NEC Univerge SV8500 Operation And Maintenance Manual page 373

[4AH] CPU ACT/STBY Changeover Failure (No Answer Error)
1: 4AXX 0000 XXXX XXXX 2: 0000 0000 0000 0000 3: 0000 0000 0000 0000
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
Error detection by Routine
Diagnosis
2
ACT system after changeover
b7
3
Data Analyzed by NEC Engineers
3
[4AH] CPU ACT/STBY Changeover Failure
(No Answer Error from other processor when changeover is
requested)
b0: CPU
0/1 = ACT 0/ACT 1
b1 b0
b1: TSW
0/1 = ACT 0/ACT 1
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CHAPTER 3 System Messages