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CONDITION
RESULTS
S
CONSOLE A
CONSOLE B
T
ACTION
KEY
LAMP
REMARKS
LAMP
E
P
DESIG
OPR
NITE
NilE
PBX Set For Night Service
1
Idle condition
e
e
2
At atnd console -
NITE
0
0
0
Set PBX into night service
3
At PBX cabinet A -
Set PBX to emergency transfer condition -
0
GADA lamp lighted
0
Operate TRA switch
4
Incoming signal from CO
0
At emergency transfer station -
0
Ringer heard
Ringer silenced
5
At emergency transfer station -
0
Conversation satisfactory between
0
Answer call
emergency transfer station party
and CO party
6
At emergency transfer station and-CO-
0
0
Disconnect from call
7
Atemergency transfer station-
0
0
Remove handset from switchhook
- -
- -
8
Momentarily operate auxiliary ground
0
CO dial tone heard
0
start key
9
Dial number of lOOO-Hz test tone
0
1000-Hz test tone heard
0
10
At PBX cabinet A---
GADA lamp extinguished
Restore PBX to normal condition
~
0
At emergency transfer station -
0
Restore TRA switch
lOOO-Hz tone heard
."
Q
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CD
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----,
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TABLE M
EMERGENCY TRANSFER
(See 1.04, 1.05, 1.06, and 2.03)
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