caenrfid Hadron R4320C Technical document

TECHNICAL INFORMATION MANUAL
Revision 3 –06 October 2022
R4320C –R4320CB
Hadron
High Performance 4-port Embedded RAIN RFID
Reader

Visit the Hadron R4320C/R4320CB web page, you will find the latest revision
of data sheets, manuals, certifications, technical drawings, software and firmware.
All you need to start using your reader in a few clicks!
Scope of the Manual
The goal of this manual is to provide the basic information to work with Hadron R4320C/R4320CB Reader.
This manual refers to:
•R4320C Hadron Firmware ≥ 1.6.0.
•R4320CB Hadron Firmware ≥ 1.0.0.
•SDK (Software Development Kit) revision ≥ 4.7.0
Change Document Record
Date
Revision
Changes
Pages
23 Oct 2018
0
Preliminary Release
-
19 Jul 2019
1
Added download link for Hadron R4320C Technical drawing in the
External Connections paragraph
11
Added new photo in the Development Kit paragraph
8
Added FCC Compliance, Hadron R4320C FCC Grant part B and
Hadron R4320C FCC Grant part C in the Regulatory Compliance
chapter
29÷33
Added CE Compliance and Hadron R4320C CE Declaration of
Conformity in the Regulatory Compliance chapter
29÷32
21 May 2021
2
Graphic Restyling
All pages
Modified Development Kit paragraph
8
Modified Ordering Options table
9
Modified Fig. 1.3: Hadron R4320CEVB Evaluation Board
7
Modified Hadron R4320CEVB chapter
19÷28
Modified Firmware Upgrade paragraph
16
Added CE Compliance and Hadron R4320C CE Declaration of
Conformity in the Regulatory Compliance chapter
29÷32
Modified RoHS Directive paragraph
31
06 Oct 2022
3
Added model R4320CB
All pages
Modified FW Recovery/Upgrade paragraph
15
Modified Firmware Upgrade paragraph
16
Added UKCA certification
29; 33
Modified CE Compliance and CE Declaration of Conformity
29; 32
Modified RoHS Directive paragraph
31
Reference Document
[RD1] EPCglobal: EPC Radio-Frequency Identity Protocols Class-1 Generation-2 UHF RFID Protocol for
Communications at 860 MHz –960 MHz, Version 2.0.1 (April, 2015).

CAEN RFID srl
Via Vetraia, 11 55049 Viareggio (LU) - ITALY
Tel. [phone] Fax [phone]
[email protected]
www.caenrfid.com
© CAEN RFID srl –2022
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.
Federal Communications Commission (FCC) Notice
This device was tested and found to comply with the limits set forth in Part 15 of the FCC Rules. Operation is
subject to the following conditions: (1) this device may not cause harmful interference, and (2) this device must
accept any interference received including interference that may cause undesired operation. These limits are
designed to provide reasonable protection against harmful interference when the equipment is operated in a
commercial environment.
This device generates, uses, and can radiate radio frequency energy. If not installed and used in accordance
with the instruction manual, the product may cause harmful interference to radio communications. Operation
of this product in a residential area is likely to cause harmful interference, in which case, the user is required to
correct the interference at their own expense. The authority to operate this product is conditioned by the
requirements that no modifications be made to the equipment unless the changes or modifications are
expressly approved by CAEN RFID.
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 –Hadron R4320C/R4320CB - Technical Information Manual 4
Index
Scope of the Manual .................................................................................................................................................................2
Change Document Record.......................................................................................................................................................2
Reference Document................................................................................................................................................................2
1Introduction.....................................................................................................................................................................6
Description.................................................................................................................................................................................6
Development Kit .......................................................................................................................................................................8
Ordering Options ......................................................................................................................................................................9
2Hadron R4320C/R4320CB ............................................................................................................................................10
Technical Specifications Table ..............................................................................................................................................10
External Connections .............................................................................................................................................................11
Connector pinout........................................................................................................................................................11
Power supply and interface connector electrical characteristics .......................................................................12
Power supply connection ..........................................................................................................................................13
General purpose I/O connections ............................................................................................................................13
Shutdown pin ..............................................................................................................................................................14
Communication interface selection.........................................................................................................................14
UART connection ........................................................................................................................................................14
FW Recovery/Upgrade...............................................................................................................................................15
Antenna port specifications......................................................................................................................................16
Reader - Tag Link Profiles ......................................................................................................................................................16
Firmware Upgrade ..................................................................................................................................................................16
3Hadron R4320CEVB ......................................................................................................................................................19
Technical Specifications Table ..............................................................................................................................................19
Connection Diagram ...............................................................................................................................................................19
Installation Notice ......................................................................................................................................................20
Connecting to the Hadron R4320C/R4320CB reader........................................................................................................22
USB Communication Setup .......................................................................................................................................22
Easy Controller............................................................................................................................................................23
Technical Drawings .................................................................................................................................................................25
Electrical Schematic................................................................................................................................................................26
External Connections .............................................................................................................................................................27
Jumpers and Switches............................................................................................................................................................27
LEDs...........................................................................................................................................................................................28
Firmware Upgrade ..................................................................................................................................................................28
4Regulatory Compliance................................................................................................................................................29
CE Compliance .........................................................................................................................................................................29
UKCA Compliance....................................................................................................................................................................29
FCC Compliance.......................................................................................................................................................................30
RoHS Directive.........................................................................................................................................................................31
Hadron R4320C/R4320CB CE Declaration of Conformity ................................................................................................32
Hadron R4320C/R4320CB UKCA Declaration of Conformity...........................................................................................33
Hadron R4320C FCC Grant part B.........................................................................................................................................34
Hadron R4320C FCC Grant part C.........................................................................................................................................35

INDEX –Hadron R4320C/R4320CB - Technical Information Manual 5
List of Figures
Fig. 1.1: Hadron reader (Model R4320C): top view .........................................................................................................................6
Fig. 1.2: Hadron reader (Model R4320C): bottom view..................................................................................................................6
Fig. 1.3: Hadron R4320CEVB Evaluation Board ...............................................................................................................................7
Fig. 1.4: R4320CXDK: Accessories kit with adapter, antennas, cable and demo tags ...............................................................8
Fig. 2.1: Hadron R4320C/R4320CB Technical Drawings...............................................................................................................11
Fig. 2.2: Hadron R4320C/R4320CB Power Supply Connection ...................................................................................................13
Fig. 2.3: Hadron R4320C/R4320CB GPIO Connection Example ..................................................................................................13
Fig. 2.4: Hadron R4320C/R4320CB SHUTDOWN pin connection................................................................................................14
Fig. 2.5: Hadron R4320C/R4320CB RS232 Connection.................................................................................................................15
Fig. 2.6: Hadron R4320C/R4320CB ERASE Pin Connection..........................................................................................................15
Fig. 3.1: Hadron R4320CEVB Evaluation Board Connection Diagram........................................................................................20
Fig. 3.2: Hadron R4320CEVB Evaluation Board Interface Connectors.......................................................................................20
Fig. 3.3: Connection of the R4320C/R4320CB module to the R4320CEVB evaluation board................................................21
Fig. 3.4: Hadron R4320CEVB Technical Drawing ...........................................................................................................................25
Fig. 3.5: Hadron R4320CEVB Electrical Schematic ........................................................................................................................26
Fig. 3.6: SW2 configuration...............................................................................................................................................................27
Fig. 3.7: SW3 configuration...............................................................................................................................................................28
List of Tables
Tab. 2.1: Hadron R4320C/R4320CB Technical Specifications......................................................................................................10
Tab. 2.2: Hadron R4320C/R4320CB Supply and Interface Connector Pinout...........................................................................11
Tab. 2.3: Hadron R4320C/R4320CB Supply and Interface Connector Electrical Characteristics...........................................12
Tab. 2.4: RF Port Pinout.....................................................................................................................................................................16
Tab. 2.5: RF Port Electrical Characteristics.....................................................................................................................................16
Tab. 2.6: Hadron R4320C/R4320CB Reader to Tag Link Profiles................................................................................................16
Tab. 3.1: Hadron R4320CEVB Technical Specifications ................................................................................................................19

INTRODUCTION - Hadron R4320C/R4320CB - Technical Information Manual 6
1INTRODUCTION
Description
The Hadron (Model R4320C and Mod.R4320CB), embedded module of the easy2read©product line, is a
RAIN RFID multiregional compact reader for high performances applications. With programmable output
power from 10dBm to 31.5dBm, the reader reaches top reading performances being able to detect RAIN
tags from a distance of 9 m (30 feet) depending on the antenna and the tag used.
The radio frequency core of the module allows to achieve fast reading/writing operations and to work in
dense reader and dense tag environments for top-class rated performances.
Due to its compact form factor, the module is specifically designed to be easily embedded in battery
powered devices such as high performances handhelds and sleds. Thanks to the 4-antenna ports and the
high power capability, the Hadron module is the perfect RAIN RFID core component to design full size
readers for portals, industrial automation readers or any RFID device requiring long reading distances.
Fig. 1.1: Hadron reader (Model R4320C): top view
Fig. 1.2: Hadron reader (Model R4320C): bottom view

INTRODUCTION - Hadron R4320C/R4320CB - Technical Information Manual 7
The Mod. R4320CEVB - R4320C Hadron Evaluation Board allows managing the Hadron R4320C/R4320CB
reader directly via USB and UART (via USB converter) interfaces. This board is particularly suited for Hadron
R4320C/R4320CB reader evaluation and SW development purpose.
For more information, please refer to § Hadron R4320CEVB chapter page 19
Fig. 1.3: Hadron R4320CEVB Evaluation Board

INTRODUCTION - Hadron R4320C/R4320CB - Technical Information Manual 8
Development Kit
A development kit with adapter, antennas, cable and demo tags is available:
Fig. 1.4: R4320CXDK: Accessories kit with adapter, antennas, cable and demo tags
The kit includes:
•n. 1 WR4320CXEVBX R4320C - Hadron - Evaluation Board
•n.1 Circular Polarized Quadrifilar Antenna MMCX (ETSI or FCC)
•n. 1 Set of Labels
•n. 1 A927Z Temperature Logger Tag
•n. 1 RT0005 Temperature Logger Tag
•n. 1 WALIM0000005 Power Supply for Hadron R4320C Adapter Board
•n. 1 USB cable
The R4320C/R4320CB Hadron reader and its development kit are a complete set up for a quick
implementation of RFID solutions.

INTRODUCTION - Hadron R4320C/R4320CB - Technical Information Manual 9
Ordering Options
Code
Description
Reader
WR4320CXAAAA
R4320C - Hadron - High Performance 4-port Embedded UHF
RFID Reader
WR4320CXBAAA
R4320CB - Hadron - High Performance 4-port Embedded UHF
RFID Reader
Development
kit
WR4320CXDKEU
Hadron - ETSI Dev Kit with antenna, interface, power supply
and tags (reader not included)
WR4320CXDKUS
Hadron - FCC Dev Kit with antenna, interface, power supply
and tags (reader not included)
Accessories
WR4320CXEVBX
R4320C/ R4320CB - Hadron - Evaluation Board
WANT020XMMCX
ANT020/MMCX - Quad - Circular polarized quadrifilar antenna
(ETSI) - MMCX
WANT021XMMCX
ANT021/MMCX - Quad - Circular polarized quadrifilar antenna
(FCC) - MMCX
WALIM0000005
Power Supply for Hadron R4320C/R4320CB Adapter Board

HADRON R4320C/R4320CB - Technical Information Manual 10
2HADRON R4320C/R4320CB
Technical Specifications Table
Frequency Range
−865.600÷867.600 MHz (ETSI EN 302 208 v3.1.1)
−902÷928 MHz (FCC part 15.247)
RF Power
Programmable from 10dBm to 31.5dBm (30dBm for FCC)
Output Power Accuracy
+/- 1dB1
Antenna VSWR
Requirement
< 2:1 for optimum performances
Antenna Connectors
Nr. 4 MMCX jacks
Frequency Tolerance
±10ppm over the entire temperature range
Number of Channels
−4 channels (compliant to ETSI EN 302 208 v3.1.1)
−50 hopping channels (compliant to FCC part 15.247)
Standard Compliance
EPC C1G2 / ISO18000-63
Digital I/O
4 I/O lines 3.3V out @ 3mA; 5V tolerant
Forward Link
Characteristics
PR-ASK 40kBit/s; DSB-ASK 160kBit/s (FCC only)
Return Link Characteristics
−Miller encoding (M=4; LF=250kHz)
−Miller encoding (M=4; LF=300kHz)
−FM0 400kbit/s (FCC only)
Connectivity
USB interface
One USB 2.0 Full Speed (12 Mbit/s) device port
UART Serial Port
−Baudrate: up to 115200
−Databits: 8
−Stopbits:1
−Parity: none
−Flow control: none
−3.3 V I/O voltage level
Dimensions
(L) 60 x (W) 42 x (H) 7,5 mm3
Power Consumption
(max)
8.5W peak (TX/RX mode)
DC Power
3,5 VDC ÷ 5.5 VDC
Operating Temperature
-20°C to +60°C
Weight
35 g
Tab. 2.1: Hadron R4320C/R4320CB Technical Specifications
Warning: The RF settings must match the country/region of operating to comply with local laws
and regulations.
The usage of the reader in different countries/regions from the one in which the device has
been sold is not allowed.
1
For output power less than 14dBm the accuracy may exceed the specification

HADRON R4320C/R4320CB - Technical Information Manual 11
External Connections
The location of the connectors is shown in Fig. 2.1: Hadron R4320C/R4320CB Technical Drawings page 11.
Their part numbers are listed here below:
Antenna Ports: RF Coax Connector Huber+Suhner type 82_MMCX-S50-0-2/111_K (to be used with
Huber+Suhner type 11_MMCX-50-1-1/111_O)
MOLEX Connector: PCB Header Molex type 53261-1571
(to be used with Molex Type 51021-1500 + 15pcs crimp terminal type 50058-8100)
Download the Hadron R4320C/R4320CB Technical drawing at Hadron R4320C/R4320CB web page.
Fig. 2.1: Hadron R4320C/R4320CB Technical Drawings
Connector pinout
In the following table the Hadron R4320C/R4320CB power supply and the interface connector pinout are
reported.
Pin #
Name
Direction
Function
1
GND
-
Ground
2
GND
-
Ground
3
VCC
-
Supply voltage
4
VCC
-
Supply voltage
5
GPIO0
IN/OUT
General purpose I/O #0
6
GPIO1
IN/OUT
General purpose I/O #1
7
GPIO2
IN/OUT
General purpose I/O #2
8
GPIO3
IN/OUT
General purpose I/O #3
9
RXD
IN
UART RX (input to the module)
10
TXD
OUT
UART TX (output from the
module)
11
USB DM
IN/OUT
USB DM signal
12
USB DP
IN/OUT
USB DP signal
13
5V USB
IN
USB supply voltage input
14
SHUTDOWN
IN
Shutdown of the module
15
ERASE
IN
FW recovery/upgrade enabling
Tab. 2.2: Hadron R4320C/R4320CB Supply and Interface Connector Pinout

HADRON R4320C/R4320CB - Technical Information Manual 12
The GPIO0-GPIO3 pins are 4 general purpose bidirectional pins, their default direction is IN.
The RXD/TXD pins are used to communicate with the R4320C/R4320CB board via UART port; to establish a
link with the device you must configure your COM port as follows
2
:
Baud rate: 115200
Parity: None
Data bits: 8
Stop bits: 1
Flow Control: none
5V USB signal is used to sense the presence of an USB host device connected to the module and not for
supply the device. This pin shall be left unconnected for UART operation.
Powering on the module with ERASE pin tied at high level for more than 220ms enables the internal
microcontroller FW recovery/upgrade procedure.
When SHUTDOWN pin is at high level the internal circuitry of the module is powered off and the current
consumption is reduced to less than 1mA.
Power supply and interface connector electrical characteristics
3
Pin name
Pin No.
Parameter
Min
Typ
Max
Unit
VCC
3,4
Supply DC voltage
3.5
4.25
5.5
V
Supply DC current
0.25
2.4
A
GPIO[0:3]
5, 6, 7, 8
VOL
0
0.4
V
VOH
2.0
3.3
V
Output current
3.0
mA
VIL
-0.3
0.8
V
VIH
2.0
5.5
V
Input current
1
μA
RXD
9
VIL
-0.3
0.8
V
VIH
2.0
5.5
V
Input current
1
μA
TXD
10
VOL
0
0.4
V
VOH
2.4
3.3
V
Output current
1.5
mA
USB DM
11
VIL
0.8
V
VIH
2
V
VOL
0
0.3
V
VOH
2.8
3.3
V
USB DP
12
VIL
0.8
V
VIH
2
V
VOL
0
0.3
V
VOH
2.8
3.3
V
5V USB
13
VIL
-0.3
0.8
V
VIH
2
5.5
V
Input current
1
µA
SHUTDOWN
14
VIL
0
0.8
V
VIH
2
5.5
V
Input current
40
µA
ERASE
15
VIL
0
0.8
V
VIH
2
5.5
V
Input current
6
mA
GND
1,2
Tab. 2.3: Hadron R4320C/R4320CB Supply and Interface Connector Electrical Characteristics
2
Since R4320C RX/TX are TTL level signals, to connect it with a PC, a TTL/RS232 translator shall be used.
3
Exceeding maximum values reported in the table may cause permanent damage to the model.

HADRON R4320C/R4320CB - Technical Information Manual 13
Power supply connection
In the following schematic suggested R4320C/R4320CB power supply connection is shown.
The use of a resettable fuse (F1) is recommended since R4320C/R4320CB does not provide internal current
limitation protection.
Diode D1 avoid damage to the reader in case of reverse polarity connection.
Fig. 2.2: Hadron R4320C/R4320CB Power Supply Connection
General purpose I/O connections
The GPIO0-GPIO3 pins are 4 general-purpose bidirectional pins. Their default direction after a power on
reset or a general reset is set to input.
GPIO, when configured as Outputs, can be used to drive indicators as LEDs or buzzers or to send trigger
signal to others equipment.
GPIO, when configured as Inputs, can accept control signals from other equipment or trigger signals from
sensors (i.e. photocells).
In the following schematic an example of application of GPIO is shown.
Fig. 2.3: Hadron R4320C/R4320CB GPIO Connection Example

HADRON R4320C/R4320CB - Technical Information Manual 14
Shutdown pin
R4320C/R4320CB SHUTDOWN pin allows to set the module in power off mode (current consumption less
than 1mA) and can be used also for manual reset operation.
SHUTDOWN pin is pulled-down by an internal resistor.
Fig. 2.4: Hadron R4320C/R4320CB SHUTDOWN pin connection
Communication interface selection
The communication with Hadron R4320C/R4320CB module can be performed via UART or USB interface.
If at power up an USB host is already connected to the module the USB interface is selected otherwise if
USB pins are not connected the UART interface is selected.
UART connection
The RXD/TXD pins are used to communicate with the R4320C/R4320CB module via UART port. Since
R4320C/R4320CB RX/TX are TTL level signals, to connect it with a PC, a TTL/RS232 translator shall be used
(please refer to the diagram below)
4
.
To establish a link with the device host COM port shall be configured as follows:
Baud rate: 115200
Parity: None
Data bits: 8
Stop bits: 1
Flow Control: none
4
R4320C service board (R4320CEVB) hosts both UART (via USB converter) and USB full interfaces.

HADRON R4320C/R4320CB - Technical Information Manual 15
Fig. 2.5: Hadron R4320C/R4320CB RS232 Connection
FW Recovery/Upgrade
ERASE pin is reserved and shall be used only to perform the microcontroller FW recovery/upgrade
procedure during which it must be forced at high level (3.3V or 5V).
In the following diagram a manual recovery mechanism is shown: in order to perform the R4320C/R4320CB
boot recovery the jumper JP shall be inserted between pin 1 and 2, then R4320C/R4320CB module shall be
switched on for 5s at least. After that the reader shall be switched off and the jumper removed: at the next
switch on the reader will execute the boot recovery program.
For further details please see § Firmware Upgrade page 16.
Fig. 2.6: Hadron R4320C/R4320CB ERASE Pin Connection

HADRON R4320C/R4320CB - Technical Information Manual 16
Antenna port specifications
In the following table the pinout of R4320C/R4320CB antenna ports is shown.
Pin #
Function
Direction
Description
INNER
RF OUT
OUT
RF output
OUTER
GND
-
Ground
Tab. 2.4: RF Port Pinout
Parameter
Min
Typ.
Max
Unit
RF output power (nominal)
10
1400
mW
10
31.5
dBm
Output power vs. power setting
accuracy
± 1
dB5
RF port impedance
50
Ω
Recommended antenna VSWR
2:1
-
Tab. 2.5: RF Port Electrical Characteristics
Reader - Tag Link Profiles
R4320C/R4320CB reader supports different modulation and return link profiles according to EPC Class1
Gen2 protocol [RD1].
In the following table are reported all profiles that have been tested for the compliance with ETSI and FCC
regulations.
Link profile #
Regulation
Modulation
Return Link
1
FCC
PR-ASK; f=40kHz
Miller (M=4); f = 250kHz
2
ETSI
PR-ASK; f=40kHz
Miller (M=4); f = 300kHz
3
FCC
DSB-ASK; f=160kHz
FM0; f = 400kHz
Tab. 2.6: Hadron R4320C/R4320CB Reader to Tag Link Profiles
Firmware Upgrade
The R4320C/R4320CB reader firmware upgrade can be performed via USB or UART interface.
In the following procedure it is assumed to use the R4320CEVB adapter board, a PC as host and the native
USB of the module.
1) With the board powered off insert the jumper J9 in the position shown below:
5
For output power less than 14dBm the accuracy may exceed the specification

HADRON R4320C/R4320CB - Technical Information Manual 17
2) Power on the board via power jack J1 for at least 5s.
3) Remove the power supply.
4) Place the jumper J9 in the original position.
5) Check that the SW3 switch is in the USB configuration (see Fig. 3.7: SW3 configuration page 28).
6) Connect the USB cable to the J3 connector on the board.
7) Power on the board via power jack J1.
8) Depending on your reader model, download the R4320C Hadron Upgrade Tool or R4320CB Hadron
Upgrade Tool and the R4320C Hadron Firmware or R4320CB Hadron Firmware at the Hadron
R4320C/R4320CB web page.
Warning: pay attention to the model of your reader (R4320C or R4320CB) when downloading
the upgrade tool and the firmware
9) Launch the R4320C/R4320CB Hadron Upgrade and click on Next button.
Mod. R4320C
Mod. R4320CB

HADRON R4320C/R4320CB - Technical Information Manual 18
10) Select the COM port related to the device (Bossa Program Port assigned by OS)
11) Select the R4320C/R4320CB firmware image file.
12) Click on the Upgrade Firmware button:
Mod. R4320C
Mod. R4320CB
13) Wait for the progress bar to be full:
Mod. R4320C
Mod. R4320CB
14) Switch off the module; at the next power on the device will be operating with the new FW image.

HADRON R4320CEVB - Technical Information Manual 19
3HADRON R4320CEVB
Technical Specifications Table
Digital I/O
Four I/O lines 3.3 V out @ 3mA, 5 V tolerant
Native USB Port
USB micro female connector
USB 2.0 device
It appears as R4320C/R4320CB Virtual COM Port device; drivers for all
Windows OS
UART via USB Port
USB micro female connector
Baudrate: 115200
Databits: 8
Stopbits: 1
Parity: none
Flow control: none
9.6÷115 kbit/s data rate (settable)
It appears as USB serial port; drivers for all Windows OS
LED display
GREEN: power from AC/DC adapter
GREEN: USB connection
YELLOW: UART to USB interface activity
GREEN: GPIO[0..3]
Dimensions
(W)81 x (L)76 x (H)28 mm3
(3.2 x 3.0 x 1.1 inch3)
Electrical Power
DC Voltage 5V +/-5%
Current consumption: 2A max.
Operating Temperature
-20 °C to +60 °C
Tab. 3.1: Hadron R4320CEVB Technical Specifications
Connection Diagram
The following block diagram shows how to connect the Hadron R4320C/R4320CB with the PC host via the
Hadron R4320CEVB service board.
As reported above, R4320C/R4320CB module has an USB interface and an UART interface.
In the evaluation board UART interface is accessible via an FTDI UART to USB converter.
The board equipped with R4320C/R4320CB reader shall be powered by an external 5V 2A min. DC adapter.
The use of the Power Supply for Hadron R4320CEVB (WALIM0000005) is recommended (see § Ordering
Options page 9).

HADRON R4320CEVB - Technical Information Manual 20
Fig. 3.1: Hadron R4320CEVB Evaluation Board Connection Diagram
Fig. 3.2: Hadron R4320CEVB Evaluation Board Interface Connectors
Installation Notice
Fix the Hadron R4320C/R4320CB reader to the R4320CEVB board using 3 M2x12 countersunk screws and 3
M2 screws nuts and connect the Molex connectors.
The reader case shall be kept electrically isolated via thermal sildpad from the ground plane.
The correct way to connect the R4320C/R4320CB module to the R4320CEVB evaluation board is shown in
the following picture: