in a CMG DAS or any serially attached G ralp digitiser such as CMG DM24 or CMG CD24 The internal digitiser module in a CMG DAS is effectively serially connected so both internal and external digitisers are handled identically The System Setup sub menu of the Configuration menu
119. e behaviour of gdi record there are a number of configurable options November 2010 109 CMG EAM Platinum Firmware 10 2 1 Configurable parameters in standard mode The following configuration options are available from the simple dialogue e Disable all recording This check box when ticked unconditionally disables all recording e Recycle files If this check box is ticked gdi record will remove the oldest files from external storage to make room for new data when the external storage becomes full If this option is cleared then when the storage becomes full the module will check periodically for free space and start writing again when it can e In order to reduce power consumption gdi record does not write continuously to the hard drive Data are buffered in flash memory and at a configurable interval these data are checked to see which complete files can be written to disk The Check output flush option controls how often this happens The options are every minute every five fifteen or thirty minutes and every hour e The Recording destination drop down menu controls where data are stored The options may include one or more of e Removable USB disk in internal tray this is the default setting for CMG EAMs and CMG DCMs Data are written to the removable USB FireWire disk and can be read via the web interface the command line or by removing the disk and attaching it to an external USB or FireWire ho
120. e eee e eee neo Incoming data from an external GPS receiver is available to both the digitiser and acquisition modules Both the digitiser s GPS input and Port C of the acquisition module must run at 4 800 Baud This should never be changed 192 Issue C Operator s Guide If an external GPS receiver is used but it is not required to use its data in the EAM the service on Port C can be set to none If use of a GPS receiver is impractical but internet derived NTP synchronisation is available this can be used as the clock source for both the digitiser module and the acquisition module By setting the service on Port C to NMEA out the following connections are enabled E o o o o o o i o E a UMBBREEREEEF GPS 4 Port C NMEA Out NI Sd Port A Data ae eee a iO Q m G m a o D s E E E E E E a E E E E E E Zee ee eee ee oe Ae eee eee neo Both the digitiser s GPS input and Port C of the acquisition module must run at 4 800 Baud This should never be changed Note that in this mode the external GPS socket is disconnected it cannot be used as an output for additional digitisers 14 2 2 Variable Gain Inputs The authenticated digitiser is fitted with a programmable gain differential input amplifier which can be set to x1 x2 x4 X8 X16 x32 or X64 gain operation The gain can be set individually for each input channel either
121. e file etc build version which can be read with the command eam2243 cat etc build version Overall but Ld vers ton BUILD LABEL platinum stable BUILD VERS LON 3S 012 eam2243 The version in this case can be seen to be 3012 4 2 Upgrade Methods In order to be upgraded the unit needs access to the latest version of the firmware If an internet connection is available G ralp Systems Ltd s software repository can be used This is described in section 4 2 1 If a number of units share a common network but that network is not connected to the internet you can make you own copy of the software repository on a PC or laptop which can be connected the network either permanently or temporarily and use that as the upgrade source This is described in section 4 2 2 If one or more units to be upgraded but internet access is not available the new firmware can be copied to a USB storage device such as a memory stick and the upgrade performed from that This is described in section 4 2 3 4 2 1 Upgrading via the internet In order to upgrade over the internet from G ralp Systems Ltd s software repository the unit must have its networking properly configured In particular a DNS Domain Name Service server and a default gateway or defined route must both be configured It is advisable to check these before proceeding To check for correct configuration of both of these items issue the command ping c3 rsy
122. e most efficient means of exchanging data between two systems running Platinum firmware GDI is the native data format of the central data multiplexer the gdi base module and GDI link allows highly efficient low latency data exchange between two such multiplexers without the overhead of any additional protocol conversion State of health information is attached to samples before transmission GDI links have transmitters which send data and receivers which receive it These terms do not refer to the direction of initiation of the network connection a receiver can initiate a connection to a transmitter and vice versa A single GDI link receiver can accept data from multiple transmitters and a single transmitter can send data to multiple receivers allowing maximum flexibility in configuring seismic networks 12 1 1 The GDI link transmitter To configure a GDI link transmitter connect to the CMG EAM configuration system via either the web interface select All options or by using gconfig from the command line interface From the main screen select services then GDI link transmitter The next screen shows a list of all GDI link transmitter instances that have been configured on the CMG EAM Home Confiquration Services gt qdi link tx GDI link transmitter instance selection Select the GDI link transmitter instance you wish to configure e System gdi link transmitter starts automatically Crea
123. e of the digitiser and is described at the end of this section The high level interface is provided by the adc command command which takes a number of sub commands as described below Each command must be directed to a specific sensor and this must be specified as the first argument When invoked with no arguments or with the help argument a list of available targets referred to as modules is displayed eam2010 adc command help usage adc command lt module gt lt command gt options Available ADC modules C914 3K55 C914 3K56 This is followed by a list of available sub commands In the descriptions below module should be replaced by a name from the list provided by invoking adc command help adc command module mass centre Perform a centring operation on the sensor s masses This sub command takes no options adc command module mass query Display the current mass positions of the sensor This sub command takes no options The masses are displayed in counts every second for six seconds adc command module mass lock Lock the masses for transportation This sub command takes no options adc command module mass unlock Unlock the masses for deployment This sub command takes no options adc command module calib sine arguments November 2010 177 CMG EAM Platinum Firmware 178 Perform a sine wave calibration according to the specified arguments which are given as a spac
124. e separated list of key value pairs component ALL z N S E W specify the component s to be calibrated duration m specify the duration in minutes where m is an integer value For accurate results the duration should be significantly longer than the response time of the instrument amplitude a specify the amplitude where a is the integer percentage of the full output of the cailbration signal generator This can normally be given as 100 but should be reduced if clipping is noticed freq n specify the frequency in integer Hertz or period in integer seconds of the calibration signal according to the setting of freq or period Hz sec specifies whether the value associated with freq is interpreted as Hertz or seconds adc command module calib step arguments Perform a step calibration according to the specified arguments which are given as a space separated list of key value pairs component ALL z N S E W specify the component s to be calibrated duration m specify the duration in minutes where m is an integer value The calibration signal will first go negative for this duration then back to zero for the same duration then go positive for this duration then return to zero again for the same duration For accurate results the duration should be significantly longer than the response time of the instrument amplitude a specify the amplitude where a is the integer percenta
125. eceiver qdi link rx receives samples in the native protocol of the Platinum software suite called Guralp Data Interconnect This is a low latency real time transmission protocol which sends encoded state of health with samples System gdi link receiver eee gdi link receiver description User label for this receiver module Enable o Enable the receiver at system startup Network settings Client name Used to identify this receiver to other transmitters Leave empty for default Local IP address IP address or host name to listen on Leave empty for default Local port service Service name or TCP port number to listen on Leave empty for default Backfill is the process whereby missing data is recovered It can be disabled if desired but in most cases you should leave this enabled Backfill Directory var lib gdi link rx default Directory under which backfill state files are stored The remainder of the screen contains a table within which you can configure the GDI link servers to which this receiver should listen November 2010 159 CMG EAM Platinum Firmware 160 Servers No filt Nofi No filte No filt No filt Home i Help Expert Submit Generated at 1970 01 06T20 18 152 by scs 2 0 9 Portions of output copyright c 1970 Systems Limited ble up No filter receive everything pmm D071 13292P a No filter receive everything C IC
126. ect which GDI multiplexor instance to compress data from Home Help Simple Submit Generated at 1970 01 06T03 02 022 by scs 2 9 3 Portions of output copyright c 1970 Guralp Systems Limited The Database directory field can be used to control the location of the ring buffer and associated files In most configurations the default location is adequate but if for example a very large ring buffer is desired and the optional extra flash memory module is fitted it may be desirable to use the extra memory for this purpose To do this enter into this field the path to a unique directory under media flash module It may sometimes be desirable for debugging purposes to separate log messages for this compressor from the standard system log The Log file text field can be populated with a path name which will then be used for dedicated logging If left blank logging occurs via the standard Linux syslog facility to var log messages The Log level drop down menu controls the level of detail present in log messages whether to syslog or to a dedicated log file Not all of the standard syslog logging levels are available The menu offers a choice in order of decreasing detail of November 2010 141 CMG EAM Platinum Firmware Debugging information Informational messages Important notices or Warnings In most configurations all data for all compressors are taken from a single multiplexor as described in section 1 3 on page 10 Fo
127. ed You can search for text in the buffer with case sensitive or Fim gs case insensitive N will find the next occurrence of the string will enter citation mode A text cursor appears and you specify the start line by hitting key Then scroll back mode will finish and the contents with prefix gt will be sent Clears the screen Toggle local echo on and off A break signal is sent Toggle the type of escape sequence that the cursor keys send between normal and applications mode See also the comment about the status line below Jump to a shell On return the whole screen will be redrawn Clears the screen runs kermit and redraws the screen upon return Turn Capture file on off If turned on all output sent to the screen will be captured in the file too Configure minicom Puts you in the configuration menu Communication Parameters Allows you to change the bps rate parity and number of bits Exit minicom without resetting the modem If macros changed and were not saved you will have a chance to do so Receive files Choose from various protocols external If you have the filename selection window and the prompt for download directory enabled you ll get a selection window for choosing the directory for downloading Otherwise the download directory defined in the Filenames and paths menu will be used Issue C Operator s Guide Send files Choose the protocol like you do with the receive comman
128. ed as success Generated at 2010 01 28T17 26 48Z by rdisk cgi Portions of output copyright c 2010 Guralp Systems Ltd Once the flush process has completed as shown above return to the main disk menu by clicking on Removable disk on the Tools menu You can now click the View filesystems button This will power up any connected disks and after a short delay present a list of attached disks and their details filesystem free space etc 118 Issue C Operator s Guide Home gt Tools gt Removable disk gt Filesystems Removable disk View filesystem details Filesystem details UUID Type Size Free space Earliest entry Used byiIndex of files 50AD F5D8 vfat 37 2GiB 34 0GiB 91 4 2009336 gcfraw View files __ Generated at 1970 01 03T15 34 162 by rdisk cgi Portions of output copyright c 1970 Guralp Systems Ltd Clicking on the View Files buttons takes you to the Removable disk file index screen which displays folders and files Sub directories folders have a Follow button next to them and files have a Download button The first screen typically looks like this Home Tools Removable disk Filesystems 50AD F5D8 Removable disk file index Filesystem UUID 50AD F508 Path Choose a subdirectory to follow or a file to download File or directory name File size Follow or download 2009336 qcfraw Follow 2009337
129. ed automatically at boot time If this check box is left clear the MTA can still be started manually from the services menu see section 13 2 4 on page 181 Most email configurations use a smart host to route mail This can greatly simplify the administration only one node on a network the smart host needs to be configured to know about any intricacies of the system and all other machines need only know the location of the smart host If the Smart host text field is populated with the name or address of of such a host all mail is sent directly to that host for further routing If this field is left blank the MTA will attempt to use DNS to discover the mail host s for any given address and then deliver mail directly The optional Mail host identity text field specifies the hostname from which outgoing emails should appear to originate If this field is left blank the real hostname is used The Postmaster alias text field allows you to specify the address to which all internally generated mail should be sent This should be set to the email address of the CMG EAM s administrator 6 5 Configuring the SSH Server The CMG EAM has an ssh server running on its Ethernet port which allows remote terminal access November 2010 67 CMG EAM Platinum Firmware The ssh server sshd can not currently be configured using gconfig although it can be configured via the web interface If web access is unavailable it is possible to confi
130. ed by any other service on this system The next section of the form looks like this Push destinations It is possible to push Scream packets over UDP to several destinations without needing a client to send a GCFSEND request Additionally it is possible to broadcast to a network although the broadcast option is turned off by default to avoid misconfiguration Enable 5 broadcast Check this to enable pushing Scream packets to network broadcast addresses The scream server is capable of both responding to data requests from clients PULL mode and of sending data uninvited to remote destinations PUSH mode The table above is used to list any PUSH mode clients For each a Host must be specified as either an IP address or hostname and a Port must be given as either a service number or name Existing entries can be deleted by ticking the associated Delete check box and submitting the form By default the server will not send to network broadcast addreses This behaviour can be enabled by ticking the Enable broadcast check box The Output filtering section allows the operator to control which data are transmitted selecting by block type sample rate or channel name November 2010 135 CMG EAM Platinum Firmware 136 Output filtering This section allows you to choose whether to transmit all GCF blocks as they are received from the GCF convertor or only a subset Max sample rate samples per second If fi
131. ellite modem allowing remote connectivity 1 4 2 Protocol Converter The CMG EAM can be deployed as a protocol converter the wide variety of output formats and connectivity options make it ideal for November 2010 11 CMG EAM Platinum Firmware this application In the illustration above a digital instrument s GCF output is retransmitted as SEEDLink data over Ethernet SEEDLink over Ethernet power CMG EAM 1 4 3 Array Concentrator The CMG EAM is well suited to combining the data from a number of instruments in an array and retransmitting them over a single link serial or network If the output link is over a network all three serial ports of a standard CMG EAM including the DATA OUT port are available for connection to digitisers or digital instruments allowing up to eighteen channels to be aggregated An arbitrary number of CMG EAMs may be chained together allowing for even more extensive arrangements Ethernet output CMG DM24 CMG EAM 12 Issue C Operator s Guide 1 4 4 Resilient Networking Platinum firmware includes a number of ways to implement network resilience For example the GSTM protocol for communication between Platinum units allows data to be routed over a low cost but unreliable DSL network with automatic switch over to a higher cost satellite link only when the DSL network is unavailable The failed link is regularly retried and when communication is re establ
132. en copy data bidirectionally between the serial port and the network port i CMG EAM Serial Port TOP client Serial E F TCPSerial i i converter i I E GQm meee ee eee eee ee ee SL To configure the converter select Serial Ports in the configuration menu then choose the required port Set the function to tcp serial converter select the baud rate and save the settings You can then use the TCP serial converter settings button at the bottom of the page to configure the converter The converter s configuration page allows you to choose the mode at the top Operation mode The other options on the page are only required in certain modes see below for which modes require which options 6 7 1 Simple server mode In Simple server mode the converter opens the serial port and creates a TCP server socket Whenever a client connects to the socket the converter reads raw data from the serial port and writes it to the client and reads raw data from the client and writes it to the serial port The November 2010 75 CMG EAM Platinum Firmware serial port hardware control lines cannot be read or altered in this mode Simple server mode has two relevant options the list of addresses to listen to and an optional list of addresses to filter The server can listen on multiple simultaneous local ports and addresses although only one client can be active at a time The Bin
133. erating clock signals wherever possible they are the most accurate time sources available for all practical purposes Where GPS receivers cannot be used but an internet connection is available Network Time Protocol NTP can produce acceptable results Platinum firmware can produce NTP synchronised NMEA output for use with GPS capable devices CMG EAMs CMG DCMs and CMG NAMs have an internal clock which is used to time stamp log file entries but not data samples This lock is managed by the NTP subsystem CMG DAS units and Authenticated Digitisers have two clocks the digitiser clock and the EAM DCM clock the former is used to time stamp data samples and the latter to time stamp log file entries The EAM DCM clock is also managed by NTP The two clocks can be synchronised in a number of ways 8 1 RTSTATUS packets Where a CMG EAM or CMG DCM is used with an external GPS synchronised GSL digitiser the digitiser can emit special synchronisation packets called RTSTATUS packets These are transmitted along the same link as the data packets Platinum units can use these as a time source for NTP see section 6 3 on page 64 for more details GPS Receiver Digitiser Clock NTP RISTATUS i Packets RISTATUS In S DATA Packets 90 Issue C Data cable Operator s Guide Note RTSTATUS packets are available with MkII DM24 units Earlier units such as MkIIs are not capable of generating these packets
134. es per packet and limiting packets to twenty records guarantees reasonably low latency On 8 bit 250 records max this setting optimises line utilisation allowing maximum compression and minimising the number of packet headers transmitted Off 32 bit 20 samples max this setting disables compression forcing samples to be transmitted as 32 bit differences Latency is reduced by limiting the number of records to twenty per packet If the system is connected to a digitiser that is using a different combination of compression control and sample limits it will appear as an extra item in the drop down menu labelled Custom For example Custom 16 bit 40 samples max would appear if these settings had been manually configured from say the digitiser s command line The Decimator outputs section of the screen shows and controls which digitiser taps have been configured to output data both in continuous and triggered states Decimator outputs lg aju Ci jo 7 triggered F IE 9 Taps 3 25sps continuous alajo Delete triggered _ iggered elele Da m View trigger settings Add new output Tap 1 250sps The output column is extended when using 7 channel digitisers Extra taps can be added with the Add new output button The rates available at each tap are dependant on the rate selected at the previous tap the base sampling rate is 2000 samples per second
135. evel drop down menu controls the level of detail present in log messages whether to syslog or to a dedicated log file Not all of the standard syslog logging levels are available The menu offers a choice in order of decreasing detail of Debugging information November 2010 137 CMG EAM Platinum Firmware Informational messages Important notices or Warnings The GCF Scream sender keeps its own audit log independent from the system log The contents of this log are available using the GCF Audit Log viewer facility as described in section 13 3 2 on page 182 The amount of data retained is controlled by the Audit log size drop down menu whose choices are 64Kib small 256Kib medium 2MiB large and 16MiB huge In most configurations all data for all transmitters is taken from a single multiplexor as described in section 1 3 on page 10 For more complex configurations it is possible to configure multiple multiplexers each with their own set of input and output services In these situations the GDI multiplexer drop down menu can be used to select a multiplexer instance with which to associate this transmitter The menu offers a list of currently configured multiplexers 11 3 SEEDIink The Standard for the Exchange of Earthquake Data SEED is an international standard format for the exchange of digital seismological data developed by the USGS and adopted as a standard by the Federation of Digital Broad Ban
136. example to select x8 gain on all channels enter the command 8 gains The digitiser must be rebooted before the change will take effect To set the gain for an individual channel enter the command channel gain gain where channel is one of 0 vertical 1 North South 2 East West or 3 auxiliary calibration On seven channel digitisers this parameter can also be one of 4 vertical 5 North South or 6 East West referring to the components from the second instrument gain is one of 1 2 4 8 16 32 or 64 For example to select X16 gain on just the vertical channel enter the command O 16 gains The digitiser must be rebooted before the change will take effect November 2010 195 CMG EAM Platinum Firmware Note Software developers working with GCF packets can decode the selected gain setting from the GCF header as follows If the most significant bit of the System ID is zero variable gain is not used If the most significant two bits of the System ID are 10 or 11 the next three bits encode the gain using this code Bits 2 3 amp 4 Gain 000 not fitted 001 x1 010 x2 011 x4 100 x8 101 x16 110 x32 111 x64 14 2 3 USB operations The Authenticated Digitiser can behave as a USB storage device via the GPIO connector or as a USB host via the USB connector 14 2 3 1 USB device mode The Authenticated Digitiser is fitted with an internal Flash memory device
137. for a new session to start You should log in as root which is the standard Unix superuser The password is set to rootme when shipped from the factory To log in type root and press enter When prompted for the password type rootme nothing will be echoed while you are typing and press lt enter gt You will then be presented with a shell prompt which will accept commands eam999 login root Password rootme eam999 The output may vary slightly due to the configuration of the unit In particular the hostname eam999 in this example will be different Some applications on the CMG EAM use a system called ncurses which allows graphical interfaces to be implemented on text only terminals This requires the applications to know the type of terminal 16 Issue C Operator s Guide from which they are being accessed The terminal type is stored in an environment variable called TERM which is queried with the command eam999 echo STERM vt1l00 eam999 note the use of the sign when accessing the value of this variable and set with the command eam999 export TERM vt1l00 No spaces should be used around the sign The CMG EAM is aware of around thirty different terminal types and uses the terminfo system to support them so you can add your own types if you need Files describing each terminal type are stored under the directory folder usr share terminfo in sub directories
138. form 3 3 Configuration Management The CMG EAM has a comprehensive configuration management system that allows both complete configurations and individual classes of configuration information such as data processing and networking to be saved individually and merged during restoration This feature can be very useful when multiple CMG EAMs are to be configured for a project In a typical array with a central communications hub arrangement only two data processing configurations need be created one for the hub and one for an array element The latter can then be copied from CMG EAM to CMG EAM to avoid having to configure each unit individually Network configurations need be created for each element of the array and for the hub but these can all be created and stored on a single CMG EAM If the complete set of stored configurations is then copied to each machine and to any hot spares then every CMG EAM becomes rapidly interchangeable all that is required to deploy a unit is to restore the correct data processing configuration hub or element and then restore the appropriate network configuration Configuration files can also be backed up and stored on different sites to provide a disaster management resource 36 Issue C Operator s Guide 3 3 1 Saving a configuration From the Configuration section of the main menu select Save Restore The following screen appears Configuration management Restore ID
139. g both data latency and line utilisation GCF packets contain a 32 bit starting value and then a series of differences between consecutive samples When the input signal is relatively quiet these differences can often be expressed as 8 bit quantities When the input signal includes large transients the differences are transmitted as 32 bit quantities For intermediate level signals 16 bit values can be used This is known as compression as it can compress four samples into the space otherwise occupied by a single value The digitiser can be configured to limit the amount of compression used The difference values are stored in records which are four bytes long and so may contain four 8 bit differences two 16 bit differences or one 32 bit difference A GCF packet can contain up to 250 records so the maximum number of samples in a packet is between 250 when 32 bit differences are used and 1000 for eight bit differences Packets must start on whole second boundaries so they are not always filled In addition it is possible to configure the digitiser to further restrict the number of records in a packet in order to decrease latency The drop down menu controls both of these settings and usually offers the following choices 80 Issue C Operator s Guide Recommended 8 bit 20 records max this setting represents the best compromise for throughput allowing 8 bit compression potentially increases the number of sampl
140. g supplied to the CMG EAM and also to devices connected to the CMG EAM ports such as digitisers A program on the CMG EAM runs constantly in the background and monitors the sensors if they are fitted The same program can monitor the anti tampering lines where fitted The Digital I O item on the Control menu brings up the following screen the contents of which may vary with your hardware configuration Home Control Digital I O I O line status VO line status and control Output Output high on Last changed never voltage a Bus Voltage V n current 0 248 Set output low switch off View details settings Set to input Data Out Data Out power Output Output high on Last changed never a A View details Settings rm cf oo i fa co The top if this table on this page shows the real time voltage current and power for each monitored line including each sensor equipped November 2010 171 CMG EAM Platinum Firmware 172 port of the system There are also buttons to turn the power to the port on and off Clicking the View details settings button produces the following screen shown here in parts Home Control gt Digital I O Details Data_Out Line details Data Out power Line ID Data Out I O control Impedance Low output Pin level Output high on Last transition Cer r ririt SEL LO INDU
141. g the Heartbeat interval text field When the digitiser is in the adaptive or FIFO transmission modes special action is taken if data cannot be transmitted The acknowledgement delay field controls how long the digitiser waits for an acknowledgement packet before assuming that the link has failed This should be set to an integer number of milliseconds Issue C Operator s Guide The Ports section of the web page allows control of the baud rates of the digitiser s serial ports Ports port Data out 115700 Changing the data out rate will require the same change to be made in your communications software GPS 38400 This setting is only used for non GPS operations If a GPS device is enabled the port will be set to the GPS rate of 4800 baud regardless of this setting For a stand alone digitiser or digital instrument the GPS and Data in ports are exposed on external connectors The Data out port is assumed to be connected to the CMG EAM CMG DCM or CMG NAM and the rate set here must match that set for the appropriate serial port see section 9 1 on page 97 for details of reconfiguring serial ports If a stand alone digitiser or digital instrument is fitted with a Lantronix Ethernet or WiFi option it uses the Data out port settings for its internal communications with the digitiser Changing the associated baud rate requires making a network connection to the Lantronix unit
142. ge of the full output of the cailbration signal generator This can normally be given as 100 but should be reduced if clipping is noticed Issue C November 2010 Operator s Guide adc command module calib noise arguments Perform a broad band noise calibration according to the specified arguments which are given as a space separated list of key value pairs component ALL z N S E W specify the component s to be calibrated duration m specify the duration in minutes where m is an integer value For accurate results the duration should be significantly longer than the response time of the instrument amplitude a specify the amplitude where a is the integer percentage of the full output of the cailbration signal generator This can normally be given as 100 but should be reduced if clipping is noticed adc command module obs deploy Deploy an OBS system by levelling the bowl then unlocking and centring each mass in turn This sub command takes no options adc command module obs level bowl which Level the bowl or bowls of an OBS system The parameter which should be one of 1BOWL for single bowl units Z N S or E W adc command module obs datum bowl which Return the levelling bowl of an OBS system to the datum position The parameter which should be one of 1BOWL for single bowl units Z N S or E W adc command module obs unlock Unlock each of the masses for deployment of an OBS system This sub comm
143. ge screen it is shown here in pieces 11 5 1 Configurable parameters in standard mode Home gt Configuration gt Services gt qscd out gt 0 QSCD sender configuration User description kiGAM QSCD Quick Seismic Characteristic Data sender instat User label for the transmitter instance Enable go Enable the transmitter at system startup Delete go Delete this transmitter instance The User description of the server should be set to a meaningful name for the data that it will serve The server can be enabled or disabled at boot up using the Enable check box or deleted entirely by selecting the Delete check box Network parameters Station name pcm1o 5 letter SEED like station name to identify transmission Push host Like SEED QSCD links require a unique name to identify the source of the data This should be entered into the Station name field under Network parameters To send QSCD data to remote hosts enter their DNS names or IP addresses in the table with the associated service name or port number for each Port names and numbers are associated with each other in the standard Linux etc services file November 2010 149 CMG EAM Platinum Firmware 150 Strong motion data channels Select the instrument being used for QSCD packets here The instrument must be a CMG DM24mkS set up for strong motion mode including SI output Instruments which seem to be configured for strong
144. ging technique which is beyond the scope of this manual In most configurations all data for all transmitters is taken from a single multiplexor as described in section 1 3 on page 10 For more complex configurations it is possible to configure multiple multiplexers each with their own set of input and output services In these situations the GDI multiplexer drop down menu can be used to Issue C Operator s Guide select a multiplexer instance with which to associate this transmitter The menu offers a list of currently configured multiplexers The GCF BRP protocol requires the transmitter to store some state information By default this is held in the directory var lib gcf out brp n where n in the instance number counting from zero for the first instance The State directory text field can be used to cause this information to be stored elsewhere typically on another device This may be useful for managing storage utilisation in complex configurations 11 2 GCF Scream Server The GCF Scream network server transmits G ralp Compressed Format GCF data in the native Scream protocol over an Ethernet network To configure a GCF Scream network server from the web interface select System services from the Configuration All options menu or select the Services short cut from the Data transfer recording menu To configure a GCF Scream network server from the command line start gconfig and selec
145. gure sshd from the command line by directly editing the configuration files 6 5 1 Configuring sshd via the web interface From the main screen of the web interface under Configuration Networking select SSH server The screen is not reproduced in this document as it is particularly large due to the amount of explanatory text Each option is however discussed below The version of sshd installed openSSH supports both version 1 and version 2 of the ssh protocol Version 1 has some well known weaknesses and should be avoided if at all possible but some commercially available systems still do not support v2 so v1 is supported here for compatibility The Enable SSH Protocol v1 check box should be cleared unless your ssh client cannot support v2 or cannot be upgraded to support it Click the Change server options button to commit this change If you want to download the ssh server s public key to allow the connecting host to check and verify the CMG EAM s identity use the relevant Download server public key button there is one each for protocol versions 1 and 2 There is also the capability to command the CMG EAM to create a new private public key pair from this screen To configure password less login to the CMG EAM you can upload the public key of the connecting machine to the CMG EAM using the New client key section Browse the connecting host s file system for the key file usually named id _dsa pub and upload it here Thi
146. hould be connected to the 2 1mm barrel connector lowermost in the picture The central pin of the connector should be connected to the positive supply line IMPORTANT Do not connect anything to the larger barrel connector which is used for the heater and temperature sensor November 2010 107 CMG EAM Platinum Firmware 108 To prepare the disk on the CMG EAM using the web interface select the Removable disk item from the Tools menu and then click on the Format disk button After a delay while the disk powers up the following screen will appear Home Tools Removable disk Format Removable disk Format and partition disks If you have accessed the disk within the last minute or so or if it is in use by another program then formatting will fail In this case simply wait and try again in some minutes Usually you will want to select a disk under the partitioning option below This partitions and formats the disk If you know that you have other partitions on the device that you want to keep you can use the more advanced format option Select disk for partitioning The following disks are attached Pressing the Partition button will cause the selected disk to be repartitioned and then formatted This will erase any other partitions and filesystems on the disk dev sda Partition Select partition for formatting The following disks have valid partition tables The partitio
147. i base CD1 1 data handling and the associated system configuration are covered in a separate manual MAN EAM 1100 which is available for download from www guralp com The diagram below shows the basic internal organisation of the CMG EAM ignoring the CD1 1 subsystem non buffering FR output modules SA multiplexor gdi base Yy Ji buffering disk interface peH output modules Es ae The multiplexor makes incoming data available to the output modules These come in two flavours simple modules such as those for WIN GSMS and QSCD simply convert the data streams and output them in the required format other modules maintain a ring buffer which is used to for example satisfy BRP back fill requests The ring buffers use the NAND flash memory These output modules also send data to gdi record which handles all hard disk writing requests regardless of format 52 Issue C Operator s Guide The gdi base and gdi record programs are designed to be stateless so that the data on the disk are always consistent This means the system is tolerant of the power or disk being removed at any time Any number of input modules can be configured to acquire data in any supported format from any source simultaneously These modules convert their data and pass it to the multiplexor Data can be acquired in any of the following formats from multiple sources e BRP via serial lines
148. iable parameters 14 Issue C Operator s Guide 2 First Steps The CMG EAM can be configured and monitored either over an Ethernet network or via a serial RS232 line Network access is preferred The configuration interface as accessible using a web browser or in character mode using ssh or over a serial connection from a terminal emulator All models are fitted with at least one network port which can be automatically configured using DHCP If DHCP is not available serial access is required in order to set up the network parameters The CMG EAM has four serial ports any of which can be configured for this purpose although the D connector located under the lid is a dedicated console port The CMG DCM has three serial ports the port labelled DATA OUT is normally used for console access and a combined serial and power cable is provided for this purpose The hardware fitted to CMG NAMs varies but one serial port will usually be designated as the console port 2 1 Connecting to the Serial Port The CMG EAM s console port is a 9 pin D connector with DCE wiring located under its lid It can be connected via a serial RS232 modem cable i e pins 2 RxD 3 TxD and 5 ground connected straight through to a serial terminal or to a PC running either Scream or terminal emulation software The default settings for this port are as follows e 38 400 baud e 8 data bits no parity 1 stop bit 8N1 and e No flo
149. ich GCF compressor ringbuffer instance to get data from The second set of expert options shown above apply only to GCF recording The Fill threshold text field allows control over the percentage utilisation of the buffer memory which triggers a flush to disk The default is fifty percent The Directory format text field can be used to control the base directory under which all GCF files are stored It can be populated with a constant path name component or it can include escape sequences to include variable data such as the stream name these are described in section 10 2 3 on page 115 November 2010 113 CMG EAM Platinum Firmware The File name format text field allows files to be given descriptive names to help identify the data within Escape sequences can be used to include variable data such as the stream name the available escape sequences are described in section 10 2 3 on page 115 A hierarchical directory structure can be created by incorporating forward slash characters into the name these act as directory separators The GCF compressor drop down menu allows the operator to select which instance of gdi2gcf is used as the data source The menu will offer all configured instances Time span held in each output Lue Fill threshold 50 Percentage buffer fill that triggers an output flush Directory format Y j mseed Format for creating the output parent directory File name format Y jT H MZ
150. if in direct mode and also stored in flash as in filing mode although without the heartbeat operation The next section of the web page allows the selection of one of two storage modes which affect how data are stored in the digitiser s local flash storage Storage mode Enable storage re use When local storage is full new data arriving will over write the oldest data in the buffer Enable write once storage When local storage is full new data arriving will be transmitted as if in direct mode and will not over write the already stored data o Reset flash buffers on next digitiser update Selecting the Reset flash buffers on next digitiser update check box will cause all data in the flash storage to be erased and the read pointers to be reset Use with caution data will be erased The next section controls two settings associated with data transmission Transmission parameters Heartbeat interval 9 seconds The periodic status heartbeat is only used with filing and dual data modes Acknowledgement 150 milliseconds delay How long to wait before a transmission is assumed to have failed When the digitiser is in the filing or dual transmission modes regular heart beat messages are sent This allows software such as Scream to be aware of the devices even though they are not sending sampled waveform data The frequency of these messages can be set to an integer number of seconds usin
151. ign addresses connect the CMG EAM to the network and reboot it by turning the power off and on again Your network administrator may then be able to tell you the address that has been assigned to the CMG EAM but if not you can connect via a serial port and issue the ip command eam999 ip addr show eth0 2 eth0O lt BROADCAST MULTICAST UP LOWER UP gt mtu 1500 qdisc Prite tase glen L000 lLink ether 00450 02740 54475 Drd TETEE CEE Teer rere inet 192 168 0 101 24 prda 192 168 1 255 scope global etno inet6 fe80 250 c2ff fe40 5475 64 scope link valid Itt forever preferred LIC forever eam999 The key things to look for here are the adapter status and the IP address The first line of the output should contain the word UP confirming that the adaptor has been enabled The IP address that has been assigned is shown on the line beginning inet in this case it is 192 168 0 101 with a netmask of 24 bits indicated by 24 Note With an IP version 6 network the IP address will be on a line beginning inet In practice most networks today are still IPv4 as in the above example When using DHCP it is recommended that the DHCP administrator allocates a fixed IP address to the CMG EAM s MAC address in order to avoid unexpected address changes Note If you are setting up a unit in the laboratory for subsequent deployment in the field you can set up the final network address using the web interface and over ride it with
152. ill be transmitted anyway This limit is specified by the value in the Max delay field and defaults to five seconds If a packet in construction exceeds the size specified by Early transmit size this packet will also be sent early The WIN Format uses the local time in order to time stamp packets The offset of the local time zone from UTC used in the GCF data is specified in the UTC Offset box The final table specifies the mapping from GDI channel names to WIN channel numbers Note Previous versions of the firmware required this mapping to be entered in SEED notation but this is no longer the case Channels GDI channel name WIN channel number farses if Home Help Expert Submit Generated at 1970 01 07T20 38 162 by scs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited If the form is submitted when the table is full extra blank rows will be added when the form is redrawn Existing entries in this table can be deleted by ticking the Delete check box and submitting the form November 2010 153 CMG EAM Platinum Firmware 11 6 2 Configurable parameters in expert mode The following additional configuration parameters are available by clicking the Expert button at the bottom of the form Expert options Log file Log level GDI multiplexor Home Help Simple Submit Path to log file Leave blank to use syslog Important notices w Minimum severity level of messages t
153. ing such as the IP or hostname of the network digitiser The User label is another optional text field If set this label is used to identify the particular client instance in log files The service can be enabled or disabled at boot up using the Enable check box or deleted entirely using the Delete check box Specify the hostname or IP address of the network digitiser in the Remote Server text field and the port name or number that the digitiser is transmitting on in the Remote service box If the Allow disconnects check box is ticked the instance will attempt to automatically recover from lost connections by trying to reconnect to the server If the Disable rewind check box is ticked no attempts will be made to request missing data blocks This should only be selected if the server is unable to fulfil such requests Issue C Operator s Guide 9 2 2 Configurable parameters in expert mode Additional options appear on this screen when in expert mode LG Lie dlia Disable BRP rewinding for DM24s in adaptive mode etc Log file Path to log file Leave blank to use syslog Log level Important notices w Minimum severity level of messages to record in log Audit log size 256KiB medium w Debug port TCP port number or service name to which a copy of input is sent Port name override Replacement port name to display for terminal access GDI multiplexor Default data transpo
154. ing mirror You can keep multiple simultaneous versions of the firmware if you wish and tell each EAM which version to use when upgrading The server on which you create the mirror should have access to the internet during the download step but does not need internet access while it is acting as an upgrade server It does of course need to be accessible by your networked EAMs It is possible to create the mirror content on a removable disk attached to an internet connected computer and then move the disk to a different computer when it is to be served Create the mirror directory and use the cd command to make it your current directory As root enter one or more of the following command sequences to download the mirror content Each sequence downloads the files for a particular architecture If you know for example that you will never want to upgrade a CMG NAM64 you can omit the commands for this architecture Note Be careful not to omit the final or the space before it in the rsync commands below CMG DCMs This architecture currently requires around 50MB of disk space for the mirror GSLSRC rsync guralp com platinum stable CMG DCM mk2x rsync EgHloprtv exclude resolv conf rsyne GSLSRC November 2010 43 CMG EAM Platinum Firmware 44 CMG EAMs This architecture currently requires around 54MB of disk space for the mirror GSLSRC rsync guralp com platinum stable CMG DCM mk4 rsync Eg
155. ion this allows for the possibility of implementing customisations and user developed scripts which persist across upgrades Technical Note All files on the hard drive are left untouched as are any files in the directories home root var and usr local Files with the extension local are deleted To restore defaults while upgrading using the web interface select Firmware from the Tools menu as before but then press the Advanced options button The following screen is displayed Firmware update Upgrade from server Upgrade this system s firmware over the network using the Guralp rsync server You may also syne default configuration files erasing your own settings and restoring the defaults upgrade Standard upgrade from rsync server ee ee eee Upgrade from rsync server and restore default settings for all programs Erases user settings ee E _ Upgrade from rsync server and force factory settings Upgrade force factory settings Erases all changes made to files and settings Erases data that is not on removable disk Generated at 2009 035 24716 24 552 by firmware cgi 1 0 0 Portions of output copyright c 2008 Guralp Systems ltd The first button Upgrade does exactly the same as the similar button on the previous screen The Upgrade restore defaults button performs the action described in this section To perform this action from the command line invoke the
156. is set to Static The address should be entered in CIDR format where the address is followed by a slash and then the number of bits defining the netmask e g 192 168 0 1 24 for IPV4 or 2001 db8 32 for IPV6 For more information about CIDR please refer to http en wikipedia org wiki Classless Inter Domain Routing The Default route gateway field should be populated with the IP address of the default router If more complicated routing configurations are required these can be entered in expert mode 6 1 2 Configurable parameters in expert mode The following additional parameters are available when in expert mode Media type speed This is a drop down menu offering the following options for controlling the communication speed and duplex mode of the network link Automatically detected and set Restrict speed to 10Mbps Recommended to save power Fixed 100baseTx full duplex Fixed 100baseTx half duplex Fixed 10baseTx full duplex Fixed 10baseTx half duplex MTU This text field allows the Maximum Transfer Unit to be set for the network link This parameter controls the maximum packet size used for outgoing network packets If any segment of a link between two systems has a restriction on packet size larger packets flowing across the link must be fragmented broken into smaller parts and then re assembled on arrival This is inefficient and can badly affect the throughput of a link In such situations it makes se
157. isconnects fishatish desktop tmp ssh root 51 187 130 165 dcm105 rdisk mount Connected to server Powering up disks and requesting details Select disk to mount lt CanceL gt Requesting disk with UUID SOAD FSDS The disk 15 mounted at media SOAD FSDS A new bash session has been created When you exit from this bash session which you can do with exit or Ctrl D the disk will be unmounted It will remain mounted and thus powered up until you exit Then you will be returned to your original shell dcm105 Z suspend ssh 1 Stopped ssh root 51 187 130 165 fishafish desktop tmp scp r root S1 187 130 165 media SOAD FSDe 2O09336T 10302 gct 100 1886KB 314 3KB s5 OO 06 2009336T 11002 get 100 1781KB 356 2KB s 60 05 2009336T 11302 get l g 1910KB 382 0KB S 60 05 20093361T 12002 gct l g 1928KB 385 6KB s5 60 05 20093361T 12302 qct l s 195 KB 326 2KB s OO 06 2009336T 13002 gct 100 1889KB 3 8KB s GO aS fish fish desktop tmp fg ssh root 51 187 130 165 dcm105 exit Disk no Longer required by this shell session dcm105 Logout Connection to 51 187 130 165 closed fishatfish desktop tmp fg Note the use of ssh s tilde escape followed by to suspend the ssh session and return to the calling PC in order to run the scp command with the disk still mounted The fg command foreground returns control to the ssh session Issue C Operator s Gui
158. iscovery mechanism so for optimal accuracy it is important to specify the value here The ordinary delay associated with packet transmission down a short serial cable is already calculated and used so this field only needs populating if additional delays generated by say line drivers or modems are encountered It may sometimes be desirable for debugging purposes to separate log messages for this input from the standard system log The Log file text field can be populated with a path name which will then be used for November 2010 99 CMG EAM Platinum Firmware dedicated logging If left blank logging occurs via the standard Linux syslog facility to var log messages The Log level drop down menu controls the level of detail present in log messages whether to syslog or to a dedicated log file Not all of the standard syslog logging levels are available The menu offers a choice in order of decreasing detail of Debugging information Informational messages Important notices or Warnings The GCF input subsystem keeps its own audit log independent from the system log The contents of this log are available using the GCF Audit Log viewer facility as described in section 13 3 2 on page 182 The amount of data retained is controlled by the Audit log size drop down menu whose choices are 64Kib small 256Kib medium 2MiB large and 16MiB huge It is possible to copy all incoming data verbatim to
159. ished the data are re routed back to the lower cost link CMG NAM AE VULVA It is also possible to use data filtering by channel name and or sample rate in such a way that should it become necessary to use the higher cost link only high priority data e g samples resulting from an activated trigger are sent across this link while lower priority data are enqueued until the low cost link becomes available again November 2010 13 CMG EAM Platinum Firmware 1 4 5 CD1 1 Networking authenticated encrypted data CMG EAM a CMG EAM CMG NAM Platinum firmware has support for CD1 1 frame generation and forwarding with strong encryption and authentication provided by an optional embedded Spyrus hardware encryption device allowing CMG EAMs and CMG NAMs to form the basis of a secure CD1 1 network 1 5 Document Conventions Throughout this manual examples are given of command line interactions In all such examples a fixed width typeface will be used Example of the fixed width typeface used Commands that you are required to type will be shown in bold Example of the fixed width bold face typeface Where data that you type may vary depending on your individual configuration such as parameters to commands these data are additionally shown in italics Example of the fixed width bold faced italic typeface Putting these together into a single example System prompt user input with var
160. le terminal access through Scream clients Use the table below to limit terminal access to certain hosts See help IP address and mask The User description text field can be used to rename the service in configuration menus and log files to something more indicative of its function The first instance can neither be disabled nor deleted but if subsequent instances are created two additional check boxes appear on their associated configuration menu The Enable check box when ticked causes this service to statr automatically when the system is re booted If this check box is cleared the service will need to be started manually from the Control Services menu The Delete check box if ticked causes the configuration for this instance to be removed from the system when the form is submitted The Server hostname IP address text field can be used to restrict the server to listen for incoming connection requests only via particular network interfaces If multiple interfaces or addresses are configured for this system entering the IP address or associated hostname of one 134 Issue C Operator s Guide of them prevents connection attempts made to all other addresses If left blank connection requests will be considered from all interfaces The Server port service name field must be populated with the service name or port number on which it will listen for incoming connections This must not be us
161. ls whether changes made using the rest of this form take effect immediately or are only written to the configuration files When this box is cleared changes will only take effect the next time the unit is booted or the interface is reconfigured with this box ticked The Configuration method drop down menu offers the following choices Static The interface will take its address and routing parameters from values entered by the operator DHCP Dynamic Host Configuration Protocol The interface will attempt to obtain its address and routing parameters from a DHCP server Unconfigured but powered up possible VLAN trunk The interface will not be used directly but is available for carrying virtual network VLAN traffic Powered off The interface will not be used and the interface chip is disabled reducing the total power consumption by around 200mW The remainder of the screen looks like this Static IP address The following parameters are used only in a static configuration IP address Address in IPv4 or IPv6 format with CIDR format netmask see help Default route gateway The IP address of the gateway router for access to other networks Home Help Expert Submit Generated at 2010 01 21T15 19 372 by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited November 2010 57 CMG EAM Platinum Firmware The IP address field is only used if the Configuration method drop down menu
162. ltering by sample rate the maximum sample rate to send ae ike a All blocks ie Select which types of block to transmit If filtering by channel name the channels to be transmitted should be entered into the table below The exact name of the channel must be given in the format SYSID STRID The Output type drop down menu offers a choice of e All blocks filtering by block type is disabled e Only status blocks no data blocks are transmitted e Only blocks below a certain sample rate the threshold sample rate is specified in the following text field and e Only blocks matching a list of channel names offering the highest granularity of control If the previous field is set to Only blocks below a certain sample rate the Max sample rate text field is used to specify the threshold above which data are not transmitted If the Output type field is set to Only blocks matching a list of channel names the channel names must be specified in the following table Generated at 1970 01 07T15 42 272 by 6cs 2 9 9 Portions of output copyright c 1970 Guralp Systems Limited Issue C Operator s Guide 11 2 2 Configurable parameters in expert mode The following additional configuration parameters are available by clicking the Expert button at the bottom of the form Advanced options V4 0 COM g names Check this to use old V4 0 COMxx port names Uncheck for meaningful n
163. ly The disk is mounted at media 50AD F5D8 A new bash session has been created When you exit from this bash session which you can do with remain you wilrx ready to receive 2009336T1030Z gcf Bytes received 154112 Brotoo Te eam201 Transfer complete READY press any key to continue November 2010 come fxmodem download Press CTRL C TO GULL SARA 125 CMG EAM Platinum Firmware 126 A display counter indicates the progress and eventual completion of the transfer HyperTerminal users should mount the disk type the command eam2010 sx path to file and then immediately select Receive File from the Transfer menu A dialogue asking for the destination directory name is followed by another asking for the destination file name EAM HyperTerminal Hie kdt wew ell lansie Haf Hequesting disk with UUT 69RH 6707 The disk 1s mounted at media 69RA 67H A new hash session has been created When you exit From this bash session which you can do with exit or Ctrl D the disk will be unmounted Lt will remain mounted and thus powered up until you exit Then you will be returned to your original shell E Receive File Plassiscever lilz in 5 ZS Duvuner is sE eceive Filename Use receivrc picto modem never sends a Henane s0 poa must specih a modem fiereme for shoring bas r352 vec lils Foder Lecce ments and setbrge hzh File
164. mber of bits Default route 192 268 0 254 gateway The IP address of the gateway router for access to other networks Invalid address Home Help Expert Submit Throughout the remainder of this manual screen shots of the configuration system s web interface will normally omit the left hand pane as in the two illustrations above November 2010 29 CMG EAM Platinum Firmware 3 2 Using the command line configuration system All of the configuration facilities available under the All options menu item in the left hand menu of the web interface are also available from a text based GUI tool called gconfig G ralp Configurator This can be accessed either by using a serial link or over the network by using ssh Connection via a serial link is discussed in section 2 1 on page 15 and connecting over Ethernet is described in section 2 2 on page 17 The use of ssh is covered in section 2 2 4 on page 21 For optimal display you must let the CMG _ EAM know what type of terminal or emulator you are using This is done by setting the terminal type as an environment variable using the command eam999 export TERM TERM TYPE The value of the TERM variable TERM TYPE depends upon the terminal emulator you are using and should be chosen as follows Emulator in use TERM setting ssh under Unix No action required the ssh protocol sets the TERM environment variable automatically PuTTY in ssh No
165. meaningful name for the data that it will be receiving such as the IP or hostname of the Scream server The service can be enabled or disabled at boot up using the Enable check box or deleted entirely using the Delete check box If the CMG EAM has multiple IP addresses you can optionally restrict the client so that all connection attempts are made via only one address by putting it in the Local address field You can also specify that requests should be made from a specific port number by entering November 2010 105 CMG EAM Platinum Firmware it in the Local service field These two fields can normally be left blank In the Servers section you specify the details of the Scream servers from which you want to pull data The Name field should contain a descriptive name for identification purposes The Hostname field must contain the DNS name or IP address of the desired server The Service field should contain the UDP TCP port number on which the server is listening for data requests Port numbers can be mapped to names using the standard Linux etc services file which can be edited from the command line In the Type column choose whether you wish to use UDP packets or TCP connections With UDP packets the GCF protocol keeps track of which packets have been received and automatically requests retransmission of any missing data TCP on the other hand is a connection orientated protocol which handles packet sequencing and retr
166. mgs 13 02 08 Build 65 CTRL A Z for help 115200 8N1 NOR Minicom 2 3 rce VT102 Offline Issue C Operator s Guide If the session closes due to a time out or you close it manually by issuing the GO command then you will see the message Killed by signal 15 and minicom will exit shortly thereafter If you wish to upload new digitiser firmware please follow the digitiser manual to prepare it to gious awe then use the standard minicom Send files Ctrl command to initiate an X Modem upload Refer to section 14 4 for instructions on using Minicom Digitiser firmware files may be found under the directory usr share firmware on the CMG EAM Once downloaded please follow the instructions given in the digitiser s manual to complete the process 13 2 3 Rebooting The Reboot item on the Control menu allows CMG EAMs and CMG DCMs to be rebooted CMG NAMs can be both rebooted and powered off To reboot from the command line prompt use the reboot command eam999 reboot 13 2 4 Services The Services item from the Control menu takes you to the Services Control screen This screen gives a list of all configured services services are the background programs that read convert and and write data and carry out the individual functions of the CMG EAM The services are presented in three columns In the first is given the name of the service and in italics its description The second
167. mmands When you are finished with your SSH session and want to disconnect enter exit at the command line or type a lt Ctrl gt D character There are a number of escape sequences for controlling the session all of which begin with a tilde so if you need to send a tilde character to the CMG EAM type two tildes consecutively For more information see the section on Escape Characters in the SSH manual page at http man wiki net index php 1 ssh Note If you plan to use ssh regularly to communicate with a CMG EAM you can configure the system to bypass the password prompt from a list of pre authorised computer user combinations This involves generating a unique key pair for the user and PC which will access the CMG EAM and then copying the public half of the key pair to the CMG EAM This is documented at http suso org docs shell ssh sdf 2 2 4 2 SSH connections using PuTTY To use PuTTY you must know or discover the IP address of the unit as described in the previous section Once you have the IP address start PuTTY by choosing it from the Start menu or double clicking on its icon You will be presented with the following screen 22 Issue C Operator s Guide i PuTTY Configuration Category E Session Logging B Terminal Kkepboard Bell Features B Window Appearance Behaviour Translation Selection Colours B Connection Data Proxy Telnet Rlogin SSH Serial Basic o
168. mode offers no filtering and provides system generated names for each channel forwarded by gdi base Semi automatic all channels are compressed names may be mapped below In this mode one or more of the channels may be renamed by adding entries to the mapping table If you wish to use this mode it may be useful first to run the system in automatic mode for a short while this will populate the mapping table with an entry for each currently 140 Issue C Operator s Guide known channel which can serve as the basis for your own mapping table Manual only channels named below are compressed This mode offers both channel filtering and name mapping If you wish to use this mode it may be useful first to run the system in automatic mode for a short while this will populate the mapping table with an entry for each currently known channel which can serve as the basis for your own mapping table Entries from the mapping table can be deleted by ticking their associated check box and submitting the form Additional configuration parameters are available in expert mode t wm oT Database directory var lib gdi2miniseed default Path in which database and control files are placed Must be unique Togi SY Path to log file Leave blank to use syslog Log level Important notices v Minimum severity level of messages to record in log GDI multiplexor Default data transport daemon v Sel
169. motion GSL 2010 GSL 2011 GSL 2012 Instrument Enter instrument name SYSID SER here Omit last two digits from channel name Home Help Expert Submit Generated at 1970 01 07T20 22 042 by scs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited The CMG EAM scans all incoming data and prepares a list in the correct format of the names of instruments which are sending strong motion results Enter one of these names in the Instrument field The QSCD protocol only supports a single instrument If you need to transmit results from multiple instruments you should configure multiple QSCD sender instances one for each instrument 11 5 2 Configurable parameters in expert mode The following additional configuration parameters are available by clicking the Expert button at the bottom of the form Expert options file wee el bath to log file Leave blank to use syslog level Important notices Minimum severity level of messages to record in log GDI multiplexor Default data transport daemon Select which GDI multiplexor to gather data from Home Help Simple Submit Generated at 1970 01 07T20 33 322 by scs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited It may sometimes be desirable for debugging purposes to separate log messages for this transmitter from the standard system log The Log file text field can be populated with a path name
170. mware pod is conected and registered the filesystem should be mounted by entering the following command mount t ext2 o ro dev disk by label Pt firmware mnt Run upgrade script Once the filesystem is mounted you can run the upgrade script This is not the same script that is used for network upgrades but it takes the same optional arguments These arguments are documented in section 4 3 on page 49 which should be read before proceeding Once you have decided which argument if any you wish to use run the script with the command mnt upgrade optional argument Note Some early Platinum releases only had ext3 filesystem support If this is the case the above command will result in an Invalid argument error message If this occurs simply change ext2 in the above command to ext3 Ensure there are no error messages and then reboot the device Once the unit has rebooted the upgrade process is then complete Issue C Operator s Guide 4 3 Upgrade Types There are three different types of upgrade each of which is described below When upgrading via the web interface the desired type is selected by pressing the appropriate button When upgrading directly from the command line or from a USB storage device the required type is selected by the use or omission of command line arguments 4 3 1 Standard upgrade The standard upgrade brings the firmware to the latest revision while respecting and preserving
171. n Serial ports from the main menu then on Port A GCF in GCF input settings and then click the Expert button You will see a drop down selection list labelled Audit log size from which you can select 64Kib 256Kib 2MiB or 16MiB To change the GCF audit log buffer size for the Scream network server select Services from the Data transfer recording section of the Configuration menu then click on GCF Scream network server Click on the entry for the instance you wish to change and then click the Expert button at the bottom of the page You will see a drop down selection list labelled Audit log size from which you can select 64Kib 256Kib 2MiB or 16MiB Each entry in the table has a View button which shows detail from the relevant log at block packet level The view for Port A is shown here November 2010 183 CMG EAM Platinum Firmware GCF audit log viewer Port A Search within this log Recent entries 2009 07 13 ID A6 amp 30 55TPNE Timestamp 2008 07 13 T16 36 36 0000000002 Digitiser CMG DM24mk3 WBlock type data Sample rate 20 samples second Compression 32 bit Number of samples 20 ID A630 55TPSM Timestamp 2009 07 13T16 36 36 0000000007 WDigitiser unknown probably CMG DM24mk2 Block type strong motion Number of words 50 ID A830 59TPEE Timestamp 2008 07 13T16 36 36 0000000002 Digitiser CMG DM24mk3 S0
172. n ethO from the resulting right hand pane sub menu Removable disk I Home gt Configuration gt Networking eth0 Configuration All opti Fae Network Interface ethoO Save Restore Data transfer recording Nick recording Device name Fixed The All options item from the Configuration section of the left hand menu is referred to simply as Configuration and this is also the entry point for the command line interface to the configuration system This page can be reached from almost every point in the system by clicking on the Home button displayed at the bottom of most right hand pane forms In some cases the same screen can be reached by a variety of routes For example the screen above can be reached with two fewer clicks by selecting the Interfaces short cut from the Networking section of the left hand pane menu and then clicking through to ethO The links at the top of the right hand pane will not reflect the fact that a short cut has been taken LAL LoL Vie Serial ports Home Confiquration gt Networking gt eth0 Services Tasks Networking Network Interface eth0O Interfaces Mail NTP Device SSH server Device name Fixed Most of the configuration forms have on line help available This can be turned on for the current page by clicking the Hel button displayed at the bottom of the form The help text will appear in blue interleaved wi
173. n network traffic on the same physical subnet Virtual interfaces can be created and assigned to a particular VLAN tag November 2010 61 CMG EAM Platinum Firmware 62 ID and a particular physical interface A full discussion of VLANs is beyond the scope of this document To configure a virtual network interface from the web interface select Networking from the Configuration All options menu or select the Interfaces short cut from the Networking menu To configure a physical virtual interface from the command line start gconfig and select Networking from the top level menu The following screen is displayed only the web version is shown here the character version is laid out and behaves identically Home Confiquration gt Networking Networking configuration Select a network interface to configure ethO Primary wired network interface Create a new VLAN interface or a network service Network Time Protocol NTP daemon Home Help Expert Submit Generated at 2010 01 22T17 38 302 by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited The second option Create a new VLAN interface takes you to the following screen shown here in parts Home Confiquration gt Networking New VLAN VLAN Interface Creation Hosting Interface eth0 Primary wired network interface VLAN tag The
174. n parts Home gt Configuration gt Serial gt PortA PPP Port A PPP Settings Connection type Local serial link active client mode The connection style to use Number of seconds to power down modem between ao calls IP addresses and routing This section can be left empty if the remote end of the link performs all the configuration Otherwise some or all options may be supplied If the remote link is also the router you should use the Default route option sa oF Sets the local IP address Omit if remote end assigns one Sema Sets the remote IP address Generally omitted Local IP address IPv6 Sets the local IP address Omit if remote end assigns one Remote IP address IPv6 Sets the remote IP address Generally omitted Default route go Causes PPP daemon to provide the default route Choose the required Connection type from the following list Local serial link active client mode Local serial link passive server mode GPRS connection via Vodafone e GPRS connection via T Mobile The choices available from this menu reflect the chat scripts installed on your system If you wish to use a satellite modem or GPRS with an ISP other than those listed please contact G ralp Systems Ltd technical support In the Number of seconds to power down modem between calls text field set the desired time out for the modem if required The IP addresses and routing section of this p
175. name 25 T 100 gel Ccrrected CC JJ 28 ANSI 115200 M 1 When you click the OK button a progress indicator appears EAM HyperTerminal bie kdt wew ell leansfer Haf Requesting disk with UUT 69RH 6fAar _ The disk 1s mounted at media 69RA 67H A new hash session has been created or Ctrl D Lal pn ie me P gt r dhen you exit trom tha An the disk will be unmoLi you exit Then you wil sx_ necia Einikis Packet 137 Fv erking CAC R elries Totalratnes 0 ast errr Throughput Classed 39 00 55 CAQucecimeriks and Selling es 20093367 1 STE yet Ccrrected COI 28 ARIST 115200 M 1 Issue C Operator s Guide You will be returned to the prompt when the transfer is complete 10 3 2 Reading the removable drive on other computers The removable drive may be disconnected from the system at any time without risk of data loss In practice users will normally manually flush the memory contents to disk using either the rdisk flush command or the Flush to disk button on the Removable disk page of the web interface and allow that process to complete before removing the drive The drive can then be connected to any computer that supports external USB or FireWire storage devices In some circumstances you may need to provide a power connection to the drive see section 10 1 on page
176. named after the initial letter of the terminal name Some settings for specific applications are e SSH under Unix or puTTY under Windows running in SSH mode no action required the SSH protocol sets the TERM environment variable automatically e Minicom under Unix no change Minicom emulates a vt100 style terminal and automatically maps the keystrokes and display sequences for the actual terminal you are using so the default TERM setting of vt 100 is correct e HyperTerminal under Windows choose the File menu option Settings and ensure that the terminal type is set to VT100 HyperTerminal will then emulate a vt100 style terminal which will match the default TERM of vt 100 on the CMG EAM These settings will provide the best results for the listed applications Note that when connecting with SSH from for example an xterm window use of the mouse for menu navigation is supported 2 2 Connecting to the network port To use the network port you must first set up a network address Some networks use the Dynamic Host Configuration Protocol DHCP to automatically assign network addresses others need manual configuration normally referred to as static addressing Before you November 2010 17 CMG EAM Platinum Firmware can access the CMG EAM over a network you must set for static addresses or discover if you use DHCP its IP address 2 2 1 DHCP assigned addresses If your network uses DHCP to ass
177. nc guralp com This will send three echo request packets to the GSL upgrade server and listen for responses If both the DNS server and the correct gateway router are configured the output will look like this November 2010 41 CMG EAM Platinum Firmware eam2010 ping c3 rsync guralp com PING YSsynC gurelp com 6000 92 00 56 date bytes 64 bytes from 80 68 92 160 seq 0 ttl 55 time 58 280 ms 64 bytes from 80 68 92 160 seq l ttl 55 time 66 845 ms 64 bytes from 80 68 92 160 seq 2 ttl 55 time 56 413 ms FS YnNG OuUralp com pind Statistice 3 packets transmitted 3 packets received 0 packet loss round trip min avg max 56 413 60 512 66 845 ms eam2010 If the DNS server is correctly configured but the gateway is not correctly configured the output will look like this eam2010 ping c3 rsync guralp com PING reyne guralp com 60 60 92 160 2 56 data bytes ping sendto Network is unreachable eam2010 If you are using DHCP it is advisable to correct this problem by reconfiguring the DHCP server to supply the correct route If you are using static addressing enter the address of the internet gateway router in the Default route gateway field of the network interface configuration form See section 6 1 2 no page 58 for more details If the DNS server is not configured correctly or at all the output will look like this eam2010 ping c3 rsync guralp com ping bad address r
178. nd select Networking from the top level menu The following screen is displayed only the web version is shown here the character version is laid out and behaves identically Home Configuration gt Networking Networking configuration Select a network interface to configure e ethO Primary wired network interface Create a new VLAN interface or a network service Network Time Protocol NTP daemon Mail Transfer Agent e mail service Home Generated at 2010 01 22T17 38 302 by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited November 2010 55 CMG EAM Platinum Firmware The first link on this screen takes you to the configuration page for the first physical network interface If your hardware has multiple physical interfaces you may need to create configurations for them using the Create a new interface button Once created the can be configured in an identical manner to eth0 as described below 6 1 1 Configurable parameters in standard mode The configuration form is large and is shown here in parts Home Configuration gt Networking eth0 Network Interface ethO Device etho Device name Fixed MAC address 00 01 c0 05 43 cb MAC address Fixed Description Primary wired network interface User description of the interface Enable interface a Allow the interface to be used Startup enable v Start the interface at system startup Enact on su
179. ng technique which is beyond the scope of this manual The Port name override text field allows the operator to specify a descriptive name for this data source If left blank it will be labelled with the IP address and service number of the source device and this label will appear in for example the GDI channels display and the network tree in Scream In most configurations all data from all inputs is sent to a single multiplexor which then feeds all outputs as described in section 1 3 on page 10 For more complex configurations it is possible to configure multiple multiplexers each with their own set of input and output services In these situations the GDI multiplexer drop down menu can be used to select a multiplexer instance with which to associate this receiver The menu offers a list of currently configured multiplexers 9 3 Data from Scream servers The CMG EAM has the ability to receive data over the network from Scream servers Data can be received from a number of Scream servers using a single Scream client To set up a Scream client on the CMG EAM select System services from the Configuration All options menu or select the Services short cut from the Configuration Data transfer recording menu To configure a Scream client from the command line start gconfig and select System services from the top level menu From the System Services menu select gcf in sc
180. ngs tamper_5 Input Input high on External tamper 5 Last changed 2010 01 27T17 36 342 Set output low switch off Set output high switch on View details settings tamper_int Input Input low off o input Chassis tamper detect Last changed never Set output low switch off Set output high switch on Refresh Generated at 2010 02 04T11 28 57Z by ioline cgi 1 9 6 Portions of output copyright c 2010 The detail screen for the tamper detection items display no useful information beyond that displayed on the summary screen 13 2 2 Digitiser Sensor Control The CMG EAM allows control of attached digitisers and sensors via the web interface or the command line To configure digitisers see section 7 on page 78 The web interface is simpler and requires no detailed knowledge of the attached devices The command line interface is more powerful but requires detailed knowledge of the digitiser s command line interface and the manual for the digitiser in question should be referred to for further details 13 2 2 1 Digitiser Sensor Control Web interface The main menu of the web interface adapts to include additional options when the system detects attached digitisers and or digital sensors November 2010 173 CMG EAM Platinum Firmware Extra items in the Control menu are associated with digitiser serial numbers If a digitiser has two sensors attached to it it is recommended
181. ns they contain may be formatted Select a partition and press the Format button dev sdal Mi Format i Generated at 2010 01 28T16 25 31Z by rdisk cgi Portions of output copyright c 2010 Guralp Systems Ltd The drop down menus for device selection use the Linux device naming convention where dev sda is the first device dev sdb is the second and so on Individual partitions on devices are identified by an appended number so dev sdal is the first partition on the first device and dev sdb3 is the third partition on the second device The Partition button causes the selected device to be repartitioned with a single partition which is then reformatted If you are using a device with existing partitions that you wish to preserve you should use the Format button instead Successful completion of the format is signalled by a short on screen message The disk is then ready for use Disks can also be formatted from the command line with the command eam999 rdisk format Issue C Operator s Guide 10 2 Recording data All data recording is performed by the gdi record module Data are recorded first to a buffer held in flash memory When the buffer utilisation exceeds a configurable percentage a process is triggered to flush the data to the hard drive In low power applications the hard drive will normally be powered down and so must be powered up and mounted before use It is then dismounted and powered down
182. nse to restrict the maximum packet size at the sender to match the limitation so that all packets can pass unimpeded There is no method to empirically determine the optimum MTU for a given link from the CMG EAM itself but if the link is to a PC or in the case of say a link between two CMG EAMs one end can 58 Issue C Operator s Guide temporarily be replaced by a PC the PC can be used to investigate the link properties and the correct value can be obtained For more information please see http www dslreports com faq 695 Note that if testing from a PC running Windows the MTU of the Windows PC should be set to 1500 before starting the test The Extra dhcpcd arguments field can be used to change the operation of the DHCP client Please see http man wiki net index php 8 dhcpcd for information about what options can be added here The Extra ip addr arguments field can be used to tune the operation of the network interface A non standard broadcast address can be specified by entering broadcast broadcast address For other settings that can be used here please see http linux die net man 8 ip The Nameserver field should be used to specify the IP address of the DNS server for your network This field must be set correctly before internet firmware upgrades can be used A secondary DNS server s address can be added in the Backup nameserver field The Default route gateway field should be populated with the IP ad
183. ntel PXA270 32 bit processor running at 312MHz with 64Mb of RAM and 512Mb of on board flash The amount of flash memory can be increased with the use of G ralp plug in flash modules The CMG EAM has 100Base TX Ethernet up to 8 serial ports for connecting to external devices and several USB ports The CMG DCM uses an Intel SA1100 StrongArm 32 bit processor running at 220MHz with 64Mb of RAM and 192Mb of on board flash The CMG DCM has up to 7 serial ports for external devices and 10Base T Ethernet The CMG NAM is a flexible platform but is generally based upon a VIA C7 processor with 512Mb of RAM and various options for local storage including RAID arrays It has 100Base TX Ethernet November 2010 9 CMG EAM Platinum Firmware 1 3 Software Overview The Platinum firmware is very flexible and can be configured to perform many tasks An overview of its capabilities is presented here e Data acquisition Data can be acquired in various formats via Ethernet or serial ports e Recording Data can be recorded to removable disk in various formats Recording initially occurs to internal flash which is flushed to removable disk when full or on demand This minimises power usage The removable disk can be removed at any time without data loss e Data forwarding GCF output via serial port or TCP stream GCF output via Scream Server TCP UDP G ralp Data Interconnect GDI used for interchanging data both between CMG
184. nux die net man 5 ntp conf 6 4 Email configuration Platinum firmware is capable of sending system alerts via email over the Internet or over a local area network This feature is currently unused but is provided for future expansion To configure email from the web interface select Networking from the Configuration All options menu and then click on the link for Mail Transfer Agent e mail service or select the Mail short cut from the Networking menu To configure NTP from the command line start gconfig select Networking from the top level menu and then select Mail Transfer Agent e mail service The following screen is displayed 66 Issue C Operator s Guide Home gt Configuration gt Networking gt Mail Mail Transfer Agent These parameters control the Mail Transfer Agent MTA used to relay e mail between machines Enable MTA v Start the MTA at system startup Smart host Smart delivery host leave blank to attempt direct delivery Mail host identity Our identifying name leave blank to use the global hostname Postmaster alias The mail address all system mail should be directed to Home Help Expert Submit Generated at 2010 01 25T14 45 172Z by cs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited 6 4 1 Configurable parameters The Enable MTA check box is used to control whether the mail transfer agent is start
185. o not need them to hold structured data you can use them to store any information you wish such as sensor details There are one or two info blocks per digitiser and the display will recognise this fact The Display device info blocks button shows the contents of the infoblocks and allows you to upload new data to them should you wish November 2010 79 CMG EAM Platinum Firmware The next section of the screen controls the latency mode and compression mode of the digitiser Low latency mode is intended for use with strong motion calculations The digital filtering is changed from finite impulse response FIR to infinite impulse response IIR and packets are output each second at twenty samples per second in order to achieve very near real time data Low latency mode cannot be selected unless certain preconditions are met for example the first decimator output must be set to two hundred samples per second If all preconditions are satisfied the Enable low latency operation button is enabled As an alternative the Force low latency operation button can be used to make all necessary changes before enabling low latency mode Normal operations mode The fastest decimator tap must be set to 200sps before switching to low latency operation Force low latency operation Compression mode Compression mode Custom 32 bit 40 samples max v The Compression mode drop down menu controls how samples are packed affectin
186. o record in log Default data transport daemon al Select which GDI multiplexor to gather data from Generated at 1970 01 07T20 43 432 by scs 2 9 9 Portions of output copyright c 1970 Guralp Systems Limited It may sometimes be desirable for debugging purposes to separate log messages for this transmitter from the standard system log The Log file text field can be populated with a path name which will then be used for dedicated logging If left blank logging occurs via the standard Linux syslog facility to var log messages The Log level drop down menu controls the level of detail present in log messages whether to syslog or to a dedicated log file Not all of the standard syslog logging levels are available The menu offers a choice in order of decreasing detail of Debugging information Informational messages Important notices or Warnings In most configurations all data for all transmitters is taken from a single multiplexor as described in section 1 3 on page 10 For more complex configurations it is possible to configure multiple multiplexers each with their own set of input and output services In these situations the GDI multiplexer drop down menu can be used to select a multiplexer instance with which to associate this transmitter The menu offers a list of currently configured multiplexers 154 Issue C Operator s Guide 12 Building Networks 12 1 GDI link The GDI link protocol provides th
187. of the screen If the digitiser is running in dual serial mode both serial numbers are displayed on this screen in separate TOWS The next section configures the digitiser for its attached devices Connected devices Sensor type CMG 3T ESPC Timing source NMEA protocol GPS v GPS power cycling Disabled Mass auto centering At 60 excursion w Device info blocks Info block 1 is set Display device info blocks The sensor type can be set although this has no effect on the CMG EAM s operation and acts as a memo field The timing source for the digitiser should be set to NMEA protocol GPS which should be used for all GPS devices or None for situations where there is no timing source GPS units can be turned off to save power in battery powered environments In order to keep the internal clock synchronised the GPS unit is regularly turned on for long enough to obtain an accurate time and then turned off The GPS power cycling drop down allows you to select the intervals at which this happens 1 2 3 4 6 8 21 or 24 hours or whether to leave the GPS constantly powered up Info blocks are areas of storage within the digitiser which can hold arbitrary data In some applications such as when generating strong motion packets they should hold structured information about the attached sensors Refer to the strong motion set up guide for more information about this topic If you d
188. ommunications hub in larger networks This document describes the configuration and operation of Platinum Firmware which is the native firmware of CMG EAMs CMG NAMs and CMG DAS units CMG DCMs can be upgraded to run Platinum E 7 firmware for such units once upgraded this manual Platinum should be used instead of MAN DCM 0001 The CMG DCM is a stand alone communications module equipped with a removable hard drive located under the lid three bi directional serial ports and support for external USB storage devices and Ethernet networking Some CMG DCMs were embedded into CMG DAS units such as the DM24S3DCM see below The CMG EAM is the next generation CMG DCM and includes totally re designed electronics It provides all the above facilities along with an extra serial port designated for console use a battery backed real time clock current voltage and tamper line monitoring plus an optional encryption authentication module The CMG EAM is available in a variety of packages including Peli case as shown above borehole ocean bottom and metal tube steel or aluminium versions top left CMG EAMs are also supplied embedded into CMG DAS units such as the DM24S6EAM 6 Issue C Operator s Guide The CMG NAM Network Appliance Module is a rack mountable device intended to complement data communications networks using CMG EAMs and contains more interfaces processing power and
189. or to a form Forms are composed of editable fields which are either Text entry fields into which the operator can type textual parameters Text entry fields are identified by surrounding braces and T Check boxes where the operator has a yes no choice Check boxes are identified by surrounding guillemots and as or Drop down menus where the operator must choose one option from a list Drop down menus are identified by surrounding chevrons lt and gt To move between fields use the cy EJ or keys 3 2 1 Text entry fields To edit the contents of a text entry field place the cursor on the field using the cy E or keys and start typing Characters typed are always inserted at the current cursor position i e existing characters are never over typed The whole field is shown with a black background as seen below and the cursor is identifiable as a pale block Lidka kdl n haki a khad a HH a ka hd 4 Primary wired network interface Description 32 Issue C Operator s Guide The and keys move the cursor within the field and the key deletes characters to the left of the cursor When you are satisfied with the new value the D and keys allow you to move to the previous and next fields respectively 3 2 2 Check boxes To Aa the setting of a check box place the cursor on the field using th icy 4 Or keys and use the key to toggle between selected and not selected When you a are s
190. pping is stored in the standard Linux file etc services which can be edited from the command line The server is capable of generating TCP keep alive packets in order to defeat any automatic disconnect on idle mechanisms which may be present on the link Tick the TCP keepalive check box to enable this feature Like the GSTM client the GSTM server also generates watchdog packets to monitor for link failure These may also be more effective at maintaining a link than TCP keep alives because some network devices automatically block and or spoof keep alive packets Watchdog packets are sent after a certain amount of time when the link appears to be idle and at regular intervals thereafter until traffic is detected This time interval can be configured by entering an integer value in seconds in the Watchdog interval field Client setting Encryption key Startup command November 2010 165 CMG EAM Platinum Firmware A single GSTM server instance can accept simultaneous connections from multiple clients For each client a row in the Client setting table needs to be filled in The Client name column should contain the username as configured in the GSTM client The encryption key should match that configured in the client see the notes in the client configuration section on page 161 for more information The GSTM server can run an arbitrary command when a client successfully initiates communication
191. ptions for your PuTTY session Specify the destination you want to connect to Host Hame or IF address Port ae Connection type OBa O Telnet Algan SSH Serial Load save or delete a stored session Saved Sessions Default Settings Delete Close window on exit Always O Never Only on clean exit Enter the IP address of the CMG EAM into the Host Name or IP address box check that SSH is selected as the Connection type and then click the button The first time you use SSH to connect to a host you will be asked to verify the host key PuTTY Security Alert A The server s host key is not cached in the registry You have no guarantee that the server is the computer you think ik is The server s rsaz key Fingerprint is ssh rsa 2046 abs FOSS do 6F 2bicd se Od bl eb Fe Sb Sa co 6e TF you trust this host hit Yes to add the key to PuTT Y s cache and carry on connecting IF you want to carry on connecting just once without adding the key bo the cache hit Wo IF you do not trust this host hit Cancel to abandon the connection This can be ignored the first time simply click to dismiss the dialogue but if you are ever asked this again it means that either the host key of the CMG EAM has changed perhaps because of a November 2010 23 CMG EAM Platinum Firmware firmware upgrade or there is a network address conflict or wor
192. qcf raw Follow 2009338 gef raw Follow 2009339 gcf raw Follow 2009340 gcfraw Follow 2009341 gef raw Follow 2009342 gef raw Follow 2009343 gef raw Follow 2009344 gef raw Follow 2009345 gcfraw Follow Descending into one of these directories using the follow button produces this November 2010 119 CMG EAM Platinum Firmware 120 Home Tools gt Removable disk Filesystems gt 50AD F5D8 gt 2009336 qcfraw Removable disk file index Filesystem UUID 50AD F508 Path 2009336 gcfraw Choose a subdirectory to follow or a file to download File or directory name File size Follow or download up to parent directory 2009336T 09302 gef 0 9MiB Download 2009336T1000Z gcf 2009336710302 gcf 1 8MiB Download 2009336T1100Z gcf 2009336711302 gcf 1 9MiB 2009336712002 gef 1 9MiB Download 2009336712302 gcf Download 1 arnyn lna 4 If the displayed directory contained subdirectories you could continue to navigate down them using the Follow buttons When files are present as in the above screen shot they each have an associated Download button which invokes your web browser s standard download facility to copy the data to your computer 10 3 1 2 Downloading over a network using the command line Note It can take several
193. quration gt Services gt qdi link rx GDI link receiver instance selection Select the GDI link receiver instance you wish to configure e System gdi link receiver does not start automatically Create new service instance Home Help Expert Submit Generated at 1970 01 06T20 17 012Z by scs 2 6 9 Portions of output copyright c 1970 Guralp Systems Limited In most cases you will only need a single instance and you can enable and reconfigure the Default Instance for your requirements Clicking on the Default Instance link brings up the screen shown overleaf You can enter a descriptive name for the instance this is useful if you are configuring multiple instances but in most cases this can be set to the hostname of the CMG EAM The Network Settings section allows you to set an optional client name which will be visible from the GDI link server Issue C Operator s Guide If the GSL EAM has multiple network addresses you can limit the GDI link receiver to use only one of them by entering it in the Local IP address field If left blank the receiver will listen on all configured addresses The default GDI link port is 1566 but this can be over ridden if desired you would want to do this if you had multiple instances running on the same address by entering a port name or number in the Local port service field Home Configuration gt Services gt qdi link rx default GDI Link R
194. r more complex configurations it is possible to configure multiple multiplexers each with their own set of input and output services In these situations the GDI multiplexer drop down menu can be used to select a multiplexer instance with which to associate this compressor The menu offers a list of currently configured multiplexers 11 3 2 The SEEDlink server The SEEDlink server transmits data in miniSEED format data only no station and channel metadata over the network to remote data consumers The data are generated by a GDI Mini SEED compressor instance Note The SEEDlink server requires data in 512 byte blocks the compressor must be reconfigured from its default setting 4 Kbytes if the SEEDlink server is to be used see the previous section for details A single SEEDlink server instance takes data from a single compressor instance and can serve multiple simultaneous clients If it is required to serve different channels to different clients multiple server instances should be configured each receiving data from a different compressor instance the channel selection is controlled by the compressor not the server A server has a configured Organization name if data are to appear to come from multiple organizations multiple server instances should be configured they can share a compressor instance if they will be serving the same channels or a number of compressor instances can be used To configure a S
195. ration System Changes have been made Changes have been made to the previous form You can choose to discard the changes and continue with the next form or you can return to these changes in order to save them Make your selection with the buttons below lt Discard changes gt Select lt viscard changes to ignore any parameters that you have altered and continue to the home menu or select lt return to changes to review the form and if desired submit it before navigating away from it The following table provides a summary of all keystrokes that can be used when filling or navigating forms Keystrokes used in forms Keystroke Used for Cursor to next field or if in activated drop down menu field next item in drop down menu Be or Cursor to next field or if in text field move edit cursor rightwards Cursor to previous field or if in activated drop down menu field next item in drop down Cursor to previous field or if in text field move edit cursor leftwards November 2010 35 CMG EAM Platinum Firmware Keystrokes used in forms Activate or deactivate list field or bottom line button scala Go to the home menu or if there already exit gconfig Display help text Show expert mode fields Submit the current form Move to the next page of a multi page form F or Move to the previous page of a multi page
196. ream GCF Scream network client The next screen shows a list of all Scream network client instances that have been configured GCF Scream network client instance selection Create new service instance Home Generated at 2009 07 10T1I4 20 012 by ccs 1 7 5 Portions of output copyright c 2009 Guraip Systems Limited 104 Issue C Operator s Guide To configure a Scream receiver select Create new service instance The resulting screen allows you to configure the parameters of the Service Home gt Configuration gt Services gt gcf in scream gt 0 Scream network client User description GCF Scream network client instance 1 User label for the convertor instance Enable B Enable the convertor at system startup Delete g Delete this convertor instance Please note this page has additional descriptions for the sections below press the Help button to view them Network options Local address Local interface address or hostname Leave blank for all Local service scream1 Local port number or service name Servers Each server requires a unique name This is used for configuration and logging only Name Hostname service Type Delete Home Help Expert Submit Generated at 2010 01 27T16 04 542 by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited The User description field sets the name of the service this should be set to a
197. removable drive on other computers 127 Ti Er anSmytins Dalaran E E A r 128 CEE GORBRP Network S0C srami ne ae hee 128 11 1 1 Configurable parameters in standard mode sssseessesssersserssrrssess 129 11 1 2 Configurable parameters in expert mode ssssseesssersseessesssrrsrresersss 131 TEZ GEE Cl Cail DCL VEL orario aN A E E O TENE 133 11 2 1 Configurable parameters in standard mode sesseessessserssrssressss 134 11 2 2 Configurable parameters in expert mode sesssresssersserssessrrrsrreseress 137 IES OBED T Keras son cesedacwnseal esac astsa sane onan uci 138 11 3 1 The GDI Mini SEED COMPTEeSSOT cccccsseseccseecaeeeceeseaeseeeuseneeenaes 138 1133 21 Ne SEBONIK SOP CT arina a ETOO EOI 142 11 4 G ralp Seismic Monitoring oystein enosn e a T TEE 145 11 4 1 Configurable parameters in standard mode sssseessesssersserssrrssess 145 11 4 2 Configurable parameters in expert mode sessseessserssesssesssrrsrresersss 147 11 5 Quick Seismic Characteristic Data eesesesseseeesseserrsrrsrersressrrsrrseeseresrrsees 148 11 5 1 Configurable parameters in standard mode sssseessesssersserssressess 149 11 5 2 Configurable parameters in expert mode sssssseesssersserssesssrrsrreseress 150 TAG WIN SOIC CP siers E AEE 151 11 6 1 Configurable parameters in standard mode ssssseessessserssrrssrrssess 152 11 6 2 Configurable parameters in expert mode ssssser
198. ress and port number mapping to achieve the same goals This is equally effective but requires that remote machines wishing to access services on clients via the GSTM server use non standard ports for those services Many people find address mapping with direct port correspondence as described above easier to work with November 2010 167 CMG EAM Platinum Firmware 13 Monitoring Operations This chapter details how to monitor and control the CMG EAM Some functionality is only available from the command line when connected via a serial cable or via SSH over the network see section 2 for details on how to do this and other features are only available via the web interface This chapter will describe both 13 1 Diagnostics and the Summary menu 168 13 1 1 System Status To view the overall system status simply go to the front page of the web interface or choose the System status link in the left hand frame within the Summary box One box is displayed per port or major subsystem Boxes are colour coded and may be displayed in red bad green good or white no information 1 GCF in Port A GCF in Port C Main Status good Status unknown 2010 02 04T10 34 292 2010 02 04T10 35 01Z 2010 02 04T10 34 43Z menu System has been up for Last 5 minutes approximately 24 OUTS 715 blocks 2 4 per second eam2243 a 0 naks 0 0 per second Ta eh ii rhe ieii NTP Removable disk
199. rking with PPP PPP or Point to Point Protocol is a data link protocol that can carry IP packets over a serial link between two networking nodes It can provide connection authentication transmission encryption privacy and compression Platinum firmware includes an implementation of PPP which can be used to provide network links between sites or to connect to an Internet Service Provider ISP A number of chat scripts are provided allowing connection negotiation and establishment over PSTN GPRS and satellite modems 6 6 1 Setting up a PPP Connection To configure a PPP connection you will need a user ID and authentication code the PAP secret as required by the remote server In addition a dial up chat script specific to the service you are using must be created If one does not already exist for your service please contact G ralp support To set up this connection connect to the CMG EAM configuration system via either the web interface or by using gconfig from the command line interface From the main screen select Serial ports and select the port to which the modem is connected Change the function of the port to PPP PPP network connection with the correct baud rate for the modem Click Submit to save these changes Go back to the configuration of the serial port and click on PPP network configuration November 2010 69 CMG EAM Platinum Firmware 70 You will see this screen shown i
200. rmware The name of the compressor can be set to a meaningful name for the data that it will handle by populating the User description text field The server can be enabled or disabled at boot up using the Enable check box Data converted by the compressor are written to a ring buffer which is read by both the miniSeed recorder and the SEEDlink transmitter The size of this buffer can be set using the Buffer size text entry field which accepts an integer number of mebibytes The SEED block size is set in the compressor and can not be changed by subsequent software modules This has the important implication that if data are to be transmitted using the SEEDlink server this parameter must be set to 512 bytes The size is controlled by the Block size drop down menu and the possible choices range from 256 bytes to 8K bytes doubling at each step The default value is 4K bytes this is chosen as the optimal for disk recording The rest of the compressor configuration screen concerns channel name mapping Channels Select which channels to compress See help for more details Naming mode Automatic all channels are compressed and named automatically Select how channels are selected for compression and named LW DDDDOO DDDD SOH LW 00 eee fo on ILW DDDDE 4 DDOD HHE LW OA The Naming mode drop down menu offers three choices Automatic all channels are compressed and named automatically This
201. rs of the relevant input module Metadata Metadata is provided by the acquisition software module Any metadata field may be overridden in the configuration of the gdi base module List of channel metadata Return to index Refresh display The Dump Data buttons associated with each channel on the GDI Status display screens like the following GDI Status Channel dump for A830 55TP20 Piease note if this is a status channel there may be little or no data shown here Show meta data Show samples Restart dump New channel ID 868660016 32 bit floating point samples 1 sps AS28 557P20 acquisition device Port instrument id 4830 55TP terminal 4830 55TP sample units cms 72 instrument type accelerometer component 20 New segment ID 80800010 00000000 26005 67 16T11 59 202 New segment ID 86808010 00008081 26005 67 16T12 04 212 New segment ID 8868008180 08008082 2005 67 14T11 32 352 Initial subscription List complete 20059 07 14T11 32 357 B68G80160 80000002 4838 S5STP20 1 32 bit floating point samples 1 sps 8 230495 2009 07 14T11 32 407 00000010 00000002 A830 S5TP20 1 32 bit floating point samples 1 sps 8 028962 2ZO09 O7 14711 32 412 00000010 00000002 A830 S5TP20 1 32 bit floating point samples 1 sps 6 683381 2009 07 14T11 32 427 00000010 00000002 4830 S5TP20 1 32 bit floating point samples 1 sps 078720 2009 07 14T11 32 437 800000160 0
202. rt daemon v Select which GDI multiplexor instance to send data to Home Help Simple Submit Generated at 2010 01 27T15 12 12Z by scs 1 1 8 Portions of output copyright c 2010 Guralp Systems Limited It may sometimes be desirable for debugging purposes to separate log messages for this input from the standard system log The Log file text field can be populated with a path name which will then be used for dedicated logging If left blank logging occurs via the standard Linux syslog facility to var log messages The Log level drop down menu controls the level of detail present in log messages whether to syslog or to a dedicated log file Not all of the standard syslog logging levels are available The menu offers a choice in order of decreasing detail of Debugging information Informational messages Important notices or Warnings The GCF input subsystem keeps its own audit log independent from the system log The contents of this log are available using the GCF Audit Log viewer facility as described in 13 3 2 on page 182 The amount of data retained is controlled by the Audit log size drop down menu whose choices are e 64Kib small November 2010 103 CMG EAM Platinum Firmware 256Kib medium 2MiB large and 16MiB huge It is possible to copy all incoming data verbatim to a network port which can be specified in the Debug port text field This is an advanced debuggi
203. s not used the Output directory text field must be populated with a pathname to the desired storage directory If a directory name is given here and rdisk is used the directory named must be the same as or a subdirectory of the directory managed by rdisk It is sometimes desirable to synchronise the flushing of memory to disk with an external application This can be achieved with the use of a semaphore file the external application writes the file when it is ready to receive data and can remove it in order to inhibit flushing To activate this feature enter the desired semaphore file into the Check file text field The same technique can be used to detect the mount status of removable hardware An arbitrary command can be run immediately prior to flushing the memory to disk This is typically used for mounting external storage devices on say a CMG NAM but could also be used for synchronising operations with an external application If you require to use such a command specify it in the Mount command text field The Unmount command text field fulfils a similar function but is run immediately after flushing Time span held in each ouiput ive Fill threshold Iso Percentage buffer fill that triggers an output flush Directory format 6 j gcfraw Format for creating the output parent directory File name format 1 Y jT H MZ gcf File name format for creating the output files GCF compressor GCF compressor Default instance v Select wh
204. s web interface and selecting the matching baud rate from its control page Note For CMG DAS systems the digitiser s Data out port is connected internally to the CMG EAM module s Port A and both ports must use the same Baud rate The digitiser s Data in port is used to provide a console for the digitiser without interrupting seismic data transmission and is connected internally to the CMG EAM module s Port B Again both ports must use the same Baud rate The digitiser s GPS port is connected to the CMG EAM module s Port C This connection can be used in two ways the CMG EAM module can share with the digitiser the data from the physical GPS receiver and use it as an NTP clock source see section 6 3 on page 64 or alternatively the CMG EAM module can be synchronised to another time source such as Internet NTP and provide NMEA signals to the digitiser module In either case The digitiser module s GPS port and the CMG EAM module s Port C must use the same Baud rate November 2010 87 CMG EAM Platinum Firmware The final section of the digitiser control web page is entitled Miscellaneous features This section displays a warning in red if a discrepancy is detected between the EAM s time and the digitiser s own clock If the two clocks have reasonable synchronisation this message is suppressed A typical warning looks like this Digitiser clock is displaced by more
205. s will allow password less root access to the system from that machine Client keys which have been uploaded are displayed in the Authorised client keys section Any existing authorised keys can be removed Select the check box next to the key you wish to remove and click Remove selected keys Note password less login via ssh v2 is perhaps counter intuitively the most secure way to access your CMG EAM There is a useful discussion of the ssh protocol and full details of its usage at the site http tinyurl com whyssh 68 Issue C Operator s Guide Note Systems are shipped with a pre authorised client key to which G ralp Systems support staff have the matching key This allows us to access you unit and reset the root password should you forget it You are free to delete this key if you wish There is a second and significantly more complicated way of resetting the root password if you have physical access to the system Please contact support if you find yourself in this situation 6 5 2 Configuring sshd from the command line This is a complex issue and use of the web interface is strongly encouraged unless you are familiar with Linux text editors configuration files and sshd itself The configuration file is located at etc ssh sshd config and its syntax and semantics are described at http man wiki net index php 5 sshd_config More detailed discussion is beyond the scope of this document 6 6 Wo
206. se a security problem on your network You will now be prompted for a login name the default is root type this at the prompt and hit lt enter gt You will next be prompted for a password the default password is rootme Note that no characters will be echoed to the screen as you type the password A 10 99 1 5 PuTTY login asi root root 1i0 99 1 5 s password k P Once connected you will be presented with a shell prompt which is ready to accept commands The shell prompt contains the CMG EAM s serial number When you are finished with your SSH session and want to disconnect type exit at the command line or a Di Note If you plan to use ssh regularly to communicate with a CMG EAM you can configure the system to bypass the password prompt from a list of pre authorised computer user combinations This involves generating a unique key pair for the user and PC which will access the CMG EAM and then copying the public half of the key pair to the CMG EAM This is implemented using the PuTTYgen and Pageant programs see section 6 5 on page 67 and the help facility within PuTTY for more information 2 3 Changing the password Access to a Platinum system is password protected As shipped the user name is root and the password is rootme The same password is used for both login and web authorisation In the majority of cases there is no need to alter the password from the default setting 24 Issu
207. seconds to pre heat and power up the drive Be prepared for short delays when using some of the following commands Before data can be retrieved from the removable drive it must first be brought to operating temperature powered up and the relevant file systems mounted A utility rdisk is provided to accomplish this When invoked without arguments rdisk displays a menu Select action to perform Mount a filesystem for shell session format Format and partition a disk show Show filesystems and programs using them power Power up disks for shell session lt CanceL gt Issue C Operator s Guide The mount option which can be selected with the PW key displays a menu of available file systems on removable media When you choose your desired file system it is mounted under media and you will be told the exact mount point and then presented with a command prompt This is a sub shell the file system will remain mounted and the disk will remain powered up until you exist the shell with the exit command or by keying faga D The format option which can be selected with the key prepares a drive for use as described in section 10 1 on page 107 The show option which can be selected with the S key lists all available removable drives together with their file system type size free space and date of earliest entry When using shell scripts all of these menu functions can be acce
208. seneesensereserserssrrserssessersees 93 8 5 Configuring NMEA as an NTP clock SOUTCe essssnsssssesessssrerssserrrssersserssers 93 86 GOMES NMEA GUDU a jstrsocstioassaecorsad aerattlvaatnacicaeat aise ramaiacaiaseaulnnauiaeaians 94 November 2010 3 CMG EAM Platinum Firmware D RECEIVING Tal Aecacccesnncenacenkecaseiencavincdsainctpaveuddncwantesensncsunsseireauens coaueteenane secant escsbosswcids 97 9 1 GCF Irom Serial Ce VICe Sessie a N 97 9 2 BRP GCF From Network DeViceS cccccccccssssssccccceesescccceesceaeseaesseaenees 101 9 2 1 Configurable parameters in standard MOE cccceeccsseceeeeeeeneeeeeees 102 9 2 2 Configurable parameters in expert MOE cceccceeececeeeeeeeseeeseeaees 103 9 3 Data irom Scream SERV CPS stesntsscsusaenenciesecareiaanel a aa 104 10 Recording and Retrieving Data s sssssssssesssecosssecosssscsssssosssecosssccoseseessseeosses 107 10 1 Preparing removable Cri VES vciscswictsceragenieestia A N TA a 107 10 2 Recoraine dal Feeries a E E 109 10 2 1 Configurable parameters in standard mode sesseessessserssrrssrrssess 110 10 2 2 Configurable parameters in expert mode ssssseessserssesssrsssrrsrresersss 112 10 2 3 File name escape sequences sssseseesserrsserrsssrrresserrsssressereesserressees 115 10 3 RELIG vine dil eria T O E A 117 10 3 1 Retrieving data from the removable Crive cccceeeeececeeceeeeeeneeeees 117 10 3 2 Reading the
209. set the Peer name this should match the server name configured on the the Remote host this is the DNS name or IP address of the GDI link client the Remote service port the default is 1566 but if you have configured a different port on the GDI link client you should enter the same port here e Enable at startup this check box controls whether 12 1 1 1 Additional options available in expert mode The following additional options appear when in Expert mode November 2010 157 CMG EAM Platinum Firmware 158 Advanced options Log file Path to log file Leave blank to use syslog Log level Important notices v Minimum severity level of messages to record in log GDI multiplexor Default data transport daemon Select which GDI multiplexor instance to compress data from Home Help Simple Submit _ Generated at 1970 01 06T20 12 462 by scs 2 9 9 Portions of output copyright c 1970 Guralp Systems Limited When you have entered all the required information press Submit 12 1 2 The GDI link receiver To configure a GDI link receiver connect to the CMG EAM configuration system via either the web interface select All options or by using gconfig from the command line interface From the main screen select services then GDI link receiver The next screen shows a list of all GDI link receiver instances that have been configured on the CMG EAM Home Confi
210. smitting next block milliseconds Mode Direct simple transmission with link error correction but no backfill Block transmission mode Output filtering This section allows you to choose whether to transmit all GCF blocks as they are received from the GCF convertor or only a subset Output type All blocks Jv Select which types of block to transmit Max sample rate samples per second If filtering by sample rate the maximum sample rate to send If filtering by channel name the channels to be transmitted should be entered below The exact name of the channel must be given in the format SYSID STRID The ACK NAK timeout text field should be populated with an integer value which specifies the number of milliseconds the server should wait for an acknowledgement packet before transmitting the next block The Mode drop down menu controls the BRP transmission mode of the server At present the only available choice is Direct simple transmission with link error correction but no backfill Future implementations will offer additional options The Output filtering section allows the operator to control which data are transmitted selecting by block type sample rate or channel name The Output type drop down menu offers a choice of All blocks filtering by block type is disabled e Only status blocks no data blocks are transmitted Issue C Operator s Guide Only blocks below a cer
211. ssed by passing the function name as an argument to rdisk For example eam999 rdisk show performs the same function as selecting show from the rdisk menu Once the disk is powered up and the relevant file system mounted the recorded files can be browsed with standard Linux shell commands such as cd and 1s They can be copied to a remote PC using the network or over the serial port as described in section 10 3 1 3 on page 124 To copy files over the network the use of scp or rsync is recommended The scp program is most convenient to use and can copy single files or recursively copy directories The rsync program is more complicated but is ideal when a remote copy of the data is to be updated regularly since it minimises the traffic over the network by only copying new or changed files For Linux users scp is installed by default or available as an optional package in most distributions Consult your operating system documentation for more details For Windows users the WinSCP package is recommended this has the additional benefit of providing a graphical explorer like interface for browsing files on the CMG EAM WinSCP can be downloaded for free from http winscp net The screen grab below shows a complete session recorded from a Linux PC The operator connects to a CMG EAM powers up the disks November 2010 121 CMG EAM Platinum Firmware 122 downloads all recorded files powers down the disks and then d
212. ssserssesssesssresrreseress 154 12 Buildin NElWOrK Sice ORETTE N 155 PE GDI I cco facade a E A nes oeestdegauinasones 155 12 LT The CGDHINK Tans mitler menos in NE 155 122 Tes DU Mik TECEN CL oiia e a E T A AEA ONNE 158 12 2 G ralp Secure TCP Mu l plexer is scipisscagatettivarticuctivon aie uaa 161 1221 PThEGS TM CHOI acesi tte amen es erent eer eee nee eee 161 222 TEGSTM SEVO ra NE 164 4 Issue C Operator s Guide 13 Monitoring Operations asiria eseina aa CEEE a EEEE Eaa ENANS 168 13 1 Diagnostics and the Summary Menu esssesssseessssrrrsssrrrssrressersserseresreserss 168 Tye HOY STII CAUUS aa E A E E a a 168 VS A Ee a OP A E E T A E E E es 169 ekl Micomine Dalari E E teened teainn a ieaeeeetsaaniads 170 13 14 Version and Serial Numbers nimcasrei ioin E 171 132 The COME ON MoN pica iiacedartatsescteciiaa wos a a 171 13 2 1 Digital I O power control and anti tamper monitoring 006 171 T322 Dieitiser Sensor Conio basisir A ET 173 T2 REDO OUIING noni a E NO NONG 181 2A OCV CO Sena E abic ae bias ae eageeaeeenes 181 13 22 59 RAID A fray DCT VIC CS areae a ATE beens pnananonimatelds 182 PTOS NG N oana E T E ena 182 V3 5071 ASSWOP GO Soait a A e saa eedaneneeazanclas 182 TS 3n2 AGG AUAI LOS VIEW rnn en E A E NN 182 13 33 GDIGhannels Display scsiiesgctes picahcerenes teachah dus eahcin ced einel uaa eens acim 185 14 Append iCES rii n E ETE TT E EN 189 14 1 Setting the System Identity Hostname ssssessesssssees
213. sssrresersereserserssreserss 189 142 FNULMEDLICALCG Dic SOT Serani caw or iuaws ee ah view ances EE E N sue uuenagreaene 190 14 2 1 Internal CONMCCUONS soccnaicssyessescesssteeeheeaassenatenasnaatemotewnantteus exter vaesed eves 191 1422 Vanaple Gain AO US parca volo na atlas ic A seuemueitteas 193 il ever USB OPETI UOM an rer en ree eon Cr rere sre tere Tne er rrr errant tT E ter rr ere 196 14 3 Connector PIN OUlS nigina n n ream arietinum 198 143 1 Peli Gase2 POR Sie BG anane esas satecncsuelas too aaednevesuewesdsuce 198 14 3 2 Peli cases DA TA OUT DOM arueraa EE O ET 199 14333 Pelas US Berra e wasumanueh vinaudcneuiueameetavaweniensle 200 143 4 Pel case NETWORK cennera a T iarcattevadavenees 201 143o Pel Gase Consolo oreca a ne 202 TEJO Cyder GPIO eanan Ea A A EON 203 DAB Cy AAEE GS era E E E E uments 204 14e Gyud US Dasirenaie aena a 205 1439 Cyr POWO angnin E N TN 206 t4310 Cy Hindot UNCP hoeirenonens a na a n a 207 PA BAD GV er Dataa ives tetaiase suaesetaaun cus aeaieaeeeoa ees 208 14 3 1 2 CylinGer SENS OR A amp D iraa i e r N 209 14 93 13 Cylinder Auxillary INPUl eseina isnan in EE AINEEN 210 TEU nE NICOT ae aE E A NAE 211 15 Revision MstOrV oino E T 214 November 2010 5 CMG EAM Platinum Firmware 1 Introduction The CMG EAM Embedded Acquisition Module is a versatile module intended to integrate one or more seismic sensors with various communications systems It can also act as a stand alone data recorder or as a c
214. st such as a laptop e External USB drive on mil spec connector data will be stored on external media which should be attached to the USB connector The rdisk daemon handles the required operations for mounting and un mounting the fie system e Internal USB storage for authenticated digitisers only data can be stored on internal USB accessible flash memory It can be retrieved by a USB host such as a laptop connected via the GPIO connector See section 14 2 3 1 on page 196 for more details e Ring buffer on flash module some systems are equipped with an external flash module to extend the 110 Issue C Operator s Guide storage capacity beyond that available on the normal file system Data written here are accessible via the web interface or from the command line under the path media flash_ module e Record files under var spool recdata this is the only option on CMG NAMs and CMG NAM64s and it is not available on other platforms Data are written directly to the internal hard drive and are accessible via the web interface or from the command line under the path var spool recdata 10 2 1 1 GCFraw Options GCFraw is the native recording format of Platinum firmware It can be read directly by Scream and other GSL software packages are available for converting it into other formats GCFraw recording These parameters control the recording of raw GCF packets Disable GCF recording O Dis
215. st of currently configured compressors Issue C Operator s Guide 11 4 Guralp Seismic Monitoring System GSMS is a protocol designed by G ralp Systems to send real time low latency strong motion data To configure a GSMS server from the web interface select System services from the Configuration All options menu or select the Services short cut from the Data transfer recording menu To configure a GSMS server from the command line start gconfig and select System services from the top level menu Now select gsms out GSMS sender from the System Services menu The next screen shows a list of all GCF Scream server instances that have been configured Home Confiquration Services gsms out GSMS sender instance selection e Create new service instance k Home Helt Expert Generated at 1970 01 07T18 02 13Z by scs 2 0 9 Portions of output copyright c 1970 Guralp Systems Limited You can reconfigure any existing service by clicking on its menu entry To configure a new GSMS server select Create service instance The following screen allows you to configure the parameters of the server 11 4 1 Configurable parameters in standard mode The name of the server should be set to a meaningful name for the data that it will serve by populating the User description text field The optional User Label text field can be filled in with a name which will then be used to
216. storage The CMG NAM is intended for use in a data centre and consumes more power than the CMG EAM which was designed specifically to be a low power device The CMG DAS range of products combine the flagship CMG DM24 fax analogue to digital converter with fa the communications storage and wa protocol flexibility of the CMG ey EAM in a single package sa They are available in numerous packages including Peli case steel or aluminium tubes and sensor top versions All of these units are Linux based devices but no Linux knowledge is required The use of Linux provides a high degree of flexibility additional functionality can often be added on request contact G ralp Systems for further information November 2010 7 CMG EAM Platinum Firmware 1 1 A Note on Terminology G ralp Systems Ltd are aware that various common technical terms have acquired subtly different meanings for different audiences The following terms are used consistently within this document and are intended to have the meanings given below 1 1 1 Sensor By sensor accelerometer An example of a sensor is the CMG 3T true broadband seismometer depicted on the right in we mean a seismometer or velocimeter or other transducing instrument e g geophone or hydrophone with analogue outputs i e where a continuously varying voltage is used to represent the magnitude of the quantity being measured standard configuration
217. sync quralp com eam2010 If you are using DHCP it is advisable to correct this problem by reconfiguring the DHCP server to supply the correct name server details If you are using static addressing enter the address of a suitable DNS server in the Nameserver field of the network interface configuration form only available in expert mode See section 6 1 2 no page 58 for more details Once the network has been checked you can proceed to upgrade the unit by following the instructions in section 4 3 on page 49 4 2 2 Upgrading from a local mirror Setting up a mirror involves three steps Downloading the mirror content e Setting up a local rsync server and Configuring the client EAMs to use the new server 42 Issue C Operator s Guide The procedure differs depending on the operating system of the local mirror server 4 2 2 1 Instructions for Linux Unix computers Downloading the mirror content The mirror can occupy a significant amount of disk space depending on the which architectures you need to support See the sections for each architecture below for the current space requirements You should pick a disk partition with ample space in which to store your own copy In order to simplify the download we recommend that you start with an empty directory each time If you wish to make a fresh copy after a new firmware release it is much easier to create this in an empty directory than to update an exist
218. sync protocol which uses an elegant and efficient algorithm to effectively transfer only the differences between revisions even within individual files This significantly reduces the time required compared to traditional upgrade methods 4 1 Determining the current firmware level 40 From the web interface select Version and serial numbers from the Summary section of the left hand pane menu Main menu eam2243 System status Version and serial numbers CD1 1 log analyser Environment logs Firmware GCF audit log viewer GDI channels display Passwords Removable disk Tools Configuration All options Hostname E marra IO anctawn Home Summary Versions EAM Version information Software repository label platinum stable Software build number 3012 Hardware versions EAM serial 2243 EAM version D CPU module serial 00 01 c0 05 43 ch CPU module version CM X270L D64 F4 C312 N512 E R TE CPLD version Manufacturing log Factory conf 2009 11 19 10 52 CPU module manufacturing log Manufacturing log 15 Feb 2009 L644312051201 10001 500 ETH MAC 00 01 c0 05 43 cb NAND flash cylinder count 0 CPLD rev 1 3 Issue C Operator s Guide The same information can be obtained at the command line by using gconfig and selecting Version and serial number information If you just want quick access to the software build number this is contained in th
219. t System services from the top level menu Now select gcf out scream from the System Services menu The next screen shows a list of all GCF Scream server instances that have been configured Home Configuration Services qcf out scream GCF Scream network server instance selection Select the GCF Scream network server instance you wish to configure Scream server GCF network sender starts automaticall Create new service instance Home Generated at 1970 01 07T15 41 052 by scs 2 9 9 Portions of output copyright c 1970 Guralp Systems Limited You can reconfigure any existing service by clicking on its menu entry To configure a new GCF Scream server instance select Create new service instance The following screen allows you to configure the parameters of the service It is a large form and is shown here in parts November 2010 133 CMG EAM Platinum Firmware 11 2 1 Configurable parameters in standard mode Home gt Configuration gt Services gt gcf out scream default Scream server configuration User description Scream server GCF network sender User label for this Scream server instance Server hostname IP fo address The hostname or IP address the server socket will bind to Leave empty for all Server port service scream name The TCP and UDP port number or service name to listen on Terminal mode Disable terminal access C Check this to disab
220. t location Issue C Operator s Guide n S SY jJTZHEMZ 3s c n 31 mseed will store the data like this NN TEST1 2008315T1442Z TEST1 BHE NN LL mseed 2008315T1452Z TEST1 BHE NN LL mseed 2008315T1502Z TEST1 BHE NN LL mseed NN TEST2 2008315T1442Z TEST2 BHE NN LL mseed 2008315T1452Z TEST2 BHE NN LL mseed 2008315T1502Z TEST2 BHE NN LL mseed 10 3 Retrieving data Data are recorded first to a buffer held in flash memory When the buffer utilisation exceeds a configurable percentage a process is triggered to flush the data to the hard drive In low power applications the hard drive will normally be powered down and so must be powered up and mounted before use It is then dismounted and powered down once the flush is complete If you wish to work with data on the removable drive it must first be powered up This is done automatically when using the web interface but must be done manually when working from the command line If you wish to work with recent data a manual flush should first be performed in order to move the data from the buffer memory to the drive 10 3 1 Retrieving data from the removable drive 10 3 1 Downloading over a network using the web interface Note It can take several seconds to pre heat and power up the drive Be prepared for short delays when using some of the following commands To retrieve data from the removable drive using the web interface select Removable disk
221. tag to use for the VLAN four digit decimal number Description Newly created VLAN interface User description of the interface Enable interface G Allow the interface to be used Startup enable v Start the interface at system startup Configuration method DHCP Dynamic Host Configuration Protocol w Determines how the interface parameters are discovered and set Issue C Operator s Guide 6 2 1 Configurable parameters in standard mode The Hosting Interface drop down menu is populated with a list of the physical interfaces present on the system Select the physical interface over which you wish this virtual interface s traffic to flow The VLAN tag text field should be populated with the required VLAN tag This identifies packets sent over this interface as belonging to the specified VLAN The Description text field can be edited to provide a more useful name for the interface The Enable interface check box can be ticked in order to enable the interface or cleared in order to disable it No other configuration settings are changed when the interface is disabled allowing use of the interface to be suspended without deleting the configuration The Startup enable check box controls whether the interface is enabled automatically when the unit boots The Configuration method drop down menu offers the following choices Static The interface will take its address and routing parameters from values entered b
222. tain sample rate the threshold sample rate is specified in the following text field and Only blocks matching a list of channel names offering the highest granularity of control If the previous field is set to Only blocks below a certain sample rate the Max sample rate text field is used to specify the threshold above which data are not transmitted If the Output type field is set to Only blocks matching a list of channel names the channel names must be specified in the following table Home Help Expert Submit Generated at 1970 01 07T15 33 372 by scs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited Channel should be specified by giving their system ID and their stream ID separated by a hyphen Existing entries may be deleted by ticking the associated check box and submitting the form If the form is submitted when the table is full extra blank lines are appended 11 1 2 Configurable parameters in expert mode The following additional configuration parameters are available by clicking the Expert button at the bottom of the form It may sometimes be desirable for debugging purposes to separate log messages for this transmitter from the standard system log The Log file text field can be populated with a path name which will then be used for dedicated logging If left blank logging occurs via the standard Linux syslog facility to var log messages November 2010 131
223. tandard mode The User description text field can be used to rename the service in configuration menus to something more indicative of its function Likewise the User label text field can be used to provide a shorter but still potentially more useful name for use in log files The Enable check box when ticked causes this service to statr automatically when the system is re booted If this check box is cleared the service will need to be started manually from the Control Services menu The Delete check box if ticked causes the configuration for this instance to be removed from the system when the form is submitted The Server hostname IP address text field can be used to restrict the server to listen for incoming connection requests only via particular network interfaces If multiple interfaces or addresses are configured for this system entering the IP address or associated hostname of one November 2010 129 CMG EAM Platinum Firmware 130 of them prevents connection attempts made to all other addresses If left blank connection requests will be considered from all interfaces The Server port service name field must be populated with the service name or port number on which it will listen for incoming connections This must not be used by any other service on this system The next section of the form looks like this Protocol parameters ACK NAK timeout 150 ms Time to wait for ACK NAK before tran
224. te new service instance Home Help Ex pert Submit Generated at 1970 01 06T20 04 372 by scs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited In most circumstances you will only need a single GDI link transmitter but this screen allows you to create more if desired November 2010 155 CMG EAM Platinum Firmware 156 To configure the transmitter click on the link corresponding to the required instance You will see the following screen only the top part of which is shown here Home gt Configuration gt Services gt qdi link tx gt default GDI Link Transmitter gdi link tx transmits samples in the native protocol of the Platinum software suite called Guralp Data Interconnect This is a low latency real time transmission protocol which sends encoded state of health with samples System qdi link transmitter description User label for this transmitter module Network settings Client name Used to identify this transmitter to other receivers Leave empty for default oe IP address or host name to listen on Leave empty for default i TE port service Service name or TCP port number to listen on Leave empty for default The description of the instance can be changed if desired This may be useful if you have multiple instances This description is seen when viewing running services or configuring instances It is not seen by the clients Subsequent instances can be enabled or dis
225. ter The menu offers a list of currently configured multiplexers 11 5 Quick Seismic Characteristic Data QSCD is a protocol developed by KIGAM http www kigam re kr eng to send strong motion results which are computed every second To set up a QSCD server on the CMG EAM first configure the relevant strong motion data sources as described in section 7 on page 78 then from the web interface select System services from the Configuration All options menu or select the Services short cut from the Data transfer recording menu To configure a QSCD server from the command line start gconfig and select System services from the top level menu Now select qscd out KIGAM QSCD Quick Seismic Characteristic Data sender from the System Services menu The next screen shows a list of all QSCD server instances that have been configured Home Confiquration Services gt gscd out KIGAM QSCD Quick Seismic Characteristic Data sender instance selection Create new service instance Home net EY OEP SLIM Generated at 1970 01 07T20 20 48Z by scs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited 148 Issue C Operator s Guide You can reconfigure any existing service by clicking on its menu entry To configure a new QSCD server select Create service instance The following screen allows you to configure the parameters of the server As it is a lar
226. th the form itself Many of the configuration forms have two modes simple and expert They display by default only the parameters most likely to be used For example the network interface form mentioned above does not normally display IP aliasing parameters When access is required to these additional features they can be displayed by clicking 28 Issue C Operator s Guide the amp pet button displayed at the bottom of the form They can be hidden again by clicking on the Simpe button In all cases any changes made to the contents of the forms only exist in the browser until they are sent to the CMG EAM using the Submit button User input to the forms can often only be validated after submission Where invalid parameters have been detected this is signalled back to the operator by redrawing the same form with extra text in red added The number of errors is displayed at the top of the form Home Confiquration gt Networking eth0 Network Interface ethO 2 errors found etno Device name Fixed MAC address 00 01 c0 05 43 cb MAC address Fixed Pran rira naku re atar aAA The actual error messages are displayed next to the fields whose contents have offended The following parameters are used only in a static configuration IP address 192 168 0 1 Address in IPv4 or IPv6 format with CIDR format netmask see help Missing CIDR label or netmask length Add trailing nu
227. than 5 minutes from the system clock Plus 7 minutes This section of the page is shown here without the warning Miscellaneous features Transmit Unified Status Packets Recommended Set the digitiser clock from the system clock on next form submission Show full digitiser dialog in future form submissions i Help Refresh display Submit changes Submit amp Reboot digitiser Generated at 2010 02 04T09 20 082 by digitiser config cgi 9 3 9 Portions of output copyright cJ 2010 Guralp Systems Limited The first check box enables the transmission of Unified Status Packets Unified Status Packets are a machine readable representation of the data carried in the normal human readable status streams and allow programs such as Scream to access complete and consistent state of health information regardless of any status stream customisations The second check box allows the one time re synchronisation of the digitiser to the EAM s system clock The third toggles display of the underlying dialogue with the digitiser as described at the beginning of this section Note that as with all web interfaces options selected on this screen will not take effect until the page is submitted Extra buttons at the bottom of this page allow the refreshing of the web page display with up to date information and offer the opportunity to reboot the digitiser Note Some digitiser configuration changes require the digitiser to be rebooted before
228. the Triggering level field in the same row The final section of the triggering configuration screen concerns external triggering and pre and post trigger times Fai pe Ti ad hae J External trigger Enable external trigger input Enable external trigger output Triggered output timings Pre trigger time 10 seconds Post trigger time 20 seconds Return to main settings Add new trigger tap Help Refresh display Submit changes Submit amp Reboot digitiser Generated at 2010 02 03T16 54 222 by digitiser config cgi 0 3 0 Portions of output copyright c 2010 Guralp Systems Limited Full coverage of external triggering is beyond the scope of this manual and the interested reader is referred to the relevant digitiser manual The pre trigger time and post trigger time drop down menus control the amount of data transmitted around each trigger period The options offered range from 5 seconds to 4 minutes The 0 seconds setting disables the feature The Add new trigger tap button inserts and extra row in the decimator output table and returns the display to the main digitiser configuration settings screen The next section of the main display shows and controls the transmission of data from the auxiliary and state of health channels of the digitiser Issue C Operator s Guide Multiplexor channels Inputs M3 through M7 and MB through MF are typically derived by digitising at
229. ther configuration is required The Acquire time from connected digitisers check box tells the system that one or more attached digitisers are to be considered as accurate clock sources For this to work the digitiser must produce RTSTATUS packets CMG CD24 digitisers and digital sensors incorporating them such as the CMG 6TD will do this unconditionally when running firmware version 279 or later CMG DM24 digitisers can have these packets enabled or disabled via November 2010 65 CMG EAM Platinum Firmware software They are automatically enabled if the digitiser is ever configured via the interface in Platinum The Server address table allows a number of Internet or network accessible NTP servers to be listed for use as clock sources You can specify these servers by either IP address or hostname If names are used they must either be listed in the local hosts file etc hosts or resolvable via the Domain Name Service DNS Entries in this table can be deleted by ticking the associated check box and submitting the form 6 3 2 Configurable parameters in expert mode The only difference between standard and expert mode on this screen is the addition of a Server options column to the NTP servers table Home Help Simple Submit This text field can be used to provide additional control over how the NTP daemon uses the server The options are described in the standard ntp conf manual page available on line at http li
230. this SEEDlink server instance Server hostname IP address The hostname or IP address to listen on Leave empty for all Server port servicename seediink The TCP port number or service name to listen on Organization fe Name of organization if blank Guralp Systems Ltd will be used Home Help Expert Submit Generated at 1970 01 06T03 30 332 by scs 2 9 3 Portions of output copyright c 1970 Guralp Systems Limited The name of the server should be set to a meaningful name for the data that it will serve by populating the User description text field The server can be enabled or disabled at boot up using the Enable check box or deleted entirely by selecting the Delete check box To configure the server to listen for incoming data requests only on a specific IP address set this or the associated host name in the Bind host text field By default it will listen on all configured interfaces November 2010 143 CMG EAM Platinum Firmware 144 Set the port port number or service name that you want the server to listen on in the Service Port text field The server identifies itself to clients with an organization name this should be entered into the Organization text field If left blank the value will default to Guralp Systems Ltd Additional configuration parameters are available in expert mode Advanced options Log file Path to log file Leave blank to use syslog
231. u The next screen shows a list of all WIN server instances that have been configured Home Configuration Services win out WIN sender instance selection e Create new service instance Home ne EX pert Submit Generated at 1970 01 07T20 37 032 by scs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited You can reconfigure any existing service by clicking on its menu entry To configure a new WIN sender select Create service instance The following screen allows you to configure the parameters of the sender It is shown here in parts November 2010 151 CMG EAM Platinum Firmware 11 6 1 Configurable parameters in standard mode Home gt Configuration gt Services gt win out gt 0 WIN format transmitter configuration User description WIN sender instance 1 User label for the service instance User label oo Application label za for identification in logs Enable E Enable the transmitter at system startup Delete c Delete this transmitter instance The User description of the service should be set to a meaningful name for the data that it will send The User label can be set to distinguish this instance from others in the log files The sender can be enabled or disabled at boot up using the Enable check box or deleted entirely by selecting the Delete check box The WIN transmitter can be configured to be either a TCP server to multiple clients or a UDP sender to a singl
232. uences 10 2 3 1 Some examples The default 3Y jTSH MZ s c n 1 mseed includes every piece of information possible The date format matches that used by the GCF recorder This will produce file names like 2008315T1442Z TEST1 BHE NN LL mseed To combine all the channels from a given station simply omit the channel marker from the file mame format string SYSJTSHZ3MZ S n 1 mseed It is recommended that the is left in place to highlight the omitted channel id This will produce file names like 2008315T1442Z TEST1 NN LL mseed If you specifically want to include a marker to identify that it contains all channels the use of a lower case string will differentiate it from a regular channel name which is always presented in upper case oie oo YZ jJTSH3MZ s all n 1 mseed yields file names like 2008315T1442Z TEST1 all NN LL mseed If you prefer human readable dates rather than using the Julian date SY tm td SH 3M s Sc 3n 31 mseed yields file names like 2008 08 14 14 42 TEST1 BHE NN LL mseed Note don t use as a date separator as this will split the data into sub directories which is probably not the desired result It is often required to separate the data into sub directories by network and station prefix In this case it is recommended that the network and station id are still included in the file name so that the contents of the file are still recognisable even if it is moved to a differen
233. using white noise The final section of the screen deals with the gimbal mounted sensors deployed in ocean bottom systems which need control of their levelling and orientation functions Where triaxial systems are mounted in a single bowl the Bowl drop down menu should be left at Single bowl Where separate bowls are used for each component the relevant component should first be selected from the menu Ocean Bottom Systems Return to Datum Deploy Level Returns bowl leveller to DEP SES ayaa Level OBS bowl datum position levels the bowl unlocks and centres the masses Bowl Single bowl Bowl Single bowl Run Run Run chan i Unlock OBS Components Lock OBS Components Centre OBS Components Unlock each of the OBS Lock each of the OBS Centre each of the OBS components components components Run Run Run m Recover mAlign bowl Recover OBS system locks the masses and returns bowl leveller to datum Align OBS bowl Bowl Single bowl Run Run Generated at 2010 02 04T11 48 43Z by digitiser control cgi 2 2 0 Portions of output copyright cJ2010 Guralp Systems Ltd 176 Issue C Operator s Guide 13 2 2 2 Digitiser Sensor Control Command line Platinum provides both a high level and a low level interface to connected digitisers The low level interface involves interacting directly with the command lin
234. vity feature would otherwise interrupt it If the link test fails repeatedly the CMG EAM is rebooted The number of failed tests before this happens is controlled by the Reboot fail count field The ppp watchdog service can be started stopped and restarted using the Services page under the Control menu See section 13 2 4 on page 181 6 Configuring TCP to serial converters The CMG EAM can act as a TCP to serial converter effectively transporting data between one or more of its serial ports and a TCP connection There are two different modes of operation as detailed below Any number of serial ports can be configured as TCP converters as long as the TCP port numbers do not clash Serial 1 TCP device J TCPS Seri 5 i client fi converter i fi E fil E Db tumnnnnnnnnnnnnnnnf A 74 Issue C Operator s Guide In Simple server mode the CMG EAM listens for incoming TCP connections and should it receive one that matches its configured rules accepts the connection and begins copying data between the serial port and the TCP connection The CMG EAM can be configured to only listen on particular addresses and ports to only accept connections from certain addresses or blocks of addresses and to reject connections from certain addresses or blocks of addresses In Simple client mode the CMG EAM will connect to an external TCP server on a particular address and port and th
235. w control These settings are not configurable preventing accidental lock out due to inadvertent changing of the port settings The CMG DCM does not have a dedicated console port the DATA OUT port is normally used for console access A combined power and serial cable is provided with both CMG EAMs and CMG DCMs for connection to this port November 2010 15 CMG EAM Platinum Firmware The DATA OUT port can be connected to a serial terminal or PC running either Scream or terminal emulation software The default settings for this port are as follows e 115 200 baud e 8 data bits no parity 1 stop bit 8N1 and e No flow control Note these settings can be changed and indeed the port re configured for a different purpose preventing console access Once you have connected the serial cable you can run a terminal emulator to interact with the CMG EAM Under Windows you are advised to use the terminal emulator shipped with Scream v4 5 although HyperTerminal can be used Under Unix or Linux Miquel van Smoorenburg s minicom terminal emulator more details from http alioth debian org projects minicom is recommended although most terminal emulators can be used An extract from Minicom s user manual is reproduced in Section 14 4 on page 211 Once connected press the lt Enter gt key until you see the login prompt Note If a terminal session has just been closed it can take up to 10 seconds
236. w with the function you want hold the _key while typing EN from now on we will use a Ey to denote this and then the function key a z or A Z By pressing ctrl GA first and then FA a help screen comes up with a short summary of all commands For every menu the following keys can be used UP D 0 DOWN E or LEFT H RIGHT CHOOSE CANCEL The screen is divided into two portions the upper 24 lines are the terminal emulator screen In this window ANSI or VT100 escape sequences are interpreted If there is a line left at the bottom a status line is placed there If this is not possible the status line will be showed every time you press o GA On terminals that have a special status line it will be used if the termcap information is complete and the k flag has been given Possible commands are listed next in alphabetical order wa GA Pressing ctrl GA a second time will just send a w 2 to the remote system If you have ee your escape character to something other than ee ZY this works analogously for that character Toggle Add Linefeed on off If it is on a linefeed is added j before every carriage return displayed on the screen November 2010 211 CMG EAM Platinum Firmware 38 EOG Ho amp amp Gives you a scroll back buffer You can scroll up with i down with D a page up with E a page down with and Page if you have them the e gt a o and f sa Keys can also be us
237. wn probably CMG DM3 4 mk389 Block type data m Sample rate 1 samples second Be Compression 16 bit Number of samples 500 ID ABS0 55TPZP Timestamp 2009 07 13 T 16 18 44 0000000002 Digitiser unknown probably CMG DM24mhk2 99 07 47 6c 16 27 05 228GCF block sent Block type data ater Sample rate 1 samples second g0 81 82 Fa 54 13 3 3 GDI Channels Display It is often useful particularly when configuring a CMG EAM for a complex array to see a list of the Stream IDs or channel names which the CMG EAM is receiving The GDI Channels Display feature allows you to view a list of all active channels together with some additional detail about each To access the GDI Channels Display from the web interface click on GDI Channels Display on the Tools menu Similar information is available from the command line via the command gdi dump with the list only option but the format is optimised for automated processing rather than human consumption Giving the help option provides usage details Use of the web interface however is recommended The following summary screen is displayed November 2010 185 CMG EAM Platinum Firmware GDI Status List of channels Active segments Actions Signed 32 bit integer sample 40 samples second AB30 55TPC2 i Signed 32 bit integer samples A830 D9TPE4 40 samples second Signed 32 bit integer sample 40 samples second Signed 32 bit integer samples
238. work server from the command line start gconfig and select System services from the top level menu Now select gcf out brp from the System Services menu The next screen shows a list of all GCF BRP server instances that have been configured Home Confiquration Services gt gcf out brp GCF BRP network server instance selection Create new service instance Home Generated at 1970 01 07T15 29 11Z by cs 2 9 6 Portions of output copyright c 1970 Guralp Systems Limited Issue C Operator s Guide You can reconfigure any existing service by clicking on its menu entry To configure a new GCF BRP server instance select Create new service instance The following screen allows you to configure the parameters of the service It is a large form and is shown here in parts Home Configuration gt Services gt gcf out brp gt 0 Network BRP server settings User description Gcr BRP network server instance 1 User label for the server instance User label Network BRP out 0 Application label used for identification in logs Enable g Enable this BRP receiver at system startup Delete B Delete this BRP receiver instance Network parameters Server hostname IP address The hostname or IP address the server will bind to Leave empty for all Server port service name 10002 The TCP and UDP port number or service name to listen on 11 1 1 Configurable parameters in s
239. y the operator DHCP Dynamic Host Configuration Protocol The interface will attempt to obtain its address and routing parameters from a DHCP server with a matching VLAN tag Powered off The interface will not be used and the interface chip is disabled reducing the total power consumption by around 200mW The remainder of the screen looks like this Static IP address The following parameters are used only in a static configuration IP address Address in IPv4 or IPv6 format with CIDR format netmask see help Default route gateway The IP address of the gateway router for access to other networks Home Help Expert Submit November 2010 63 CMG EAM Platinum Firmware If DHCP is not being used the IP address text field should be populated with the required address in CIDR format where the address is followed by a slash and then the number of bits defining the netmask e g 192 168 0 1 24 for IPV4 or 2001 db8 32 for IPV6 For more information about CIDR please refer to http en wikipedia org wiki Classless Inter Domain Routing The Default route gateway field should be populated with the IP address of the default router for this VLAN If more complicated routing configurations are required these can be entered in expert mode 6 2 2 Configurable parameters in expert mode A set of additional parameters are available when in expert mode These are identical to the additional parameters on the

MAN-EAM-0001 - Platinum User's Guide

Contents

Download Pdf Manuals

Related Search

Related Contents