NEC SV8500 Operation And Maintenance Manual - page 470
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CHAPTER 3
System Messages
23-Z: Both MUX Clock Failure
This message displays when the MUX card has a clock failure in both of the dual systems.
MUX card location
Scan Data 1
Scan Data 2
Reference:
See Chapter 5
for the circuit card
replacement procedure.
Default Alarm
Default Grade
Grade Modified
Lamp Modified
MN
3
1:
XXXX
XX00
0000
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
b2
b1
b0
b7
b3
b2
b1
b0
b7
b3
b2
b1
b0
1 2
3
b0-b1: Unit number
b2:
MG number
1
Scan Data 1:Details on clock alarm information (ACT mode)
b1:
0/1 = -/FH failure for 2M PCM Highway
b2:
0/1 = -/CLK failure for 2M PCM Highway
b3:
0/1 = -/4M CLK failure for PM
2
Scan Data 2:Details on clock alarm information (STBY mode)
b1:
0/1 = -/FH failure for 2M PCM Highway
b2:
0/1 = -/CLK failure for 2M PCM Highway
b3:
0/1 = -/4M CLK failure for PM
3