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
!
WARNING:
Unterminated optical connectors may emit laser radiation. Do not view beam with
optical instruments.
!
WARNING:
Invisible laser radiation when open. Avoid direct exposure to beam.
Loopback OC-12 Shelf
(1) If the DDM-2000 OC-12 is a remote terminal (RT), change the timing mode on
the BBF2B/BBF2C/BBF4 TGS circuit packs from “line timed” to “free running”
(refer to Chapter 3). When the timing mode is changed, press the UPD/INIT
push-button on the SYSCTL after the change is complete.
(2) Remove each 23G-U OLIU circuit pack from the shelf and replace the 0 dB
lightguide buildout (LBO) assembly of the OUT (transmit) connector on each
23G-U OLIU with a 15 dB buildout assembly per the following table and Figure
6-2 on page 6-34.
!
CAUTION:
Do not install optical loopback cables without 15 dB lightguide buildouts as
this will cause damage to the receivers.
23G-U Lightguide Buildouts
Lightguide
Buildout (LBO)
Code
Comcode
ConnectorType
15 dB
A3060F
106708985
SC
15 dB
A3070F
106795388
ST
15 dB
A3080F
106795438
FC/PC
Summary of Contents for DDM-2000 OC-12
Page 4: ......
Page 370: ...GL 22 Issue 5 June 2000 363 206 208 Glossary ...
Page 382: ...363 206 208 Index 1 ...