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MG-DS1 (DS1 Interface Media Module)
Issue 1 June 2005 1621
FAIL The MM710 interface Media Module detected a yellow alarm sent by the
remote DS1 endpoint. An out of frame condition occurred at the DS1
endpoint.
If the MM710 connects to a T1 network facility or to another switch, do
the following:
1. Verify that both endpoints of the DS1 link are administered using the
same signaling mode, framing mode, and line coding.
2. Check the physical connectivity of the MM710 packs and of the
cable.
3. Replace the local MM710 interface Media Module, and repeat the
test.
4. Contact T1 Network Service or a technician at the far-end switch to
diagnose the remote DS1 endpoint.
If the MM710 connects to a line-side terminating device (for example, a
PRI terminal adapter), do the following:
1. Verify that the switch DS1 and the line-side terminating device are
administered using the same signaling mode, framing mode, and line
coding.
2. Investigate the maintenance status of the line-side terminating
device. Refer to the 'Line-Side Terminating Device Operating Manual'
for information.
3. Check the physical connection of the MM710 interface Media Module
to the terminating device, and check the premise distribution system
(or the intra-premise wiring) for physical connection failures.
4. Replace the local MM710 interface Media Module and repeat the
test.
5. Contact the vendor of the line-side terminating device to diagnose the
equipment.
Table 595: TEST #141 Yellow Alarm Inquiry Test (continued)
Error
Code
Test
Result
Description/ Recommendation
3 of 6