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ADCP-61-471 • Issue 4 • June 2000 • Section 2: Operation and Maintenance
2-48
© 2000, ADC Telecommunications, Inc.
DLP-511
Page 1 of 1
DS3 MUX FORCED SWITCH TEST
Summary:
This procedure provides instructions for testing the forced-switch capability of the
DS3 MUX in the Soneplex Broadband system. An end-to-end data path test is also performed
using only the working DS3 MUX. The forced-switch occurs first to bring the Protect DS3 MUX
online, then the end-to-end data path test is repeated.
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. Identify the offline DS3 MUX; its STATUS indicator is green and its ONLINE indicator is
extinguished.
2. Hold ENABLED button down and momentarily press LMPTST/APS on offline DS3 MUX.
3. Verify that the DS3 MUX that was offline is now online (its ONLINE indicator is now
green) and DS3 MUX that was online is now offline (its ONLINE indicator is
extinguished).
4. Verify that APS indicator on online DS3 MUX is yellow indicating a forced switch and
APS disabled.
5. Repeat Step 2 and verify that APS indicator is off.
6. Perform end-to-end test and verify error-free data.
7. Set up the chassis and perform end-to-end tests between chassis and remote unit.
Reference:
DLP-510 ODS2 Distribution System and QFLC/QLX ChassisEnd-to-End
Tests
Reference:
DLP-520 HLXC and HLXR End-to-End Tests
Reference:
DLP-522 DLX- or RLX-Equipped Circuit End-to-End Tests
Stop! You have completed this procedure.