Lucent Technologies DDM-2000 OC-12 Installation Manual

 Issue 5 November 2000
363-206-208
Stand-Alone (Local) Installation Tests for the DDM-2000 OC-12 Multiplexer
Lucent Technologies - Proprietary
See Notice on first page
Automatic Protection Switching and Alarm
Test
Description
This test DOES NOT simulate circuit pack failures. This test will verify proper alarm
reporting and LED indications when circuit packs are removed.
The following circuit packs are protected and will be tested:
 BBF2B, BBF2C or BBF4 TGS circuit pack
 BBG11B 3DS3 circuit pack
 BBG12 3STS1E circuit pack
 21G3-U circuit pack
 21D-U circuit pack
Perform this test on all shelves.
NOTE:
A wrist strap must be worn while handling circuit packs.
NOTE:
Verify that the OLIUs are looped back on themselves (that is, the OLIU OUT is
connected to the OLIU IN).
NOTE:
Prior to performing each test, the shelf under test must be clear of all alarms (that
is, only green LEDs are lighted). If alarms do not clear, refer to the "Troubleshoot-
ing" section of this manual.
NOTE:
The office alarm cable on the backplane (J63) of the DDM-2000 OC-12 may be
disconnected so that office alarms are not activated during testing.
BBF2B/BBF4 TGS Protection Switch
(1) Unseat the active TGS circuit pack. The ACTIVE LED on the other TGS circuit
pack and the MN and NE ACTY alarms on the user panel should light.
(2) Unseat the second TGS circuit pack. On the user panel, the MN alarm should
extinguish and the CR alarm should light.

Lucent Technologies DDM-2000 OC-12 Specifications

General

Brand	Lucent Technologies
Model	DDM-2000 OC-12
Category	Multiplexer
Language	English