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TOGGLE SWITCH LEFT TO SWITCH A XMTR,
RCVR, OR I/O MODULE IN-SERVICE AND
TOGGLE SWITCH RIGHT TO SWITCH B
XMTR, RCVR, OR I/O MODULE IN-SERVICE.
NOTE
OVERRIDE (OVRD) LOCKS XMTR, RCVR, OR
I/O MODULE, SELECTED ABOVE IN-SERVICE,
REGARDLESS OF ALARMS.
TO ENABLE OVERRIDE:
1. PRESS AND HOLD TX A/B ON LINE,
RX A/B ON LINE, OR I/O A/B ON LINE
SWITCH.
2. TOGGLE ACO/LT OVRD SWITCH TO OVRD
POSITION.
3. RELEASE A/B ON LINE SWITCH.
TO DISABLE OVERRIDE:
TOGGLE ACO/LT OVRD SWITCH TO OVRD
POSITION.
Figure 2-1 Manual Switch From Controller Front Panel
ALM
OFF
NORM
SHLF
ALM
ALM
ON
TX
LINE
L
A
B
ALM
ON
RX
LINE
L
A
B
ALM
ON
I/O
LINE
L
B
A
POLL
RSP
LCL
RMT
RSP
A
C
O
V
O
/
R
L
D
T
CMD
RF
RPTR
IDLE
T
E
L
U
S
I
LMW-5078-sm
08/15/02
2-3
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Table of Contents
Troubleshooting
