...................................................................................................................................................................................................
2
Set the Alarm Reporting/Severity of E12cNES (2 Mbit/s Not Expected Input Signal)
alarm from reported “No” to “
Yes”.
...................................................................................................................................................................................................
3
Set the PDH analyzer to 2 Mbit/s, 2
15-1
PRBS pattern. Connect the PDH analyzer to the
first tributary port. Start a BER test.
...................................................................................................................................................................................................
4
To check for bad contacts of the installed cable move each separate cable gently (or
tap on it with your fingers) near the connector at both ends, while monitoring the
analyzer for error free transmission.
...................................................................................................................................................................................................
5
Display the raised alarm list on the ITM-CIT, and verify that the requirements
mentioned in the table below are met.
Result:
Requirements
LEDs on the 1643 AM/AMS:
Power: On
Fault: Off
PDH analyzer: No errors detected
Alarms reported on the ITM-CIT: “E12cNES”, 2 Mbit/s Not Expected Input
Signal
...................................................................................................................................................................................................
6
Check if the slot and port number of the NES alarm source corresponds with the
physical position on the DDF to which the analyzer is connected.
...................................................................................................................................................................................................
7
Disconnect the incoming signal from the port under test.
...................................................................................................................................................................................................
8
Repeat this test for all present E1 tributary ports.
Cleaning up
The following tasks must be performed to clean up the system:
• Reset the alarm reporting settings of E12cNES (2 Mbit/s Not Expected Input
Signal) to default (Not Reported)
• Delete all cross-connections.
Stand-alone test procedures
E1 tributary ports distribution wiring test
...................................................................................................................................................................................................................................
7-8
Alcatel-Lucent - Proprietary
See notice on first page
365-312-802R7.2
Issue 4, June 2007
E ND OF STEPS
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