User Manual
Contents
1. 59300235 Rev 002 5 4 2007 19 30 Monitoring Status Configuration Levels Transponder SEREEN Spectrum Ingress Repair Log Properties Analog parameter LOLO Deadband Temperature No 54 75 65 20 25 SL AC voltage No 61 73 70 30 27 ra 241 No 24 0 255 250 235 230 02 y 12 No 11 8 135 130 115 11 0 02 v Alarm control Discrete parameter Setting i Motherboard unknown module No Major Detection Disabled Motherboard not powered No Notification e Enabled Transponder intemal error No Major DI Lid open Notification Notification Sec ld CH E Return path 6 dB No Notification Off i s GC Return path off No Notification a Settings changed Notification Notification G Application started No Notification hd Alarm log Figure 9 The Monitoring page The Monitoring page displays all monitored parameters and their values as well as alarm limits statuses and severity settings See Alarms chapter for descriptions of individual AC6951 alarms Analog parameters Each monitored analog parameter of the unit is displayed in the upper half of the frame with following information in the list Analog parameter Name of the monitored parameter Alarm Alarm status of the parameter No HIHI HI LO LOLO Value Current measured value HIHI High major alarm limit HI High minor alarm limit LO Low minor alarm limit LOLO Low major alarm limit Dead2. fields determine the frequency band that the unit scans through when searching for the HEC carrier Scanning can be disabled by setting the start and stop frequencies to the same value Scanning speed can be improved by limiting the scanning range The default and maximum range is 80 155 MHz The scan will start from the last known HEC carrier frequency 59300235 Rev 002 5 4 2007 18 30 The Scan step field sets the frequency increments of the scanning process default and minimum value is 0 1 MHz Changing any of these fields will reset RF modem communication Transmitter The Frequency data field shows the used transmitter frequency commanded by the HEC The Level data field shows the transmitter signal level The range for transmit signal level can be set in the Min level and Max level fields The default and maximum range is 75 100 dBuvV If the HEC commands transponder to use transmit level outside this range nearest allowed value is used and Modem transmit level saturated alarm is activated Changes in these values will not reset RF modem communication and will be taken into use immediately if HEC s ALC is enabled Communication settings The IP address field is used to define the IP address of the unit The address has to be unique and match the HEC s IP subnet settings to ensure proper operation and IP level communication with the HEC If the IP address is set incorrectly
3. The Optical page AC8000 version The Optical page displays information on installed optical modules and allows return transmitter pilot control and backup switching control in AC8000 The page is slightly different in AC500 AC800 and AC1000 viewers Input selection AC8000 When Automatic is selected AC8000 switches to receiver 2 if receiver 1 is not installed or its optical input power is below low alarm limit When receiver 1 optical input power exceeds low alarm limit deadband AC6951 switches back to receiver 1 The alarm limits and deadband can be configured through Monitoring viewer page When Automatic manual restore is selected the backup switching takes place in the same way as described above but AC6951 will not switch back to receiver 1 even if its optical input power is restored The user has to reset the switch back to the main input by manually selecting Manual Rx 1 and after that Automatic manual restore again The active receiver can also be selected manually with Manual Rx 1 2 radio buttons Return transmitters AC8000 When the Return transmitters selection is set to Both transmitters on both optical transmitters are forced to be active regardless of the receiver selection When One transmitter on follows active receiver is selected only one transmitter will be active and it will automatically follow the selected receiver i e receiver 1 selected gt tr
4. e g 0 0 0 0 the transponder can still communicate with the HEC on MAC level but IP traffic i e viewer EMS messages is not possible It is however possible to set the IP remotely through DMM20x viewer The Net mask field defines the corresponding IP subnet It is only needed for broadcast software updates and has to be set according to the HFC subnet of the HEC otherwise it can be left as 255 255 255 255 The MAC address is the unit s unique read only hardware address that is also printed on the front panel sticker of AC6951 Manageable devices in the same HFC network can be divided into different device groups The Device group check boxes can be used to group transponders under multiple HECs For more information consult DMM20x user manual Changing any of these fields will reset RF modem communication Packet statistics The Received field displays the total number of IP packets addressed to and received by this unit The Sent field displays the total number of IP packets sent by this unit The Bad field displays the number of all bad packets received whether addressed to this unit or not and is a good indicator of the forward path condition All statistics field counters has limited range 0 65536 so they will wrap around when maximum number of packets is reached Thus absolute values of counters are not meaningful The Reset button will reset all packet counters to zero
5. 5 4 2007 8 30 Viewer pages Some configuration display viewer pages are always visible some pages are visible only with specific platform module configurations AC6951 viewer pages Status Configuration Optical visible with AC8000 AC800 and AC500 1000 2000 equipped with optical module s Levels Transponder separate pages for CATVisor and HMS transponders SNMP visible with HMS transponder Monitoring Spectrum Ingress visible with platforms supporting return path measurement Repair log Properties Some viewer pages have fields with colored background e g Temperature on Configuration page These colours indicate the alarms related to this field Green means no alarms or notifications red is major alarm yellow is minor alarm and blue is notification 59300235 Rev 002 5 4 2007 9 30 Status ES Configuration Levels Transponder Monitoring Spectrum Ingress Repair Log Properties Status Description ALARM Ingress alarm i Notification Lid open T Hide wamings y E Flag suppression I Hide notifications S Figure 3 The Status page The Status page shows unit s present status and possible alarms flags Each alarm is colour coded according to its severity The severities can be configured through Monitoring viewer page For additional information about alarms see table of module alarm descriptions in the Alarms chapter It is possible to hide the
6. AC6951 HMS can be used remotely with SNMP connection through a HMTS Some of the communication parameters have to be set locally first 59300235 Rev 002 5 4 2007 6 30 Alarms The module alarms also known as flags displayed in CATVisor Commander and EMS are described in the table below The affected LED and factory default severity settings are presented next to each alarm All alarm severities Major Minor Notification Disabled and alarm limits can be fully configured by the user See the Monitoring chapter for more details Note that some alarm limits e g AC voltage optical input power are factory configured so that alarms will only appear when hardware specifications are exceeded The alarm limits should be reconfigured to match network parameters if more accurate monitoring is needed GE 3 S Factory default Alarm text Description amp suggested corrective action LED severity Temperature high Temperature is above high limit Station Major amp Minor Temperature low Temperature is below low limit Station Minor AC voltage high Remote AC supply voltage is above high limit Station Minor Remote AC supply voltage is below low limit As some units are equipped with mains power supply this alarm is AC voltage low disabled as factory default and should be enabled bythe Station Disabled user if AC voltage is to be monitored 24V voltage is a
7. Minor Notification or Disabled The colour of each list entry and the icon next to parameter name indicates alarm status green for nominal value red for major alarm yellow for minor alarm blue for notification grey for disabled alarm 59300235 Rev 002 5 4 2007 21 30 The alarm severity setting is user configurable by double clicking a discrete parameter This will open a dialog box which can be edited by users with at least Service level user rights For others this is read only information IT x Alarm Setting Notification Return path value on Figure 11 The discrete alarm configuration dialog box Alarm control Alarm control frame provides independent on delay and off delay timers The time delay feature can be used to eliminate false alarm triggering due to momentary disturbances An alarm is only active when Detection is enabled and the monitored parameter has been over limit longer than Delay On time Alarm goes off when the parameter has been inside limits longer than Delay Off time The settings on the Alarm control frame can be edited by a user with at least Service level user rights For others this is read only information It is recommended not to change these values from their factory default value 1 s without fully understanding the effects on EMS system performance Alarm log Clicking the Alarm log button on Monitoring page opens alarm log dial
8. and AC8000 have only high pilots and thus no slope control possibility AC500 does not support ALSC thus the page is slightly different Pilot table Each pilot signal is displayed in the table with the following information Pilot name Icon and pilot name colour coding indicates pilot status green for pilot OK red for pilot lost Frequency MHz Pilot signal frequency adjustable in 0 25 MHz steps Type Detector type The measurement detector can be individually selected for each frequency between peak detect Analog and averaging QAM TELESTE User Manual AC6951 59300235 Rev 002 5 4 2007 15 30 ALSC Measured dBuV Measured level of pilot signal Target dBpV Pilot signal target level for ALSC operation Lost level dBuV Limit below which the pilot is considered as lost Usage Usage status of the pilot signal ALSC Standby Not used The pilot signal frequency detector type target level and lost level can be configured by double clicking a row in pilot table This will open a dialog box with pilot s properties that can be edited by users with at least Service level user rights For others this is read only information Apply button is needed after all pilot settings have been configured x Cancel Frequency Type OAM Measured Eea dBy Target 96 5 du Lost level 80 dB Usage ALSC Figure 7 The pilot signal configuration dialog box The ALSC
9. enabled is the master switch of ALSC Automatic Level and Slope Control functionality In addition to this selection ALSC also needs appropriate electrical adjustment module s installed for correct operation ALSC Adjustment ALSC ALSC related alarms enabled module s works Yes Installed Yes Enabled Yes Not installed No ALSC off alarm Other alarms disabled No Installed No ALSC off alarm Other alarms disabled No Not installed No Alarms disabled The data field next to checkbox displays the ALSC status ALSC on green ALSC is enabled and works properly ALSC off blue ALSC is disabled by user Tuner module error red Error in AC6950 s tuner module ALSC disabled ALSC all pilots missing red All pilots are missing ALSC saturated yellow ALSC is saturated adjustments limits reached ALSC on pilot 1 only yellow Upper or lower main and reserve pilots are missing ALSC controls gain only and slope control is frozen ALSC main pilot s missing blue Main pilot s missing ALSC uses reserve pilot s No interstage module grey No interstage module installed All pilots lost action When all pilots are lost AC6951 gives ALSC all pilots missing alarm and operates as selected by All pilots lost action radio buttons 59300235 Rev 002 5 4 2007 16 30 Notice Freeze controls Gain and slope controls will keep the
10. less critical flags by checking the corresponding check box for warnings or notifications Note that these selections only hide flags from this viewer page the device still generates the alarms Use Monitoring viewer page to configure alarm severities 59300235 Rev 002 5 4 2007 10 30 Configuration Status B sch Levels Transponder Monitoring Spectrum Ingress Repair Log Properties Remote power Return path TELESTE POWER SUPPLY AC1000 AMPLIFIER ite f Om r Supply voltages te a6 AC em Yims 2006 346 ac isa ode 12 ug Y CXF065 CXF065 24 EI Y ACem by pass acero weng ft IA SS 28 Ges Sall az servceteminalnotcometed ES Figure 4 The Configuration page AC1000 shown The Configuration page displays a graphical view of the current configuration similar to the actual station layout allows return path ingress switch control and displays measurement data Station layout Most active plug in modules are detected automatically by the transponder They are presented as grey boxes The passive modules and plugs e g fuses cannot be detected automatically These are presented with blue texts Selecting a text tag representing a passive device will open a pull down selection list in which an appropriate device according the assembly can be selected The user can also type in the desired information up to 12 characters 6 characters for fus
11. row and a 5th column which contains the measurement results An example of a result file produced by the above sweep file could be like this MHz Type LoLimit HiLimit dByV 113 00 Q 98 0 103 5 100 5 121 00 Oo 101 99 5 126 25 P 101 133 25 P 95 98 59300235 Rev 002 5 4 2007 26 30 Ingress This page is visible in platforms supporting return path ingress measurement Repair Log Properties Status Configuration Levels Transponder Monitoring Spectrum Bil CG Ref level 60 dew Scale 10 el dB div De sloped view NONE sl dB r Limits M Show Tolerance Return amplifier Start 0 MHz RBW 1 5 MHz Sweep 4 s Stop 70 MHz JACe144 D Analyser settings Redraw V Analyser ON Ingress alarm File gt gt Device Fit view Restart sweep Current sweep file Jingress_test2 Device gt gt Fil Reset view Figure 14 The Ingress page The Ingress viewer page presents return path measurements in a graphical spectrum analyser display when used with AC station supporting return path measurement Up to 100 measurement frequencies with individual PAL QAM selection and alarm warning limits can be specified with a simple text file The measurement results can also be saved back to a text file Display settings When the viewer page is opened the measurement results are retrieved from the device and displayed The display is automatically scaled so that all measured frequ
12. values they had immediately before the pilot signals were lost Goto Gain and slope controls will slowly step to user defined values in the Gain and Slope edit fields The Notice field from Repair log viewer page is shown as read only on the bottom of Levels page allowing the field to be used e g as a reminder for the pilot settings Input stage The input module type is shown on the top of this frame The Gain and Slope fields and up and down buttons can be used to control the level values in 0 2 dB steps when ALSC is disabled When ALSC is enabled it has the control and this field is read only with background colour indicating ALSC status In AC800 equipped with AC6170 input module the slope control is not supported OLC in AC800 In AC800 it is possible to use OLC Optical Level Control if AC6173 module is installed into input module slot There are two radio buttons Manual and From optical input level in the Input stage frame OLC can be enabled by selecting From optical input level It changes Level control field to read only and adjusts input level control based on the optical input level to keep AC800 s internal amplifier input signal level at its optimum value At input levels lt 5 dBm the input level control is 0 dB above this each 1 dBm increase in optical input level causes level control to go down 2 dB For input levels gt O dBm the level control will be 10 dB The level con
13. 0235 Rev 002 5 4 2007 3 30 Hardware Installation 8607012 AC69 soner Celeste _ T MODEM STATION Figure 1 AC6951 transponder front panel 1 USB mini B service port onnector 2 Indicator for modem status 3 Indicator for station status 4 Light sensor To install an AC6951 unit first locate the correct installation position Snap off the segments of the shrouds break away type slot cover and remove the slot cover Insert the unit by pressing it gently into place The unit will fit only in one orientation To carry away the heat from the unit to the housing a silicon elastomer is used with AC6951 transponders After installation carefully attach the silicon elastomer 40 x 20 mm on the cover see figure 2 Be sure that the elastomer adhesive surface faces the cover 8604092 Figure 2 Fitting of the silicon elastomer on the AC1000 cover 59300235 Rev 002 5 4 2007 4 30 Connectors Indicators In AC8000 platform a shroud is attached to the lid to shield the electronics from electromagnetic interference The silicon elastomer must be attached to area provided in the shroud The transponder has an USB service port figure 1 pos 1 connection which can be used for local configuration with a PC and standard USB A lt gt USB mini B 5 pin cable AC6951 transponder will draw power from the USB con
14. 59300235 Rev 002 5 4 2007 1 30 ACcess Series User Manual Teleste Corporation lt e a we a a ee NG M i k A aceon Tuaserowoen Welest b 4 SB zZ e 1 _ we Ca La g s AC6951 AC Platform Transponder 59300235 Rev 002 5 4 2007 2 30 Introduction AC6951 is an element management transponder with forward and return path level measurement and ALSC controller unit for the AC platform AC6951 can be plugged into any AC platform amplifier node equipped with compatible transponder slot The transponder will be later available as HMS compatible version With a simple software update AC6951 can be changed to AC6951 HMS and vice versa Therefore all hardware related information in this manual applies to both CATVisor and HMS versions VERSION INFORMATION this document is based on CATVisor software version 1 1 HMS software version N A Hardware version A Viewer version 1 0 Viewer files AC6951 DLL FnAlarmCtrl DLL FnAlarmDefsAC txt WEEE Notice This product complies with the relevant clauses of the European Ki Directive 2002 96 EC on Waste Electrical and Electronic Equipment WEEE The unit must be recycled or discarded according to applicable local and national regulations SS European Conformity This equipment conforms to all applicable regulations and directives C of European Union which concern it and has gone through relevant conformity assessment procedures 5930
15. All pilots lost action e Freeze controls C Goto Gain 1 0 d Slope 1 0 dB N A AC6170 Gain N CO Up m Notice The 799 25 MHz analogue carrier level is approx 2 dB lower than in the previous amplifier AC2000 Figure 6 The Level control page AC1000 version shown The RF level measurement unit of AC6951 sequentially measures signal levels at user defined frequencies and if enabled also the forward path spectrum and return path ingress frequencies If ALSC adjustments are needed more priority is given to pilot measurements ALSC Automatic Level and Slope Control keeps the output signal level stable irrespective of input signal level variations by adjusting the AC617x gain slope control module s based on the pilots Gain and slope are adjusted slowly in small steps to prevent oscillation in long amplifier cascades If gain or slope is adjusted against the limit AC6951 gives ALSC saturated alarm If high or low main pilot is lost i e its level falls below Lost level AC6951 uses the reserve pilot for ALSC and gives ALSC main pilot s missing alarm AC1000 and AC2000 have both high and low pilots The high pilot controls the gain and the low pilot controls the slope If both high main and high reserve or both low main and low reserve pilots are lost AC6951 gives ALSC on 1 pilot only alarm freezes slope control and controls gain with the remaining pilot AC800
16. OOC CH 40 0 40 0 0 0 0 40 40 40 Comment Another comment The result file format is identical to the sweep file format except that it has a header row and a 5th column which contains the measurement results An example of a result file produced by the above sweep file could be like this MHz 5 00 7 50 10 00 12 50 15 00 HiLimit HIHILimit dByVv 35 0 40 0 48 0 35 0 40 0 49 0 35 0 40 0 44 5 35 0 40 0 44 0 35 0 40 0 29 59 59300235 Rev 002 5 4 2007 29 30 Repair log Status Configuration Levels Transponder Monitoring Spectrum ngess SSES Properties r Repair events Date Repaitcode Namecode _ m Notice max 100 chars The 799 25 MHz analogue carrier level is approx 2 dB lower than in the previous amplifier AC2000 Figure 15 The Repair log page The Repair log page can be used to store information about eventual repair events into the transponder s non volatile memory This information may then be used e g for statistical purposes Repair List Notice The Repair events maintains a brief list of repair notes the user can add with the application The repair list contains 10 of the operator s recently added notes The date of the service can be selected from the pull down list The repair code and the name code can be entered in the edit boxes next to the pull down list Clicking Add adds these notes to the list New item is added to t
17. ansmitter 1 on transmitter 2 off receiver 2 selected gt transmitter 1 off transmitter 2 on If transmitter 2 is not installed transmitter 1 is always active 59300235 Rev 002 5 4 2007 13 30 Receiver modules The type of the receiver module as well as the measured optical input level is displayed in the Receiver modules frame The Active radio button indicates which receiver module is in use Transmitter modules The installed transmitter modules as well as the measured laser currents are shown in the Transmitter modules frame The Transmitter modules frame includes also a Pilot check box that controls whether the transmitter module generates a pilot signal or not The pilot signal frequency 4 5 MHz or 6 5 MHz can be selected with a DIP switch on the transmitter module s front panel 59300235 Rev 002 5 4 2007 14 30 Levels This page is visible with AC platforms equipped with AC6170 AC6173 AC6174 or AC6175 gain slope control module s Transponder Monitoring Spectrum Ingress Repair Log Properties Status Configuration SSRs Pilot name Frequency MHz Type Measured dByp Target du Lost level du Usage High main 610 00 GAM 96 6 96 5 80 ALSC High reserve 799 25 Analog 105 8 105 5 80 Standby Low main 121 00 QAM 89 2 89 0 80 ALSC G Low reserve 175 25 Analog 101 9 101 5 80 Standby Input m Interstage MV ALSC enabled
18. band Specifies how much the measured value has to be on the safe side of alarm limit before turning off the alarm Unit Unit of the measured parameter 59300235 Rev 002 5 4 2007 20 30 The colour of each list entry and the icon next to parameter name indicates alarm status green for nominal value red for major alarm yellow for minor alarm grey for disabled alarm The alarm settings are user configurable by double clicking an analog parameter This will open a dialog box with parameter s alarm limits and deadband that can be edited by users with at least Service level user rights For others this is read only information x Alarm Se Gk Value s G Cancel Enabled HH kl 75 C H Oo Gi of af LOLO TI DIE Deadband ZS Figure 10 The analog alarm configuration dialog box Each alarm limit can be individually enabled disabled and configured The alarm limits should be in decreasing order for correct alarm processing preferably with more than Deadband units between each limit Discrete parameters Each monitored discrete parameter of the unit is displayed in the lower half of the frame with following information in the list Discrete parameter Name of the monitored parameter Alarm Alarm status of the parameter No Notification Minor Major If the alarm is disabled but parameter is in alarming state Yes is shown Setting Alarm severity can be configured to Major
19. bove high limit In AC8000 this alarm is 24V voltage high common for both power supplies Station Minor 24V voltage is below low limit In AC8000 this alarm is 24V voltage low common for both power supplies Station Major 12V voltage high 12V voltage is above high limit Station Minor 12V voltage low 12V voltage is below low limit Station Major Optical receiver 1 power level is above high limit The ae Rx 1 level major alarm is used for controlling the optical receiver s Station Major LED colour Optical receiver 1 power level is below low limit The Optical Rx 1 level major alarm is used for controlling the optical receiver s i f low LED colour This major alarm is also used for backup Station Major switching logic in AC8000 8 Optical receiver 2 power level is above high limit The a Rx 2 level major alarm is used for controlling the optical receiver s Station Major LED colour Optical Rx 2 level Optical receiver ped ae iere Em ow rs Te low major alarm is used for controlling the optical receiver s Station Major LED colour oprea Ven aser Optical transmitter 1 laser current is above high limit Staion Mino Ger Moit aser Optical transmitter 1 laser current is below low limit Station Minor Ge Les SE Optical transmitter 2 laser current is above high limit Station Minor GE Ko aser Optical transmitter 2 laser current is below low limit Station Minor Transponder is not able recognize other module s Unknown module Possible reason i
20. can start 80 0 MHz MAC address 00905001E876 Scan stop 155 0 MHz m Device group Scanstep 0 1 MHz IM 2M 3M AM r Transmitter 5M eM 7M 8M Frequency 13 7 MHz Level Eer dBp r Packet statistics _ Min level 75 dBpy Received 24 Bad 0 Max level 100 dBu Sent 23 Reset Figure 8 The Transponder CATVisor page The Transponder page displays all the data and settings of the transponder s RF modem and remote communication After reset the unit starts searching for HEC headend controller e g DMM201 carrier within the transponder s tuning range and starts communicating The HEC will then set communication parameters such as transmitter frequency and transmitter level Connection status The current communication status between the transponder and HEC is shown in the Connection status field with Scanning yellow searching for the HEC carrier wave Data carrier found yellow waiting for communication parameters Registering yellow registration in progress Connected green registration complete communication OK The number in parenthesis is a more detailed status indicator for diagnostics purposes ranging from 0 to 11 Receiver The Frequency data field shows the used receiver frequency The Level data field shows the measured signal level The Scan start and Scan stop
21. downloaded to the device This name is derived from the first 15 characters of the file name The File gt gt Device and Device gt gt File buttons open a file dialog for transferring a sweep result file to from the device Sweep and result file formats The sweep file is a simple text file than can be edited with any text editor and most spreadsheet applications Each line in the sweep file defines one measurement frequency preferably in ascending order Each line has 2 4 fields separated with tab characters and dot as the decimal separator 1 The measurement frequency in multiples of 0 25 MHz 2 The detector mode as P or PAL for peak detection of return path payload signals or Q or QAM for averaging measurement of return path ingress noise Detector mode designation is not case sensitive 3 Optional warning limit in multiples of 0 5 dBuV 4 Optional alarm limit is in multiples of 0 5 dBuV Comments can be inserted at the end of the line preceded with a tab character or on a separate row which starts with a non numeric character Comments are for information only and will not be downloaded into the device and so they are lost if result table is uploaded back from device TELESTE User Manual AC6951 59300235 Rev 002 5 4 2007 28 30 An example of a valid sweep file Measures return path lowest frequencies 5 00 7 50 10 00 12 50 15 00 O O O O O Ww ol CO OO C
22. e specified with a simple text file The measurement results can also be saved back to a text file Display settings When the viewer page is opened the measurement results are retrieved from the device and displayed The display is automatically scaled so that all measured frequencies are visible and the level scale is set to 10 dB div The display can then be zoomed or re centered by entering new values into start and stop frequency reference level and scale dialogs and clicking Redraw button The Fit view button scales the display so that all measurement frequencies are visible Reset view button restores full scale display The RBW resolution bandwidth is fixed to 1 5 MHz by the hardware The Sweep field displays the last elapsed time it took to scan through the complete set of measurement frequencies The De sloped view drop down box can be used to simulate a view of a flat frequency response by reducing the level at the high end of the amplifier s response Signal level at 862 MHz is displayed with the attenuation specified in De sloped view signal level at 47 MHz is not affected at all and attenuation of the frequencies between these two are calculated using a standard coaxial cable model The De sloped view function acts only as a visual aid for making adjustments and does not affect device operation in any way If the graphical display is clicked with mouse the frequency measured level detector mode a
23. encies are visible and the level scale is set to 10 dB div The display can then be zoomed or re centered by entering new values into start and stop frequency reference level and scale dialogs and clicking Redraw button The Fit view button scales the display so that all measurement frequencies are visible Reset view button restores full scale display The RBW Resolution BandWidth is fixed to 1 5 MHz by the hardware Note that due to the roll off of the RBW filter a payload free area is needed if noise levels need to be measured The Sweep field displays the last elapsed time it took to scan through the complete set of measurement frequencies If the graphical display is clicked with mouse the frequency measured level detector mode and possible alarm warning limit values of the clicked measurement are displayed next to the clicked point Return amplifier selection and ingress switch Correct return amplifier type must be selected in the Return amplifier drop down in order to get correct measurement results AC6951 then adjusts the measurements results to compensate for the different gain of different return amplifier types Some return amplifier types are not supported 59300235 Rev 002 5 4 2007 27 30 Limits Note that the ingress switch position is not taken into account in ingress measurement Thus selecting 6 dB ingress switch will result in 6 dB decrease in measured ingress levels The Limits gr
24. es These passive devices do not have any monitoring or control parameters and the information entered in these fields does not affect unit operation in any way it s just a checklist Return path The Return path frame consists of three radio buttons which control the ingress switch Note that the incoming return path RF signal will be completely cut off by the Off selection and will thus also disconnect all other transponders behind this station In AC2000 and AC8000 platforms there are two independent return path controls Measurements The background colour of each field shows the parameter s alarm status Alarm limits and severities can be configured through Monitoring page The Voltages frame displays measured supply voltages of the station The AC voltage field shows true RMS value DC AC component of the remote supply voltage This value is calculated using sliding average and thus 59300235 Rev 002 5 4 2007 11 30 will react quite slowly to changes The factory default limit values are based on power supply specifications and are thus quite broad They should be adjusted to match the network s AC supply voltages if accurate monitoring is needed 12 V and 24 V factory default alarm limits are based on power supply specifications and usually shouldn t be altered AC8000 has two 24 V fields as it can be equipped with double power supplies If only one power supply is installed the corresponding l
25. f modem is connected Modem Notification and minimum lt maximum Tuner module error Internal error in the tuner module If resetting the unit does not help it should be sent to service Station Major ALSC all pilots All pilots are missing Not generated if ALSC is switched missing off Station Major ALSC saturated ALSC is saturated i e adjustment limits have been k i reached Not generated if ALSC is switched off Station Minor Upper lower main and backup pilots are missing ALSC is ALSC on 1 pilot controlling gain only slope control is frozen Not i only generated if ALSC is switched off or there is no slope Station Minor adjustment possibility ALSC main pilot s One or both main pilot s are missing ALSC uses backup ae missing pilot s Not generated if ALSC is switched off Station Notification Electrical adjustment module installed but ALSC is ALSC off switched off by user Or ALSC switched on by user but Station Notification electrical adjustment module s are missing Spectrum out of Spectrum analyser measurement results are not within i limits high low limits Station Minor Return path ingress measurement results are above Ingress warning warning limit Station Minor Return path ingress measurement results are above alarm ngress alarm limit Station Major Transponder powered from USB platform is not powered Powered from USB Connect power to platform power supply for full Station Notification 59300235 Rev 002
26. he last sweep file downloaded to the device This name is derived from the first 15 characters of the file name The File gt gt Device and Device gt gt File buttons open a file dialog for transferring a sweep result file to from the device Sweep and result file formats The sweep file is a simple text file than can be edited with any text editor and most spreadsheet applications Each line in the sweep file defines one measurement frequency preferably in ascending order Each line has 2 4 fields separated with tab characters and dot as the decimal separator 1 The measurement frequency in multiples of 0 25 MHz 2 The detector mode as P or PAL for peak detection or Q or QAM for averaging measurement Detector mode designation is not case sensitive 3 Optional low limit in multiples of 0 5 dBuV 4 Optional high limit in multiples of 0 5 dBuV Comments can be inserted at the end of the line preceded with a tab character or on a separate row which starts with a non numeric character Comments are for information only and will not be downloaded into the device and so they are lost if result table is uploaded back from device An example of a valid sweep file 113 QAM 98 0 103 5 Channel S2 121 00 Q 101 Channel S3 126 25 D Another comment 133 25 PAL 95 59300235 Rev 002 5 4 2007 25 30 The result file format is identical to the sweep file format except that it has a header
27. he top of the list Notice is a text entry field where a message can be left e g for the next service technician The message can contain up to 100 characters Clicking the Clear button clears this text entry field The notice text is also shown on the Levels page allowing the field to be used e g as a reminder for pilot settings 59300235 Rev 002 5 4 2007 30 30 Properties Status Configuration Levels Transponder Monitoring Spectrum Ingress Repair Log Genre m Station Name AC1000 PM demo Type l C1000 Serial number KN15380631 Transponder Type l IR au Hardware version 1 0 Serial number DL02510648 Software version 0 8 0 r Statistics Uptime 0 d 17 20 36 Total uptime 15 days Reset count l 5 Figure 16 The Properties page The Properties page displays unit identification and statistics data Station The user can enter a descriptive alias name for the station into the Name field such as site location etc Alias name can contain up to 63 alphanumeric characters The type and serial number of the station are read only information Transponder The type and hardware version of the transponder unit as well as the serial number and the software version are read only information Statistics The Uptime field shows the time since the last reset or power up The format is days hours minutes and seconds with 5 s day accuracy The Total uptime f
28. ield shows the total number of full operating days of the transponder The Reset count field shows the total number of transponder resets
29. nd possible high low limit values of the clicked measurement are displayed next to the clicked point 59300235 Rev 002 5 4 2007 24 30 Limits The Limits group box has two selections When Show is checked the low and high limit s for each measurement frequency are shown in the graphical display with blue and red triangles respectively If a measurement is over high limit it will be drawn in red if it is below low limit in blue otherwise in black The Tolerance field specifies how many spectrum measurements are allowed to be outside limits before the Spectrum out of limits alarm is generated The default value 0 will generate the alarm even if only one value is outside limits Tolerance allows fine tuning the limit testing so that e g it doesn t react to one missing TV channel The alarm is set or cleared at the end of each measurement cycle Analyser settings The Analyser ON checkbox is the main switch for the spectrum analyser feature When checked AC6951 will cyclically measure the frequencies specified in the sweep file in addition to the standard four pilots measurements and possible return path ingress measurements AC6951 typically measures more than 10 frequencies per second depending on the amount of ALSC adjustments needed during the sweep The Restart sweep button clears the measurement results table and restarts the sweep The Current sweep file field displays the filename of t
30. nector for its microcontroller and memory if no external power supply is available This makes it possible to make a software download to AC6951 unit which is not installed into any AC platform Note that when configuring a transponder installed into unpowered platform some of the platform specific parameters and modules e g optical modules are not accessible Some transponder parameters will be overwritten with values on the platform memory when transponder is installed into powered platform The two LEDs on the front panel are labelled as Station and Modem The following table further describes these indicators During the power up sequence both LEDs will display yellow light for a short period of time to indicate that LEDs are functional See also the Alarms chapter for details of LED usage STATION LED Description E ocen No alarms other than modem related D yellow At least one minor alarm no major alarms D o At least one major alarm MODEM LED Description EN Not connected scanning for communication channel Ss Not connected communication channel found SE green blinking Geer registering green Connected no modem related alarms EE yellow Connected at least one modem related minor alarm no major alarms ed Connected at least one modem related major alarm Note that notifications do not affect LEDs When transponder is installed in platform equipped with optical receiver it als
31. o takes control of the receiver s LED The LED colour is determined by the respective alarm status see Alarms chapter for more details 59300235 Rev 002 5 4 2007 5 30 Software Establishing connection All the needed configurations and adjustments can be carried out locally or remotely by using the CATVisor Commander software Detailed CATVisor Commander hardware requirements and installation instructions can be found from the User Manual supplied with Commander Connection to AC6951 is possible using the following methods Local configuration with PC through standard USB port Commander 2 7 or later is needed for USB support Windows will ask for USB driver when connecting to AC6951 via USB for the first time If not found automatically the driver can be found in C Program Files Common Teleste Drivers select telestecdc inf file During the installation Windows may ask if it should stop the installation Select Continue Anyway Remote IP connection AC6951 CATVisor software only Remote IP connection through a HEC e g DMM201 Transponder IP address has to be correctly set before remote IP communication is possible It has to match the subnet settings of the DMM s HFC network interface and it must also be unique for each transponder Note that it is also possible to set the IP address remotely through DMM200 201 viewer see DMM documentation for details Remote SNMP connection AC6951 HMS software only
32. occurred before latest reset 59300235 Rev 002 5 4 2007 22 30 The icon and colour of each list entry indicates alarm status green for nominal value red for a major alarm yellow for a minor alarm blue for a notification The total number of entries in the alarm log list is shown in the Number of entries field The index number of the last entry is displayed in the accompanying field Total number of entries is limited to 32 The oldest entry is overwritten when the log becomes full To update Alarm log page click the Refresh button Clear and regenerate log button clears alarm log and restarts alarm detection 59300235 Rev 002 5 4 2007 23 30 Spectrum Spectrum Ingress Repair Log Properties Status Configuration Levels Transponder Monitoring Ref level 120 apv Scale ee 799 25 MHz ig K Ee Ve 0 sl dB div 22d HE I 100 0 De sloped view NONE D dB Limits M Show Tolerance ti Stat 0 MHz RBW 1 5 MHz Sweep 3 s Stop 1000 MHz Redraw nalyser settings Fit view V AnalyserON Current sweep file File gt gt Device EE Restart sweep JAC_demo2 Device gt gt File Figure 13 The Spectrum page The Spectrum viewer page presents forward path level measurements in a graphical spectrum analyser display Up to 100 measurement frequencies with individual PAL QAM selection and high low limits can b
33. og Alarm log k x Index Date Time Parameter Maus Alam Devicestatus a 82 Thu 11 01 07 08 43 50 Settings changed Notification Nominal 83 Thu 11 01 07 08 44 10 Settings stable No Nominal a 84 Thu 11 01 07 08 44 14 Settings changed Notification Nominal amp 85 Thu 11 01 07 08 44 16 Ingress warning Minor Minor Gi 86 Thu 11 01 07 08 45 14 Settings stable No Minor a 87 Thu 11 01 07 08 45 32 Settings changed Notification Minor 38 Thu 11 01 07 08 45 32 Ingress alarm Major MAJOR LE Thu 11 01 07 08 46 32 Settings stable No MAJOR a 90 Thu 11 01 07 09 08 38 Return path 6 dB Notification MAJOR BEJ Thu 11 01 07 09 08 38 Settings changed Notification MAJOR 32 Thu 11 01 07 09 09 36 Return path on No MAJOR 3 93 Thu 11 01 07 09 10 32 Modem connection not connec Notification MAJOR 34 Thu 11 01 07 09 11 32 Settings stable No MAJOR i 95 Thu 11 01 07 09 32 18 Lid open Notification MAJOR i 96 Thu 11 01 07 09 35 58 Service terminal connected Notification MAJOR i 97 Thu 11 01 07 09 36 56 Settings changed Notification MAJOR xl Number of entries 25 Last index 106 Clear and regenerate log Refresh cise _ Figure 12 The Alarm log dialog The Alarm log dialog box displays the alarm history for latest 32 events The list is stored in non volatile memory All entries are date and time stamped with the most current entry at the bottom Note that date time information may not be correct for events that
34. oup box has two selections When Show is checked the alarm and warning limit s for each measurement frequency are shown in the graphical display with red and blue triangles respectively If a measurement is over alarm HIHI limit it will be drawn in red if it is over warning HI limit but not over alarm limit in blue otherwise in black The Tolerance field specifies how many ingress measurements are allowed to be over limits before the Ingress warning and Ingress alarm alarms are generated The default value 0 will generate the alarm even if only one value is over limit The alarms are set or cleared at the end of each measurement cycle Analyser settings The Analyser ON checkbox is the main switch for the ingress measurement feature When checked AC6951 will cyclically measure the frequencies specified in the sweep file in addition to the standard four pilot measurements and possible forward path spectrum measurements AC6951 typically measures more than 10 frequencies per second depending on the amount of ALSC adjustments needed during the sweep The data field next to Analyser ON check box displays the ingress status Ingress OK green Ingress alarm red Ingress warning yellow Ingress disabled grey The Restart sweep button clears the measurement results table and restarts the sweep The Current sweep file field displays the filename of the last sweep file
35. ow voltage alarm limits should be set to zero to avoid false alarms It is possible to connect one external voltage or alarm line to AC8000 and monitor its status through 24 V 2 field instead of the second PSU s 24 V voltage The temperature display is based on AC6951 s internal sensor Temperature factory default alarm limits are defined separately for each platform based on their average power consumption The Service terminal field shows ON if there has been activity on the local USB service connector during the last minute Lid status information is based on a light sensor in the transponder s front panel Lid open is displayed if light level has been above limit during the last minute In dark environment Lid closed may be displayed even if the lid is open 59300235 Rev 002 5 4 2007 12 30 Optical This page is visible with AC8000 and AC800 platforms and with AC500 and AC1000 platforms equipped with optical module s Status Configuration SESCH Levels Transponder Monitoring Spectrum Repair Log Properties Input selection r Return transmitters Ce Automatic Both transmitters on Automatic manual restore C Manual Re 1 One transmitter on A follows active receiver C Manual Rx 2 Receiver modules r Transmitter modules Type Opticallevel Active Module Laser current Pilot Rx 1 acee20 SR d n Tsm Orts ES un bk Rx 2 accez0 BS am CC rv out im k Figure 5
36. s too old embedded software Not Station Major generated if transponder is powered from USB Transponder Transponder has an internal error If resetting the unit i internal error does not help it should be sent to service Station Major Lid Lid sensor light level has been above limit during last FP minute Station Notification functionality 59300235 Rev 002 5 4 2007 7 30 Return path off Return path is turned off In AC2000 and AC8000 this oe H alarm is common for both return paths Station Notification Return path 6 dB Return path is attenuated 6 dB In AC2000 and AC8000 a P this alarm is common for both return paths Station Notification Settings changed Unit s settings have been modified by user either locally or ee 9 9 remotely during last minute Station Notification Application started Unit was reset or rebooted during last minute Station Notification Service terminal There has been activity on local service connector during connected last minute Station Notification Modem receive RF modem receiver level is too low for reliable i level low communication Generated only if modem is connected Modem Minor Modem not oat e connected RF modem is not communicating with HEC Modem Notification Commanded transmit level is outside dynamic range Modem transmit modem transmit level is saturated at minimum or ee level saturated maximum value Generated only i
37. trol adjustment deadband is fixed at 0 5 dB i e changes less than this value will not be corrected OLC will react instantaneously to changes i e it does not have stepping feature as in ALSC Interstage The interstage module type is shown on the top of this frame The Gain and Slope fields and up and down buttons can be used to control the level value in 0 2 dB steps when ALSC is disabled When ALSC is enabled it has the control and this field is read only with background colour indicating ALSC status AC800 and AC8000 differences The Levels pages of AC800 and AC8000 are essentially the same than in AC500 AC1000 and AC2000 As there is no need for slope adjustment in these nodes there are no low pilots and no slope controls AC2000 and AC8000 second outputs AC2000 and AC8000 platforms have dual outputs but ALSC only measures output 1 In AC8000 output 2 level automatically follows output 1 changes with the offset specified in the Gain offset to output 1 edit field In AC2000 output 2 slope is adjusted according to output 1 slope with the offset specified in Slope offset edit field 59300235 Rev 002 5 4 2007 17 30 Transponder CATVisor This page is visible with CATVisor transponder Status Configuration Levels NEIE Monitoring Spectrum Ingress Repair Log Properties Receiver r Communication settings Frequency 85 4 MHz IP address UEBST Level SE dev Netmask 255 255 255 192 S
Download Pdf Manuals
Related Search