Lucent Technologies DDM-2000 OC-3 Installation Manual

363-206-204
Operational Tests
Issue 9 October 1998
10-5
Procedure
1. Press and hold the TEST button on the front of the fan shelf until the four
FAN FAULT LEDs and the FILTER REPLACE LED on the front of the fan
shelf light.
2. Depress the RESET button on the fan shelf and verify the FAN FAULT
LEDs and the FILTER REPLACE LED on the fan shelf extinguish.
3. Disconnect one of the power feeds (either A or B) to the fan shelf by discon-
necting one of the connectors of the fan shelf power cable from its mate on
the bay power cable.
4. Verify the POWER FAULT LED lights on the fan shelf and the MN alarm
and NE ACTY LEDs light on the DDM-2000 OC-3 shelf user panel.
5. Reconnect the disconnected fan power cable connector. Depress the
RESET button on the fan shelf and verify that the POWER FAULT LED
extinguishes on the fan shelf and the MN and NE ACTY LEDs on the
DDM-2000 OC-3 shelf user panel extinguish.
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. All protected
circuit packs will be tested.
NOTE
:
A wrist strap must be worn while handling circuit packs.
NOTE
:
This test can be performed with the DDM-2000 OC-3 configured for normal
end-to-end transmission (or rings) or with the optical line interface units
(OLIUs) looped back on themselves (that is, the OLIU OUT connected to
the OLIU IN).
NOTE
:
This test should be performed on all shelves.
NOTE
:
Prior to performing each test, the shelf under test must be clear of all
alarms (that is, only green LEDs are lighted).

Lucent Technologies DDM-2000 OC-3 Specifications

General

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