Acronyms and Abbreviations pulse per second primary reference source Universal Coordinated Time TimeSource 3100...
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FCC Regulatory Notice Warning: This equipment generates, uses, and can radiate radio frequency energy, and if not used in accordance with the instruction manual, may cause interference to radio communications. It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart B of Part 15 of FCC rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment.
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Chapter Engineering & Ordering This chapter provides information to assist in planning the installation and ordering a system appropriate for a specific site.
Antenna Guidelines 3HUIRUP D VLWH VXUYH\ DV GHV.ULEHG LQ 3UR.HGXUH $ EHIRUH RUGHULQJ WKH V\VWHP 8VH WKH JXLGHOLQHV DQG .RQVLGHUDWLRQV LQ WKH $QWHQQD /R.DWLRQ *XLGHOLQHV VH.WLRQ DQG WKH 6KHOI &RQVLGHUDWLRQV VH.WLRQ Procedure A. Site Survey Step Action Determine the shelf location. Determine the best location for mounting the antenna (less than 330 m of cable from the shelf).
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Figure 9. Antenna-to-Shelf Cabling Antenna 090-72010-97 Antenna mounting hardware 112-00002-01 TNC connector (Attached RG-59 cable to cable) Lightning suppressor (143-00018-01) and mounting bracket TNC connector (070-00300-02) (Attached to cable) RG-59 cable (060-72010-sax) Ground TNC connector (Attached to cable) RG-59 cable TNC connector (Attached to cable)
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Procedure B. Antenna Installation Step Procedure Attach the antenna mounting bracket to a pipe (2.5 cm diameter) or a wood post. • If mounting the bracket to a pipe, slide the two V-bolts over the pipe, and through the mounting bracket slots; then place the provided four washers and four nuts over the V-bolts, against the mounting bracket.
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Procedure B. Antenna Installation (cont’d) Step Procedure Slide the antenna bolts through the holes in the mounting bracket, then attach the antenna to the bracket, using the provided three nuts and three lockwashers. Antenna (±5° of vertical) 090-72010-97 Antenna bolts (3) Lock washers (3) Mounting bracket...
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Procedure B. Antenna Installation (cont’d) Step Procedure Slide the longer bolt of the lightning suppressor through the D-hole, and attach with the provided nut and washer. KEPS nut (2) 4.115 mm (6 AWG) ground wire Washer D-hole Lightning suppressor Mounting plate Hole for mounting bolt (2) Cable connector (2) Threaded posts (3)
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Procedure B. Antenna Installation (cont’d) Step Procedure If the lightning suppressor was not mounted directly to a valid earth ground, crimp a length of 4.115 mm (6 AWG) ground cable to the two-hole terminal, slide the terminal over two of the three threaded posts on the lightning suppressor mounting plate, and attach the terminal to the mounting plate with two KEPS nuts.
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Figure 11. Rack Mounting Options Rack rails Rear of rack Top of shelf Mounting ears A. ETSI – 53.5 cm rack Mounting ears Rack rails Rear of rack Rear of rack Top of shelf Top of shelf 12.7 Rack rails Mounting ears B.
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Figure 12. Connector Panel and Front Panel Connectors E1 outputs Alarms Battery B E1 inputs A & B port 1 & frame output A & B Remote ground (BNC) (BNC) 10 MHz oscillator 1 pps (TB1) output inputs A & B output Time of day port 2...
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Figure 19. ESCIU Cutover without Jacks (Out-of-Service) REMOVE EXISTING CABLING RECEIVE RECEIVE NETWORK NETWORK (IN) (IN) ELEMENT ELEMENT NOT BEING BEING TIMED TIMED FROM FROM ESCIU ESCIU TRANSMIT TRANSMIT MODULE MODULE (OUT) (OUT) RTN1 OUT RTN1 IN Existing cabling Remove existing cabling SPAN 1 New cabling Connection point...
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Figure 20. ESCIU Cutover without Jacks (Out-of-Service) PRIMARY REFERENCE DIGITAL LINE INTERFACE INTF PORT EQPMT DIGITAL SWITCH MACHINE* SECONDARY REFERENCE DIGITAL LINE INTERFACE INTF PORT EQPMT RTN1 OUT RTN1 IN Patch Cord Bridging Repeaters DSX-1 Jacks Existing cabling * Some digital switch to be removed machines designate SPAN 1...
Time of Day Output &RQQH.W WKH WLPH RI GD\ 72' RXWSXW DW WKH IHPDOH 5- .RQQH.WRU ODEHOHG 72' 6HH )LJXUH IRU WKH .RQQH.WRU OR.DWLRQ DQG 7DEOH % IRU WKH .RQQH.WRU SLQRXWV Table B. TOD Connector Pinouts Signal Abbreviation Direction 1 pps A TOD PPS + From TimeSource 3100...
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Procedure C. Power Up (cont’d) Step Procedure At the shelf end of the battery leads, use the multimeter to measure the voltage between the following: Test Point Test Point Result Battery A lead Battery B lead Battery A lead TB1: RTN A Battery A lead TB1: FRM Battery B lead TB2: RTN B...
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Procedure C. Power Up (cont’d) Step Procedure Install the battery source fuse(s) in the rack fuse bay that supplies power to the TimeSource 3100. The TimeSource 3100 enters its warm-up mode after approximately 60 s when power is applied. During the warm-up period, the following conditions exist: •...
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Procedure C. Power Up (cont’d) Step Procedure Note: The TimeSource 3100 requires several minutes, depending on the number of satellites in view, to find the latitude, longitude, and altitude of the antenna. Entering the attitude and longitude can save this time. If desired, use the Edit Equipment command to enter the attitude, longitude, and altitude of the antenna.
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Procedure C. Power Up (cont’d) Step Procedure If UTC time is desired, skip to Step 19. Use the Edit Date command to set the local date and time. ED-DAT:::<ctag>::yyyy-mm-dd,hh-mm-ss:MODE=LOCAL; yyyy = year (yyyy = 1998 to 2096) = month (mm = 01 to 12) = day (dd = 01 to 31) = hours (hh = 00 to 23) = minutes (mm = 00 to 59)
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Procedure C. Power Up (cont’d) Step Procedure If the results of Step 20 indicate the remote oscillator inputs are set as desired or not used, skip to Step 23. Use the Enter Equipment command to monitor and/or ensemble each remote oscillator input. ENT-EQPT::RO-a:<ctag>:::ENSEMBLER=b;...
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Procedure C. Power Up (cont’d) Step Procedure If not using performance monitoring, skip to Step 26. Use the Initialize Register command to reset the performance monitoring data to zero for one or all input E1 spans. INIT-REG-EQPT::SPAN-a:<ctag>::ALL; = SPAN input (a = A, B, or ALL) = resets all performance monitoring data If not using Ethernet, go to Step 30.
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Procedure C. Power Up (cont’d) Step Procedure Ports 5001, 5002, 5003 and 5004 on the TimeSource 3100 are used as though they were serial TL1 communication ports. The following values are set at the factory and appear at reset: COMPRI=ALW1 (normal communication, including autonomous messages) MONMSG=INH (monitors only the current port for messages) KEEPALIVE=0 (does not send a COMPLD message to keep connection open) ENDOFTEXT=0 (does not include an end-of-text code with a TL1 message)
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Procedure C. Power Up (cont’d) Step Procedure If not using an Element Manager, skip to Step 30. If not using a separate port to send autonomous messages to an Element Manager, skip to Step 29. Use the Edit Equipment command to set the IP address and port address of the Element Manager where port 5550 connects to send TL1 autonomous messages (when the autonomous message has been sent, the TimeSource 3100 closes the connection).
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Procedure C. Power Up (cont’d) Step Procedure An Element Manager connects to port 5551 on the TimeSource 3100 for communicating TL1 command and response messages. The following values for port 5551 are set at the factory and appear at reset: COMPRI=ALW0 (normal communication, no autonomous messages) MONMSG=INH (monitors only the current port for messages) KEEPALIVE=0 (does not send a message to keep to connection open)
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Procedure C. Power Up (cont’d) Step Procedure If not using ESCIU ports, skip to Step 32. Use the Edit Equipment command to specify how the ESCIU performs during holdover: ED-EQPT::TS3100:<ctag>:::BYPASS=a; = E1 traffic bypasses the ESCIU circuitry (a = ALW) or continues to be synchronized during holdover (a = INH).
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Procedure C. Power Up (cont’d) Step Procedure If not using the TOD output, skip to Step 34. Use the Edit Equipment command to set the TOD output. ED-EQPT::TS3100:<ctag>:::TOD=b; = TOD format (b = Cisco or NTP4) When the GPS signals have been acquired and the outputs are stable enough to output PRS, the TimeSource enters its normal operation mode.
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Table G. Parameter Definitions (cont’d) Parameter Definition <date> Current date in the 8-digit form: yyyy-mm-dd (command) or yyyy:mm:dd (response or message), where yyyy is the year, mm is the month (01-12), and dd is the day of the month (01-31). For example, May 3, 2000 is 2000-05-03. <errcde>...
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Table G. Parameter Definitions (cont’d) Parameter Definition <mondat> Date of the performance monitoring data. <montm> Time of the performance monitoring data. <montype> Data type of the performance monitoring data. <monval> Value of the performance monitoring data. <ntfcncde> Notification code showing the alarm severity, which is one of the following: = critical = major = minor...
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Table G. Parameter Definitions (cont’d) Parameter Definition <srveff> Identifies whether the alarm condition is service affecting: = service affecting = not service affecting <tid> Target identifier which identifies the equipment (TimeSource 3100) to which the command is directed. The tid must be a valid TL1 identifier of a maximum of 20 characters (limited to letters, digits, and hyphens) beginning with a letter.
Tasks/Commands 7R SHUIRUP HD.K WDVN XVH WKH .RPPDQG OLVWHG EHVLGH WKDW WDVN LQ 7DEOH , Table I. Commands for Tasks Page Task Command Log user onto system Activate User Log user off of system Cancel User Copy software program or database Copy Memory Delete equipment from the database Delete Equipment...
Table I. Commands for Tasks (cont’d) Page Task Command Reset the system processor or GPS receiver Initialize System processor Deactivate the audible office alarm Operate Alarm Cutoff All Display current system alarms Retrieve Alarm All Display current alarms for specific equipment Retrieve Alarm Equipment Display current communication port parameter Retrieve Communication...
Edit Communication 7KLV .RPPDQG .KDQJHV .RPPXQL.DWLRQ SRUW SDUDPHWHUV 7KH .RPPDQG IRUPDW LV ED-COM:[<tid>]:<aid>:<ctag>:::spec_block; Value Item Addressed COM-a a = 1 Serial communication port 1 (COM1) a = 2 Serial communication port 2 (COM2) a = 3 Serial communication port 3 (Craft) a = 5001 Ethernet user interface port 5001 (Note 1) a = 5002...
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Edit Communication (cont’d) Parameter Value Description COM-a AUTOLOGOFF=b b = 1 to 255 Inactive minutes until the unit logs off (cont’d) the user, keeping the connection open b = 0 Autologoff is disabled HWCONTROL=b b = ALW Serial port CTS/RTS flow control is (See Note 2) enabled b = INH...
Edit Date 7KLV .RPPDQG .KDQJHV WKH V\VWHP GDWH DQG WLPH 7KH .RPPDQG IRUPDW LV ED-DAT:[<tid>]::<ctag>::<date>,[<time>] :[MODE=a]; Parameter Value Parameter Description date in the format a = <year> 4-digit year a-b-c b = 01 to 12 Month c = 01 to 31 time in the format a = 00 to 23 Hour of the day...
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Edit Date (cont’d) Example to set date without changing time or mode: ED-DAT:::<ctag>::2000-08-13; Example to change to local time: ED-DAT:::<ctag>::2000-08-13,07-00-00:MODE=LOCAL; Example to change from local to UTC time: ED-DAT:::<ctag>::2000-08-13:MODE=UTC; Response Format: <sid> <date> <time> <ctag> COMPLD /*LINK:<link>,CMD:<command>*/ TimeSource 3100...
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Edit Equipment (cont’d) Parameter Value Description TS3100 IPGATE=a.b.c.d a = 0 to 255 Default gateway IP address for this (contd) (See Note 1) TimeSource 3100 (must be connected b = 0 to 255 to COM1, COM2, or Craft port to set c = 0 to 255 this parameter) d = 0 to 255...
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Edit Equipment (cont’d) Parameter Value Description Notes: For all parameters in the GPS <aid>: 1. When the TimeSource 3100 contains a roof antenna, only the parameters ANTCBLDLY and ANTELEVMASK, and the mode ANTMODE=AUTO, are allowed. 2. The MANLAT, MANLONG, and MANELEV values are entered as the latitude, longitude, and elevation at the time ANTMODE=MANUAL becomes active.
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Edit Equipment (cont’d) Parameter Value Description RO-a ENSEMBLER=b b = ALW Remote oscillator is ensembled b = INH Remote oscillator is not ensembled SPAN-a ENSEMBLER=b b = ALW Span is ensembled b = INH Span is not ensembled SIGNAL=b b = ANALOG Span input signal is 2.048 MHz b = DIGITAL Span input signal is 2.048 Mb/s SSM=b...
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Edit Equipment (cont’d) Parameter Value Description OPT-a ALMOUT=b b = AIS Output is AIS during alarm (Additional b = SQUELCH Output is squelched during alarm E1 outputs b = SSM Output includes SSM during alarm (SSM on 990- requires either CAS4 or CCS4 output 72020-02 framing) systems...
Enter User Security 7KLV .RPPDQG DOORZV D V\VWHP DGPLQLVWUDWRU WR HQWHU D QHZ XVHU DQG WKH QHZ XVHU·V XVHU QDPH SDVVZRUG DQG D..HVV OHYHO 7KH .RPPDQG IRUPDW LV ENT-USER-SECU:[<tid>]:<uid>:<ctag>::<pid>,,<uap>; Parameter Parameter Description <uid> User name – must start with an alpha character and have a maximum of 10 characters.
Retrieve Alarm All 7KLV .RPPDQG GLVSOD\V DOO .XUUHQW V\VWHP DODUPV 7KH .RPPDQG IRUPDW LV RTRV-ALM-ALL:[<tid>]:ALL:<ctag>; If there are no alarms: <sid> <date> <time> <ctag> COMPLD /*LINK:<link>,CMD:<command>*/ If there is at least one alarm: <sid> <date> <time> <ctag> COMPLD "<aid>:<ntfcncde>,<condtype>,<srveff>, <ocrdat>,<ocrtm>,,:\"<conddescr>\""... /*LINK:<link>,CMD:<command>*/ 5HIHU WR WKH 7URXEOHVKRRWLQJ .KDSWHU IRU D OLVW RI DOO Note:...
Retrieve Alarm Equipment 7KLV .RPPDQG GLVSOD\V .XUUHQW DODUPV IRU WKH VSH.LILHG HTXLSPHQW 7KH .RPPDQG IRUPDW LV RTRV-ALM-EQPT:[<tid>]:<aid>:<ctag>; Value Item Addressed TS3100 — System (all TS3100 alarms) SPAN-a a = A E1 span A input a = B E1 span B input RO-a a = A Remote oscillator A input...
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Retrieve Alarm Equipment (cont’d) If there are no alarms: <sid> <date> <time> <ctag> COMPLD /*LINK:<link>,CMD:<command>*/ If there is at least one alarm: <sid> <date> <time> <ctag> COMPLD "<aid>:<ntfcncde>,<condtype>,<srveff>, <ocrdat>,<ocrtm>,,:\"<conddescr>\""... /*LINK:<link>,CMD:<command>*/ 5HIHU WR WKH 7URXEOHVKRRWLQJ .KDSWHU IRU D OLVW RI DOO Note: .RQGGHV.U! PHVVDJHV DQG WKH UH.RPPHQGHG D.WLRQ TimeSource 3100...
Retrieve Communication 7KLV .RPPDQG GLVSOD\V .RPPXQL.DWLRQ SRUW SDUDPHWHU VHWWLQJV 7KH .RPPDQG IRUPDW LV RTRV-COM:[<tid>]:<aid>:<ctag>; Value Item Addressed COM-a a = 1 Serial communication port 1 a = 2 Serial communication port 2 a = 3 Serial communication port 3 a = 5001 Ethernet user interface port 5001 a = 5002 Ethernet user interface port 5002...
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Retrieve Communication (cont’d) 7KH SDUDPHWHUV ZKL.K PD\ EH GLVSOD\HG LQ WKH VSH.BEOR.N! DUH OLVWHG EHORZ Parameter Value Description BAUD=b b = 115, 57.6, Communication port baud rate, where (See Note 1) 38.4, 19.2, 115, 57.6, 38.4, and 19.2 are kbaud; and 9600, 4800, 9600, 4800, 2400, and 1200 are baud 2400, or 1200...
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Retrieve Communication (cont’d) 7KH SDUDPHWHUV ZKL.K PD\ EH GLVSOD\HG LQ WKH VSH.BEOR.N! DUH OLVWHG EHORZ Parameter Value Description MONMSG=b b = ALW View messages from all ports b = INH View messages from this port only KEEPALIVE=b b = 1 to 255 Inactive minutes until the unit sends a COMPLD message to keep the connection from being closed...
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Retrieve Communication (cont’d) Parameter Value Parameter Description AUTOLOGOFF=b b = 1 to 255 Inactive minutes until the unit logs off the user, keeping the connection open b = 0 Autologoff is disabled SWCONTROL=b b = ALW XON/XOFF flow control is enabled b = INH XON/XOFF flow control is not enabled HWCONTROL=b...
Retrieve Condition All 7KLV .RPPDQG GLVSOD\V DOO .XUUHQW V\VWHP DODUPV DQG HYHQWV 7KH .RPPDQG IRUPDW LV RTRV-COND-ALL:[<tid>]:ALL:<ctag>; If there are no alarms or events: <sid> <date> <time> <ctag> COMPLD /*LINK:<link>,CMD:<command>*/ If there is at least one alarm or event: <sid> <date> <time> <ctag>...
Retrieve Condition Equipment 7KLV .RPPDQG GLVSOD\V .XUUHQW DODUPV DQG HYHQWV IRU WKH VSH.LILHG HTXLSPHQW RTRV-COND-EQPT:[<tid>]:<aid>:<ctag>; Value Item Addressed TS3100 — System SPAN-a a = A E1 span A input a = B E1 span B input RO-a a = A Remote oscillator A input a = B Remote oscillator B input...
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Retrieve Condition Equipment (cont’d) If there are no alarms: <sid> <date> <time> <ctag> COMPLD /*LINK:<link>,CMD:<command>*/ If there is at least one alarm: <sid> <date> <time> <ctag> COMPLD "<aid>:<ntfcncde>,<condtype>,<srveff>, <ocrdat>,<ocrtm>,,,\"<conddescr>\""... /*LINK:<link>,CMD:<command>*/ 5HIHU WR WKH 7URXEOHVKRRWLQJ .KDSWHU IRU D OLVW RI DOO Note: .RQGGHV.U! PHVVDJHV DQG WKH UH.RPPHQGHG D.WLRQ TL1 Reference...
Retrieve Equipment 7KLV .RPPDQG GLVSOD\V SDUDPHWHU VHWWLQJV IRU WKH VSH.LILHG HTXLSPHQW 7KH .RPPDQG IRUPDW LV RTRV-EQPT:[<tid>]:<aid>:<ctag>; Value Item Addressed — All aids for this command TS3100 — System — GPS receiver RO-a a = A Remote oscillator A input a = B Remote oscillator B input SPAN-a a = A...
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Retrieve Equipment (cont’d) Response Format: <sid> <date> <time> <ctag> COMPLD "<aid>::::<spec_block>"... /*LINK:<link>,CMD:<command>*/ 7KH SDUDPHWHUV ZKL.K PD\ EH GLVSOD\HG LQ WKH VSH.BEOR.N! DUH OLVWHG EHORZ Parameter Value Parameter Description MONITOR=a a = ALW Monitor is used for alarm purposes a = INH Monitor is not used for alarm purposes TS3100 BYPASS=a...
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Retrieve Equipment (cont’d) Parameter Value Parameter Description TS3100 IPNE=a.b.c.d a = 0 to 255 This unit’s IP address (cont’d) b = 0 to 255 c = 0 to 255 d = 0 to 255 IPSUBNET=a.b.c.d a = 0 to 255 Subnetwork mask b = 0 to 255 c = 0 to 255...
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Retrieve Equipment (cont’d) Parameter Value Parameter Description TS3100 IPEM2PORT=a a = 0 to 65535 Alternate element manager port number (contd) IPINACT=a a = 0 to 10000 The TimeSurce 3100 disconnects from the Element Manager if no communications occur during this number of 100-ms units (0 to 10,000, where 0 deactivates the timer, for example, 100 = 10 s)
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Retrieve Equipment (cont’d) Parameter Value Parameter Description RO-a ENSEMBLER=b b = ALW Remote oscillator is ensembled b = INH Remote oscillator is not ensembled MONITOR=b b = ALW E1 span is monitored b = INH E1 span is not monitored SPAN-a ENSEMBLER=b b = ALW...
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Retrieve Equipment (cont’d) Parameter Value Parameter Description E1-a FRAMING=b b = CAS Output framing is CAS b = CAS4 Output framing is CAS4 b = CCS, Output framing is CCS b = NONE Output framing is NONE (if an analog signal).
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Retrieve Equipment (cont’d) Parameter Value Parameter Description OPT-a ALMOUT=b b = AIS Output during holdover alarm is AIS (Additional b = SQUELCH No output during holdover alarm eight E1 b = SSM Output during holdover alarm is SSM outputs for (SSM requires output framing of CAS4 990-72020- or CCS4)
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Retrieve GPS Status (cont’d) Parameter Value Description LAT=a a = dd.mm.sssN Current latitude north in degrees, minutes, and seconds a = dd.mm.ssS Current latitude south in degrees, minutes, and seconds LONG=a a = ddd.mm.sssE Current longitude east in degrees, minutes, and seconds a = ddd.mm.sssW Current longitude west in degrees, minutes,...
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Retrieve Inventory (cont’d) Parameter Value Description CARD=TS3100 — System MACID=a.b.c.d.e a = 00 to FF in MAC address hexadecimal format b = 00 to FF in hexadecimal format c = 00 to FF in hexadecimal format d = 00 to FF in hexadecimal format e = 00 to FF in hexadecimal format...
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Retrieve Performance Monitoring (contd) Parameter Value Description SPAN-a a = A E1 span A input a = B E1 span B input MONTYPE=a a = MTIE Performance monitoring data type a = TDEV a = PHASE1S a = PHASE1M MONDAT=a-b a = 1 to 12 Monitor date, month of the year b = 1 to 31...
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Retrieve Performance Monitoring (contd) Parameter Value Description SPAN-a a = A E1 span A input a = B E1 span B input MTIE-a a = 1S, 2S, 4S, MTIE monitored type, where a is time 10S, 40S, 100S, intervals in seconds 300S, 900S, 1800S, 3600S, 7200S, 14400S,...
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Retrieve Performance Monitoring (contd) Parameter Value Item Addressed SPAN-a a = A E1 span A input a = B E1 span B input TDEV=a a = 1S, 2S, 4S, 8S, TDEV monitored type, where a is time 16S, 32S, 64S, intervals in seconds 128S, 256S, 512S, or 1024S...
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Retrieve Performance Monitoring (contd) Parameter Value Item Addressed SPAN-a a = A E1 span A input a = B E1 span B input PHASE1S — Phase 1S monitored type, which shows 900 s of phase values <monval> First s of the Absolute monitored phase value 100 s data group.
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Retrieve Performance Monitoring (cont’d) Parameter Value Item Addressed SPAN-a a = A E1 span A input a = B E1 span B input PHASE1M — Phase 1M monitored type, which shows 1 min phase data in 1 h groups of data <monval>...
Troubleshooting This chapter provides troubleshooting information using front-panel lamps and error messages. It also describes how to replace a card, return equipment, get technical and/or sales assistance, and obtain manual updates. Chapter...
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Figure 25. Controls and Indicators Remote Oscillator B Remote Alarms Oscillator A Status Alarms Span A CRIT Span B Status Alarms (Pushbutton) (Lamp) 990-72020-01, -02, -05 Systems Remote Retimed Oscillator B Span B Remote Retimed Oscillator A Span A Status Alarms Alarms Span A...
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Table J. Front Panel Lamps Name State Description Action Span A This input has not been entered None required. If desired, enter via the Enter Equipment this input via the Enter Equipment Span B command. command. Green This input has been entered via None required.
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Table J. Front Panel Lamps (cont’d) Name State Description Action Status GPS System is not powered. If in warm-up, none required. If there is no power, apply power. Green GPS is successfully tracking None required. satellites, or is in warm-up. Yellow An event (GPS error) has None required.
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Table J. Front Panel Lamps (cont’d) Name State Description Action Alarms MIN There is no minor alarm. None required. Yellow A minor alarm has occurred Troubleshoot and repair the because Battery A or B has failed. specified 48 V battery input. –...
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Table J. Front Panel Lamps (cont’d) Name State Description Action Retimed This port has not been entered via None required. If desired, enter Span A or B the Enter Equipment command. this port via the Enter Equipment (990-72020- command. 04 systems Green This port has been entered via the None required.
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Table K. Message Troubleshooting (cont’d) Message Meaning Recommended Action MINOR ALARMS BATTERY x FAIL The specified 48 V battery Troubleshoot, and repair, the specified – input has failed. 48 V battery input. – DEVICE The hardware device software Download and install the appropriate DOWNLOAD is corrupt or missing.
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Table K. Message Troubleshooting (cont’d) Message Meaning Recommended Action GPS ERROR (contd) The GPS receiver is reporting 5. If the current is less than 5 mA or more than 500 mA, replace the an error. TimeSource 3100 card, using Procedure D. If not (nominal current is 125 mA), re-connect the antenna cable to the rear of the shelf.
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Table K. Message Troubleshooting (cont’d) Message Meaning Recommended Action HIGH CURRENT Current to antenna is outside 4. If the voltage is 18 V dc ±2 V dc, measure the current between the FAULT (contd) specification. antenna connector center pin and the connector housing on the shelf LOW CURRENT TNC antenna connector.
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Table K. Message Troubleshooting (cont’d) Message Meaning Recommended Action SPAN x LOSS OF The signal on the specified Troubleshoot the specified input span SIGNAL input span has been lost. signal (check cable, connections, source). TEMPERATURE A temperature error has been If this occurs momentarily during ERROR detected on the internal...
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Table K. Message Troubleshooting (cont’d) Message Meaning Recommended Action HOLDOVER All inputs (GPS signal, span None required. inputs, and remote oscillator inputs) are lost or unacceptable, and the system is now using the internal oscillator. CRITICAL ACO The ACO pushbutton has None required.
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Table K. Message Troubleshooting (cont’d) Message Meaning Recommended Action RO x LOSS OF The specified remote Troubleshoot the specified remote SIGNAL oscillator input signal has been oscillator input (check cable, (Note 2) lost. connections, source). SCIU x LOSS OF The signal on the specified Troubleshoot the traffic-carrying span SIGNAL ESCIU port has been lost.
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Table K. Message Troubleshooting (cont’d) Message Meaning Recommended Action SPAN x SSM The signal on the specified Troubleshoot the specified input span QUALITY SSUT span input has degraded to an (check source). (Note 2) SSM quality level of SSUT. TEMPERATURE A temperature error has been 1.
Card Replacement 7R UHSOD.H WKH SOXJLQ .DUG IROORZ WKH VWHSV LQ 3UR.HGXUH ' DQG UHIHU WR )LJXUH Procedure D. Card Replacement Step Procedure Put on an ESD wrist strap. Plug the ESD wrist strap into the ESD jack on of the front panel of the shelf. On the Faulty Card Loosen the two retaining screws that secure the plug-in card in the shelf.
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Figure 26. Front of Shelf Jack Retaining Latching Latching Retaining Screw Lever Lever Screw 990-72020-01, -02, -05 Systems Jack Retaining Latching Latching Retaining Screw Lever Lever Screw 990-72020-04 Systems Troubleshooting...
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Note: Retain the RMA number for future reference. The RMA number is used by Symmetricom for internal tracking of the unit. Reference the RMA number in all communications with Symmetricom regarding the unit. Pack the defective equipment, including a list containing all the information obtained above, in the original packing material.
Chapter Specifications This chapter provides equipment specifications.
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Antenna Type: Active volute antenna, right-hand circular polarized, with proprietary IF interface Voltage (via signal cable): 12 V dc nominal Current (via signal cable): 125 mA Gain: 23 dB Cable Type: Mini RG-59 (Belden 673948 or equivalent) or RG-59 (Belden 82108 or equivalent) Cable Length: Maximum 330 m from antenna to shelf Dimensions:...
Time of Day Outputs Network Time Protocol (NTP), Type 4, Format 2 Driver Format Connector Type: RJ-45 Connector Label: Connector Location: Connector panel Electrical Interface: RS-485 Baud Rate: 9600 b/s Data Format: See Figure 27 Figure 27. NTP Type 4 Data Format Example: Alarm field: blank space = receiver has satellite availability;...
Time of Day Outputs (cont’d) Cisco Systems Format Connector Type: RJ-45 Connector Label: Connector Location: Connector panel Electrical Interface: RS-485 Baud Rate: 9600 b/s Bit Configuration: 8 data bits, No parity, 1 stop bit Data Format: See Figure 28 Figure 28. Cisco Systems Data Format Example: 1 Satellite availability: * = valid, ! = not valid 2 Revision...
Time of Day Outputs (cont’d) IRIG-B TOD Outputs (990-72020-05 System Only) Connector Type: Number of Outputs: Connector Labels: OUT1 OUT2 OUT3 OUT4 Connector Location: Module on connector panel Ω Impedance: Type of Output: Amplitude modulated Amplitude: 6 V peak-to-peak maximum terminated with Ω...
Remote Oscillator Inputs Connector Type: Connector Label: REM OSC A REM OSC B Connector Location: Connector panel Ω Impedance: Frequency: 5 MHz or 10 MHz Format: Sine wave Amplitude: 1 V rms minimum 3.5 V rms maximum TimeSource 3100...
E1 Inputs Ω Connector Type: Wire-wrap pins for 120 balanced terminations Ω BNC for 75 unbalanced terminations (Use only BNC or only wire-wrap connector, not both, for one input.) Connector Label: BNC: SPAN IN A SPAN IN B Wire-Wrap (2 sets): Connector Location: Connector panel Ω...
Analog 2.048 MHz Inputs Ω Connector Type: Wire-wrap pins for 120 balanced terminations Ω BNC for 75 unbalanced terminations (Use only BNC or only wire-wrap connector, not both, for one input.) Connector Label: BNC: SPAN IN A SPAN IN B Wire-Wrap (2 sets): Connector Location: Connector panel...
1 PPS Output Connector Type: Connector Label: TTL PPS Connector Location: Connector panel Ω Impedance: Frequency: 1 pps Time Accuracy: 100 ns with respect to Universal Coordinated Time (UTC) when locked to GPS signal ± GPS Holdover Time Error: 3 µs for 72 h (0 °C to +50 °C 5 °C) after one week of steady-state operation Pulse Width:...
E1 Outputs Standard Ω Connector Type: Wire-wrap pins for 120 balanced terminations Ω BNC for 75 unbalanced terminations (Use only BNC or only wire-wrap connector, not both, for one output.) Connector Label: BNC: E1 OUT A E1 OUT B Wire-Wrap (2 sets): Connector Location: Connector panel Ω...
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E1 Outputs (cont’d) Standard (cont’d) Framing: CAS4 CCS4 Output During Alarms: Squelch Forced Specifications...
Analog 2.048 MHz Outputs Standard Ω Connector Type: Wire-wrap pins for 120 balanced terminations Ω BNC for 75 unbalanced terminations (Use only BNC or wire-wrap connector for a single output.) Connector Label: BNC: E1 OUT A E1 OUT B Wire-Wrap (2 sets): Connector Location: Connector panel Ω...
Office Alarms Connector Panel Contacts Connection: Wire-wrap pins Type: Dry contact Contact Rating: 1 A @ 30 V dc 0.5 A @ 60 V dc 0.5 A @ 125 V ac Severity: Critical Major Minor State: Normally open and normally closed Style: Audible and visible Front Panel Lamps...
Office Alarms (cont’d) Front Panel Control Label: Type: Push button switch Function: Alarm cutoff (deactivates audible office alarms) Power Connector Type: Terminal block Connector Labels: Voltage: –40 V dc to –72 V dc (A & B feed) Current: 750 mA maximum Steady-State Power 30 W maximum Recommended Fuse...
Shelf Mechanical Rack Mounting: 48.5 cm rack 53.5 cm rack Mounting Positions: Flush 12.7 cm offset (48.5 cm rack only) Width: 48.3 cm Height: 22.2 cm maximum Depth: 30.5 cm maximum Weight: 5.9 kg Shelf Environmental Operating Temperature: 0 °C to +50 °C Operating Humidity: Up to 95% noncondensing Electromagnetic Compliance:...
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