Cable Routing - Johnson Controls S300 Series Hardware Installation

RDR2S-A and I8O4 Hardware Installation
24-10239-596 Rev. D
Description
Request to Exit
2
Reader Power
Reader
2
Data0/Data1
2
RS485-/RS485+
General Purpose
Input
General Purpose
Output
1. When wiring more than one RDR2S-A or I8O4, use the same type of hook-up wire and communications
wire to connect subsequent modules.
2. Refer to reader manufacturer's recommendations when using UL-listed readers. In the absence of other
recommendations, consider these cable specifications taking into account the number of conductors that
will actually be needed for installation.

Cable Routing

The cables should run in grounded conduit or at least two feet from AC
power, fluorescent lights, or other high energy sources.
I : All data cables should be physically separated from power lines. If
MPORTANT
conduit is used, do not run data cables in the same conduit as power cables or
certain door strike cables, e.g. strike voltage greater that 42V or Magnetic door
locks without EMI suppression.
Table 2: Cable Requirements
Recommended Cable Type
Belden 8442, 1 twisted,
unshielded pair, 22 AWG
Belden 9740, 1 twisted,
unshielded pair, 18 AWG
Belden 9744, 2 twisted,
unshielded pair, 22 AWG
Listed, 18 AWG, 1 twisted pair
Belden 8442, 1 twisted,
unshielded pair, 22 AWG to
each detector
Belden 9740, 1 twisted,
unshielded pair, 18 AWG to
each relay
18
Cable Requirements
Maximum Segment Length
500 feet (152 m).
Refer to reader
manufacturer's specification
for power requirements.
500 feet (152 m). Refer to
reader manufacturer's
specification for Wiegand
data requirements.
4000 feet (1219 m)
maximum. Refer to reader
manufacturer's specification
for RS485 data
requirements.
500 feet (152 m)
Depends on load.