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3
Wiring
continued
Example of system wiring with network devices:
Figure 4. Sample Network Wiring
Power
AirAlert 96d
Supply
V+ V- V+ V-
A1 B1
A2 B2
SHLD
SHLD A3
B3 A4
Power cable (V+)
Power cable (V-)
Power
Supply
RS-485 comm cable; Twisted pair, 24 AWG, shielded (Belden 9841)
Power cable; Two conductor, 14 AWG (Belden 5100UE)
4/20 mA comm cable; Three conductor, 18 AWG, shielded, stranded (Belden 8770)
VL sensor cable; Four conductor, 16 AWG, non-shielded
Manning AirAlert-96d Gas Monitor
IM
IR
IM
B4
Channel 1 (A1 and B1 twisted pair)
EC
19073 AIRALERT96D 05/2006 Prelim REVC Copyright © 2006 Honeywell Analytics. All Rights Reserved.
VL
EC
EC
VL
EC
EC
EC
EC
EC
EC
EC
EC
EC
EC
EC
EC
Relay
Module
EC
6
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