NEC SV8500 Operation And Maintenance Manual - 1-P:

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CHAPTER 3

System Messages

1-P:

PLO Failure

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.

Note:

The PLO Card 0 automatically changes over to 1. The changeover of 1 to 0 is not automatic.

Self-CPU Restart Information

Valid Information bit for Scan 

Data 1

 Valid Information bit for Scan Data 

2

Reference:

 See Chapter 5 

PLO Card Replacement Procedure

 for the circuit card replacement procedure.

Default Alarm

Default Grade

Grade Modified

Lamp Modified

MN

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