Wiring and Connections

3.0WIRING AND CONNECTIONS

! CAUTION

Switch OFF electric power to the AC4 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.

3.1Wiring Specifications

Input and output connections to the AC4 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

 

 

 

 

 

18 AWG* (recommended)

 

750 ft. (225m)

 

Dry Contact

Input

 

Non Plenum - Belden 9740

 

 

(24VDC, 10 mA)

 

 

 

 

 

 

Plenum - Belden 89740

 

 

 

 

 

 

 

 

 

 

 

 

 

18-22 AWG Stranded & Unshielded

18 AWG*

20 AWG

22 AWG

 

Digital

 

(recommended)

 

 

18 AWG* (recommended)

 

 

 

24VAC @3A

 

@3A 50 ft. (15m)

@3A 40 ft. (12m)

@3A 25 ft. (7m)

Output

 

Non Plenum - Belden 9740

 

 

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)

 

 

 

18-22 AWG Stranded & Unshielded

18 AWG*

20 AWG

22 AWG

 

Common

(recommended)

 

 

 

 

Alarm

 

18 AWG* (recommended)

 

 

 

24VAC @3A

 

@3A 50 ft. (15m)

@3A 40 ft. (12m)

@3A 25 ft. (7m)

 

Non Plenum - Belden 9740

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

 

 

 

 

 

 

24VAC Power

18-22 AWG Stranded & Shielded

 

 

 

 

18 AWG* (recommended)

 

 

 

 

Connection

 

150 ft. (45m)

 

24VAC @1.3A

Non Plenum - Belden 8770

 

 

(TB7)

 

 

 

 

 

 

Plenum - Belden 88770

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

* Recommended

 

 

 

 

 

12

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Liebert AC4 user manual Wiring Specifications, Wiring and Connections, Wiring specifications

AC4 specifications

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