NEC UNIVERGE SV8500 - O both PLO Failure

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CHAPTER 3 System Messages
1-O: Both PLO Failure
This message displays when the system detects a fault, such as input clock all down or output clock down in the
PLO cards, at both sides.
Detected PLO number
Valid Information bit for Scan
Data 1
Valid Information bit for Scan
Data 2
Reference: See PLO Card Replacement Procedure, for the circuit card replacement procedure.
Default Alarm Default Grade Grade Modified Lamp Modified
MJ 3
1: XXXX XXXX XX00 0000 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
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
b7 b0
b7 b6 b5 b4 b3 b2 b1 b0
b7 b6 b5 b4 b3 b2 b1 b0
1 2
3
4
5
b0: 0/1 = PLO 0/PLO 1
1
b0-b7: Bit position corresponding to the detected information in Scan Data 1
( ) is flagged “1”.
4
2
b0-b7: Bit position corresponding to the detected information in Scan Data 2
( ) is flagged “1”.
5
3