Johnson Controls CK721-A User Manual

CK721-A Installation and Operation Introduction
24-10349-8 Rev. B 1-5
This document contains confidential and proprietary information of Johnson Controls, Inc.
© 2012 Johnson Controls, Inc.
Enclosures
See Table 1-2 for a description of S300-DIN enclosures and expansion enclosures.
Table 1-2: S300 and S300-DIN Enclosures
Model Number Description
S300-DIN-S A small enclosure containing a DIN rail, a tamper switch and a
power supply
. It has room for one controller (CK721-A,
S300-DIN-RDR2S, or S300-DIN-RDR2SA) and for a battery
back-up unit.
S300-DIN-L A large enclosure containing DIN rails, a tamper switch and a
power supply
. It has room for up to three modules (CK721-A,
RDR2S, RDR2S-A, or a combination thereof), and for a bat-
tery back-up unit.
S300-XL A large expansion enclosure co
ntaining a tamper switch, a
power indicator light, and a power supply. It has room for nine
additional terminals and for a battery back-up unit.
S300-XS A small expansion enclosure contain
ing a tamper switch, a
power indicator light, and a power supply. It has room for five
additional terminals and for a battery back-up unit.
S300-XXS An extra small enclosure containing a tamper switch, a power
ind
icator light, and a power supply. It has room for two addi-
tional terminals and for a battery backup unit.

Johnson Controls CK721-A Specifications

General

Brand	Johnson Controls
Model	CK721-A
Category	Controller
Language	English