Nortel Meridian Companion, Руководство по установке и обслуживанию

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Page 174 of 206 Troubleshooting
553-3601-220 Standard 4.00 November 1998
Troubleshooting an alarm
Table 41 : Alarm troubleshooting
Alarm Meaning Possible causes and actions
Alarm:10
All TCM devices,
including the
Administration
Terminal, have been
disconnected from
the CMCC. This alarm is usually discovered after the problem
has been corrected (because the Administration
Terminal is nonfunctional while the alarm is
active). If it occurs unexpectedly
1. Verify that the 25-pair cable connector is
inserted properly.
2. If there are TCM devices connected to the
system, check all the wiring associated with
these TCM devices.
Alarm:11
The internal circuitry
has failed. The CMCC is defective
Replace the CMCC (follow the instructions on
page 158).
Alarm:23-xx
Cell
xx
is out of
service because
there are no
operational radios in
that cell.
This alarm occurs only at the end of System
Reevaluation. During the last step of
reevaluation, or after a system restart, as the
system was activating cell
xx
for use, it could not
find a radio to serve as a CSC.
Check for the presence of the Base Station in cell
xx
. If the Base Station is present and in
maintenance state, execute System
Reevaluation. If the Base Stations do not appear,
check the wiring and power. Replace the Base
Station if it is defective. After replacement,
reexecute System Reevaluation.