Avaya S8700 Maintenance Manual page 1327

DS1-BD (DS1 Interface Circuit Pack)
Table 8-245. Test #138 Loss of Signal Alarm Inquiry Test
Error Test
Code Result Description / Recommendation
ABORT Internal system error
2100 ABORT Could not allocate the necessary system resources to run this test.
1. Retry the command at 1-minute intervals up to 5 times.
2000 ABORT Response to the test was not received within the allowable time period. This
may be due to hyperactivity. Error type 1538 in the error log indicates
hyperactivity. The hyperactive circuit pack is out of service and one or more of
the following symptoms may be exhibited.
1. The DS1-BD tests (such as test 138 and test 139) are aborting with error
2. The tests run on the ports of this circuit pack are returning a no board
3. A busyout or a release command has no affect on the test results.
4. A list config command shows that the circuit pack and the ports are
FAIL DS1 Interface circuit pack detects a Loss of Signal alarm. The physical link is
broken or the remote DS1 endpoint is down. All trunks or ports of this DS1
interface circuit pack are out-of-service. If the DS1 Interface circuit pack is
designated as the supplier of the system synchronization source, then the
system synchronization maintenance will adopt a source elsewhere. Refer to
"SYNC (Synchronization)" section for details.
1. If the DS1 Interface circuit pack connects to a T1 facility, call the vendor of
2. Check the physical connection of the DS1 Interface circuit pack and the
555-233-143
code 2000.
result.
properly installed.
NOTE:
When hyperactivity occurs, the circuit pack is isolated from the system,
and all of its trunks are placed into the out-of-service state. The system
will try to restore the circuit pack within 15 minutes. When no faults are
detected for 15 minutes, the DS1 interface circuit pack is restored to
normal operation. Every DS1 interface trunk is then returned to the
in-service state. Hyperactivity is often caused by the associated facility.
In such a case, faults (such as slips, misframes, or blue alarms) would
be entered in the error log. In addition, many hardware errors would be
logged against the associated trunk circuits. If the facility is OK and the
error occurs again after 15 minutes, escalate this problem.
the T1 carrier to diagnose the remote DS1 endpoint. If the DS1 Interface
circuit pack connects directly to a switch, call the system technician of the
remote switch to diagnose the DS1 endpoint.
cable. If a 120A1 CSU module
a TN767E board behind the port carrier, check the physical connection of
/T1 sync splitter
the CSU module
cable is plugged into the CSU module's/T1 sync splitter's NETWORK jack.
/T1 sync splitter
is physically connected to
, and make sure the Network Interface
Continued on next page
Issue 1 May 2002 8-605