Nortel DMS 100 Series Maintenance Manual page 307

Hard parity fault
fault to the CM, the CM generates a PM181 information log. This log notifies
operating company personnel of the following events:
• a parity fault occurred on the active unit, and the unit is ISTb
• the CM reloads the unit during the next XPM REX test window
You can perform a manual SWACT and reload to clear the ISTb and the parity
fault.
An example of a PM181 log report follows:
PM181 JUL23 23:29:16 7700 INFO RCO2 0 Unit 0
Node: Istb, Unit0 Inact: ISTb, Unit1 Act: ISTb
Parity audit has detected a hard parity fault.
The system will autoload the unit during the next
XPM REX test window.
Monitor the system for maintenance and recovery.
Site Flr
RAL1 00
When a unit changes state to ISTb of UP RAM parity fault, the system
generates a PM128 log report. This log informs operating company personnel
that the unit changed state.
An example of a PM128 log follows:
*PM128 MAY09 09:49:56 9000 TBL ISTB RCO2 1
Node: ISTb (Unit ISTb)
Unit0 Inact: InSv
Unit1
The command string QUERYPM FLT displays the faults on a posted XPM.
The following example MAP response indicates that a hard parity fault is
present in unit 1 of the posted XPM:
>querypm flt
Node is ISTb
One or both Units inservice trouble
Unit 0
no fault exists
Unit 1
The following inservice troubles exists:
Parity audit has detected a hard parity fault.
A reload is required to clear this fault.
The system will autoload this unit during the next
XPM REX test window.
DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up
When the active unit of the XPM reports a hard parity
RPos Bay_id Shf Description Slot
C05 CMVI 00 18
Act: ISTb (UP RAM Parity)
RSC-M trouble isolation and correction 8-19
RCO2 : 000 3
EqPEC
MX74