P Plo Failure - NEC Univerge SV8500 Operation And Maintenance Manual

1-P: PLO Failure
Default Alarm
MN
This message displays when the system detects all the failures concerned with input clock down or output clock
down in the PLO card at the ACT side. When this message is indicated, the PLO card changeover executes.
The PLO Card 0 automatically changes over to 1. The changeover of 1 to 0 is not automatic.
Note:
1:
XXXX XXXX XX00 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
3 4
1 2
4: 0000 0000 0000 0000 5: 0000 0000 0000 0000 6: 0000 0000 0000 0000
7: 0000 0000 0000 0000 8: 0000 0000 0000 0000 9: 0000 0000 0000 0000
1
Self-CPU Restart Information
b7
2
Valid Information bit for Scan
Data 1
b7 b6 b5 b4 b3
3
Valid Information bit for Scan Data
2
b7 b6 b5 b4 b3
Reference: See Chapter 5
Default Grade
3
5
b0:
b0
b0-b7: Bit position corresponding to the detected information in Scan Data 1
b2 b1 b0
b0-b7: Bit position corresponding to the detected information in Scan Data 2
b2 b1 b0
PLO Card Replacement Procedure
Grade Modified
0/1 = PLO 0/PLO 1
4
( ) is flagged "1".
5
( ) is flagged "1".
for the circuit card replacement procedure.
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CHAPTER 3 System Messages
Lamp Modified