Lucent DDM-2000 OC-3 User And Service Manual page 628

363-206-285
Issue 2, February 2000
42.
NOTE:
A major alarm may also be caused by a wrong circuit pack inserted into
the AUXCTL slot, DS1 line code switch settings that are different from
what they were before a DS1/DS1PM circuit pack was replaced,
excessive holdover due to loss of synchronization reference, or a manual
switch to holdover in effect too long.
Is any circuit pack except an OHCTL installed in the AUXCTL slot?
If YES, then continue with Step 43.
If NO, then proceed to Step 45.
43. Remove wrong circuit pack from AUXCTL slot and install correct OHCTL
circuit pack [DLP-523].
44. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
!
45.
CAUTION:
If a DS1 is switched to protection, removal of any other DS1/DS1PM
circuit pack or 177P Retainer Card in the same group will result in a loss
of service to the protected DS1 and the removed DS1/DS1PM circuit
pack.
Has an unprotected DS1/DS1PM circuit pack or more than one DS1/DS1PM
circuit pack been removed from the system?
If YES, then continue with Step 46.
If NO, then proceed to Step 48.
46. Determine the reason the circuit packs were removed. If the same circuit
pack(s) is to be reinserted and no switch settings are changed, reinstall the
circuit pack. If the circuit pack was removed and switch settings changed,
reinstall the circuit pack and momentarily depress the UPD/INIT button on the
SYSCTL. If the circuit pack is not to be reinserted, momentarily depress the
UPD/INIT button on the SYSCTL to remove the circuit pack from the inventory.
47. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
DDM-2000 OC-3 M
Trouble Clearing:
ULTIPLEXER
TAP-102
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