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2
Dehydrator Alarm Cable Connections
Alarm signal cable
System control
board of the IDU
•Install the alarm signal cable based on the interface-cable mappings and pin assignments described in the tables
above.
Port No.
7
Orange and white
8
Orange
13
Green and white
14
Green
Pin assignments of the alarm port on the system control board of RTN 980 L
Pin
Wire
No.
Color
1
Orange
Alarm signal input 1
and
white
2
Orange
Ground end of alarm
signal input 1
3
Green
Alarm signal input 2
and
white
4
Blue
Alarm signal input 3
Orange
Orange and white
Dehydrator alarms
Wire Color
POWER FAIL NO
POWER FAIL COM
SUMMARY NO
SUMMARY COM
Alarm Output
12
11 10
9
8
15
Alarm
Pin
Color
No.
5
Blue and
white
6
Green
7
Brown and
white
8
Brown
49
7
6
5
4
3
2
14 13
Green and white
Green
Peer Pin in the Alarm Port
1
2
3
6
Alarm Output
Ground end of alarm signal
input 3
Ground end of alarm signal
input 2
Alarm signal output (+)
Alarm signal output (-)
1
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