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Data Cards
16-21
LDSRU-10P Card
SRU Card Error Messages
16.6
SRU Card Error Messages
Refer to Appendix B in the System Reference Guide for further information on Error
Messages regarding this card.
16.7
SRU Card Troubleshooting
SRU card problems could indicate a number of possible causes, including:
•
Faulty receiving DTE at the near end (where the problem was first noticed)
•
Faulty transmitting DTE at the far (opposite) end
•
Faulty cabling between the DTE and SRU card at the near end
•
Faulty cabling between the DTE and SRU card at the far end
•
T1 or E1 network failure
•
Improper card configuration at either end (e.g., time slot and/or WAN port assignments)
Typically, a problem is indicated by a loss of incoming signal on a data port at either end of
the circuit. You can perform numerous tasks to isolate the trouble and clear it. When
troubleshooting transmission problems on a data circuit passing through an SRU card, follow
this general sequence:
1. If all ports are affected, verify that the US/EUR jumper is correctly placed to match the
US/EUR jumper on the chassis.
2. Verify that the T1 or E1 network is working properly by checking for current CGA-Red
and CGA-Yellow alarms. If the network is faulty, the same transmission problem may
exist with the other ports of the same SRU card, and also with the data ports of all other
data cards connected to the same T1 or E1 line. If no CGA alarms are present, continue
with step 3.
3. Verify that the DS0 time slot and sub-rate TS assignments of the faulty port at both ends
of the data circuit path are correct. Also be sure the port is connected to the proper WAN
card and port and that other critical parameters, such as RATE, are set the same at each
end. If these assignments are correct, continue with step 4.
4. At the local end (where the incoming data loss was first observed), use the loopback
and test signal functions of the SRU card to test the affected port. These tests are
accessible from the SRU Card Main Screen (through the LB and related parameters)
and its associated Test Screen (through the BERT parameter), as previously described
in this chapter. These allow you to test the circuit path in segments and thereby quickly
pinpoint the problem.
Содержание IMACS 8000
Страница 20: ...xviii Table of Contents Model No Running Head Table of Contents...
Страница 38: ...1 6 Reference Guide Model No Running Head Customer Service and Ordering Information What s New...
Страница 58: ...2 20 Reference Guide Model No Running Head Installing the Other Plug In Cards System Installation...
Страница 82: ...4 18 Reference Guide Model No Running Head PWE IP Uplink Server 8000 PWE Applications...
Страница 210: ...6 12 Reference Guide Model No Running Head Performance Monitoring System Testing and Diagnostics...
Страница 270: ...7 60 System Cards Model No Running Head CPU Card Specifications CPU Card...
Страница 300: ...8 30 System Cards Model No Running Head Interface Card Specifications Interface Card...
Страница 337: ...System Cards 9 37 WAN Card WAN Card User Screens and Settings Figure 9 21 T1 WAN Cross Connect Screen display only...
Страница 352: ...9 52 System Cards Model No Running Head WAN Card Specifications WAN Card...
Страница 360: ...10 8 System Cards Model No Running Head Alarm Card Troubleshooting Alarm Cards...
Страница 382: ...11 22 Voice Cards Model No Running Head E M Card Specifications E M Card...
Страница 454: ...14 34 Data Cards Model No Running Head HSU Card User Screens and Settings HSU Card Figure 14 16 HSU Broadcast Screen...
Страница 474: ...14 54 Data Cards Model No Running Head HSU Card Specifications HSU Card...
Страница 484: ...15 10 Data Cards Model No Running Head OHSU Card Specification OHSU 4P Card...
Страница 536: ...18 8 Data Cards Model No Running Head DS0 DP Card Specifications DS0 DP Card...
Страница 596: ...21 38 Server Cards Model No Running Head IPR 4 Server Card Specifications IPR 4 Router Card...
Страница 614: ...22 18 Server Cards Model No Running Head ACS MCC Card Troubleshooting MCC Card...
Страница 644: ...24 18 Server Cards Model No Running Head PWE Card Troubleshooting PWE Card...
Страница 659: ...Reference Guide A 15 A 4 2 External Talk Battery Fuses Manufacturer Part NumberA3 Little Fuse 218 005 Bussman GDC 5...
Страница 674: ...A 30 Reference Guide Model No Running Head...
Страница 729: ...Pin Outs C 31 C 8 HSU Cards...
Страница 752: ...C 54 Pin Outs Model No Running Head...