NEC Univerge SV8500 Operation And Maintenance Manual page 276

2
Reason for changeover
b7 b6 b5 b4 b3
6
3
~ Status of ACT-side TSW card
b7 b6 b5 b4 b3
b2 b1 b0
b7-b4
0
6
b2 b1 b0
b0-b3, b4-b7: The status of TSW card in each MG (00~07)
b3-b0 CARD
1 TSW I/O Alarm
2 32ch Clock down, FH down
3 24ch Clock down, FH down
6 TSW SW Memory write failure
9 I/O Alarm release
10 32ch Clock down recovered,
FH down recovered
11 24ch Clock down recovered,
FH down recovered
13 TSW MBR key OFF
15 TSW ACT/STBY changeover by CMOD
command
1 MUX MUX circuit card Ready failure
2 MUX circuit card Clock failure
3
MG 00 MG 01
4
MG 02 MG 03
5
MG 04 MG 05
6 MG 06 MG 07
b7-b4 b3-b0
0000 = Normal
0001 = Abnormal (Impossible to make links)
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CHAPTER 3 System Messages
CONTENTS