363-206-285 Detailed Level Procedure: DLP-503
Issue 2, February 2000 Page 10 of 10
DDM-2000 OC-3 MULTIPLEXER
6.
NOTE:
If the timing mode option switches are not set the same on the two
TGS/TG3 circuit packs, the FAULT LED will remain lighted on the second
circuit pack installed.
Install second (protection) TGS/TG3 in TIMING slot 2.
Response: FAULT LED on TGS/TG3 lights for about 15 seconds then
goes off. ACTIVE LED remains off.
7. Is timing mode set to external DS1?
If YES, then continue with Step 8.
If NO, then STOP. YOU HAVE COMPLETED THIS PROCEDURE.
8. If the NE ACTY LED on the User Panel remains on, use the CIT command
rtrv-sync to verify that the operational mode of the system is External.If
the operational mode is Holdover, check the DS1 timing references.
9. STOP. YOU HAVE COMPLETED THIS PROCEDURE.
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