Flex 620
Installation - Revision 5, 11/22/01
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51
WIRING GUIDELINES
SIGNALLING CIRCUIT WIRE SIZES 24 VOLT DC PARALLEL
WIRE RESISTANCE
PAIR IN DISTANCE TO LAST DEVICE
(MAXIMUM LINE LOSS 10%)
AWG OHM/1000
0.5amp
1.0amp
1.5amp 2.0am
p
18 6.5
400'
200'
130' 100'
16 4.1
620'
300'
210' 160'
14 2.6
1000'
500'
330' 250'
12 1.6
1600'
800'
520' 400'
10 1.0
2500'
1250'
840' 620'
CIRCUIT CHARACTERISTICS
CIRCUIT EOL
LINE
RESISTANCE
CABLE TYPE
INITIATION
3.9 K ohm 1/2
watt
50 ohm
strait lay - 18 ga
SIGNAL
3.9 K ohm
1/2 watt
4.8 ohm
@0.5a
strait lay - 14 ga
1.2
ohm
@2.0a
strait lay - 12 ga
Figure I-5, Wiring Guidelines
Signaling Circuit Wire Sizes
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Summary of Contents for FLEXALARM 620
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