Lyngsoe Systems S21 User manual

RFID System S21
User’s Guide

Lyngsoe RFID System S21 User’s Guide
Part Number: 950061
First Edition
August 2002
The information in this manual is for reference purposes only and is subject to change without notice. The contents of this manual and the
associated Lyngsoe S21 Series hardware are the property of Lyngsoe Systems and are copyrighted©. All rights are reserved by Lyngsoe Systems.
In no event is Lyngsoe Systems liable for incidental or consequential damages in connection with or arising from the use of this manual or any
related documentation. This document may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced to an electronic
medium or machine readable form without prior written consent from Lyngsoe Systems.
© 2002- 2007 Lyngsoe Systems. All Rights Reserved.
Lyngsoe is a registered trademark® of Lyngsoe Systems. All other product names and services listed are copyright and registered trademarks/trade
names of their respective owners.
Use, duplication or disclosure by the Government is subject to restrictions as set forth in subdivision (b)(3)(ii) of the Rights in Technical Data and
Computer Software clause at 252.227-7013. Lyngsoe Systems.
Printed in Canada.
Lyngsoe Systems
5570 Kennedy Road, Unit B
Mississauga, Ontario L4Z 2A9
CANADA
Tel: [phone]
Fax: [phone]

FCC CLASS A Digital Device or Peripheral - Information to the User
NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial
environment. This equipment generates, uses, and can radiate radio energy and, if not installed and used in accordance with this guide, may cause
harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which
case, the user will be required to correct the interference at his own expense.
WARNING:
Changes or modifications not expressly approved by Lyngsoe Systems could void the user’s authority to operate the equipment.

This page intentionally left blank.

Table of Contents:
Table of Contents: -1
Table of Contents:
: Table of Contents:
: List of Figures
: Preface S21
What This Manual Contains. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . i
Related Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ii
Text Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ii
Chapter 1: Introduction
Transponder Identification System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
RFID Specific Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Transponder. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Excitation Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Response Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Reading Points. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Communication Links. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
RFID System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Postal RFID System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
RFID System S21 Configuration Principles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Communication Links. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
System Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
System Code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Reader Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Real Time Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Receiving UHF Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Reader Data Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Reader Serial Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Reader Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Exciter Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Compatibility with RFID System 95. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Chapter 2: Reader RD21 Installation and Connections
Before You Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Mechanical Assembling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Connecting the RS232 Communication Line. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Connecting the RS485 Four-Wire Communication Line. . . . . . . . . . . . . . . . . . . . . . .3
Connecting the Exciter Communication Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Connecting the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
One Reader per power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Multiple Readers per power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Connecting External Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Chapter 3: Exciter EX21 Installation and Connections
Before You Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Mechanical Assembling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Assembling the LF Antenna for EX21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
LF Antenna Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Connecting the RS485 Communication Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Connecting the Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

One Exiter per power supply.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Multiple Exiters per power supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Assembling Other Models of Exciters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Chapter 4: Power Supply TRM95 Installation and Connection
Before you Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Tools. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Installing Power Supply TRM95. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Wiring Connections and Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Connecting Equipment to the Power Supply Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Connecting the AC Mains Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Chapter 5: Configuration and Operation
Before You Begin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
General Procedure Rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Setting Up the Reader/PC Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Reader’s Power-up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Learning Procedure (Optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Resetting the Reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Checking the Reader’s Basic Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Setting Up the Exciter’s Address. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
LF Transmitter Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Configuring the Reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Setting Up the Carrier Threshold. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Setting Up the Exciter’s Test-Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Setting Up the Real Time Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Configuring Reader Motion Sensor Driven Mode of Operation. . . . . . . . . . . . . . . . 14
Configuring Exciter Motion Sensor Driven Mode of Operation. . . . . . . . . . . . . . . . 15
Configuring the Reader’s Application Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Configuring the Reader’s Network Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Storing the Reader’s Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Reader - Final Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
S21 RFID System - Final Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Programming and Testing the Transponder PT21. . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
TQ21 - Tag Qualifier General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
TQ21 Installation and Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
PC Software Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
TQ21 Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
New parameters and commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Parameters and commands disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Hardware configuration parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Software configuration parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Testing Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Programming Tags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Chapter 7: Troubleshooting
Preventive Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
General Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Chapter 8: Drawings
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Table of Contents:
Table of Contents: -3
Appendix A: Specifications
Transponder PT21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Reader RD21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Exciter EX21 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Power Supply TRM95 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
System Performance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Appendix B: Transponder PT21 Messages
Message Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
PT21 Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Total Transmission Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Appendix C: Excitation Modes
Excitation Modes and Parameter Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Appendix D: Reader Software Upgrade Procedure
Upgrading the Firmware. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Setting the Reader’s Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Saving Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Using the RS232 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Using the RS485 Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Restoring Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Setting the Reader’s Network Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Final Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Appendix E: Reader Hardware Calibration Procedure
Introducing Special Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
: Glossary

List of Figures -1
List of Figures
2Figure 1-1:RFID Concept . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1
2Figure 2-1:Connections and Jumper Settings for the RS232 - PC Communication Line. . . . . . . . . . . . . . . . . . . . .2-2
2Figure 2-2:Connections and Jumper Settings for the RS485 Four-Wire Communication Line. . . . . . . . . . . . . . . .2-3
2Figure 2-3:Connections and Jumper Settings for the Exciter Communication Line . . . . . . . . . . . . . . . . . . . . . . . .2-4
2Figure 2-4:One Reader per Power Supply Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6
2Figure 2-5:Multiple Readers per Power Supply Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7
2Figure 2-6:External Devices Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-8
2Figure 3-1:LF Antenna Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3
2Figure 3-2:Connections and Jumpers Settings for the RS485 Communication Lines . . . . . . . . . . . . . . . . . . . . . . .3-4
2Figure 3-3:One Exciter per Power Supply Connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-5
2Figure 3-4:Multiple Exciters per Power Supply Connection.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-6
2Figure 5-1:Connecting the Reader to a PC/Laptop using RS232 interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2
2Figure 5-2:Connecting the Reader to a PC/Laptop using RS485 interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3
2Figure 5-3:Setting Up the Exciter’s Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7
2Figure 5-4:LF Signal Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-8
2Figure 5-5: MS connection to the Reader MBD21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-14
2Figure 5-6: MS connection to the Exciter LFA21.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-15

-2 List of Figures

What This Manual Contains
Preface S21 i
Preface S21
What This Manual Contains
This manual gives procedures for installing and configuring the Reader RD21,the Exciter EX21,
and programming the Transponder PT21. It also gives you maintenance and troubleshooting
procedures.
Summary A summary of the contents of this manual is given below:
Chapter 1, Introduction describes the Transponder Identification System and the Postal RFID
System. It also gives information on the RFID System S21 configuration principles.
Chapter 2, Reader RD21 Installation and Connections , explains how to install and connect the
Reader, set the jumpers for the interfaces, and connect external devices to the Reader, if necessary.
Chapter 3, Exciter EX21 Installation and Connections, explains how to assemble the Exciter using
the LF antenna kit and the Enclosure EX21 kit, make the LF antenna connection, connect the serial
interfaces and power supply and set the jumpers for the interfaces.
Chapter 4, Power Supply TRM95 Installation and Connection, explains how to install the unit and
make input and output connections to the unit.
Chapter 5, Configuration and Operation, provides procedures for setting up and configuring a
RFID System S21.
Chapter 6, Programming and Testing the Transponder PT21 provides a description of the
equipment used, how to set up a site and gives procedures for programming the Transponder PT21.
Chapter 7, Troubleshooting, describes maintenance and troubleshooting procedures that you must
follow when using the RFID System S21.
Chapter 8, Drawings, provides mechanical drawings for the RD21, EX21, and TRM95.
Appendix A, Specifications, gives electrical, environmental, and physical specifications for:
Transponder PT21, Reader RD21,Exciter EX21, and for the complete RFID System S21.
Appendix B, Transponder PT21 Messages, describes the PT21 Message format.
Appendix C, Excitation Modes, describes the various excitation modes (signal descriptions)and
their associated parameter setting.
Appendix D, Reader Software Upgrade Procedure, describes the procedures for upgrading
Reader’s RD21 main software using the serial interface.
The Glossary is an alphabetical listing of terms and acronyms used in this manual.

What This Manual Contains
ii Preface S21
Related Manuals
Technical Guide RFID System S21 Technical Guide. This Guide describes the RFID System S21. It includes
operation principles, block diagrams and electrical schematics for all equipmentand assembly parts
for the RFID System S21.
Reference Guide RFID System S21 Reference Guide. This Guide describes all the commands that control the RFID
operating system.
Text Conventions Helvetica is used for commands you must type exactly as it appears.
Italics is used for document titles, file names and new terms being defined.
Courier is used for messages displayed on the screen.

Transponder Identification System
Introduction 1-1
Chapter 1
Introduction
This chapter describes Transponders and their functions, the purpose of the Postal RFID System
and its uses. It also gives information on the RFID System S21 configuration principles.
Transponder Identification System
The purpose of a data capture or identification system that uses a Transponder as an identification
token is:
• To automatically identify animate or inanimate objects having attached a Transponder with an
unique identifier
• To ensure that information is available in a format that can be readily accepted by a computer
• To minimize the possibility of errors in the identification process.
The concept of Radio Frequency Identification (RFID) is presented in Figure 1-1.
Figure 1-1: RFID Concept
Reading Point
Transponder
Rx Tx µC
Tx µCRx
Downlink
Uplink
Interface Interface
Main
PC

RFID Specific Terms
1-2 Introduction
RFID Specific Terms
Transponder Transponders are devices that receive an excitation signal, and respond by transmitting back a
message. Transponders that are used in identification systems are sometimes referred to as
electronic tags or tags.
Excitation Signal The excitation signal is a form of electromagnetic energy and can operate anywhere in the RF
spectrum from a low-radio frequency to infra-red light. It can also have a special signature (pattern,
coding, etc.) to avoid false or unwanted excitations. When there is no excitation signal, the
Transponder is dormant (in sleep mode). Transponders do not transmit information
involuntarily.
Response Signal The Transponder’s response can be a separate RF transmission or a supplementary modulation of
the excitation signal. The response signal contains information that allows you to identify: the
transponder (the object to which it is attached), the reading point which excited the tag, battery
status etc. Some or all of this information may be stored in memory that can either be pre-coded
and unalterable, or re programmable.
Reading Points Reading Points are installed at strategic areas on the site where you want to identify objects that are
passing within a specified range. Reading Points generate the excitation signal and receive signals
transmitted by the Transponders. Data captured from the Transponders is then transferred to the
main computer. In so doing, the Reading Point functions as a relay or an interface that transfers
data from the Transponders to the main computer and vice-versa.
Communication Links When using Transponders and Reading Points, two wireless communication links exist. They are:
Uplink - from the Reading Point to the Transponder, and Downlink - from the Transponder to the
Reading Point.
RFID System Automatic identification systems vary in their complexity. An example of a simple system is a car-
park barrier that provides automatic vehicular-access control. A more complex example is a
network of on-line Readers and Exciters that communicate with a host computer that is managing
an automated industrial facility.
Postal RFID System
The International Postal Corporation (IPC) required international end-to-end mail performance
monitoring to implement new management and financial control systems. This monitoring and
controlling is supported by an internationalagreement known as REIMS (Remunerating Exchanges
of International Mails).
The Postal RFID System was developed in response to the IPC’s requirements.
The main objective of the Postal RFID System is:
• To monitor the movement of the probe letters at key points in the system
• To supply evidence of mailing system performance
• To highlight problem areas.

RFID System S21 Configuration Principles
Introduction 1-3
By using a RFID system comprising of a population of Transponders and strategically placed
Readers and Exciters, you can electronically monitor the path of test letters through the collection
and delivery process, particularly at points between Postal administrations and their agents.
Each probe letter includes a RFID Transponder bearing a unique identification. The probe letters
are posted, sorted, and delivered in the same way as normal letters. As they pass pre-determined
points en-route (Reading Points/identification zones), the Transponders are identified. The
collected information is then read and stored on local computers. This information is downloaded
on demand to a Central Management System (CMS).
The Postal RFID System includes the following main specific equipment:
• Transponders PT21 carrying the identification data
• Exciters EX21 to generate an electromagnetic (LF) field that excites the Transponder PT21
• Readers RD21 to receive data transmitted by the Transponder PT21(UHF) and to relay this
information via the RS-485 interface to the main computer
• Power Supply TRM95 to power Readers RD21 and Exciters EX21 from the local AC main
supply.
IMPORTANT This manual refers to S21 features and equipment associated with RFID System S21.
RFID System S21 Configuration Principles
The RFID System S21 is highly configurable, allowing you to setup operational parameters for the
optimum performance of the System. The sections that follow give some basic information
regarding the RFID System S21 configuration. A detailed description of the configuration, with a
focus on an IPC implementation, is given in Chapter 5, Configuration and Operation.
Communication Links There are several communication links between the components of the RFID System S21. As a
general rule, all equipment attached to a particular link must have the same parameters settings to
communicate. Some communication links can be configured, others, however, have fixed
configurations, as follows:
• Reader-to-Transponder: excitation (LF=125.0 kHz - uplink) - configurable;
writing (LF) - fixed configuration.
• Transponder-to-Reader (UHF-433.92 MHz - downlink) - configurable.
• Reader-to-Exciter and Exciter-to-Reader (RS485_COM, RS485_SGN) - fixed configuration.
• Reader- to-Main PC and Main PC-to-Reader (RS232 or RS485) - configurable.
System Parameters Parameters controlling the RFID System S21’s configuration are logically organized in groups. For
a detailed explanation on the meaning and usage of the parameters, refer to the RFID System S21
Reference Guide. The parameters settings that control the hardware configuration, is described in
Chapter 3, Theory of Operation in the RFID System S21 Technical Guide. This chapter gives
reasons for using certain parameters for configuring the hardware.
System Code A Reader RD21 needs a System Code to function properly. You use the ISC parameter to set the
System Code the first time. The System Code is a specially encoded number that distinguishes the
RFID System from all other similar systems in use. By obtaining your System Code from Lyngsoe
Systems, you are guaranteed a unique System Code.

RFID System S21 Configuration Principles
1-4 Introduction
Reader Address When a Reader is part of a network, it must have a unique address. The address is set by the IAD
parameter. Once the Reader has an address assigned, it will only process commands with the
address field matching the Reader’s address. In this way, you can direct commands over the
network to a specific Reader.
Real Time Clock The Reader RD21 has an on board Real Time Clock. Make sure that the date and time are correctly
set. The time can be queried and set using the IUT parameter. The presence of the seconds field in
the time stamp is optional and is controlled by the DTS parameter.
Receiving UHF Data The Reader needs to know the data format in which the Transponder is transmitting information to
properly receive and interpret the information. The Reader’s setting can be checked and modified
by the Group Rparameters.
A simple method of matching an unknown Transponder with the Reader’s parameters setting is
given below:
1. Use the programming setup described in Chapter 6, Programming and Testing the
Transponder PT21.
2. Query the Transponder. (See the Q command).
3. Check the Transponder’s parameters using the Group Tparameters.
4. Set an identical set of parameters for the Reader using the Group Rparameters.
Reader Data Handling Data that is captured from the Transponder is usually stored in an internal buffer. It is then sent to
the monitoring equipment either voluntarily (if DAR=Y), or in response to a query command. You
can customize the format and the fields using the Group Dparameters. By setting appropriate
values, you can greatly simplify the implementation of the monitoring software.
Reader Serial Port When setting the serial port parameters, remember that communication with the monitoring
equipment can result in a bottleneck in the RFID System. We recommend, therefore, using the
highest baud-rate available. Also, the line turn-around delay (STD parameter) can greatly degrade
the RFID System’s performance. This parameter must be set to 0, unless required otherwise. For
more information on the Group Sparameters, refer to the RFID System S21 Reference Guide.
Reader Reset There are two main ways to reset the Reader:
• Hardware reset
• Software reset.
For the hardware reset, switch off the Reader’s power supply for a least 5 seconds.

RFID System S21 Configuration Principles
Introduction 1-5
For the software reset, press the RESET button on the Motherboard MBD21 twice, or type the
command:
:RESET<Enter>
The software reset resets the Micro controller. The hardware reset resets the Micro controller and
runs a complete memory test for receiver REC21.
Exciter Address When an Exciter EX21 is part of a network, it must have a unique address. You can set the Exciter’s
address in a binary format between 0001 and 1110, using the S1 switch on the LFA21 board.
Once an address is assigned, the Exciter will only process commands with a matching address field.
In this way, you can direct commands in the network to a specific Exciter EX21.
Compatibility with
RFID System 95 RFID system S21 can be configured as an RFID System S95. By changing the configuration, the S21 system can completely simulate the functionality of a S95 system. To implement this the
following must be done:
•On the Exciter EX21[board LFA21] - set jumper P1 on the S95 Position.
•On the Reader RD21 [board CTL21] - set jumper P3 on the S95 position.
•Upgrade Reader RD21 software to version 6.10.06 or higher.
For more information regarding communications and upgrading firmware - see Appendix D.

RFID System S21 Configuration Principles
1-6 Introduction
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Before You Begin
Reader RD21 Installation and Connections 2-1
Chapter 2
Reader RD21 Installation and Connections
This chapter explains how to:
• Install the Reader Module Assembly into the Reader’s enclosure
• Connect the serial interfaces and the power supply
• Set the jumpers for interfaces
• Connect the external devices to the Reader RD21 (optional)
Before You Begin
Before installing the Reader:
•ReadChapter4,Setup Guidelines in the RFID System S21 Technical Guide.
• Have at your disposal, the complete approved documentation describing the RFID System
configuration, equipment location, and wiring distances between the equipment (see the Site
Survey Documentation).
• Check whether the Reader’s enclosure, power supply and interconnection cable with the main
PC are installed on the site according to the approved documentation (see the Site Survey
Documentation).
• Set a color table for each interface and power supply cables. Pay special attention to the
interface terminals, cable shields, and the ground wires.
• Check whether the Reader’s Kit (P/N 600014) is complete according to the product shipping
list.
• Check if jumper P3 on the board CTL21 is set on position S21.
Mechanical Assembling
To assembly the Reader RD21, refer to assembly drawing in Chapter 8, Lyngsoe Systems Reader
RD21 (600002), and complete the following steps:
1. Install the RF assembly cables (P/N 500053) on the Reader’s enclosure using a 13 mm fix key.
2. Install the Reader RD21 Module Assembly (P/N 500020)into theEnclosure Base and secure it
using the four 6-32x1/4 inch screws from the Reader RD21 Kit.
3. Connect the two RF cables to the Receiver REC21 - RF inputs. The REC21 is the middle
board of the Reader Module Assembly.

Connecting the RS232 Communication Line
2-2 Reader RD21 Installation and Connections
Connecting the RS232 Communication Line
The RS232 data transmission line is used for point-to-point communication with a local PC. This
connection can be used during the RFID System S21 configuration or troubleshooting. The RS232
connector and the selection jumper are located on the Motherboard MBD21. The MBD21 is the
bottom board of the Reader Module Assembly.
Note For the RS232 line, use specially designed cables only, such as, BELDEN type 8102, or a standard
PC cable used for RS232 interconnections. For more information, see the RFID System S21
Technical Guide.
To connect the RS-232 communication line to the Reader, refer to Figure 2-1 and.
Figure 2-1: Connections and Jumper Settings for the RS232 - PC Communication Line
Complete the following steps:
1. Unplug terminal block TB8 from connector TB7.
2. Connect the communication wires TX, GND and RX to the corresponding TB8 pins. The TB7
connector pins are marked TX and RX on the Component side.
3. Place the jumper P3 between pins 1-2 of J3 (RS232 position).
4. Plug terminal block TB8 back into connector TB7.
Interface
Selection
J3 RS485
RS232
TX RX
GND
RESET
CNO COM CNC
A B GP Z Y A B GP Z Y
+ - GND MS I/0 + 8V DTA PWR
J1
Load
Open J2
Load
Open
DATA
POWER
Controller CTL21
J2
S95
S96/S21
J3
J1
Load
Open
Load
Open
TB8
P3