caenrfid RA0002 Technical document

RA0002
Digital I/O Interface Unit
Technical Information Manual
Revision n. 01
22/10/2013
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Scope of Manual
The goal of this manual is to provide the basic information to work with the RA0002 Digital I/O Interface Unit.
Change Document Record
Date
Revision
Changes
Pages
22 Oct 2013
01
First release.
-
CAEN RFID srl
Via Vetraia, 11 55049 Viareggio (LU) - ITALY
Tel. [phone] Fax [phone]
[email protected]
www.caenrfid.com
© CAEN RFID srl –2013
Disclaimer
No part of this manual may be reproduced in any form or by any means, electronic, mechanical, recording, or
otherwise, without the prior written permission of CAEN RFID.
The information contained herein has been carefully checked and is believed to be accurate; however, no responsibility
is assumed for inaccuracies. CAEN RFID reserves the right to modify its products specifications without giving any
notice; for up to date information please visit www.caenrfid.com.
Disposal of the product
Do not dispose the product in municipal or household waste. Please check your local regulations for
disposal/recycle of electronic products.

Index…
Scope of Manual ....................................................................................................................................................... 2
Change Document Record ........................................................................................................................................ 2
Index…........................................................................................................................................................................ 3
List of Figures.............................................................................................................................................................. 3
List of Tables............................................................................................................................................................... 4
1Introduction...................................................................................................................................................... 5
General Information ................................................................................................................................................. 6
Ordering Options ...................................................................................................................................................... 6
Accessories ............................................................................................................................................................... 6
Installation Notice..................................................................................................................................................... 7
2RA0002 Functional Description ......................................................................................................................... 8
General Description .................................................................................................................................................. 9
Power Supply .......................................................................................................................................................... 10
Power Supply with Ion R4300P reader........................................................................................................ 10
Startup .................................................................................................................................................................... 11
Input Electrical Description..................................................................................................................................... 12
Reader input interface ................................................................................................................................ 12
Isolated input interface ............................................................................................................................... 13
Output Electrical Description.................................................................................................................................. 14
Switching P mos using reader power .......................................................................................................... 14
Switching N mos using reader power.......................................................................................................... 15
Switching P mos using external power........................................................................................................ 15
Safety Output System ............................................................................................................................................. 16
Using Ion R4300P GPIO Interface ........................................................................................................................... 17
3Connecting the RA0002....................................................................................................................................18
Connect a Photo-Electric Sensor to RA0002 ........................................................................................................... 19
Example n.1 ................................................................................................................................................. 19
Example n.2 ................................................................................................................................................. 21
Connect an Alarm Sounder to RA0002 ................................................................................................................... 22
Connect a Led Signal Tower to RA0002 .................................................................................................................. 24
How to Use Relay Output ....................................................................................................................................... 26
4RA0002 Technical Specifications ......................................................................................................................27
Technical Specifications Table ................................................................................................................................ 28
External Connections .............................................................................................................................................. 29
DB15 female connector............................................................................................................................... 29
RA0002 power connector............................................................................................................................ 30
10-pin terminal block with quick coupling for power and address signals ................................................. 30
24-pin terminal block with quick coupling for power and address signals ................................................. 31
Front Panel LEDs ..................................................................................................................................................... 32
Mechanical Drawings.............................................................................................................................................. 33
List of Figures
Fig. 1.1: RA0002 Digital I/O Interface Unit...............................................................................................................................................6
Fig. 1.2: RA0002 Wall Mounting ..............................................................................................................................................................7
Fig. 2.1: RA0002: power supply through DB15 connector.....................................................................................................................10
Fig. 2.2: RA0002: dedicated power supply ............................................................................................................................................10
Fig. 2.3: Input electrical diagram ...........................................................................................................................................................12
Fig. 2.4: Reader input interface .............................................................................................................................................................12
Fig. 2.5: Isolated input interface............................................................................................................................................................13
Fig. 2.6: Output electrical diagram ........................................................................................................................................................14
Fig. 2.7: Switching P mos using reader power .......................................................................................................................................14
Fig. 2.8: Switching N mos using reader power.......................................................................................................................................15
Fig. 2.9: Switching P mos using external power.....................................................................................................................................15
Fig. 2.10: Response time of resettable fuse...........................................................................................................................................16
Fig. 4.1: GPIO DB15 socket connector pinout........................................................................................................................................29

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4
Fig. 4.2: R0002 Front Panel LEDs ...........................................................................................................................................................32
Fig. 4.3: RA0002 Mechanical Drawings..................................................................................................................................................33
List of Tables
Tab. 2.1: Correspondence between the DB15 GPI/O and RA0002 GPI/O ...............................................................................................9
Tab. 2.2: Startup GPI/O configuration ...................................................................................................................................................11
Tab. 4.1: RA0002 Technical Specifications.............................................................................................................................................28
Tab. 4.2: GPIO DB15 socket connector pinout ......................................................................................................................................29
Tab. 4.3: 10-pin terminal block table.....................................................................................................................................................30
Tab. 4.4: 24-pin terminal block table.....................................................................................................................................................31
Tab. 4.5: R0002 Front Panel LEDs ..........................................................................................................................................................32

RA0002 - Technical Information Manual
5
1Introduction
This Chapter gives general information about the RA0002 Digital I/O Interface Unit.
It contains these topics:
General Information
Ordering Options
Accessories
Installation Notice

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6
General Information
The CAEN RFID RA0002 Digital I/O Interface Unit provides an easily accessible interface to the CAEN RFID readers’
digital inputs and outputs, in order to connect external devices such as motion sensors, lightstacks and audible alarms.
The RA0002 GPIO connector is dedicated for the R4300P ION reader, while for the others CAEN RFID readers it is
necessary to wire the connector.
Fig. 1.1: RA0002 Digital I/O Interface Unit
Ordering Options
Code
Description
Module
WRA0002XAAAA
RA0002 - Digital I/O Interface Unit
WRA0002XKITA
RA0002 - Digital I/O Interface Unit (RA0002 module + DB15 cable)
Accessories
WALIM0000003
ION Power Supply
Accessories
Check for the supplied accessories below:
No.4 wall hooks
No.4 small screws (ø 3 mm)

RA0002 - Technical Information Manual
7
Installation Notice
The RA0002 can be easily hanged on the wall.
First of all, press the 4 hooks on the RA0002 (vertically or horizontally, see § Fig. 1.2: RA0002 Wall Mounting pag.7).
Fig. 1.2: RA0002 Wall Mounting
To hang the RA0002 on the wall, fix the hooks to the wall using 4 rawlplugs (ø 3 mm) (not included) + screws or, if you
want to hang the RA0002 on a wood panelling, fix the hooks to the wall just using 4 screws.

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2RA0002 Functional Description
This Chapter gives information about the RA0002 Digital I/O Interface Unit functional
aspects. It contains these topics:
General Description
Power Supply
Startup
Input Electrical Description
Output Electrical Description
Safety Output System
Using Ion R4300P GPIO Interface

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9
General Description
The RA0002 module is an I/O interface between the CAEN RFID readers and any external devices controllable by the
readers.
The supply voltage of the interface is in the range 9Vdc ÷ 36Vdc (24Vdc nominal).
The device is equipped with 4 lines of INPUT, 4 lines of OUTPUT and 1 line connected to a SPDT relay.
The lines of INPUT/OUPUT are opto-isolated, so the reader is electrically separated from the digital interface.
In INPUT, valid signals are considered from 5 to 36 V, while the OUPUT can deliver a maximum current of 500mA in
push-pull configuration.
The INPUT/OUTPUT lines are accessible via PUSH IN spring connection that facilitates the connections with the user's
devices and the I/O selected by the reader are visible through the LEDs on the front of the box.
The following table shows the correspondence between the DB15 female connector GPI/O and the RA0002 GPI/O:
DB15 GPI/O
RA0002 GPI/O
IN / OUT
GPIO0
GPI0
IN
GPIO1
GPI1
IN
GPIO2
GPI2
IN
GPIO3
GPI3
IN
GPIO4
GPO0
OUT
GPIO5
GPO1
OUT
GPIO6
GPO2
OUT
GPIO7
GPO3
OUT
GPIO8
RELAY OUT
OUT
Tab. 2.1: Correspondence between the DB15 GPI/O and RA0002 GPI/O
In CAEN RFID readers each GPI/O channel can work both as an input and as an output, while in the RA0002 there are 4
input dedicated channels, 4 output dedicated channels and an output channel that drives a SPDT relay.
By default the inputs and the outputs of CAEN RFID readers are HIGH and for this reason the RA0002 module is
designed to work according a negative logic.
The DB15 female connector is dedicated for Ion R4300P reader, while for the others CAEN RFID readers it is necessary
to wire the connector (for more info see § DB15 female connector pag. 29).

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Power Supply
The device can be powered directly from the RA0002 power connector by its dedicated power supply
(WALIM0000003).
The input power and ground are also available on the RA0002 device on terminals VDC and GND.
Power Supply with Ion R4300P reader
The connection interface/reader is made via a connecting cable with DB15 connectors.
RA0002 can be powered through the DB15 connector or with its own dedicated power supply when is required more
than 500mA total output current.
The input power and ground are also shown on the RA0002 device on terminals VDC and GND.
Fig. 2.1: RA0002: power supply through DB15 connector
When the RA0002 module is attached both to the Ion reader and to an external power supply, the following condition
must be fulfilled:
RA0002 Power Supply ≥R4300P Power Supply
Warnings: The condition must be respected in order to avoid the damage of the module.
Fig. 2.2: RA0002: dedicated power supply