DATA-CHL (Data Channel)
Issue 4 May 2002
10-495 555-233-123
.Data Channel Crosstalk Test (#110)
This non-destructive test verifies the integrity of the entire DATA-CHL. Unlike the
Remote Maintenance Looparound Test (#109), this test only involves the target
DATA-CHL.
The test establishes a looparound connection over the DATA-CHL, to test the
DATA-CHL as a sender receiver of data. The test checks that the data received by
the DATA-CHL is the same as the data that was sent by the DATA-CHL. Because
the looparound connection is across the TDM Bus, this test also verifies the
integrity of the TDM Bus and Tone-Clock circuit pack.
40
41
2000
2003
2004
FAIL
(cont’d.)
Test #110 result is either PASS or FAIL and Test #111 result is
FAIL (for target DATA-CHL): the target DATA-CHL, or Netcon or
NetPkt circuit pack are probably defective.
Busyout the links to all DATA-CHLs (busyout link).
Test the target DATA-CHL (test data-module ext long).
If Test #107 result or Test #108 is FAIL, replace the Netcon or
NetPkt circuit pack when convenient.
Reset Time-of-Day clock on new circuit pack (set time).
Repeat the test.
If Test #107 result is PASS, and Test #108 result is FAIL,
Replace the Netcon or NetPkt circuit pack when convenient.
Repeat the test.
If both Test #107 result and Test #108 results ARE PASS, the
target DATA-CHL is defective.
Remove target DATA-CHL from operation (remove
data-module ext).
Replace the Netcon or NetPkt circuit pack when convenient.
Reset Time-of-Day clock on new circuit pack (set time)
Restore any busied out links.
PASS Connections can be established over the DATA-CHLs.
Table 10-181. TEST #109 Data Channel Remote Maintenance Loop Around
Test — Continued
Error
Code
Tes t
Result Description/Recommendation
Continued on next page
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