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Wiring and Connections - Main Board
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4.0 WIRING AND CONNECTIONS - MAIN BOARD
4.1 Wiring Specifications
Input and output connections to the Universal Monitor may be made in any order—it is not neces-
sary, for example, to make all input connections before making any output connections. Use copper
conductors only for all wiring.
!
CAUTION
Switch OFF electric power to the Universal Monitor 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.
Table 7 Wiring specifications - main board
Connection Supported Wire Type Maximum Wire Length Rating
Digital
Input
18-22 AWG Stranded & Unshielded
18 AWG* (recommended)
Non Plenum - Belden 9740
Plenum - Belden 89740
750 ft. (225m)
Dry Contact
(24VDC,
10 mA)
Digital
Output
18-22 AWG Stranded & Unshielded
18 AWG* (recommended)
Non Plenum - Belden 9740
Plenum - Belden 89740
18 AWG*
(recommended)
20 AWG 22 AWG
24VAC
@3A
@3A 50 ft. (15m)
@2A 100 ft. (30m)
@1A 200 ft. (60m)
@3A 40 ft. (12m)
@2A 60 ft. (18m)
@1A 100 ft. (30m)
@3A 25 ft. (7m)
@2A 35 ft. (10m)
@1A 75 ft. (23m)
Analog Input
2-Wire
Transducer
18-22 AWG Stranded & Unshielded
18 AWG* (recommended)
Non Plenum - Belden 9740
Plenum - Belden 89740
750 ft. (225m)
4-20 mA Signal
Input Selectable
Power Source
(12/24VDC)
Analog Input
4-Wire
Transducer
18-22 AWG Stranded & Unshielded
18 AWG* (recommended)
Non Plenum - Belden 8489
Plenum - Belden 88489
750 ft. (225m)
4-20 mA Signal
Input Selectable
Power Source
(12/24VDC)
Common
Alarm
Output
18-22 AWG Stranded & Unshielded
18 AWG* (recommended)
Non Plenum - Belden 9740
Plenum - Belden 89740
18 AWG*
(recommended)
20 AWG 22 AWG
24VAC
@3A
@3A 50 ft. (15m)
@2A 100 ft. (30m)
@1A 200 ft. (60m)
@3A 40 ft. (12m)
@2A 60 ft. (18m)
@1A 100 ft. (30m)
@3A 25 ft. (7m)
@2A 35 ft. (10m)
@1A 75 ft. (23m)
Communication
RS232
Null Modem Cable 50 ft. (15m) N/A
Communication
EIA422
SiteScan
18-22 AWG Stranded & Shielded
22 AWG* (recommended)
Non Plenum - Belden 9461
Plenum - Belden 88761
1000 ft. (300m) N/A
Communication
EIA485
18-22 AWG Stranded & Shielded
22 AWG* (recommended)
Non Plenum - Belden 9461
Plenum - Belden 88761
3000 ft. (900m) N/A
Phone/Modem
Line
4 Wire (Pins 3 & 4)
RJ11 Connector
N/A N/A
24VAC Power
Connection
(TB7)
18-22 AWG Stranded & Shielded
18 AWG* (recommended)
Non Plenum - Belden 8770
Plenum - Belden 88770
150 ft. (45m)
24VAC
@1.3A
Power Connections (Transformer Module)
115VAC
14 AWG Stranded & Unshielded
Non Plenum - Belden 5101UE
150 ft. (45m)
115VAC
@4A
230VAC
14 AWG Stranded & Unshielded
Non Plenum - Belden 5101UE
150 ft. (45m)
230VAC
@0.5A
* Recommended