Nortel DMS 100 Series Maintenance Manual page 315

The following table lists the RSC-M cards that the XPM Diagnostic History
feature supports.
Table 8-5 Supported cards
Card name
NT6X78
NT6X92
NTMX75
NTMX77
How the feature stores diagnostics
This feature stores diagnostic results in the form of counters. Each unit of each
peripheral that this feature supports has a set of counters. The feature keeps
counters for diagnostic failures and for defective cards. The feature keeps
three types of counters:
• diag - the number of times a diagnostic fails
• card - the number of times the diagnostic reports a card as defective
• diag and card combination - the number of times a diagnostic and card
combination occurs
The feature keeps two subcounters for each of the three counters: a short term
failure counter, and a long term failure counter. The short term failure counters
are used by The XPM Diagnostic History feature uses the short term failure
counters to determine if a SWACT is correct. The system resets short term
failure counters are reset often during the PCL.
Long term failure counters record the diagnostic history of a peripheral or
office over a long period of time. The command string QUERYPM
DIAGHIST RESET or a BCS application resets long term failure counters.
A single test failure can report at least one diagnostic failures and at least zero
defective cards. A diagnostic that runs in one unit can report cards in that unit
and cards in the mate unit. When a diagnostic fails, each diagnostic routine
sends the failure information to the history database.
DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up
RSC-M trouble isolation and correction 8-27
Description
CLASS Modem Resource (CMR)
Universal Tone Receiver (UTR)
Matrix card
68020 Processor (UP)