Johnson Controls S300 Series Assembly instructions

April, 2010
24-10239-413 Revision A
S300
Series
S300-DIN-RDR2S
Hardware Installation Manual

Copyright 2010
Johnson Controls, Inc.
All Rights Reserved
No part of this document may be reproduced without the prior permission of
Johnson Controls, Inc.
These instructions are supplemental. Some times they are supplemental to other manufacturer’s
documentation. Never discard other manufacturer’s documentation. Publications from Johnson
Controls, Inc. are not intended to duplicate nor replace other manufacturer’s documentation.
If this document is translated from the original English version by Johnson Controls, Inc., all
reasonable endeavors will be used to ensure the accuracy of translation. Johnson Controls, Inc.
shall not be liable for any translation errors contained herein or for incidental or consequential
damages in connection with the furnishing or use of this translated material.

Due to continuous development of our products, the information in this document is subject to change without notice.
Johnson Controls, Inc. shall not be liable for errors contained herein or for incidental or consequential damages in
connection with furnishing or use of this material. Contents of this publication may be preliminary and/or may be
changed at any time without any obligation to notify anyone of such revision or change, and shall not be regarded as a
warranty.
Acknowledgment
Company and product names published in this manual are trademarks or registered trademarks of their respective owners.
Federal Communications Commissions Notice
This equipment, S300-DIN-RDR2S, has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help.
The user is cautioned that changes and modifications made to the equipment without approval of the manufacturer could
void the user's authority to operate this equipment.
Canadian Notice
This Class B digital apparatus, S300-DIN-RDR2S, complies with Canadian ICES-003.
Cet appareil numerique de la classe B, S300-DIN-RDR2S, est conforme à la norme NMB-003 du Canada.
Declaration of Conformity
This product complies with the requirements of the European Council Electromagnetic Compatibility Directive 2004/
108/EEC and the Low Voltage Directive 2006/95/EEC.
This equipment must not be modified for any reason and it must be installed as stated in the Manufacturer’s instruction.
If this shipment (or any part thereof) is supplied as second-hand equipment, equipment for sale outside the European
Economic Area or as spare parts for either a single unit or system, it is not covered by the Directives.

UNDERWRITERS LABORATORIES COMPLIANCE VERIFICATION SHEET
The following model numbers are listed under Underwriters Laboratories UL 1076 for Proprietary Burglar
Alarm Units and Systems and UL 294 for Access Control Systems Units.
S300-DIN-RDR2S
When installed at the site the following requirements must be met to comply with these standards.
1. The S300-DIN-RDR2S shall be mounted in subassembly S300-DIN-L or S300-DIN-S.
2. The S300-DIN-RDR2S in combination with the S300-DIN-L or S300-DIN-S must be connected to a UL
Listed Uninterruptible Power Supply that provides a minimum of 24 hours of AC emergency power.
3. The tamper switch must be enabled at all times.
4. Transient protection devices that are installed must not be removed or defeated.
5. Do not connect equipment to an AC power source that is controlled by a switch.

24-10239-413 Rev. A 1
This document contains confidential and proprietary information of Johnson Controls, Inc.
© 2010 Johnson Controls, Inc.
HARDWARE INSTALLATION
INTRODUCTION
The S300-DIN-RDR2S module provides interface control for access and security devices
associated with a door.
NOTE
Throughout this manual the S300-DIN-RDR2S module is also referred to
as the RDR2S.
The key features of the RDR2S include:
Support for RS-485 bus communications at 9600 or 19200 (Auto baud rate detection
9600/19200 baud)
Improved RS-485 bus polling algorithm
Two-door access control input/output interface, each consisting of:
- Supervised door monitor switch input (normally open or normally closed,
based on the external network configuration)
- Supervised auxiliary access or exit request switch input (normally open)
-Wiegand Data0 and Data1 interface
- Door strike relay (SPDT)
- Alarm shunt relay driver (open collector)
- Red lamp driver (open collector)
- Green lamp driver (open collector)

Hardware Installation S300-DIN-RDR2S Module
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This document contains confidential and proprietary information of Johnson Controls, Inc.
© 2010 Johnson Controls, Inc.
APPLICATION
The S300-DIN-RDR2S module supports up to two doors per unit. It uses standard RS-485
communications and can interface with the following controllers:
CK722
CK721-A
CK721
CK720/CK705
NOTE
Firmware update to RDR2S modules is recommended but optional if no
change to the terminal configuration take place after upgrading to CK721-A
v.3.0. Firmware update to all RDR2S modules is required if changes to the
terminal configuration take place after upgrading to CK721-A v.3.0.
The RDR2S provides the ability to configure supervised 4-state inputs and unsupervised
2-state inputs. When interfacing to a single door, the unused points can be configured as
general purpose input/output (I/O) points, possibly eliminating the need to purchase
additional I/O modules for certain installations.
The RDR2S provides power for card readers and door locking hardware.
INSTALLATION
Unpacking the Equipment
Carefully inspect the S300-DIN-RDR2S shipping containers as soon as you receive
them (with the delivery agent present). Some shipping companies want to have an
agent present when a damaged container is opened. If a container is damaged, open
it immediately, inspect the contents, and have the agent make note on the shipping
document. Check the purchase order against the packing slips to ensure the order is
complete. If the contents of a container are damaged in any way, notify the carrier
and your Johnson Controls representative immediately. Report any discrepancies to
your Johnson Controls representative. Save the packing materials for possible return
shipments.

S300-DIN-RDR2S Module Hardware Installation
24-10239-413 Rev. A 3
This document contains confidential and proprietary information of Johnson Controls, Inc.
© 2010 Johnson Controls, Inc.
Package Contents
S300-DIN-RDR2S module
Cable for use with CK720/CK705 controllers, S300-RDR2 modules, or S300
input/output modules
This manual
Tools Needed
Small, straight-blade screwdriver for securing wires in the terminal blocks.
RDR2S Module Components
The RDR2S module consists of two electrical printed circuit boards (PCBs) in a
plastic enclosure. The bottom PCB is a wiring base and the top PCB is an electronics
board.
The electrical printed circuit boards are interconnected via a 2x25 pin header. The
bottom board (wiring base) is mounted onto the bottom enclosure with four No 3
screws. The top board (electronics board) is mounted onto the top enclosure with
four No 3 screws. The separation between the two boards is approximately 1 inch.
The RDR2S module is shipped fully assembled.
!
CAUTION
If DC power has already been connected to the unit, disconnect the DC
power before separating the electronics board from the wiring base.
Guides
Guides
Electronics Board

Wiring Base
Hardware Installation S300-DIN-RDR2S Module
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This document contains confidential and proprietary information of Johnson Controls, Inc.
© 2010 Johnson Controls, Inc.
To separate the electronics board from the wiring base:
1. Unscrew the two screws holding the top and bottom parts of the enclosure.
2. Separate the components.
To mate the electronics board to the wiring base:
1. Using the guides, properly orient the electronics module.
2. Secure the top and bottom parts with the two screws.
Acceptable Switch/Relay Contacts
Important: Use only fine gold, gold flash, or reed switch/relay contacts. Do NOT
use silver, coin silver, or nickel contacts, as these may oxidize and degrade over
time, thereby causing the circuit to fail.
MOUNTING (NOENCLOSURE)
The S300-DIN-RDR2S can be mounted on a flat surface, DIN rail, or in an S300-DIN
enclosure.
For information on mounting the S300-DIN-RDR2S in an S300-DIN enclosure, including
power information associated with the S300-DIN-L-PS and S300-DIN-S-PS model power
supplies, refer to the S300-DIN-L Hardware Installation Manual and the S300-DIN-S
Hardware Installation Manual.

S300-DIN-RDR2S Module Hardware Installation
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This document contains confidential and proprietary information of Johnson Controls, Inc.
© 2010 Johnson Controls, Inc.
DIN Rail Mounting
To mount an RDR2S module on a DIN rail, align it with the rail and snap on. To
remove a module, pull down the white clip located on the bottom of the module,
then pull the bottom of the module out and lift it up.
Flat Surface Mounting
For flat surface mounting, the RDR2S needs to be disassembled. The base part of
the plastic enclosure has four mounting holes that are used for securing the
enclosure to the wall.
Top part
Base part
Mounting Holes

RDR2S Mounted on a Wall
Hardware Installation S300-DIN-RDR2S Module
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This document contains confidential and proprietary information of Johnson Controls, Inc.
© 2010 Johnson Controls, Inc.
DC Power Source
Parameter Value
Power 36 W
Nominal Voltage 24 VDC
Amperage 1.5 A
Chassis Grounding
Chassis ground connects to the earth of the S300-DIN-RDR2S (middle connection
of the 3-position terminal block).
!
CAUTION
Chassis ground and logic ground must be connected together at the
RDR2S power connector.
WIRING
All field wiring connects to the bottom PCB connectors and terminal blocks. This board does
not contain electronic components beside protection devices. The connections are centered at
0.2 in. (5 mm) intervals and may accommodate up to two 18 gauge wires.
Description of Signals
All interface signals are connected via plug-in connectors and terminal blocks. For a
description of the RDR2S I/O interface signals, see “Legacy Operation” on page 28.