Lucent Technologies DDM-2000 OC-3 User Manual

TAP-110 : Trouble Clearing 363-206-285
Page 1 of 2 Issue 2, February 2000
DDM-2000 OC-3 MULTIPLEXER
Clear Flashing FAULT LED Indication
1. Is the MN LED lighted on the User Panel?
If YES, then do TAP-112.
If NO, then continue with Step 2.
2. Is the MJ LED lighted on the User Panel?
If YES, then do TAP-102.
If NO, then continue with Step 3.
3. Is the CR LED lighted on the User Panel?
If YES, then do TAP-101.
If NO, then continue with Step 4.
4. Is the FAULT LED flashing on the faceplate of one or more DS1/DS1PM or
T1EXT circuit packs?
If YES, then continue with Step 5.
If NO, then proceed to Step 10.
5.
NOTE:
There is an incoming DS1 signal failure. This failure can be further
isolated using a CIT.
Connect the CIT to the connector on the User Panel and establish session.
Reference: DLP-521
6. Refer to the Commands and Reports section of this manual under RTRV-( )
and use the rtrv-( ) commands to further isolate the particular incoming
DS1 signal failure.
7. Switch service to protection. If LED is flashing on protection DS1/DS1PM or
T1EXT circuit pack, issue trouble report of bad incoming signal at input to
DS1/DS1PM or T1EXT circuit pack with flashing LED(s). If LED is not flashing
on protection DS1/DS1PM or T1EXT circuit pack, replace service
DS1/DS1PM or T1EXT circuit pack [DLP-523].
8. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
TAP-112
TAP-102
TAP-101
DLP-521

Lucent Technologies DDM-2000 OC-3 Specifications

General

Brand	Lucent Technologies
Model	DDM-2000 OC-3
Category	Multiplexer
Language	English