PRI-CDR/SEC-CDR (PRI-CDR Link)
Issue 4 May 2002
10-1411555-233-123
3. Is the destination an extension or the EIA port?
If the destination is an extension number, then enter the status data
extension command and verify whether the data extension is in the
in-service/idle state. If the data extension is NOT available, then look for
the extension number in Alt Name field of Hardware Error Log and refer to
XXX-BD (Common Port Circuit Pack) Maintenance documentation for
resolutions.
If the destination is “eia,” then look for PR-MAINT errors in the Hardware
Error Log. If present, refer to PR-MAINT (Maintenance/Tape Processor)
Maintenance documentation.
4. Is a data channel on TN777 Network Control circuit pack in the
in-service/idle state?
Enter list data command and find out the extension numbers of data
channels on TN777 Network Control circuit pack. Enter status data
extension command and make sure that at least one data channel is in the
in-service/idle state. If no data channel is available, then look for
DATA-CHL/DATA-CON/DATA-BD errors in the Hardware Error Log. If
present, refer to DATA-BD (Network Control Circuit Pack).
5. Is the external CDR output device available?
Make sure that the CDR output device is on-line and ready for service.
Check the physical connectivity between Data Module and the CDR output
device or between the EIA port on backplane of the switch and the CDR
output device.
It is recommended to busy out the CDR link before executing maintenance tests
over the CDR link. If the CDR link is busied out, then all CDR link maintenance
actions are deactivated. The interference to tests of other MO is off.
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