Emerson AC8 3.1Wiring Specifications, 3.0WIRING AND CONNECTIONS, Table, Wiring specifications

Wiring and Connections

3.0WIRING AND CONNECTIONS

! CAUTION

Switch OFF electric power to the AC8 before installing any wiring to the unit or changing input or output connections. The Power On/Off switch is in the top left corner of the unit, just below the battery pack.

3.1Wiring Specifications

Input and output connections to the AC8 may be made in any order—it is not necessary, for example, to make all input connections before making any output connections. Use copper conductors only for all wiring.

Table 4	Wiring specifications
Connection		Supported Wire Type	Maximum Wire Length			Rating
Digital		18-22 AWG Stranded & Unshielded				Dry Contact
		18 AWG* (recommended)
Input/				750 ft. (225m)		(24VDC,
		Non Plenum - Belden 9740
EPOP						10 mA)
		Plenum - Belden 89740
Digital		18-22 AWG Stranded & Unshielded	18 AWG*	20 AWG	22 AWG
			(recommended)
Output/		18 AWG* (recommended)				24VAC@3A
			@3A 50 ft. (15m)	@3A 40 ft. (12m)	@3A 25 ft. (7m)
Control		Non Plenum - Belden 9740
Relay		Plenum - Belden 89740	@2A 100 ft. (30m)	@2A 60 ft. (18m)	@2A 35 ft. (10m)
			@1A 200 ft. (60m)	@1A 100 ft. (30m)	@1A 75 ft. (23m)
Analog Input		18-22 AWG Stranded & Unshielded				4-20 mA Signal
		18 AWG* (recommended)				Input Selectable
2-Wire				750 ft. (225m)
		Non Plenum - Belden 9740				Power Source
Transducer
		Plenum - Belden 89740				(12/24VDC)
Analog Input		18-22 AWG Stranded & Unshielded				4-20 mA Signal
		18 AWG* (recommended)				Input Selectable
4-Wire				750 ft. (225m)
		Non Plenum - Belden 8489				Power Source
Transducer
		Plenum - Belden 88489				(12/24VDC)
		18-22 AWG Stranded & Unshielded	18 AWG*	20 AWG	22 AWG
Common			(recommended)
Alarm		18 AWG* (recommended)				24VAC
			@3A 50 ft. (15m)	@3A 40 ft. (12m)	@3A 25 ft. (7m)
		Non Plenum - Belden 9740				@3A
Output
		Plenum - Belden 89740	@2A 100 ft. (30m)	@2A 60 ft. (18m)	@2A 35 ft. (10m)
			@1A 200 ft. (60m)	@1A 100 ft. (30m)	@1A 75 ft. (23m)
Communication		Null Modem Cable		50 ft. (15m)		N/A
RS232
Communication		18-22 AWG Stranded & Shielded
EIA422		22 AWG* (recommended)		1000 ft. (300m)		N/A
		Non Plenum - Belden 9461
SiteScan
		Plenum - Belden 88761
Communication		18-22 AWG Stranded & Shielded
		22 AWG* (recommended)		3000 ft. (900m)		N/A
EIA485		Non Plenum - Belden 9461
		Plenum - Belden 88761
Phone/Modem		4 Wire (Pins 3 & 4)		N/A		N/A
Line		RJ11 Connector
24VAC Power		18-22 AWG Stranded & Shielded
		18 AWG* (recommended)				24VAC
Connection				150 ft. (45m)
		Non Plenum - Belden 8770				@1.3A
(TB7)
		Plenum - Belden 88770
Power Connections (Transformer Module)
115VAC		14 AWG Stranded & Unshielded		150 ft. (45m)		115VAC
		Non Plenum - Belden 5101UE				@4A
230VAC		14 AWG Stranded & Unshielded		150 ft. (45m)		230VAC
		Non Plenum - Belden 5101UE				@0.5A

* Recommended

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