363-206-285
Page 4 of 6
Issue 3, June 2001
DDM-2000 OC-3 M
ULTIPLEXER
Troubleshooting (Problem Receipt,
Diagnosis & Resolution
a.
Obtain the following information regarding the equipment and the trouble:
■
Nature of observed problem, name, and telephone number of on-site
customer contact, circuit pack identifications for the DDM-2000 OC-3/OC-12
Multiplexer
■
Dial-in phone number for the DDM-2000, Login ID and password. Note:
Information on access to the customer’s DDM-2000 system is sensitive and
should be treated accordingly; only qualified persons who have a clear need
to know should request and/or accept such information.
■
Network map or diagram showing all equipment connected to the DDM-2000
inputs and outputs, and preferably the network of interest showing cross-
connection report.
b.
Alarms: During a trouble condition, the DDM-2000 displays alarms that help in
troubleshooting. The USER PANEL and circuit pack LEDs indicate the alarms;
alarms can also be remotely monitored on a PC via a modem. The types of alarms
are:
■
Critical Alarm: Loss of service to more than 96 DS0 channels (4 DS1).
■
Major Alarm: Loss of service to 96 or less DS0 channels.
■
Minor Alarms.
c.
Given the high reliability of the DDM-2000 Multiplexer, it is likely (~ 80% probability)
that the trouble lies outside of the DDM-2000. It could be located in the upstream or
downstream devices in the network, and in the quality of data being received by the
DDM-2000. This possibility should be kept in mind during the troubleshooting
process.
d.
Check for the following symptoms to form a preliminary diagnosis (this can be done
over the phone with the user, if you are off site):
Table 2.
Troubleshooting Symptoms
Symptom
Cause
Action
USER PANEL PWR ON
LED OFF
Loss of Power
Restore Power
USER PANEL CR, MJ, or
MN LED ON
Critical, Major, or Minor
Alarm
Log on to network and
continue diagnosis
Circuit pack FAULT LED
ON
Circuit pack failure
Reseat circuit pack. If fault
remains, replace circuit
pack
Circuit pack FAULT LED
FLASHING
Signal bad (LOS, LOF,
BER, or LOP); failure of
other equipment; failure of
fiber or cable
Trouble likely to be
external to DDM-2000.
Log on to network and
continue diagnosis
Содержание DDM-2000 OC-3
Страница 4: ......
Страница 14: ...xiv Issue 3 June 2001 Contents GL Glossary GL 1 ...
Страница 24: ...xxiv Issue 3 June 2001 Figures ...
Страница 28: ...Tables xxviii Issue 3 June 2001 A A SONET Overview A 34 SONET Transport Rates A 20 ...
Страница 58: ...363 206 285 About This Document lviii Issue 3 June 2001 ...
Страница 60: ...1 ii Issue 3 June 2001 Table of Contents ...
Страница 80: ...363 206 285 System Introduction 1 20 Issue 3 June 2001 ...
Страница 154: ...3 ii Issue 3 June 2001 Table of Contents ...
Страница 184: ...4 ii Issue 3 June 2001 Table of Contents ...
Страница 252: ...363 206 285 Transmission and Synchronization Interfaces 5 60 Issue 3 June 2001 ...
Страница 254: ...6 ii Issue 3 June 2001 Table of Contents ...
Страница 278: ...7 vi Issue 3 June 2001 Table of Contents ...
Страница 338: ...363 206 285 Circuit Pack Descriptions 7 60 Issue 3 June 2001 Figure 7 22 IMA LAN Power Settings 48V 48V 48V 5V 5V 5V ...
Страница 436: ...363 206 285 Circuit Pack Descriptions 7 158 Issue 3 June 2001 ...
Страница 440: ...8 iv Issue 3 June 2001 Table of Contents ...
Страница 518: ...363 206 285 Administration and Provisioning 8 78 Issue 3 June 2001 ...
Страница 588: ...10 iv Issue 3 June 2001 Table of Contents ...
Страница 690: ...363 206 285 Commands and Reports 11 20 Issue 2 February 2000 ...
Страница 842: ...RTRV ATTR ALM 2 of 2 Page RTRV ATTR ALM COMMANDS RELATED set attr alm 11 172 2000 February 2 Issue OC 3 DDM 2000 ...
Страница 899: ...RTRV OC12 3 of 3 Page RTRV OC12 COMMANDS RELATED set oc3 set oc12 OC 3 DDM 2000 2000 February 2 Issue 11 229 ...
Страница 1071: ...SET PASSWD 4 of 4 Page SET PASSWD COMMANDS RELATED rtrv lgn set lgn set secu OC 3 DDM 2000 2000 February 2 Issue 11 401 ...
Страница 1134: ...SET SYNC 8 of 8 Page SET SYNC COMMANDS RELATED rtrv sync set oc3 set oc12 switch sync 11 464 2000 February 2 Issue OC 3 DDM 2000 ...
Страница 1195: ... Ctl T TOGGLE 2 of 2 Page Ctl T TOGGLE COMMANDS RELATED logout rlgn OC 3 DDM 2000 2000 February 2 Issue 11 525 ...
Страница 1252: ...11 582 2000 February 2 Issue OC 3 DDM 2000 ...
Страница 1254: ...A ii Issue 3 June 2001 Table of Contents ...
Страница 1276: ...363 206 285 A SONET Overview A 22 Issue 3 June 2001 ...
Страница 1313: ...363 206 285 Issue 3 June 2001 DDM 2000 OC 3 Multiplexer TARP Release 13 and Later User Service Manual TOP Volume II ...
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Страница 1326: ...363 206 285 Page 10 of 12 Issue 3 June 2001 DDM 2000 OC 3 MULTIPLEXER Figure 2 Static Control Wrist Strap ...
Страница 1348: ...363 206 285 Acceptance IXL 001 Issue 3 June 2001 Page 2 of 2 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1412: ...NTP 003 System Turnup 363 206 285 Page 6 of 6 Issue 2 February 2000 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1420: ...363 206 285 System Turnup NTP 004 Issue 2 February 2000 Page 8 of 8 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1440: ...NTP 008 Circuit Order 363 206 285 Page 6 of 6 Issue 2 February 2000 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1458: ...363 206 285 Circuit Order NTP 011 Issue 2 February 2000 Page 6 of 6 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1462: ...NTP 012 Circuit Order 363 206 285 Page 4 of 4 Issue 2 February 2000 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1464: ...NTP 013 Circuit Order 363 206 285 Page 2 of 2 Issue 2 February 2000 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1484: ...NTP 016 System Turnup 363 206 285 Page 10 of 10 Issue 2 February 2000 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1498: ...363 206 285 Circuit Order NTP 018 Issue 2 February 2000 Page 10 of 10 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1508: ...363 206 285 System Turnup NTP 020 Issue 2 February 2000 Page 8 of 8 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1512: ...NTP 021 Circuit Order 363 206 285 Page 4 of 4 Issue 2 February 2000 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1528: ...363 206 285 Circuit Order NTP 023 Issue 2 February 2000 Page 8 of 8 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1552: ...363 206 285 Circuit Order NTP 024 Issue 2 February 2000 Page 24 of 24 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1560: ...363 206 285 Circuit Order NTP 025 Issue 2 February 2000 Page 8 of 8 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1574: ...363 206 285 Circuit Order NTP 027 Issue 2 February 2000 Page 4 of 4 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1610: ...363 206 285 Circuit Order NTP 030 Issue 2 February 2000 Page 8 of 8 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1616: ...363 206 285 Circuit Order NTP 031 Issue 2 February 2000 Page 6 of 6 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1622: ...363 206 285 Circuit Order NTP 032 Issue 2 February 2000 Page 6 of 6 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1634: ...363 206 285 System Turnup NTP 034 Issue 2 February 2000 Page 6 of 6 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1652: ...363 206 285 Circuit Order NTP 038 Issue 2 February 2000 Page 6 of 6 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1702: ...363 206 285 System Turnup NTP 041 Issue 2 February 2000 Page 8 of 8 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1714: ...363 206 285 Circuit Order NTP 042 Issue 2 February 2000 Page 12 of 12 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1744: ...NTP 045 System Turnup 363 206 285 Page 8 of 8 Issue 2 February 2000 DDM 2000 OC 3 MULTIPLEXER ...
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Страница 1796: ...363 206 285 System Turnup NTP 050 Issue 2 February 2000 Page 14 of 14 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1808: ...363 206 285 Circuit Order NTP 052 Issue 2 February 2000 Page 6 of 6 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1832: ...363 206 285 System Turnup NTP 054 Issue 2 February 2000 Page 14 of 14 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1866: ...363 206 285 System Turnup NTP 057 Issue 3 June 2001 Page 12 of 12 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1884: ...363 206 285 System Turnup NTP 059 Issue 3 June 2001 Page 12 of 12 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1896: ...363 206 285 System Turnup NTP 060 Issue 2 February 2000 Page 12 of 12 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1908: ...363 206 285 System Turnup NTP 061 Issue 2 February 2000 Page 12 of 12 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1912: ...NTP 002 Operation 363 206 285 Page 2 of 2 Issue 2 February 2000 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1914: ...363 206 285 Trouble Clearing IXL 001 Issue 2 February 2000 Page 2 of 2 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1918: ...TAD 100 Trouble Clearing 363 206 285 Page 4 of 4 Issue 2 February 2000 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1928: ...363 206 285 Trouble Clearing TAP 101 Issue 2 February 2000 Page 10 of 10 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1946: ...363 206 285 Trouble Clearing TAP 103 Issue 2 February 2000 Page 4 of 4 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1950: ...TAP 104 Trouble Clearing 363 206 285 Page 4 of 4 Issue 2 February 2000 DDM 2000 OC 3 MULTIPLEXER ...
Страница 1956: ...363 206 285 Trouble Clearing TAP 106 Issue 2 February 2000 Page 4 of 4 DDM 2000 OC 3 MULTIPLEXER ...
Страница 2014: ...363 206 285 Trouble Clearing TAP 112 Issue 2 February 2000 Page 16 of 16 DDM 2000 OC 3 MULTIPLEXER ...
Страница 2020: ...TAP 113 Trouble Clearing 363 206 285 Page 6 of 6 Issue 2 February 2000 DDM 2000 OC 3 MULTIPLEXER ...
Страница 2026: ...363 206 285 Trouble Clearing TAP 114 Issue 2 February 2000 Page 6 of 6 DDM 2000 OC 3 MULTIPLEXER ...
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Страница 2046: ...363 206 285 Trouble Clearing TAP 118 Issue 2 February 2000 Page 8 of 8 DDM 2000 OC 3 MULTIPLEXER ...
Страница 2050: ...TAP 119 Trouble Clearing 363 206 285 Page 4 of 4 Issue 2 February 2000 DDM 2000 OC 3 MULTIPLEXER ...
Страница 2062: ...363 206 285 Detailed Level Procedure DLP 500 Issue 2 February 2000 Page 2 of 2 DDM 2000 OC 3 MULTIPLEXER ...
Страница 2070: ...DLP 501 Detailed Level Procedure 363 206 285 Page 8 of 8 Issue 2 February 2000 DDM 2000 OC 3 MULTIPLEXER ...
Страница 2086: ...363 206 285 Detailed Level Procedure DLP 504 Issue 2 February 2000 Page 4 of 4 DDM 2000 OC 3 MULTIPLEXER ...
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