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.

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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)

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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.

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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
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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.

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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
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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.

RI DTR CTS TXD RTS RXD DSR DCD REF IN22 REF IN21 PWR (300 mA) GND NC C NO SHLD OUT23 OUT22 OUT21 PWR (300 mA) DATA0 DATA1 REF
RXD
TXD
OUT02 OUT01
REF
IN02
REF
IN01
REF
IN12
REF
IN11
PWR (300 mA)
GND
NC
C
NO
SHLD
OUT13 OUT12 OUT11
PWR (300 mA)
DATA0 DATA1
GND
REF
+RS485 -RS485 REF SHLD
COM
EARTH
+24VDC
GND
Reserved for Future Use
Reader 1
Signal Descriptions
Reader 2/General Purpose Output 4
Reader 1/General Purpose Output 4
Reader 2/General Purpose Input 3
Reader 1/General Purpose Input 3
Reader 1 – Auxiliary Access/General Purpose Input 2
Reader 1 – Door Input/General Purpose Input 1
Reader 1 – Device Ground
Reader 1 – Door Strike/General Purpose Output 5
Reader 1 – Shunt Output/General Purpose Output 3
Reader 1 – Green LED/General Purpose Output 2
Reader 1 – Red LED/General Purpose Output 1
Reader 1 – Door
To Enclosure Power Supply and/or Next RDR2S
Reader 2 – Auxiliary Access/General Purpose Input 2
Reader 2 – Door Input/General Purpose Input 1
Reserved for Future Use
Reader 2 – Door Strike/General Purpose Output 5
Reader 2 – Shunt Output/General Purpose Output 3
Reader 2 – Green LED/General Purpose Output 2
Reader 2 – Red LED/General Purpose Output 1
Reader 2 – Door
To Controller and/or Next RDR2S
Reader 2
Signal Descriptions
Reader Mode Enabled/SIO Mode Enabled
(CK721-A/CK721/CK720/CK705 Controllers)
Reader 2 – Auxiliary (Output) Power
Reader 2 – Device Ground
Reader 2 – Door Shield
Reader 1 – Device (Output) Power
Reader 1 – Door Shield
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RI DTR CTS TXD RTS RXD DSR DCD REF IN22 REF IN21
PWR (300 mA)
GND NC C NO SHLD OUT23 OUT22 OUT21
PWR (300 mA)
DATA0 DATA1 REF
RXD
TXD
OUT02 OUT01
REF
IN02
REF
IN01
REF
IN12
REF
IN11
PWR (300 mA)
GND
NC
C
NO
SHLD
OUT13 OUT12 OUT11
PWR (300 mA)
DATA0 DATA1
GND
REF
+RS485 -RS485 REF SHLD
COM
EARTH
+24VDC
GND
Reserved for Future Use
General Purpose Output OUT02
General Purpose Output OUT01
General Purpose Input IN02
General Purpose Input IN01
Reader (T) – Auxiliary Access/General Purpose Input
Reader (T) – Door Input/General Purpose Input IN11
Reader (T) – Device Ground
Reader (T) – Door Strike/General Purpose Output NO/NC (T)
Reader (T) – Shunt Output/General Purpose Output OUT13
Reader (T) – Green LED/General Purpose Output OUT12
Reader (T) – Red LED/General Purpose Output OUT11
Reader (T) – Door
To Enclosure Power Supply and/or Next RDR2S
Reader (B) – Auxiliary Access/General Purpose Input
Reader (B) – Door Input/General Purpose Input IN21
Reserved for Future Use
Reader (B) – Door Strike/General Purpose Output
NO/NC (B)
Reader (B) – Shunt Output/General Purpose Output OUT23
Reader (B) – Green LED/General Purpose Output OUT22
Reader (B) – Red LED/General Purpose Output OUT21
Reader (B) – Door
To Controller and/or Next RDR2S
Reader Terminal Object Defined/Reader Terminal Object NOT Defined
(CK722 Controllers)
(T) = Top (B) = Bottom
Reader (B) – Auxiliary (Output) Power
Reader (B) – Device Ground
Reader (B) – Door Shield
Reader (T) – Device (Output) Power
Reader (T) – Door Shield
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Wiegand Input
Description of Signals – DATA0 and DATA1, complying with the Wiegand interface
specification, from each reader. These signals are pulled up to 5 VDC by internal
3.92 K Ohm resistors.
Reference – These signals are referenced to logic ground (GND).
Protection – Each signal has a 6 volt transient voltage suppressor between it and
chassis ground.
Inputs Points
Description of Signals – IN01, IN02, IN11, IN12, IN21, and IN22 are internally pulled
up inputs. The allowable voltage range for these signals is 0-5V.
Reference – These signals are referenced to their associated REF input.
Protection – Each signal has a 6 volt transient voltage suppressor between it and
chassis ground.
External Circuits – An external resistor and switch circuit connected between INx and
REF is required for 4-state operation. An external switch connected between INx
and REF is required for 2-state operation.
Output Points
Description of Signals – OUT01, OUT02, OUT11, OUT12, OUT13, OUT21, OUT22,
and OUT23 are open collector outputs. The allowable voltage range for these signals
is 0-24V.
Reference – These signals are referenced to logic ground (GND).
Protection – Each signal has a 30 volt transient voltage suppressor between it and
chassis ground.
Relay Output Points
The S300-RDR2S module does not turn its output points off when it has not been
polled for more than 5 seconds. (The S300-RDR2S-A module in legacy address
mode, S300-IO8, S300-I16, and S300-SI8 modules turn their output points off if
they have not been polled for more than 5 seconds. The S300-RDR2S-A module in
physical address mode and S300-RDR8S turn their output points off if they have not
been polled for more than 20 seconds.)
Description of Signals – NC, NO, and C are the three connections to a single pole,
double throw relay. The allowable voltage range for these signals is 0-24V.
Reference – When 12 VDC or 24 VDC is selected, then these signals are referenced
to logic ground (GND). When DRY is selected, the relay is a dry contact relay rated
at 2 A at 12 VDC.

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Protection – 12 VDC has a 750 mA re-settable fuse. 24 VDC has a 500 mA
re-settable fuse.
Configuration Jumpers – See “Configuration Jumpers” on page 23.
External Device Power
Description of Signals – Either 12 VDC or 24 VDC may be selected. The 12 VDC is
developed internally by a switching power supply. The 24 VDC is taken from the
external power source.
Protection – Each signal has a 300 mA re-settable fuse.
Configuration Jumpers – See “Configuration Jumpers” on page 23.
Reader Power
Description of Signals – 5 VDC, 12 VDC, or 24 VDC may be selected. The 5 VDC is
developed internally by a switching power supply. The 12 VDC is developed
internally by a switching power supply. The 24 VDC is taken from the external
power source.
Protection – Each signal has a 300 mA re-settable fuse.
Configuration Jumpers – See “Configuration Jumpers” on page 23.
Cable Requirements
Description Recommended Cable Type Maximum Segment Length
RDR2S to Power Supply1Listed, 18 AWG, hook-up wire Wire should fit within the
enclosure.
RDR2S to Controller Listed, 18 AWG, 1 twisted pair 4000 feet (1219 m) maximum.
All RDR2S modules connected
to a single controller must be
within 4000 feet of the
controller.
RDR2S to RDR2S Listed, 18 AWG, 1 twisted pair 4000 feet (1219 m) maximum
Door Strike Belden 8760, 1 twisted,
shielded pair, 18 AWG
Depends on power
requirements of the door strike.
Voltage to the strike must not be
reduced more than 10% over
the 18 AWG wire.
Door Open Belden 8761, 1 twisted,
shielded pair, 22 AWG
500 feet (152 m)
Auxiliary Access Belden 8761, 1 twisted,
shielded pair, 22 AWG
500 feet (152 m)
Reader (Power) Belden 8760, 1 twisted,
shielded pair, 18 AWG
Refer to reader manufacturer’s
specification for power
requirements.

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Cable Routing
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.
!
CAUTION
All data cables should be physically separated from power lines. If
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.
All cables must conform with the following regulations:
National Electrical Code
NFPA 70
Local electrical codes
Canadian Electric Code C22.1 (installations in Canada)
BSI Standard BS7671, latest edition (installations in Great Britain)
Cabling should be made using good wiring practices and should be long enough to
allow service loops at their terminations in the enclosure.
CK720 to RDR2S Cable
A cable (part number 25-2360-8) is included with the RDR2S. Use this cable to
fabricate the cable between a CK720 and the RDR2S. Cut the cable in half and
extend the wiring from the CK720 enclosure to the RDR2S.
Reader (Data) Belden 8761, 1 twisted,
shielded pair, 22 AWG
500 feet (152 m). Refer to
reader manufacturer’s
specification for data
requirements.
Alarm Input Belden 8761, 1 twisted,
shielded pair, 22 AWG to each
detector
500 feet (152 m)
Output Point Belden 8760, 1 twisted,
shielded pair, 18 AWG to each
relay
Depends on load.
1. When wiring more than one RDR2S, use the same type of hook-up wire and communications
wire to connect subsequent modules.
Description Recommended Cable Type Maximum Segment Length

GND
DAT+
DAT-
BLACK
WHITE
GREEN
RS485+ RS485- REF SHLD
YELLOW
RED N/A
N/A
5
1
Wire nuts
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Power Supply
For power wiring with either the large or small enclosure, use the cable assembly
shown in the following figure. Refer also to the S300-DIN-L Hardware Installation
Manual and the S300-DIN-S Hardware Installation Manual.
Connects to
RDR2S module
Chassis
ground
COM
+24 VDC
connector
black
red
green
When connecting multiple RDR2S modules, wire the modules in parallel following
the “daisy chain” pattern as shown in the following figures. To construct the power
wiring, use listed 18 AWG wires.
1st RDR2S 3rd RDR2S2nd RDR2S to the next
RDR2S
DC power cable
connecting to
power supply
RS-485 cable
connecting to
controller
!
CAUTION
Make sure each wire is connected to the same corresponding connector
position in the subsequent RDR2S module. See the following figure for
details.

Connectors of
the 1st RDR2S
Connectors of
the last RDR2S
Connectors of
the 2nd RDR2S
RS485+
RS485-
REF
COM
+24 VDC
connector
!
CAUTION
Do not connect the DC power cable to the RDR2S until all wiring is
complete.
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If daisy-chain connecting an RDR2S with an S300 Series module (e.g. S300-RDR2,
S300-SI8, S300-SIO8, S300-IO8, and S300-I16), wire the devices according to the
following illustration.
RDR2S Connector
(RS-485)
S300 Series
Connector (RS-485)
12
3 45
S300 Series
Connector (RS-485)
12
3 45
RS485+
RS485-
REF
!
CAUTION
When daisy-chain connecting an RDR2S to an S300 Series module,
you must wire REF (Ground) from the controller via the RDR2S to the
next S300 Series module in the chain.

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Power Requirements
See the following table for general power requirements. For power requirements for
input and output points, see “External Device Power” on page 10 and “Reader
Power” on page 10.
Parameter Value
Input voltage 15 VDC min to 28 VDC max.
Nominal voltage 24 VDC
Maximum power needed 36 W
Output ratings (total for the RDR2S) 5 VDC at 3 W; 12 VDC at 16 W; 
24 VDC at 14.4 W
Line Voltage Information
If the facility is located in an area where power lines are subject to frequent lightning
strikes, verify with the electric company that the building transformer is equipped
with surge protectors. These, as well as a “crowbar” type of protection, can be
installed at the main service entrance if the building transformer is not equipped
with lightning protection.
While lightning is one cause of power line transients, others can be internal or
external to the building environment. The general application of transient surge
suppression is low-cost insurance to ensure long life of the equipment being
installed.
Wiring Input/Output Devices
Tamper Switch Wiring
The tamper switch connects to a general purpose input point. To be operational, the
tamper switch must be wired to one of the unused input points on any RDR2S in the
enclosure, and programmed in the controller.

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General Input Wiring
Depending on programming, there are either 2-state or 4-state inputs. You should
define the inputs depending on the needs of your site.
IN11
REF
2-State Inputs Wiring
Note: The 4-state wiring requires two
resistors of the same value. The resistors
can be 150-2000 Ohms, 5%, 1/4W. The
recommended resistor is 1200 Ohms.
IN11
REF
4-State Inputs Wiring: N/C Switch
Note: The 4-state wiring requires two
resistors of the same value. The resistors
can be 150-2000 Ohms, 5%, 1/4W. The
recommended resistor is 1200 Ohms.
IN11
REF
4-State Inputs Wiring: N/O Switch

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Sample Application Diagrams
One Door Application
This application is designed for the RDR2S with Reader 1 (Top) enabled for use
with a single, fully configured door (single strike – single reader). The remaining
input/output points are designated as general purpose I/Os, meaning you can use
these I/Os for other applications, such as a reader with a tamper switch (input) or
alarm annunciation output (siren, lights).
REX Device
(Motion Sensor)
Door
Contact
Reader DATA0 / DATA1 (top),
OUT11, OUT12, OUT13
Door Strike
NO / NC (top)
IN12
IN11
General Purpose
Inputs
General Purpose
Outputs
IN01
IN02
IN21
IN22
OUT01
OUT02
OUT21
OUT22
OUT23
RDR2S
NO / NC (bottom)