User Guide

DEFINITY Enterprise Communications Server Release 5
Maintenance and Test for R5vs/si
555-230-123
Issue 1
April 1997
Maintenance Object Repair Procedures
Page 10-400DATA-CHL (Network Control Data Channel)
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(cont’d.)
4. If the result of Test #110 is PASS and the result of Test #111 is PASS for
the target DATA-CHL, then the most likely problem is that the arbitrarily
chosen DATA-CHL is defective.
■ Run the Short Test Sequence for each DATA-CHL that is not in use
for some other function. Note the test results for Tests #110 and #111
for each of them.
■ If the results of Tests #110 and #111 are both FAIL for at least one of
the other DATA-CHLs, investigate the possibility of a defective
arbitrarily chosen DATA-CHL.
a. Issue the remove data-module <ext> for each DATA-CHL for
which the results of Tests #110 and #111 were both FAIL to
remove the DATA-CHL from operation.
b. Repeat the test.
c. Replace the Network Control circuit pack at your earliest
convenience.
Replace the circuit pack as described in Chapter 5, "Routine
Maintenance Procedures".
After the Network Control circuit pack has been replaced, its
Time-of-Day clock must be set using the set time command.
■ If the results of Tests #110 and #111 are not both FAIL for any one of
the other DATA-CHLs that are not in use for some other function,
investigate the possibility of a defective TDM Bus as described in
Step 5.
5. If the result of Test #110 is FAIL and the result of Test #111 is PASS for
the target DATA-CHL, then the most likely problem is that the TDM Bus
or Tone-Clock circuit pack is defective.
■ Check for the existence of TDM Bus (TDM-BUS) and/or Tone-Clock
circuit pack (TONE-BD, TONE-PT, and TDM-CLK) errors and alarms.
If they exist:
a. Refer to the corresponding Maintenance documentation to
clear the errors and alarms.
b. Repeat the test.
■ If TDM Bus (TDM-BUS) and/or Tone-Clock circuit pack (TONE-BD,
TONE-PT, and TDM-CLK) errors and alarms do not exist, investigate
the possibility that the target DATA-CHL, the DATA-CON, or the
Network Control circuit pack is defective as described in Step 6.
Table 10-110. TEST #109 Data Channel Remote Maintenance Loop Around Test — Continued
Error
Code
Test
Result Description/Recommendation
Continued on next page