Application Note
Communication of Passive RFID Reader andFOX3 Series Via Serial Link

Part Number APP-0016
Revision A October 2019

Intellectual Property© 2019 Lantronix, Inc. All rights reserved. No part of the contents of this publication may
be transmitted or reproduced in any form or by any means without the written permissionof Lantronix.
Lantronix is a registered trademark of Lantronix, Inc. in the United States and othercountries.
Patented: www.lantronix.com/legal/patents/; additional patents pending.
All trademarks and trade names are the property of their respective holders.

Contacts
Lantronix, Inc.
7535 Irvine Center Drive, Suite 100
Irvine, CA 92618, USA
Toll Free: 800-526-8766
Phone:
949-453-3990
Fax:
949-453-3995
Technical Support
Online: www.lantronix.com/support
Sales Offices
For a current list of our domestic and international sales offices, go to the Lantronix website at www.lantronix.com/about/contact

Disclaimer
All information contained herein is provided “AS IS.” Lantronix undertakes no obligation to
update the information in this publication. Lantronix does not make, and specificallydisclaims, all warranties of any kind (express, implied or otherwise) regarding title, noninfringement, fitness, quality, accuracy, completeness, usefulness, suitability or
performance of the information provided herein. Lantronix shall have no liability
whatsoever to any user for any damages, losses and causes of action (whether in contract
or in tort or otherwise) in connection with the user’s access or usage of any of theinformation or content contained herein. The information and specifications contained inthis document are subject to change without notice.

Communication of Passive RFID Reader and FOX3 Series Via Serial Link

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Revision History
Date

Rev.

Comments

April 2009

1.0.0

Initial version.

April 2009

1.0.1

Replaced Figure 2 and added a note.
Changed settings for Serial0 port from$PFAL,MSG.Mode.SERIAL0=0,C to$PFAL,MSG.Mode.SERIAL0=40,C - allowing execution of PFAL
commands "$PFAL,MSG.Send.(Raw)Serial0,<protocols>,<"text">"
and a Note added as well.
Corrected dynamic entry from &(Sys.eSerialData0) to&(SerialData0).

February 2010

1.0.2

Added chapter 1.3, "RFID Reader - Technical data (Lantronix
accessory product)" - The new RFID reader supports ISO14443
type A/B.
Added chapter 1.5.1.1.5, "How to use the RFID reader with only
one Tag ID ".
Added configuration$PFAL,Cnf.Set,DEVICE.COMM.BINEVENT="0x44,0x30",0D,e[i] inchapter 1.5.1.1.6
Sets filters for incoming data on the Serial Port 0.

May 2012

1.0.3

Corrected PFAL command in AL10, page 8.

June 2012

1.0.4

Replaced Figure 2 by a new one.

February 2013

1.0.5

Added "Attention" in chapter 1.5.1.1.5 - RFID readers will be
programmed with a new firmware. With this firmware you can use
the same TAG without sending the binary code for clearing the
RFID buffer.

October 2014

1.0.6

Lantronix Offers only one RFID Reader that is compatible with all
Lantronix AVL products. The RFID Reader supply voltages ranges
from +5 to +12 VDC.
The cable designation changed from KA to CA.

June 2018

1.0.7

Added FOX3-2G/3G/4G series and BOLERO40 series
Added HEX- commands to configure the RFID reader
Removed STEPPIII, BOLERO-LT2

October 2019

A

Initial Lantronix document. Added Lantronix document partnumber, logo, contact information, and links.

For the latest revision of this product document, please check our online documentation atwww.lantronix.com/support/documentation.

Communication of Passive RFID Reader and FOX3 Series Via Serial Link

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Table of Contents

1

Introduction ........................................................................................... 5
1.1
1.2
1.3
1.4

What is a passive RFID and how does it work? ............................................................. 5
Technical data of RFID-A-B-EXT – Lantronix Passive RFID Reader ................................ 5
What is needed to get started with FOX3-2G/3G/4G series and passive RFID system?6
Hardware setup ............................................................................................................. 6
1.4.1 Connecting a FOX3-2G/3G/4G series device to your PC .......................................... 6
1.4.2 Installing the Lantronix Workbench software and loading the configuration into
the device............................................................................................................................ 7
1.4.3 Interfacing RFID reader with a device and power them up with the help of either
CA31 or CA69 ....................................................................................................................10
1.4.4 Testing the RFID reader with a FOX3-2G/3G/4G series device ..............................10
1.5 Additional Hex commands to configure the RFID Reader...........................................11

2

Documentation .................................................................................... 13
2.1

Additional documentation & software tools ..............................................................13

Communication of Passive RFID Reader and FOX3 Series Via Serial Link

4

1 INTRODUCTION
This document describes the integration of passive RFID reader and transponder (Tag) with a FOX3-2G/3G/4G or
BOLERO40 series device and, in particular how to read the passive RFID Tags and evaluate their identifiers in
an appropriate way.
Please note that, the configuration examples given in this document can be used for both the FOX32G/3G/4G and BOLERO40 series. The BOLERO40 series and FOX3-2G/3G-LITE devices support only one
serial port, which has the index “0” in the firmware. If you are going to use one of these device series with
Lantronix RFID reader, you have to modify the configuration examples below and change the index of theserial port to “0”. Additionally, the “SERIAL-PORT” is a Premium-feature for BOLERO40 series and you needto order and activate it before use.

1.1

What is a passive RFID and how does it work?

Radio frequency identification, or RFID, is a generic term for technologies that use radio waves toautomatically identify items, such as goods, package delivery, people or other objects. In principle an RFID
system consists of at least three components, two Tags and one Reader. The Tag is the backbone of the RFID systemsince it contains the data that identify the items. The reader produces a weak high frequency over an antenna
electromagnetic field. If a Tag passes within this magnetic field, the Tag gets once operating energy from the reader
and sends out contactless its identifier (in the form of a unique serial number) to identify itself. The reader
receives this identifier (from here on this identifier will be referred to "ID") and then sends it as is through its serial line
to the connected vehicle telematics device. If the Tag leaves the HF-field of reader, its chip becomes again

inactive.
Basically there are two variants of RFID Tag technology:
Passive Tags:

Such transponders do not have any internal power source and theirenergy source is radiated by the reader which powers up the transponder
within the reading zone. The maximum reading zone on such systems is
usually not to long (only some centimetres).

Active Tags:

Such transponders have their own battery and thus have a longer readingzone than passive transponders. For more details about active Tags, go to
our website https://www.lantronix.com/resources/app-notes/ anddownloadthedocument“AppNotes_FOX3_3G_with_ELA_Active_Reader.pdf”

There are systems with 125kHz, 134kHz, 13.56MHz, 433MHz, 868MHz, 915MHz, 2.45GHz which havenaturally different read characteristics and ranges.

1.2

Technical data of RFID-A-B-EXT – Lantronix Passive RFID Reader

The main features of RFID-A-B-EXT passive RFID reader:
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓

Supports ISO/IEC 14443 A / MIFARE® mode
Supports all layers of the ISO/IEC 14443 B communication scheme
Uses ISO/IEC 14443-4 and/or ISO/IEC 14443 B transport protocols, anticollision implemented
Operating distance for communication to a ISO/IEC 14443A / MIFARE® up to 50 mm
Supports MIFARE® Classic authentication and encryption
Operating frequency: 13.56 MHz
Operating voltage: 12 to 32 VDC;
Magnetic field strength (H) 7.5 A/m (Ampere per meter) maximum, as defined in ISO/IEC 14443-2
Cable length: 5 meter
Reader dimensions: 70 mm (diameter) x 13 mm (high)Connector type: 4-pin double row MOLEX connector for connecting to the cable CA31 or CA69

Communication of Passive RFID Reader and FOX3 Series Via Serial Link

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✓ Default communication settings: 38400 bps baud rate, 8 data bits, no parity, 1 stop bit✓ Provides audio feedback when passing the transponder (Tag) within HF-field of the reader.
✓ Power consumption: 40 mA @ 12 VDC (Standby)

1.3

What is needed to get started with FOX3-2G/3G/4G series and passive
RFID system?

The following devices and cables should be available to operate with a passive RFID reader and FOX32G/3G/4G series:
1. FOX3-2G/3G/4G series with its control-box (included in the promotion kit) that is needed to connect
the device to a PC and perform the device configuration.
2. RFID-A-B-EXT reader with 5 m cable,
3. CA31 - Main port extended installation cable with 2x4pin connector and open ends as well a 2x2pin
UCOM connector for connecting RFID readers to the main port (8pin with 1st RS-232) of the FOX3. Thiscan be provided by Lantronix. Contact technical support.
4. Or CA69 - Accessory port extended cable with 2x4pin connector and open ends as well a 2x2pin UCOM
connector for connecting RFID readers to the accessory port (6pin with 2st RS-232) of the FOX3. Thiscan be provided by Lantronix. Contact technical support.
5. One or more transponders/tags (RFID-TAG-TYPE-A),
6. Workbench software to load the configuration into the FOX3 device
7. Power source from +12 to +32 VDC

1.4

Hardware setup

This chapter explains how to connect and get started with RFID reader and FOX3-2G/3G/4G series. Follow
this four-step process to get started with RFID reader:
1.
2.
3.
4.

Connect a FOX3-2G/3G/4G series device to your PC with the help of Control-box.
Install the Workbench software and load the configuration into a FOX3 device.
Interface RFID reader with a FOX3 series device and power them up using the cable CA31 or CA69.
Start testing the device configuration for RFID reader.

1.4.1 Connecting a FOX3-2G/3G/4G series device to your PC
To connect a FOX3-2G/3G/4G series device to your PC use either the Control-box (included in the
promotion kit) or a USB cable* (USB 2.0 Cable A-Male to Mini-B-5pin-Male), connect it to the USB port on
the device and install the USB driver. The USB driver can be downloaded from our website:
https://www.lantronix.com/support/.
* Please note that, when using the USB cable for device configuration you have also to apply extra power to the FOX3-2G/3G/4G series.

If you are going to use the Control-box for connection of a FOX3-2G/3G/4G series device to a PC, go to our
website https://www.lantronix.com/products/fox3-series/ and download the document “FOX3/-3G
PROMOTION-KIT Getting Started” – then refer to the chapter 3.1.2 in that document.

Communication of Passive RFID Reader and FOX3 Series Via Serial Link

6

Figure 1:

Use the Control-box for connection of a FOX3-2G/3G/4G series device to a PC

1.4.2 Installing the Lantronix Workbench software and loading the configuration into the device
To be able to communicate with a FOX3 device and load a configuration into the device, you need to installthe
Workbench
software.
Go
to
this
link
and
to
downloadit:
https://www.lantronix.com/products/workbench/.
System requirements for using the Workbench software:(a) PC with 700 megahertz or higher processor Intel Pentium II or compatible processor recommended,(b) 512 megabytes (MB) of RAM or higher recommended (512MB minimum supported; may limit
performance and some features),(c) 90 megabytes (MB) of available hard disk space (recommended 2 gigabytes),(d) Keyboard and Mouse.
After downloading the Workbench software, double click that file to install it. An install shield will guide
you through the installation. An integrated online help can be found after the installation completes.

Figure 2:

Lantronix Workbench software

1. After completing the installation, double-click the Workbench.exe to start it. Open a new COM Port
from the Toolbar (1), on the COM Port view (2) choose the Port where FOX3-2G/3G/4G is connected(go to Device Manager > Ports > USB Serial Port (COMxx), where xx is the COM port to use), define theport settings (115200 bps, 8 Data bits, No Parity bit, 1 Stop bit, None Flow control) and finally, click theconnect (play) icon (2.1) to open that COM Port. You can also get an online help in HTML format if you
click "Help" button on the upper-right corner.
2. Open a new Console from the Toolbar (3), click on the Console1 (4), then go to Connection view andclick on COMPort (5).

Communication of Passive RFID Reader and FOX3 Series Via Serial Link

7

3. Open a new Editor from the Toolbar (6), click on the Editor1 (7), then go to Connection view and clickon Console1 (8).
4. To load the configuration or send commands to a FOX3-2G/3G/4G series device, type them on the
Editor (9) and then click on Start sending configuration (10) or double-click with left mouse eachconfiguration line on the Editor (9) individually.
5. Now, copy one of the configuration lines from one of the tables below and past them in the Editor (9)and perform the step 4 above.
Please note that, when loading the configuration with specific tag IDs shown in the examples below,
please change first the ID of your tag in the alarms (AL) and then send them to the device. Do notsend the alarms (AL) with the existing example IDs to the device. The alarms will not be triggered.
a) Reading Tags ID and sending them over TCP to your server
The example below demonstrates how to send the Tags ID to a TCP server. To send the ID readfrom a Tag together with the actual date, time and position to an internet server, then theconfiguration can be defined as follows:
Erase UART buffer$PFAL,CNF.Set,AL1=SYS.Device.eStart:MSG.Send.RawSerial0,0,"start"&MSG.Send.RawSerial1,0,"start"

When using CA31 cable for connection
All Tags ID$PFAL,CNF.Set,AL2=Sys.eSerialData0:TCP.Client.Send,8,"tag.id &(SerialData0)"

Specific Tag ID$PFAL,CNF.Set,AL3=Sys.eSerialData0="0A0B0C0D01020402":TCP.Client.Send,8,"tag.id &(SerialData0)"

When using CA69 cable for connection
All Tags ID$PFAL,CNF.Set,AL2=Sys.eSerialData1:TCP.Client.Send,8,"tag.id &(SerialData1)"

Specific Tag ID$PFAL,CNF.Set,AL3=Sys.eSerialData1="0A0B0C0D01020402":TCP.Client.Send,8,"tag.id &(SerialData1)"b) Reading Tags ID and storing them into the Flash (history)
Besides sending the read ID from a Tag from first serial port to the second one, it is also possible
to store such IDs (or specific one) inside the device and read it out later. If the Tags ID should only
be stored in history, then the configuration can be defined as follows:
Erase UART buffer$PFAL,CNF.Set,AL1=SYS.Device.eStart:MSG.Send.RawSerial0,0,"start"&MSG.Send.RawSerial1,0,"start"

When using CA31 cable for connection
All Tags ID$PFAL,CNF.Set,AL2=Sys.eSerialData0:GPS.History.Write,8,"tag.id &(SerialData0)"

Specific Tag ID$PFAL,CNF.Set,AL3=Sys.eSerialData0="0A0B0C0D01020402":GPS.History.Write,8,"tag.id &(SerialData0)"

When using CA69 cable for connection
All Tags ID$PFAL,CNF.Set,AL2=Sys.eSerialData1:GPS.History.Write,8,"tag.id &(SerialData1)"

Specific Tag ID$PFAL,CNF.Set,AL3=Sys.eSerialData1="0A0B0C0D01020402":GPS.History.Write,8,"tag.id &(SerialData1)"c)

Evaluating the Tag ID to open/close/activate something using a digital output
The following configuration demonstrates how to control an LED indicator (e.g. Output 1) using
the IDs of Tags. This configuration requires, two Tags, one reader that is connected to a Lantronix
device via cable CA31. You can also use specific Tag IDs to turn on or off the LEDs on the RFID
reader itself. For example, when the Tag with ID (e.g. D00218A765FBD301) is passed over thereader, the red LED on the RFID reader itself goes on and when the tag with ID(D00218A765FBD302) is passed, the red LED goes off. For more details about the hex-commandfor RFID reader, refer to chapter 1.5.

Erase UART buffer$PFAL,CNF.Set,AL1=SYS.Device.eStart:MSG.Send.RawSerial0,0,"start"&MSG.Send.RawSerial1,0,"start"

When using CA31 cable for connection

Communication of Passive RFID Reader and FOX3 Series Via Serial Link

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Specific Tags ID$PFAL,CNF.Set,AL2=Sys.eSerialData0="D00218A765FBD301":TCP.Client.Send,8,"tag.id&(SerialData0)"&MSG.Send.RawSerial0,0,"&(bin=0x01,0x35)"$PFAL,CNF.Set,AL3=Sys.eSerialData0="D00218A765FBD302":TCP.Client.Send,8,"tag.id&(SerialData0)"&MSG.Send.RawSerial0,0,"&(bin=0x01,0x36)"

When using CA69 cable for connection

Specific Tags ID$PFAL,CNF.Set,AL2=Sys.eSerialData1="D00218A765FBD301":TCP.Client.Send,8,"tag.id&(SerialData1)"&MSG.Send.RawSerial1,0,"&(bin=0x01,0x35)"$PFAL,CNF.Set,AL3=Sys.eSerialData1="D00218A765FBD302":TCP.Client.Send,8,"tag.id&(SerialData1)"&MSG.Send.RawSerial1,0,"&(bin=0x01,0x36)"

If desired to use an output port instead of LED, for example to keyless lock/unlock doors of avehicle for access management or activate a buzzer, fist replace the commands “IO12.Set=high”
and “IO12.Set=low” from AL2 and AL3 below by “IO5.Set=hpulse,500” and “IO5.Set=hpulse,500”
accordingly and then load the modified configuration to the device. Additionally to the device
configuration, you need to connect also the IO2 (PIN4) and IO3 (PIN5) in the main port of theFOX3-2G/3G/4G series to the vehicle’ door contacts.
To lock the door of your vehicle pass the tag with ID (e.g. D00218A765FBD301) over the reader
installed on the vehicle’ windscreen and to unlock pass the tag with ID (e.g. D00218A765FBD302)
over the reader.
Erase UART buffer$PFAL,CNF.Set,AL1=SYS.Device.eStart:MSG.Send.RawSerial0,0,"start"&MSG.Send.RawSerial1,0,"start"

When using CA31 cable for connection

Specific Tags ID$PFAL,CNF.Set,AL2=Sys.eSerialData0="D00218A765FBD301":TCP.Client.Send,8,"door.open&(SerialData0)"&IO12.Set=high [IO5.Set=hpulse,500]$PFAL,CNF.Set,AL3=Sys.eSerialData0="D00218A765FBD302":TCP.Client.Send,8,"door.close&(SerialData0)"&IO12.Set=low [IO6.Set=hpulse,500]

When using CA69 cable for connection

Specific Tags ID$PFAL,CNF.Set,AL2=Sys.eSerialData1="D00218A765FBD301":TCP.Client.Send,8,"door.open&(SerialData1)"&IO12.Set=high [IO5.Set=hpulse,500]$PFAL,CNF.Set,AL3=Sys.eSerialData1="D00218A765FBD302":TCP.Client.Send,8,"door.close&(SerialData1)"&IO12.Set=low [IO6.Set=hpulse,500]

6. Finally, copy also the configuration settings below and past them in the Editor (9) and then click oneither Start sending configuration (10) or double click with left mouse each configuration line on the
Editor (9) individually. The configuration below only adjusts the settings on the device serial port where
the reader is connected to.
Command mode

$PFAL,MSG.Mode.SERIAL0=40,C

In the command mode, the protocols and debug information are periodically output on the serial port of thedevice and the device listens to PFAL commands the user can send. Because the RFID reader will be connected
serially to the device, all outputs messages on this port should be switched off, otherwise the outgoingmessages to the reader may be misinterpreted.
Parameter

Parameter description for command mode=40,C

40:

Except the commands "$PFAL,MSG.Send.(Raw)Serial0,<prot>,<"text">"
outgoing messages from the device’ serial port to RFID reader are switched off.

C:

Sets the selected serial port into the command mode. This mode allows the device togenerate also events when receiving data on that serial port.

Note: After sending this command to the device, the output of data on this port is blocked. The default settingof the serial port is "PFAL,MSG.Mode.SERIAL0=7F,C".
Set baudrate$PFAL,Cnf.Set,DEVICE.SERIAL0.BAUDRATE=38400

Communication of Passive RFID Reader and FOX3 Series Via Serial Link

9

Description:

Default operation of serial ports of the FOX3-2G/3G/4G series devices is Command Modeusing a serial baud rate of 115200 bps. The RFID reader communicates with other devices
using fixed settings: 38400 bps baud rate, 8 data bits, no parity, 1 stop bit. Therefore, theserial interface (SER0) on the Lantronix device where the reader is going to be connected toshould manually be changed from default (115200 bps) to 38400bps. To change it, use thecommand with settings above.

1.4.3 Interfacing RFID reader with a device and power them up with the help of either CA31 or CA69
To interface both devices use either cable CA31 or CA69. The cable CA31 has an 8pin connector thatconnects to the FOX3 main (8pin) port, a 4pin UCOM connector that provides an RS-232 interface (RX, XT)
and power pins (IN+, GND) to communicate and power up the RFID reader device. At the end of CA31 there
are also the power supply lines that need to be connected to an external power source ranging from +12 to+32 VDC (e.g. 12 VDC in your vehicle). The cable CA69 has an 6pin connector that connects to the FOX3
accessory (6pin) port, a 4pin UCOM connector that provides an RS-232 interface (RX, XT) and a power line(IN+) to communicate and power up the RFID reader device. At the end of CA69 there is also the power
supply line that needs to be connected to an external power source ranging from +12 to +32 VDC (e.g. 12
VDC in your vehicle).

Figure 3: Connecting the RFID reader to a FOX3-2G/3G/4G series device

If you are using the cable CA31 to interface the RFID reader to a FOX3 device (see picture in section above),and connecting the power pins (V+ and GND) of this cable to a power source +12.00 to +32.00 VDC, thedevice and RFID reader will be powered up automatically.
If you are going to use the cable CA69 (see picture in section above) for interfacing the RFID reader with a
FOX3 device, you have to use an additional cable (e.g. CA70, CA68, CA39b or CA31) to apply power to a
FOX3 device. The RFID reader is then powered up when connecting the power pins (V+ and GND) of thecable CA69 to the power pins (V+ and GND) of the used cable for powering the device.
Note: When connecting the RFID reader to the cable CA31 or CA69, the lever and pitches on both 2x2
connectors should face the same direction before plugging in.
1.4.4 Testing the RFID reader with a FOX3-2G/3G/4G series device
This section describes how to test the configuration examples given in tables in the sections above. Afterloading one of the configuration examples above into one of the FOX3-2G/3G/4G series device andconnecting the RFID reader to the device, just pass a RFID Tag within the magnetic field of the RFID reader(it is about 2-4 cm above the reader) to see how the configuration of AL2 and AL3 works. A sound will behear when the RFID reader receives your tag ID. Log in into your server or our D2Sphere server and you will
see the identifier of that tag ID (tag.id or door.open/close) together with its ID sent to the server. Whenloading the configuration with LED from the example c) above into your device, then the LED on device
casing will go on and off corresponding the Tags passed over the reader.

Communication of Passive RFID Reader and FOX3 Series Via Serial Link10

If you would like to use other RFID Tags with our reader, then select only Tags that use chips like SRIX512
or compatible, other chip types have different read characteristics (protocols) and frequency and cannot
communicate with our RFID readers. The following are listed the key features for selecting compatible
Tags:
✓
✓
✓
✓
✓
✓
✓
✓

ISO 14443 B communication scheme
ISO 14443 - 4 and 14443 B transport protocols
ISO 14443 A MIFARE® mode
13.56MHz Carrier Frequency
847kHz Sub-carrier Frequency
106 kbit/s Data Transfer
8 bit Chip_ID based anti-collision system
64-bit Unique Identifier

1.5

Additional Hex commands to configure the RFID Reader

This chapter provides commands to configure the RFID-A-B-EXT RFID Reader for operation in a variety of
applications.
Note: A signal ton will be generated on the Reader if the command you send is not allowed. To send thesecodes to the reader use this command $PFAL,Msg.Send.RawSerial0,0,"&(bin=0x<HEX>,0x<HEX>)"<HEX>

Description of Hex commands

03 20 [freq] [len]Detection tone configuration[freq] : Sets the frequency of the tone (1 byte, value range 0.. F)[len]:
Sets the length of the tone (1 byte, value range 0.. F)

01 21

Clear stored RFID (for redetecting the same tag)

02 22 XX

Set Timeout for reading the same TAG in second max. 254 Sec.
XX
Timeout in seconds (default 02 22 01 for 1 second)
For example: 02 22 03 (after 03 seconds the reader can read the same TAG again)

01 30

Play startup sound

01 33

Set LED0 (green) to high

01 34

Set LED0 (green) to low

01 35

Set LED1 (red) to high

01 36

Set LED1 (red) to low

02 50 xx

Set baud rate on the reader’s serial port;
xx =Sets the baud rate on the reader serial port, e.g.:
19 = 19200 bps
38 = 38400 bps
57 = 57600 bps
For example:
02 50 19: Sets baud rate to 19200 bps
02 50 38: Sets baud rate to 38400 bps
02 50 57: Sets baud rate to 57600 bps
Set Header<xx>
Defines the length of the ID header including the flag 52 (the value FF is not allowed)
52
It is the flag for the header chars
yy1…yyn Defines the header value(s) in hex e.g. 10 02 FA 01.
For example: To set the header to 10 02 FA 01 you have to specify 05 51 10 02 FA 01

xx 51 yy1 … yyn

01 51

Clear Header

xx 52 yy1 … yyn

Set Terminator<xx>
Defines the length of the ID terminator including the flag 52 (the value FF is not allowed)
52
It is the flag for the terminator chars
yy1…yyn Defines the terminator value(s) in hex e.g. 10 02 FA 01.
For example: To set the terminator to 10 03 you have to specify 03 52 10 03

Communication of Passive RFID Reader and FOX3 Series Via Serial Link

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<HEX>

Description of Hex commands

01 52

Clear Terminator

02 53 XX

Set checksumXX
Defines what characters of the header will be used for CRC calculation.
Suppose you have set the header 1002FA01 and you want to calculate the CRC of the TAG
starting from the 3rd character of the header then send 025303. 03 is the 3rd character ofthe header.
02 53 FF: This command means: No CRC
To use all characters of the header for CRC calculation use this command: 02 53 01

01 54

Set the output mode in HEX

01 55

Set the output mode in ASCII
Table 3: Additional codes for configuration of RFID reader

Communication of Passive RFID Reader and FOX3 Series Via Serial Link

12

2 DOCUMENTATION
2.1

Additional documentation & software tools

If this application note does not cover all the information you need to setup, refer to the additional
documents listed below, which can be found on the Product Index or Application Notes pages.
Filename

Description

AVL_PFAL_Command_Set.pdf
FOX3_3G_4G_HardwareManual.pdf

Lists and describes all PFAL commands supported by the AVL devices.
Contains instructions for safety and operation of the FOX3/-3G device.
Provides all the necessary information about installing the Lantronix products
properly and safely.

AppNotes_AVL_Installation_Guide.pdf

Workbench Software

Description

Lantronix Workbench

Lantronix Workbench configuration tool (Windows XP, Windows Vista,
Windows 7)

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Communication of Passive RFID Reader and FOX3 Series Via Serial Link

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