RDR2S-A and I8O4 Hardware Installation Cable Requirements
24-10239-596 Rev. D
17
Relay Output Points
Description of Signals – NC, NO, and COM are the three connections to a
single pole, double throw relay.
The following are the relay outputs:
• Terminal 1: OUT5, OUT3
• Terminal 2: OUT5, OUT3
Reference – The relay is a dry contact relay rated at 1A at 24VDC, 25VA
maximum.
C
ABLE REQUIREMENTS
Table 2: Cable Requirements
Description Recommended Cable Type Maximum Segment Length
RDR2S-A or I8O4
to Power Supply
1
Listed, 18 AWG, hook-up wire Wire should fit within the
enclosure.
RDR2S-A or I8O4
to Controller
Listed, 22 AWG, Stranded,
Hook-up wire.
Limited to within cabinet.
Listed, 18 AWG, 3-cond,
stranded, shielded.
4000 feet (1219 m)
maximum. All RDR2S-A
modules connected to a
single controller must be
within 4000 feet of the
controller.
RDR2S-A or I8O4
to RDR2S
Listed, 22 AWG, Stranded,
Hook-up wire.
Limited to within cabinet.
Listed, 18 AWG, 3-cond,
stranded, shielded.
4000 feet (1219 m)
maximum.
Door Contact Belden 8442, 1 twisted,
unshielded pair, 22 AWG
500 ft. (152 m).
Door Strike and
Shunt
Belden 9740, 1 twisted,
unshielded pair, 18 AWG
Depends on power
requirements of the door
strike. Voltage to the strike
must not be reduced more
than 10% over the 18 AWG
wire, measured when
energized.
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