3 Wiring continued

Example of system wiring with network devices:

Figure 4. Sample Network Wiring

 

 

 

 

VL

 

 

 

 

 

 

Power

AirAlert 96d

IM

IR

IM

 

 

 

 

 

 

Supply

 

 

 

 

 

 

 

 

 

 

V+ V- V+ V-

A1 B1 A2 B2 SHLDSHLD A3

B3 A4 B4

 

EC

EC

EC

EC

EC

EC

Relay

 

 

 

 

Module

 

 

 

 

VL

 

 

 

 

 

Power cable (V+)

Power cable (V-)

Channel 1 (A1 and B1 twisted pair)

Power

Supply

EC

EC

EC

EC

EC

EC

EC

EC

EC

EC

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 19073 AIRALERT96D 05/2006 Prelim REVC Copyright © 2006 Honeywell Analytics. All Rights Reserved.

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