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DEFINITY Enterprise Communications Server Release 6
Maintenance for R6vs/si
555-230-127
Issue 1
August 1997
Maintenance Object Repair Procedures
Page 10-503DS1-BD (DS1 Interface Circuit Pack)
10
FAIL The DS1 Interface circuit pack detects a Red alarm. An out-of-frame condition
occurs on the DS1 Interface circuit pack. DS1 Interface circuit pack will
transmit a Yellow alarm to the remote DS1 endpoint until the Red alarm is
retired.
1. Verify that both endpoints of the DS1 link are administered using the same
signaling mode, framing mode, and line coding. Likewise, verify that any
intermediate CSU’s are administered correctly.
2. If the DS1 interface circuit pack connects to a T1 facility, call the vendor of
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.
3. Check the physical connectivity of the DS1 pack and of the cable.
4. Replace the local DS1 interface circuit pack, and repeat the test.
1 FAIL The DS1 interface circuit pack detected a loss of multiframe alarm (LMA). An
out of frame condition occurred on the DS1 interface circuit pack. The DS1
interface circuit pack will transmit a remote multiframe alarm (RMA) to the
remote DS1 endpoint until the LMA is retired.
1. Verify that both endpoints of the DS1 link are administered using the same
signaling mode, framing mode, and line coding. Likewise, verify that any
intermediate CSU’s are administered correctly.
2. If the DS1 interface circuit pack connects to a T1 facility, call the vendor of
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.
3. Check the physical connectivity of the DS1 pack and of the cable.
4. Replace the local DS1 interface circuit pack, and repeat the test.
PASS No Red alarm is detected on DS1 Interface circuit pack.
Table 10-167. TEST #140 Red Alarm Inquiry Test — Continued
Error
Code
Test
Result Description/ Recommendation
Continued on next page