Avaya Communication Server 1000M Single Group Manual page 99

1. Configure all mini- carrier links by executing the S C (Set Configuration) command.
2. Identify the circuit ID for carrier 0 at the T1 network demarcation point and connect
3. Observe the mini-carrier alarm LEDs on the faceplate of the RMI. Initially, mini-
4. Test the carrier 0 link by executing the mini-carrier status commands (D S — display
5. Disconnect the patch cable from the I/O cable connector for carrier 0 that was just
6. Any carrier faults must be isolated and corrected. In case of mismatched carriers,
Mini-Carrier Remote Fundamentals
Any unused mini-carrier links must be configured as "unequipped" to prevent the
mini-carrier alarm LED from being constantly ON. Default parameters should not
be changed without good reason. Execute the D C (Display Configuration)
command to verify the configuration.
the corresponding patch cable to the I/O cable connector (8-pin modular jack) for
carrier 0.
carrier alarm LEDs for all equipped mini-carrier links should be ON due to Loss-of-
Signal. The LED for carrier 0 should be turned OFF approximately 10 seconds after
the patch cable for the selected carrier 0 is plugged into the RMI I/O cable connector
for carrier 0.
If a good quality signal is received by both the RMI and the LMI on carrier 0, the link
is installed in the appropriate I/O cable connectors at both ends. If the connection
is mismatched (carrier 0 at one end connects to carrier 1 at the other end), the alarm
LED will remain ON.
The LED also remains ON if there is a carrier alarm on the RMI (near-end), however,
the LED is turned OFF if there is no carrier alarm on the RMI (near-end) and
communication cannot be established across the link due to an alarm on the LMI
(distant end).
Distant-end carrier alarms cause the near-end LED to turn ON only if the RMI and
LMI can communicate.
mini-carrier status and D S D — display mini-carrier status distant) using the MMI
terminal. Compare the mini-carrier status on both the RMI (near-end) and the LMI
(distant-end). Refer to "Configuring the carriers," on page 76 to see the displays of
these two MMI commands. There are four possible conditions:
• If the LED for carrier 0 is OFF and the RMI and LMI have established signaling
communication, both ends will show "No Alarm" for carrier 0 and "Loss of
Signal" for carrier 1. There is no mismatch.
• If the LED for carrier 0 stays ON due to a mismatch, the LMI (distant-end) will
show "Loss of Signal" for carrier 0 and "No Alarm" for carrier 1.
• If the LED for carrier 0 stays ON due to a carrier alarm condition on the RMI
(near-end), the D S command will show the type of carrier alarm on carrier 0,
and the D S D command cannot retrieve the distant-end status.
• If the LED for carrier 0 RMI (near-end) is OFF but the RMI and the LMI cannot
establish communication due to a carrier alarm condition on the LMI (distant-
end), the D S command will show "No Alarm" on carrier 0 on the RMI (near-
end), and the D S D command cannot retrieve the far-end status.
tested and repeat steps 1 through 5 for carrier 1 as equipped before proceeding to
step 6.
the patch cables must be traced to the demarcation point at each end, and the
Verifying mini-carrier links at the remote site
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