Johnson Controls CK721-A User Manual

Figure 3-25: Example of a Typical CK721-A System
CK721-A Installation and Operation S300 Expansion Enclosures
24-10349-8 Rev. B 3-35
This document contains confidential and proprietary information of Johnson Controls, Inc.
© 2012 Johnson Controls, Inc.
Wiring for Door Controls
Doors unlock due to signals sent by the S300-RDR2 module when a card or PIN
access request has been approved (or an open door command has been issued
manually). The access granted signal unlocks the door strike. The strike is locked
after the programmed unlock time has elapsed. The S300-RDR2 module has the
following options available (note that use of these options requires additional wiring
and equipment):
 Door Strike Relay Closure
 Door Open Alarm Input
 Auxiliary Access Input
 Shunt Relay Driver
reader
Door Strike
Alarm
Shunt
Relay
Door Open
Detector
To External
Alarm System
Door Strike
Power Supply
reader Connections
are Lamp, Data,
and Keypad
To S300-RDR2 module

Johnson Controls CK721-A Specifications

General

Brand	Johnson Controls
Model	CK721-A
Category	Controller
Language	English