NEC SV8500 Operation And Maintenance Manual - page 315
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CHAPTER 3
System Messages
-
Station number of testing station
(See table.)
Tenant number
b7
b6
b5
b4
b3
b2
b1
b0
b7
b3
b2
b1
b0
b0-b3: Number of digits of the testing station number
b4-b7: Error Numbers (See table.)
Error Numbers and Their Meanings
ERROR
NO.
MEANING
0
---
1
The testing station is restricted from activating the service.
2
Route Number error of the designated trunk
3
Trunk Number error of the designated trunk
4
Trunk busy
5
Sender busy
6
SMDR failure
7
Call origination restriction
8
Register busy
9
Trunk number error - when the trunk has been designated
by SHF.
A
Trunk busy - when the trunk has been designated by SHF.
B
Inter-digit timer expiration
C
Register or sender is defective with respect to DP, DP/PB
D
Register of sender is faulty with respect to PB
E
Tone fault
F
Test Processing error
2
b4-b7
b0-b3
DC0
DC1
DC2
DC3
DC4
DC5
3
4
5
3 5
b0-b3: Tenant (1-15)
b7:
OP
0/1 = Data in OPTN (
) is invalid/valid
7
6