Janus Communications Controller User Guide
Contents
1. 2 16 Monitoring oprao 235 221 east estate Aisa Sas eed wad Pew eee ao 17 Monitor operation via the Nanometrics UI 17 Monitor operation via the comms controller monitoring port 17 Viewing the instrument log data 18 Changing the configuration 18 Maintenance 324 88 ce ln See eee eee ee ee 18 Repara AE es Bd DORN i A a Bide A RES OE Oty 18 Connector PINOS yt BN ee oe gen ease ae eit hs area ok es 19 Connector diagrams eas a 44e A Bde Us ess dd 19 Contents PINOULS Stef 2 ot AG da ed a Brace ed 20 Specifications aia ma E dann is a DA ie acd oa ad tes AS ee ees aos ed A Ne 23 Environment Operational 23 Connectors sash ad ae a ob bie owed id A nr A td odes Stee keg 23 POMSi ass arate pad ae aie dd ea 24 PIMING SUDSYStO Missy veoh res tete ah ass bated daa ate bho ata eed 24 NMXDUS cere se dates hd SE dt os al bn dine duo bd da dl aa 25 Janus COMMANGS Li a eee ae he idan dit baton Ae aoe ees 25 WESC ADDIE no to aah aise dele ure Ste Met A dete ethane aisle de Bink 27 Getting Started This section provides introductory information guidelines for checking the complete ness of the shipment and the condition of the shipped items prior to installation and instructions on what to do if there are any problems with th2. Define serial channel s from data sources asso ciated with this Janus SerialChannel gt Apply the changes to the Naqs Server Restart NaqsServer to start using the changes in the configuration 3 1 2 Configure the Janus Note Parameter values are listed on the Janus configuration as shipped sheet Units will have been preconfigured for the network if this was included in the contract otherwise the values are defaults that will need to be rede Configure the Janus via the Nanometrics UI over a TCP IP connection 1 Connect a computer that has the Nanometrics UI installed to the Janus Ethernet port For example use cable 12186 RJ 45 to 4 pin circular via a hub to the Janus or connect directly using a crossover cable Start the Nanometrics UI and log in to the Janus See also the Nanometrics UI The IP address of the Janus is listed on the as shipped configuration sheet This may be a default value if the unit was not preconfigured Configure the Janus Table 3 1 provides an overview of the basic instrument con figuration tasks See the Nanometrics UI and NaqsServer manuals for more detailed configuration information 12 Janus Communications Controller User Guide 14204R2 2003 07 30 Chapter 3 Installation and Operation Table 3 2 Overview of basic Janus configuration tasks Task Description Parameter s gt Define IP connection informa Enter the network IP ad
3. Unpacking the shipment 0 000 ccc tee ee 2 Technical support 2 Technical Overviews cere sut ge nos Sa a Sted eae tied 3 General features 3 Communications control 4 DIMMING EEE A Let NG a ae oe aide A Sr RES A 5 State of health information 5 POS A ae A ete Lutte 5 NMXD S POMS 2452 od ee sn td DEG ee du Ne Laas a Ai 6 DO DOS sas een eos A A ed A AAA eede E IR ne Y 6 Serial port configuration options 6 Serial port availability tcra tee 7 Ethernet POr 2 es Be A A A toe RP hoe 7 External SOH channels 8 Configuration PONS 322 4 stone tacts et AL one R Ada a aka os 8 General installation options 8 Installation and Operation caca a ma tas he Pee ono ee SES ae eee 11 Installing Janus coins a a en ee eee ee eee 11 Configure Nagisa Rens 12 Configure the Janus 12 Install the hardware sg mn a dd to da nue gee ee 14 Install the equipment mounting plate 14 Interconnect the Janus and other instruments 15 Testing the installation
4. configura tion see the related documents listed in section 1 2 1 on page 2 Note Make a backup copy of the CD that is shipped with the system and keep a record of any changes made to the hardware and firmware 3 1 Installing Janus Installing the Janus typically requires adding the Janus and Tridents to the system con figuration setting some parameters for the Janus and installing the hardware This sec tion gives an overview of the basic installation tasks If Janus has been preconfigured for your system as part of the contract the as shipped configuration sheet will list the configured parameter values for the unit Installing the Janus typically will require these tasks gt Add the Janus and associated Tridents to the Nagqs station file gt Create data ringbuffers gt Install the hardware at the remote site Ifthe Janus has not been preconfigured specifically for your system the as shipped configuration sheet will list the default parameter values for the unit Installing the Janus typically will require these tasks gt Add the Janus and associated Tridents to the Nagqs station file Set instrument parameters for the Janus and associated Tridents as required gt Create data ringbuffers gt Install the hardware at the remote site For a typical installation the Janus units are configured at the central site and are then installed in the field although the installation tasks do not have to be pe
5. configuration 1 external RS232 data port used for factory configuration of the TimeServer Available Baud rates up to 57600 B 4 Timing subsystem Table B 4 Timing subsystem specifications Parameter Specification Type UTC timed with digitally controlled VCXO clock disciplined by GPS receiver Time accuracy 20us relative to UTC 24 Janus Communications Controller User Guide 14204R2 2003 07 30 Appendix B Specifications Table B 4 Timing subsystem specifications Continued Parameter Specification Frequency offset without GPS lock 4ppm maximum GPS receiver 12 channel GPS antenna External active 26dB gain minimum GPS antenna cable 15m standard B 5 NMXbus Table B 5 NMXbus specifications Parameter Specification Number of bus connectors Two to permit daisy chaining Multiple seismic channels e Multiple Trident digitisers can share the same NMXbus e Maximum cumulative data throughput using Trident digitis ers 3000 samples per second Bus cable specification Shielded twisted pair Termination Automatic Bus length Maximum 150m subject to sensor power requirements and source voltage see also the Trident User Guide B 6 Janus commands Table B 6 Commands supported Command Description Configuration Get change save the current configuration Software upload Upload n
6. number of framing errors is continuously increasing check if the serial port is configured for the baud rate at which the data source outputs data gt If data are not being received at all then check e Whether the data source outputs data e The connections between the data source and the Janus For a serial connection if data are not being received gt Confirm via the RM 4 user interface that data are being received by the RM 4 If not confirm that the RM 4 serial port settings such as packet length corre spond to settings for the Janus port 3 Ifno retransmission requests are being sent check whether the Janus has been configured with ringbuffers for the appropriate Trident If you have any questions contact Nanometrics support 3 3 Monitoring operation Operation of the Janus can be monitored through the Nanometrics UI or via the comms controller configuration port 3 3 1 Monitor operation via the Nanometrics Ul Options under the Operation tab display information on the instrument state of health serial port data traffic GPS satellite information and instrument log messages See the Nanometrics UI User Guide for more information 3 3 2 Monitor operation via the comms controller monitoring port The comms controller monitoring port is an RS 232 port that can be used for monitor ing the basic operation of the Janus via a terminal emulator reading the COM port of 14204R2 Janus Communications Controller 1 7 2003 07
7. using TCP See also section 2 4 State of health information on page 5 In addition to being transmitted to the central site each NMXP packet is stored in the comms controller memory The memory is a ringbuffer type in which the oldest packet is continuously overwritten by the newest one If the data are not received at the central site by the Naqs data acquisition software a request is generated for retransmission the retransmission request setting is optional On receipt of the retransmission request the communications controller fetches the requested packet from its memory and queues it for transmission A Janus Communications Controller 14204R2 User Guide 2003 07 30 Chapter 2 Technical Overview 2 3 Timing Janus will use bus timing derived either from local GPS data acquired at the remote site or central timing the option is set at the factory In either case timing is provided by the internal TimeServer which is essentially a GPS disciplined clock the TimeServer system time is synchronized to GPS time e With the local timing option the TimeServer uses a built in GPS engine Janus also has an option for local timing using an external GPS See the Janus External GPS Kit supplement if applicable e With the central timing option a central GPS unit is used to acquire and distribute the GPS clock signal to several remote site Januses Janus units equipped with the central timing option accept these clock sign
8. 04R2 User Guide 2003 07 30 Chapter 2 Technical Overview Table 2 1 Serial port configuration options Continued Option Description Serial Receive Receives serial data in any format from a device for transparent relay to the acquisition centre The comms controller packetizes the data as NMXP packets then prepares the packetized data for transmission over either a serial or a UDP IP connection The data are stored in a serial data ringbuffer at the acquisition centre for extraction using Data Playback utilities Interactive Allows you to communicate via a Telnet session with a device that is connected to the serial port typically serial port 1 This would be used for example to manage configuration of the data source device Console Allows you to monitor the comms controller operation Connection to the Janus is via a test cable see also section 3 3 2 on page 17 In this mode information received on the serial port is not transmitted over the network 2 5 2 2 Serial port availability Serial port availability depends on the timing mode for the Janus and typical configu ration of available ports is further determined by the data transport mode Table 2 2 For Janus with local timing having an internal GPS both serial ports can be config ured for either unidirectional or full duplex communication When sending data via serial port one of the ports must be configured as an NMXP trans
9. 30 User Guide Chapter 3 Installation and Operation the computer to which the Janus test cable is connected See Appendix C for informa tion on building a test cable It is a three pin port on the COMMS connector e TX pinL e GND pin U e RX pin V Although the Janus configuration cannot be changed from its monitoring port access ing the unit via this port is a means of finding out the IP addresses configured in Janus and for monitoring basic unit operation The IP address of the Janus is displayed as the unit boots up Configure the terminal emulator for 38400 Baud 8 bits no parity and 1 stop bit 8N1 and no hardware or software handshaking gt To access the port connect the test cable to the COMMS connector of the Janus and the Controller Config connector to the serial port of a computer 3 3 3 Viewing the instrument log data The last 100 log messages for the Janus and its associated instruments are displayed in the Nanometrics UI in the Janus jg gt Operation gt Log panel Older log messages are stored in the Nags log files A new naqs_yyyymmdd log file is created each day in the location defined in the naqs ini file NaqsLog section See also the Naqs Server manual 3 4 Changing the configuration There are a number of configurable parameters for controlling the operation of the Janus and connected instruments The values for these parameters are accessible through the Nanometrics UI user access a
10. Data transmis sion can be via the built in IP option over 10Base T or external options including RF fiber optic and dedicated telephone line Janus provides a high precision timing sub system and rigorous error correction for the data and supplies power to the Trident dig itisers and sensors and optionally to Telesto The Janus contains two main modules the comms controller and the TimeServer These modules communicate through the internal NMXbus A 12 MB ringbuffer is available to store packets for retransmission The user interface provides options for operation monitoring configuration and control and software updates for the Janus and connected instruments see also the Nanometrics UI User Guide Timing is provided by the TimeServer which is essentially a GPS disciplined clock the TimeServer system time is synchronized to GPS time Options for the GPS clock signal source include local timing at the remote site unit and central timing at the net work central site Data ports include two NMXbus ports two serial ports an Ethernet port and three external analog state of health SOH channels Additional ports are available for fac tory configuration of the controller and the TimeServer Figure 2 1 on page 4 is a block diagram of the Janus hardware modules and data ports The Janus communications controller is packaged in a rugged waterproof steel box All of the connectors are on the faceplate 14204R2 2003 07 30 J
11. Janus Communications Controller User Guide Janus Communications Controller User Guide Nanometrics Inc Kanata Ontario Canada 2002 2003 Nanometrics Inc All Rights Reserved Janus Communications Controller User Guide The information in this document has been carefully reviewed and is believed to be reliable Nanometrics Inc reserves the right to make changes at any time without notice to improve the reliability and function of the product No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the prior written permis sion of Nanometrics Inc This product uses the J ava TM 2 Runtime Environment J2RE Standard Edition which includes code licensed from RSA Security Inc Some portions licensed from IBM are available at http oss software ibm com icu4j Nanometrics Inc 250 Herzberg Road Kanata Ontario Canada K2K 2A1 Tel 613 592 6776 Fax 613 592 5929 Email info nanometrics ca Part number 14204R2 Release date 2003 07 30 Contents Getting Started consorte 1 About the Janus Communications Controller 1 Aboutthis User Guide 50 due neue a aan Bal each OAA ee 1 Related documents o 2 As shipped configuration sheet 2 Software reference manual pages 2
12. Janus Communications Controller 14204R2 User Guide 2003 07 30
13. als through the COMMS connector See also the Central GPS manual Time related messages carried on the NMXbus are the time frequency error time error and accuracy Time quality information and GPS status are displayed in the Nan ometrics UI under the Janus ai gt Operation gt Timing tab TimeServer operation configuration and maintenance parameters are displayed in the panels under the TimeServer instrument module tab See also the Nanometrics UI User Guide 2 4 State of health information 2 5 Ports The Janus monitors three configurable analog SOH channels and a number of non configurable fixed instrument SOH parameters The three external analog SOH channels are available for user defined applications See section 2 5 4 on page 8 Of the fixed SOH parameters input supply voltage and internal temperature are derived from internal analog SOH channels The appropriate scale and offset values for these SOH parameters are determined during the final test and are entered into the as shipped configuration file A hard copy of this file is shipped with the Janus The remaining fixed SOH parameters such as time quality and NMXbus transmission statistics are derived from various instrument sources and managed by the comms controller You can manage and view SOH information using various utilities e Select the reporting rate for SOH data to Naqs Report interval and the packet size in the Nanometrics UI under the Confi
14. anus Communications Controller 3 User Guide Chapter 2 Technical Overview Figure 2 1 Janus block diagram GPS TimeServer may be either local or central lt NMXbus serial COMMS controller lt serial gt Ea lt NMXbus Ethernet gt Janus enclosure 2 2 Communications control The comms controller board receives data on the NMXbus ports and the serial ports and prepares the data for transmission over the communications link between the remote site and the acquisition centre A 12 MB ringbuffer is available to store packets for retransmission The comms controller also generates equipment state of health SOH messages this SOH information can be used to simplify network maintenance Data received on the NMXbus and serial ports from Nanometrics digitisers Trident and HRD are in NMXP format At the comms controller the NMXP packets are either embedded into UDP packets for transmission over IP or are sent over a serial connec tion Data received from other devices are converted to NMXP format at the comms controller before being transmitted to the central site over an IP or a serial connection See the Nanometrics Data Formats manual for information on the NMXP data format and transport specific wrapping of packets Data sent over a serial connection are bridged to the Naqs server typically via an RM 4 SOH messages are formatted as NMXP packets and are sent to the Nags server using UDP and to the UI
15. apter 1 Getting Started an introduction to the Janus communications con troller and to this manual guidelines for unpacking the shipment and technical support contact information e Chapter 2 Technical Overview an overview of Janus features and hardware modules and a general overview of installation options e Chapter 3 Installation and Operation installation and operation instructions and maintenance guidelines 14204R2 2003 07 30 Janus Communications Controller 1 User Guide Chapter 1 Getting Started e Appendices e Appendix A Connector Pinouts e Appendix B Specifications e Appendix C Test Cable 1 2 1 Related documents Related documents include configuration sheets specific to the equipment in your ship ment and general product documentation 1 2 1 1 As shipped configuration sheet The as shipped configuration sheet lists the serial numbers of the parts shipped the hardware configuration IP address for the unit and any calibration parameters associ ated with the hardware The configuration described on the configuration sheet deter mines how the Janus will operate on the initial startup 1 2 1 2 Software reference manual pages e Nanometrics UI information on monitoring the operation and changing configu ration parameters on an installed Janus and connected instruments e NagsServer information on configuring the data acquisition software e NagsCl
16. ctor pinout Pin Function Tx B Tx Rx Table A 2 Power connector pinout Pin Function BAT B EARTH BAT Table A 3 NMXbus connector pinout Pin Function A Bus voltage positive IN or OUT and bus signals B Bus ground C Connection sense for line termination D Bus cable shield shell Janus chassis ground 2 Janus Communications Controller User Guide 14204R2 2003 07 30 Appendix A Connector Pinouts Table A 4 COMMS connector pinout Function Pin Local timing internal GPS Central timing Local timing external GPS A Digital ground B Analog groundt C External state of health channel 3 D External state of health channel 1 E External temperature sensor F 5 V fused for external temperature sensor G TimeServer configuration port receive GPS 1Hz pulse in H TimeServer configuration port transmit GPS power supply switch out J User serial port 2 receive K User serial port 2 transmit L Comms controller configuration port transmit M User serial port 1 transmit GPS 1Hz pulse in GPS port transmit N User serial port 1 receive GPS messages in GPS port receive P Internal 3V not separately fused Use only to check internal voltage R External state of health channel 2 S Analog ground common to pin B T Digital ground U Digital ground V Comms con
17. d power distribution to NMXbus devices Duplex communications managed by a request grant protocol Do not require configuration Bus voltage 12 to 24V DC nominal 9 to 36V DC Maximum current provided 1A Maximum number of Tridents supported per Janus 3 Trident connection method direct or daisy chained Maximum cumulative data throughput using Trident digitisers 3000 samples per second Maximum bus cable length up to 150m for Trillium and pas sive sensor see also the Trident User Guide NMXbus time provided by the TimeServer User serial port 1 1 external RS232 data port Available Baud rates up to 57600 Can be configured for either transparent full duplex serial or unidirectional typically would be configured for full duplex Not available for Janus with central timing or Janus with exter nal GPS kit User serial port 2 1 external RS232 data port Available Baud rates up to 57600 Can be configured for either transparent full duplex serial or unidirectional typically would be configured for unidirectional if local data buffering is required External state of health Number of channels 3 user defined Data rate 1 sample per minute Sensitivities e Ch 1 2V DC e Ch 2 10V DC e Ch 3 10V DC Ethernet 10Base T port for on site configuration and IP packet forwarding Configuration 1 external RS232 data port used for factory configuration Available Baud rates up to 57600 TimeServer
18. dress of this Janus IP Address tion if applicable Use the gt Enter the IP address for the Naqs computer Nags IP options under the and a second Naqs computer if applicable e Naqs 2 IP Configuration gt Internet tab gt Enter the port number on which the Nags Nags port computer s communicates with instru ments This port number is defined in the nags ini file NetworkInterface section e Nags 2 port gt Enter the IP address for the computer Alert IP receiving alert messages from Nags For example a computer running AlertMailer Enter the port number on which the alert Alert port message destination computer listens for alert messages This port number is defined in the nags ini file AlertSender section See also the AlertMailer manual for informa tion on setting alertmailer ini parameters Enter the IP address and subnet mask for the computer from which Janus will accept commands for example calibration com mands Defaults are 0 0 0 0 determined dynami cally Subnet mask of 255 255 255 255 allows only the specific IP address 255 255 255 0 allows any on the subnet Command source IP Command source submask Enter the port number on which the Janus listens for retransmission requests and commands Default is 0 determined dynamically ReTx request port Define serial data ports if applicable Use the options under the Configuration gt Ports tab See sect
19. e shipment 1 1 About the Janus Communications Controller The Janus Communications Controller Janus relays timestamped error corrected data between the remote site devices and the acquisition centre Janus communications with remote site devices are via either serial or NMXbus connection data transmission to the acquisition centre can be via either IP recommended or serial Transmission options include radio fixed frequency spread spectrum telephone modem fiber optic modem and IP via 10Base T Multicast IP routing allows the Janus to forward contin uous data to multiple acquisition systems simultaneously without requiring additional bandwidth For timing Janus uses an internal TimeServer Options for the GPS clock signal refer ence for the TimeServer include local timing typically the GPS engine is integrated in the Janus unit there is also an option for external GPS and central timing the clock signal from a central site GPS is distributed to several remote Janus units Janus is easy to install and includes a graphical user interface the Nanometrics Ul for configuration and monitoring 1 2 About this User Guide This user guide contains basic procedural information for installing and operating the Janus Communications Controller and general reference information See also related documents listed in section 1 2 1 for detailed information on changing configurations monitoring operation and viewing data e Ch
20. ew firmware Test code Test new code before setting as default Reboot Reboot the Janus 14204R2 2003 07 30 Janus Communications Controller 25 User Guide Appendix B Specifications 2 Janus Communications Controller 14204R2 User Guide 2003 07 30 Test Cable This section contains information for building the optional test and configuration cable 14217 14204R2 Janus Communications Controller 27 2003 07 30 User Guide Appendix C Test Cable Figure C 1 Test and configuration cable Table C 1 Test and configuration cable parts P2 TimeServer config P3 User serial port 2 P4 Controller config Nanometrics part number Manufacturer part number Quantity Description WIRO058 BELDEN 8443 500 3 x 1 5m 22 AWG 3 conductor unshielded CONO0907 SOURIAU 851 06JC14 19P N50 1 Plug straight plug shell 14 19P CONO011 ESONIC AMP DE09 S 3 Dsub 9 pin female Table C 2 Test and configuration cable connector pin wiring From To Wire Run Conn Pin Description Conn Pin Name Colour P1 H TimeServer Config Tx P2 2 Rx green 1 P1 G TimeServer Config Rx P2 3 Tx red 1 P1 T DGND P2 5 Gnd black 1 P1 K User serial port 2 Tx P3 2 Rx green 2 P1 J User serial port 2 Rx P3 3 Tx red 2 P1 A DGND P3 5 Gnd black 2 P1 L Controller config Tx P4 2 Rx green 3 P1 V Controller config Rx P4 3 Tx red 3 P1 U DGND P4 5 Gnd black 3 2
21. ews c Thread screws and washers into the 2 corner holes at the back of the Janus d Tighten all screws to firmly secure the Janus to the mounting plate 4 Ensure that the mounting plate is firmly attached to the structure and that all the hardware holding instruments to the plate is tightened 14 Janus Communications Controller 14204R2 2003 07 30 Chapter 3 Installation and Operation Figure 3 1 Example of equipment mounting plate O O o 1 1 e o o S back of Janus o o Telesto Janus O O A fi A O O front of Janus e f f p A Pa PE LO O we O Me gt Fa 7 fp x Os 4 8X plate mounting holes M List of Hardw are plate mounting Additional equipment Description Quantity Mount the plate mounting holes Aluminum Spacer 14008 6 1 metre above ground Washer M14 6 Washer M5 14 Screw M5 X 16 14 Screw M4 X 16 4 3 1 3 2 Interconnect the Janus and other instruments Caution Forcing the wrong cable onto the NMXbus connector fifi may damage A the unit and connectors Both the NMXbus and Ethernet connectors are 4 pin circular bayonet type but are opposite genders Check the cable type and the gender of the connectors before connecting the cable to the unit All of the connectors are on the front plate of the Janus Figure 3 2 Connect the Janus to the other instruments as required by your system design See section 2 6 on page 8 for a general overview
22. guration gt System gt SOH Report to Nags panel Monitor SOH status in real time in the Nanometrics UI under the Operation tab for the instrument e View and plot current and historical SOH information in detail using NaqsView a Nags Client utility Janus ports include data ports two NMXbus ports two serial ports an Ethernet port and three external analog SOH channels and factory configuration ports The Nano metrics UI provides options to configure some of the port and channel parameters 14204R2 2003 07 30 Janus Communications Controller 5 User Guide Chapter 2 Technical Overview 2 5 1 NMXbus ports The two NMXbus ports are functionally equivalent They provide power time and data communication means for Trident digitisers The NMXbus ports do not require configuration the ports are active when an instrument is connected and automatically terminate the line when necessary The NM Xbus protocol provides error correction for data from the Tridents Up to three Tridents can be connected to the two NMXbus ports on the Janus multiple Tridents can be daisy chained on one NMXbus port Maximum cumulative data throughput using Trident digitisers is 3000 samples per second 2 5 2 Serial ports 2 5 2 1 Janus has two serial ports In general e Each of the available serial ports can be configured via the Nanometrics UI to operate in any of five modes Typical configuration depends on availability of por
23. hardware and then connecting the antenna power and data cables to the unit GPS antenna and power cables and NMXbus cable and connector kits are included with the Janus Install the equipment mounting plate The optional equipment mounting plate kit 13828 contains the plate 13007 and hardware to mount Nanometrics units to the plate It does not include hardware to mount the plate to the wall of the equipment vault or hut 1 Select a means of attaching the mounting plate firmly to the wall of the vault or hut for example directly with self tapping concrete screws or to a plywood sheet that is bolted to the wall This support structure and hardware must be able to bear a load of 28 32kg Note The inner diameter of the spacers 14008 and M14 washers that will need to fit over the plate mounting screws or bolts is 15 2mm 2 Firmly attach the mounting plate not less than 1 metre above the floor of the vault or hut Figure 3 1 e Use the aluminum spacers 14008 between the back of the mounting plate and the structure surface e Use the M14 washers between the head of the mounting screw or bolt and the top of the mounting plate 3 Attach the Janus to the mounting plate using the M5 screws and washers included in the kit a Into 2 equipment mounting holes at the bottom of the plate thread the screws and washers and tighten the screws 2 or 3 turns b Place the Janus slotted mounting holes at the front of the Janus over the 2 scr
24. ient NaqsView Waveform Viewer information on data monitoring state of health and seismic data e Playback description of utilities for retrieving data time series SOH and serial 1 3 Unpacking the shipment Note The information in this section should be used in conjunction with system warranty information Open the shipment and check the contents for completeness against the packing slip There is a configuration sheet containing specific configuration information for each Janus Communications Controller included in the shipment Visually inspect the equip ment for any damage that may have occurred in transit If there are any problems with the shipment please contact Nanometrics Support 1 4 Technical support Read the appropriate sections of this manual and related documents carefully before installing or operating the Janus Communications Controller If you need technical support please submit your request by email or fax Include a full explanation of the problem and supporting data email support nanometrics ca FAX To Support 1 613 592 5929 2 Janus Communications Controller 14204R2 User Guide 2003 07 30 Technical Overview This chapter provides an overview of the Janus features internal modules and instal lation options 2 1 General features The Janus communications controller receives data from NMXbus and serial data devices and prepares data for transmission to the acquisition centre s
25. ion 2 5 2 Serial ports on page 6 for an overview of the options Port Type options and associated parameters gt Define ringbuffers for the data that will be collected via this Janus Use options under the Configuration gt Ringbuffers tab Add ringbuffers as required for time series and serial data channels for example time series data for each channel from Trident data from a serial source Trident SOH The Janus SOH and Log ringbuffers exist by default Ringbuffer panel parameters If you use the Auto Config function to allow assignment of channels gt For IP connect the Trident to the Janus for this task For serial define the ports first gt Set the packet length for SOH report to Naqs Use the option under the Configuration gt System tab Set the packet length in bundles per packet for SOH report to Naqs The length must be the same for all instruments on the subnet e Default is 15 Bundles packet Janus Communications Controller User Guide 14204R2 2003 07 30 13 Chapter 3 Installation and Operation 3 1 3 3 1 3 1 Install the hardware The Janus typically is installed in the remote site equipment vault or hut on the equip ment mounting plate see section 3 1 3 1 or on shelving The weather sealed enclosure allows the Janus to be installed outdoors if required by the site design Hardware installation consists of mounting the Janus on support
26. l Commands from the Nags server can be received via IP or serial Communications with the Nanometrics UI and Telnet sessions with third party devices connected to a serial port are via TCP IP These options are not supported Data as IP in and serial out Commands as serial in and IP out Janus data and command flow options are summarised in Figure 2 2 8 Janus Communications Controller 14204R2 User Guide 2003 07 30 Chapter 2 Technical Overview Figure 2 2 Data and command flow options Supported options lt lt UDP IP Led Serial Commands from Nags NMXbus 7 UDP IP _ gt Data Serial gt F Data ExtSOH Serial via digitiser lt lt TCP IP Nanometrics Ul Janus lt TCP IP Telnet to a serial device Not supported Data IP gt x Serial Data Commands lt lt IP J lt Serial Commands anus Janus can be installed as the direct interface between the data devices and the commu nications infrastructure and can also be used in a repeater station for a radio network The connection to the central site can be via private wire fiber optic cable RF fixed frequency or spread spectrum or a direct Ethernet connection For example some installation options are shown in Figure 2 3 on page 10 For radio networks you can configure the Janus to use a Time Domain Multiple Access TDMA scheme to synchronise the transmission of serial data and commands TDMA time slots are referenced to the GPS timi
27. llows the values to be viewed and technician access allows the values to be modified See the Nanometrics UI User Guide for detailed information on these parameters See also the Nags Server manual for detailed information on defining instruments included in the data acquisition network 3 5 Maintenance The Janus hardware does not require scheduled maintenance New firmware uploads may periodically be available these can be uploaded with the Nanometrics UI via an IP connection See the Nanometrics UI User Guide for more information 3 5 1 Repair If after troubleshooting see section 3 2 Testing the installation on page 16 it is determined that the Janus requires repair send the unit back to Nanometrics If you have any questions contact Nanometrics support 1 Janus Communications Controller 14204R2 User Guide 2003 07 30 Connector Pinouts A 1 Connector diagrams Figure A 1 Janus connectors front face view COMMUNICATIONS SOCKET FEMALE SOURIAU 851 07A14 19S N50 TAA BAT BAT POWER PIN MALE CANNON CA 02L16 10P ETHERNET SOCKET FEMALE SOURIAU 851 07A 8 4S N50 A7 va pe a D a iz si RN IRN ND N N D BUS SUPPLY SHIELD NA NA KE RTN sii ff NO NMXbus PIN MALE SOURIAU 851 07A 8 4P N50 A7 14204R2 2003 07 30 Janus Communications Controller 1 9 User Guide Appendix A Connector Pinouts A 2 Pinouts Table A 1 Ethernet conne
28. mit port e For Janus with local timing having an external GPS serial port 1 is not available For serial data transport port 2 must be configured for NMXP transmit e For Janus with central timing serial port 1 is not available For serial data trans port port 2 must be configured for NMXP transmit Table 2 2 Serial data port options by data transport and timing mode Timing mode Data transport mode Local timing Central timing Internal GPS External GPS port 1 port 1 unavailable port 1 unavailable IP 2 A gt any port 2 any port 2 any po port 1 port 1 unavailable port 1 unavailable any Serial Of 5 NMXP transmit Port 2 NMXP transmit port 2 NMXP transmit port 2 5 3 Ethernet port The Ethernet port supports email SMTP FTP and Telnet Data transport over the link to the acquisition centre uses both UDP IP and TCP IP Nags and alert message desti nation IP addresses are configured in the Naqs stn file 14204R2 2003 07 30 Janus Communications Controller 7 User Guide Chapter 2 Technical Overview Janus supports multicast of data and alert messages Options to either unicast data to one or more data acquisition systems or multicast data to a Nags class address or to all multicast addresses in the network are under the Configuration gt Internet gt Destina tion panel 2 5 4 External SOH channels The three external SOH channels can be used t
29. n lock it may mean that there is not enough GPS satellite coverage over the area at the time the test is being performed 2 Check the Naqs server console to confirm that data are being received and no error messages are reported For an IP connection if data are not being received gt Ping the LAN IP address of the Janus If the ping is not successful then check e That you are pinging the correct IP address the IP address of the LAN inter face of the Janus listed on the configuration sheet 1 Janus Communications Controller 14204R2 User Guide 2003 07 30 Chapter 3 Installation and Operation That the IP address of the computer is in the same subnet as the IP address of the Janus LAN interface e The connections between the Janus and the computer gt Check whether the option Trident W gt Configuation gt Timing gt Require GPS Lock to start is enabled w and the Janus initial GPS lock state is No Lock If so no data will be sent see above gt Check to see whether data packets are being received by Janus from the data source for example whether the number of received good packets is continu ously increasing and the number of bad packets is stable e For the Trident NMXbus transmission status parameters are shown in the Trident Wj gt Operation gt Instrument panel e Fora serial input device transmission status parameters are shown in the Janus gi gt Operation gt Ports panel gt Ifthe
30. ng system and are independent of the data packet structure or flow You can set the packet length to tailor it to the quality of the radio link Packet length must be the same within a network branch that is the network segment connected to a given RM 4 e Usea shorter packet length on noisy or error prone links This reduces the likeli hood of dropping and requiring retransmission of large segments of data e Use a longer packet length on higher quality links This reduces unnecessary packet overhead allowing more efficient use of the available bandwidth 14204R2 2003 07 30 Janus Communications Controller 9 User Guide Chapter 2 Technical Overview Figure 2 3 Examples of installation options Serial _ NMXP Tx to NMXP Rx Telesto Serial over fiber optic to Central timing signal on Port 1 data acquisition centre data and commands on Port 2 GPS antenna power gt supply IP to data acquisition centre NMXbus sensor IP gt Janus with central timing Telesto _ Serial via radio link Serial NMXP Tx to NMXP Rx Serial Serial Receive or Interactive Janus with local timing internal GPS 1 Janus Communications Controller User Guide 14204R2 2003 07 30 Installation and Operation This chapter describes how to install and operate the Janus Communications Control ler For additional information on monitoring operation and changing the
31. o monitor voltages from analog devices for example a meteorological sensor with analog output a vault tamper switch There are two calibration factors that need to be set for an external SOH channel Both the calibration factor and offset parameters are set in the Nanometrics UI in the Configuration gt System gt External SOH Calibration panel e The scale calibration factor is built from two constants One is the sensitivity of the sensor This might be expressed as units per volt For example with a tempera ture sensor this might be set to 44 degrees Celsius per volt The other constant is the actual sensitivity of the ADC which is a factory setting To report the actual voltage on the connector use 0 1 0 5 and 0 5 respectively for SOH channels 1 2 and 3 The offset is used to allow for the sensor not producing zero output volts when reg istering zero sensor measurement units The offset is expressed in units appropriate to the sensor For example for a temperature sensor the offset is expressed in degrees Celsius 2 5 5 Configuration ports The comms controller and TimeServer configuration ports are available for factory configuration The comms controller configuration port can also be used for some oper ation monitoring see section 3 3 2 on page 17 2 6 General installation options Janus supports these data and command options Data input can be via NMXbus and or serial to data output via IP and or seria
32. of installation options To connect Janus to another Nanometrics instrument such as a Cygnus directly via Ethernet use null modem cable 14469 4 pin circular to 4 pin cir cular 14204R2 2003 07 30 Janus Communications Controller 1 5 User Guide Chapter 3 Installation and Operation Figure 3 2 Janus connectors 3 2 Testing the installation 1 Ensure that the Janus gains a GPS lock on startup for proper time stamping of the data The GPS lock state is shown in the Janus 4 gt Operation gt Timing panel e The option Trident W gt Configuation gt Timing gt Require GPS Lock to start is by default set to not enabled _ If the Janus does not gain GPS lock within 15 minutes gt Ifthe initial GPS location is in a different hemisphere from the actual location of the Janus initial location is shown in TimeServer gt Operation gt Tim ing gt Location panel try putting in an approximate location and then use the Reset GPS Location button to set the closer initial location gt Check the placement of the GPS antenna and the antenna cable connections gt Reposition the antenna to a location with better visibility of the sky gt Ensure that the antenna cable is not hanging from the antenna but is secured with the U bracket or a few tie wraps near the antenna to carry the weight of the cable Check whether another GPS will lock to satellites If this GPS receiver also does not gai
33. rformed in this sequence 14204R2 Janus Communications Controller 1 1 2003 07 30 User Guide Chapter 3 Installation and Operation 3 1 1 Configure Naqs For data to be received by a Nags server the Janus and associated Trident digitisers must be included in the Nags station file naqs stn Table 3 1 provides an overview of the basic configuration tasks See the NaqsServer manual for more detailed informa tion such as descriptions of parameters in the naqs stn file sections Table 3 1 Overview of basic Nags configuration tasks Task Description Section type in the naqs stn file gt Add the instruments to the naqs stn file Define Janus as an instrument prototype for the network if it is not already defined Define Trident as an instrument prototype for the network if it is not already defined InstrumentPrototype Add this Janus to Nags Add the Trident s associated with this Janus to Nags Instrument Add the data channels to the naqs stn file Define seismic channel s of the type that willbe ChannelPrototype processed by the digitiser if applicable and if these channel types are not already defined Define seismic channel s from the digitiser Channel associated with this Janus Define serial channel s from data sources asso ciated with this Janus if applicable and if these channel types are not already defined SerialChannelPrototype
34. troller configuration port receive All four serial ports are referenced to digital ground DGND External temperature sensor and SOH are referenced to analog ground AGND 14204R2 2003 07 30 Janus Communications Controller User Guide 2 1 Appendix A Connector Pinouts 22 Janus Communications Controller 14204R2 User Guide 2003 07 30 Specifications B 1 Environment Operational Table B 1 Environment operational specifications Parameter Specification Supply input voltage 12 to 24 V DC nominal 9 to 36V DC Power consumption 3 3 W typical at 24V maximum 4 5W across input voltage range Operating temperature 20 to 55 C Humidity 0 to 100 Packaging Weather sealed enclosure B 2 Connectors Table B 2 Connector specifications Connector Specification Power 3 pin MS connector Ethernet 4 pin MIL bayonet connector female GPS antenna e TNC e Supports a 5V active antenna COMMS e 19 pin MIL bayonet connector female Connector for the two serial ports the two configuration ports and the external state of health channels NMXBus 1 and 2 e 4 pin MIL bayonet connectors male The two connectors are functionally equivalent 14204R2 Janus Communications Controller 23 2003 07 30 User Guide Appendix B Specifications B 3 Ports Table B 3 Port specifications Port Specification NMXbus ports 1 and 2 For data timing an
35. ts and on the data transport mode Serial port configuration options Available serial ports can be configured via the Nanometrics UI to operate in any of five modes or can be set as unused Table 2 1 Basic configuration parameters for all five modes include the serial port name baud rate and port timeout Baud rates include all of the standard rates from 2 4 57 6kbps Additional parameters such as data packet length and TDMA slot definition depend on the mode see also the Nanometrics UI manual In general each of the two ports can be configured for either unidirectional or full duplex communication If both ports are available use the high performance port 2 for high volumes of data If port 1 is available it can be configured for other modes for example for full duplex communication with a remote serial data source Interactive mode Table 2 1 Serial port configuration options Option Description Unused The port is not configured for any mode For port 1 availability depends on the Janus timing mode See section 2 5 2 2 NMXP Receive Receives NMXP data packets typically from a Nanometrics digitiser or possibly from another Nanometrics communications unit and transmits command packets back to the digitiser or unit NMXP Transmit Transmits data in NMXP packets and receives command packets from NagsServer Only one port at a time may be configured in this mode 6 Janus Communications Controller 142
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