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ADCP-61-471 • Issue 4 • June 2000 • Section 2: Operation and Maintenance
2-51
© 2000, ADC Telecommunications, Inc.
DLP-513
Page 1 of 2
ODS2 MODULE FORCED SWITCH TEST THROUGH THE CRAFT INTERFACE
Summary:
This procedure provides instructions for verifying that the force-to-protect feature of
the ODS2 module is working. Both working (online) and protect (offline) ODS2 modules are
tested.
Warning:
Do not insert module edge connectors into the chassis connectors before
connecting the optical fiber to the module. Exposure to invisible laser radiation may
occur if the module edge connectors are allowed to connect with the chassis connectors
before connecting the optical fiber to the module. Verify that all indicators are dark (off)
and the module is not engaged with the chassis connectors before proceeding.
Warning:
Verify that module is completely disconnected from the chassis connectors
before removing the optical fiber from the module. Verify that the far end transmitter is
off before proceeding. Exposure to invisible laser radiation from the optical fiber is
possible if the far end transmitter is transmitting. Verify that all indicators are dark (off).
Caution:
Modules can be damaged by electrostatic discharge (ESD). Before handling
any modules, ESD protection must always be used. Ensure that all modules removed
from the chassis or not installed are properly stored in anti-static packing material.
When working with modules, always place the module on an electrically-grounded,
approved, anti-static mat.
1. Set up the chassis and a remote QFLC or QLX chassis, then perform end-to-end tests
between chassis and the remote chassis.
Reference:
DLP-510 ODS2 Distribution System and QFLC/QLX Chassis End-to-End
Tests
2. Identify the offline ODS2 module of the working and protect pair to be tested. Its STATUS
indicator is green and is the only illuminated indicator (its ONLINE indicator is
extinguished).
3. Slide the offline ODS2 module part way out; this disconnects the offline module from the
chassis and ensures that data passes through the online ODS2 module only.
4. Perform end-to-end test and verify error-free data.
Reference:
DLP-510 ODS2 Distribution System and QFLC/QLX Chassis End-to-End
Tests
5. Using the ODS2 module ejector, press the module into the chassis until it is properly seated.
6. Verify that the STATUS indicator on offline ODS2 module is green and its ONLINE
indicator is extinguished.