Johnson Controls CK721-A User Manual

S300 Expansion Enclosures CK721-A Installation and Operation
3-12 24-10349-8 Rev. B
This document contains confidential and proprietary information of Johnson Controls, Inc.
© 2012 Johnson Controls, Inc.
Cabling
This table describes the recommended cable to use when wiring the system.
Table 3-1: Cable Types
Description
Recommended Cable
Ty
pe
Maximum Segment Length
CK721-A Panel to Expansion Enclosure
Cardkey RS-485
Stand
ard 
(included with
mo
dules)
Johnson Controls
Su
pplied
Approximately 30 inches (18.5
cm). Note the cable shipped
from Johnson Controls is 30
inches, but the length extending
outside of the panel will vary
depending on your wiring
scheme and size of panel.
Cardkey RS-485
Extended
(if additional
length required)
Listed, 18 AWG,
3-conductor, Shielded
4000 feet (1219 m) maximum. All
expansion enclosures connected
to a single RS485 BUS must be
within 4000 feet of the panel.
Door Controls
Door Strike Belden 8760, 1 twisted,
shielded pair
, 18 AWG
Length depends on power
requirements of the door strike.
Voltage to the strike cannot be
reduced more than 10% over the
18 AWG wire.
Door Open Belden 8761, 1 twisted,
shielded pair, 22 AWG
500 ft. (152 m)
Auxiliary Access Belden 8761, 1 twisted,
shielded pair
, 22 AWG
500 ft. (152 m)
Reader to S300-RDR2
Keypad Refer to individual
re
ader specifications.
250 ft. (76 m)
Non-keypad Refer to individual
reader specifications.
500 ft. (152 m)
All low-level input cables, such as system data and reader cables, must be shielded
types. The cables should run in grounded conduit or at least two feet from AC
power, fluorescent lights, or other high energy sources.

Johnson Controls CK721-A Specifications

General

Brand	Johnson Controls
Model	CK721-A
Category	Controller
Language	English