PDH option card test
Overview
This test verifies that the option card has been installed properly and that its function is
correct.
If a DDF is applicable then the cabling and connections of the option card ports with
complementary wiring is tested according to the site depending information, and the port
labeling is tested on the DDF whether it matches the correct port number.
This test includes a BER test for each option card tributary port, and a port alarm test.
Estimated duration
20 minutes.
Remarks
If the installation includes a DDF then the interface test must be done from the DDF.
For 1.5 Mbit/s (DS1) and 45 Mbit/s (DS3) ports: since the pulse shape for these signals is
defined at the DDF, the cable length between the port and the DDF can be compensated
for each port output (menu:
Port Provisioning
,
Cable length
). By default the cable
compensation is set to 0-131 feet (DS1) or 0-120 feet (DS3). In this test the PDH analyzer
receiver will deal with the cable loss, only because it is connected close to the DDF.
However for each port the length between port and DDF should be estimated and
compensated by selecting the proper length range before the other side is connected.
Test setup
The following figure illustrates a possible test setup:
ote:
For a long haul laser (L11, L12, L41 or L42) a 10 dB attenuator with
applicable connector is required in the loop
Figure 7-3 PDH option card test
Stand-alone test procedures
PDH option card test
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7-12
Alcatel-Lucent – Internal
Proprietary – Use pursuant to Company instruction
365-313-103R8.0
Issue 2
July 2009
