TransCore 2611SS IT2611 RF Transmitter User Manual install

TransCore IT2611 RF Transmitter install

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2611SS User Manual HTML Version

NEW Users Manual

IT2200 Reader System

P/N 411554

Installation & Maintenance/Service Guide

with Multimode Capability

Information in this document is subject to change and does not represent a commitment on the part of

TransCore, Inc.

Amtech, SmartPass, Dynicom, and PassKey are registered trademarks of TransCore, Inc. The PassKey system

is covered by U.S. Patents 5,414,624 and 5,737,710. All other trademarks listed are the property of their

respective owners. Printed in the U.S.A.

For further information, contact:

TransCore

19111 Dallas Parkway, Suite 300

Dallas, Texas 75287-3106 USA

Phone: (972) 733-6600

Fax: (972) 733-6699

TransCore Action Center (TrAC)

19111 Dallas Parkway, Suite 300

Dallas, Texas 75287-3106 USA

Phone: (972) 733-6681

Fax: (972) 733-6695

WARNING TO USERS IN THE UNITED STATES

FEDERAL COMMUNICATIONS COMMISSION (FCC) RADIO FREQUENCY

INTERFERENCE STATEMENT

47 CFR §15.105(a)

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 Federal Communications Commission (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 frequency (RF) energy

and may cause harmful interference to radio communications if not installed and used in accordance with

the instruction manual. Operating this equipment in a residential area is likely to cause harmful

interference, in which case, depending on the laws in effect, the users may be required to correct the

interference at their own expense.

NO UNAUTHORIZED MODIFICATIONS

47 CFR §15.21

CAUTION: This equipment may not be modified, altered, or changed in any way without permission

from TransCore, Inc. Unauthorized modification may void the equipment authorization from the FCC and

will void the TransCore warranty.

USE OF SHIELDED CABLES IS REQUIRED

47 CFR §15.27(a)

Shielded cables must be used with this equipment to comply with FCC regulations.

A license issued by the FCC is required to operate this RF identification device in the United States.

Contact TransCore, Inc. for additional information concerning licensing requirements for specific devices.

TransCore, Inc.

USA

Contents

1 Before You Begin

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Intended Audience . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Guide Topics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

Related Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Typographical Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Licensing Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-5

U.S. Licensing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Health Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

2 Theory of Operation

Overview of RFID Theory 2-3

Components 2-3

Reader 2-4

RF Module 2-5

Antennas 2-5

Tags 2-7

Host Computer 2-8

Operational Characteristics 2-8

Reading Range 2-9

Reading Speed 2-9

Number of Characters Stored in Tag 2-9

Number of Characters Written to an IT2200-Series Tag 2-9

Coding Format of the Tag Data 2-9

Tag Orientation and Placement 2-10

Noise and Interference Immunity 2-10

Frequency and Power 2-11

Tag Lifetime 2-11

Tag Read/Write Accuracy Rate 2-11

Amtech RF Technology 2-11

Signal Transmission and Acquisition 2-12

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

Automatic Vehicle Identification Transaction Process 2-12

Types of RFID Transactions 2-12

3 System Components

Overview 3-3

IT2020 Reader Logic Card 3-5

Functions 3-5

Features 3-6

IT2611 RF Module (Bistatic and Monostatic) 3-7

RF Module Connections 3-9

Transmit Connector (Bistatic RF Module) 3-9

Receive Connector (Bistatic RF Module) 3-9

Transmit/Receive Connector (Monostatic RF Module) 3-9

Check Tag Connector 3-10

Data Connector 3-10

Power Supply Connector 3-10

Functions 3-10

Features 3-10

Type Testing 3-11

RF Emissions 3-11

Antennas 3-13

AA3152 Universal Toll Antenna 3-13

Functions 3-13

Features 3-14

AA3153 Beacon Antenna 3-14

Functions 3-14

Features 3-14

IT2502 Check Tag Antenna 3-14

Check Tag 3-14

Tags 3-15

IT2221 Tag 3-15

Functions 3-17

Features 3-18

IT2211 Exterior Tag 3-18

IT2235 Tag 3-19

Functions 3-20

Features 3-21

ATA Tag 3-23

Tag Programmer 3-23

IT2410 Tag Programmer 3-24

Contents

Functions 3-24

Features 3-25

4 Installing the IT2200 Reader System

Assessing the Site and Formulating a Frequency Plan 4-3

Site Preparation Checklist 4-4

Components Checklist 4-4

Task Checklist 4-5

Where to Mount the Components 4-5

Canopy Mount 4-6

Overhead Gantry Mount 4-7

Overpass Mount 4-8

Cantilever Arm Mount 4-9

Lane-side “Pillbox” Mount 4-11

Installing the IT2200 Reader System 4-13

Installing the IT2020 Reader Logic Card 4-14

Installing the IT2611 RF Module 4-17

Installing the AA3152 UTA 4-19

Installing the AA3153 Beacon Antenna 4-21

Installing the IT2502 Check Tag Antenna with a UTA 4-23

Installing the IT2502 Check Tag Antenna with a Beacon Antenna 4-24

5 Tuning the Lane

Why You Need to Tune a Lane 5-3

Required Equipment 5-4

Optional Equipment 5-4

Tuning the Lane 5-5

Starting the Engineering Host 5-5

Lane Tag Test 5-6

Check Tag Test 5-9

IT2000 Check Tag Test 5-9

ATA Check Tag Test 5-11

Testing the Footprint 5-11

Running the CAM Test for IT2200-Series Tags 5-11

Tag-on-a-Stick Test for IT2235 Tag 5-12

Running the CAM Test for ATA-Type Tags 5-13

Tag-on-a-Stick Test Using ATA-Type Tag 5-13

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

xii

Vehicle-Mounted Tag Test Using IT2235 Tag 5-13

Vehicle-Mounted Tag Test Using ATA-Type Tag 5-14

Dynamic Performance Test 5-15

Starting the Dynamic Performance Test 5-15

IT2235 Dynamic Performance Drive-Through Tag Test 5-16

IT2221 Dynamic Performance Drive-Through Tag Test 5-16

ATA Tag Dynamic Performance Drive-Through Tag Test 5-17

Adjusting the Read/Write Zone 5-18

Completing Antenna Connections 5-18

6 Troubleshooting the Installation

Required Equipment 6-3

Cross-Lane Interference in RFID Systems 6-3

What Is Cross-Lane Interference? 6-3

Determining Acceptable Lane Performance 6-4

Identifying Cross-Lane Interference 6-4

Diagnosing Cross-Lane Interference 6-5

Remedying Cross-Lane Interference 6-5

Frequency Separation 6-6

RF Power 6-6

Time Division Multiplexing 6-6

Physical Remedies 6-8

Troubleshooting Indications and Actions 6-10

Removal and Replacement Procedures 6-17

Reader Logic Card 6-17

Removal 6-17

Replacement 6-17

RF Module 6-18

Removal 6-18

Replacement 6-18

Transmit/Receive Antennas 6-18

Removal 6-18

Replacement 6-18

Check Tag Antenna 6-19

Removal 6-19

Replacement 6-19

Data Cable 6-20

Removal 6-20

Replacement 6-20

Antenna Cable 6-20

Removal 6-20

Contents

xiii

Replacement 6-20

7 Preventive Maintenance

Preventive Maintenance Schedule 7-3

Visual Inspection 7-3

A Acronyms and Glossary

B Block Diagrams

IT2200 Reader System with Multimode Capability B-3

IT2020 Reader Logic Card B-5

IT2611 RF Module B-9

C System Technical Specifications

Component Specifications C-3

IT2020 Reader Logic Card C-3

Electrical Specifications C-3

Environmental Specifications C-4

Physical Specifications C-4

IT2611 RF Module C-5

Interfaces C-5

Electrical Specifications C-5

Environmental Specifications C-5

Physical Specifications C-6

Housing Specifications C-6

AA3152 Universal Toll Antenna and

AA3153 Beacon Antenna C-6

Environmental Specifications C-7

IT2502 Check Tag Antenna C-7

D Hardware Interfaces

Reader Logic Card Hardware Interconnection D-3

16 Bit ISA Bus D-4

Optional External Power D-5

Expansion Interfaces (Industry Pack) D-5

LEDs D-6

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

xiv

Time Division Multiplexing Connector D-6

Background Debugger Connector D-7

General Purpose I/O Port (IT2020-004 Reader) D-8

Hardware Diagnostic Port D-8

RS-232 D-10

IT2020 Reader Logic Card Interface D-11

Pin Designations D-11

IT2020 ISA Card Interface Connector D-11

Interface Connector D-19

Power Connector D-20

Reader-to-RF Module Communications D-20

RF Module Interface Connector D-21

IT2410 Tag Programmer Hardware Interconnection D-23

E Connector Pinouts

IT2020 Reader Logic Card E-3

Tag Data/Control E-3

TDM E-5

ISA Bus E-5

IP Module Logic Interface E-9

IP Module I/O Connector E-11

Auxiliary Power E-13

BDM E-14

General Purpose I/O E-15

HW Diagnostics Port E-16

RS-232 E-17

IT2611 RF Module E-18

Index

(Index to be supplied with final version of guide.)

List of Figures

Figure 2-1 Typical RFID Components for a Bistatic (Two-Antenna) Configuration . . . . . . . . . . . 2-4

Figure 2-2 Field Size, Shape, and Antenna Polarization Define the Reading Range

(Bistatic Configuration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Figure 2-3 Field Size, Shape, and Antenna Polarization Define the Reading Range

(Monostatic Configuration) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6

Figure 2-4 Tag Orientation with Linear Polarized Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10

Figure 2-5 Typical Read/Write Transaction Using the IT2200 Reader System and an

IT2200-Series Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-13

Figure 2-6 Four Transactions Can Occur Within 96 Milliseconds . . . . . . . . . . . . . . . . . . . . . 2-14

Figure 2-7 Typical Read-only Transaction Using the IT2200 Reader System in

ATA Mode Operation with an ATA-Type Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Figure 2-8 Typical Dedicated Read-Only Transaction Using the IT2200 Reader System in

Multimode Operation with an ATA-Type Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15

Figure 2-9 Typical Read-Only Transaction Using the IT2200 Reader System in

ATA Mode Operation with an ATA-Type Tag . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16

Figure 3-1 Relationship of the IT2200 Reader System Components

(Bistatic Installation Shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3

Figure 3-2 IT2020 Reader Logic Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5

Figure 3-3 IT2020 Reader Logic Card Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7

Figure 3-4 IT2611 RF Module Connections (Bistatic Configuration) . . . . . . . . . . . . . . . . . . . . 3-8

Figure 3-5 IT2611 RF Module Connections (Monostatic Configuration) . . . . . . . . . . . . . . . . . . 3-9

Figure 3-6 Tag Orientation with Linear Polarized Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . 3-13

Figure 3-7 IT2221 Tag Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16

Figure 3-8 Alternative Mounting Locations for IT2221 Tag . . . . . . . . . . . . . . . . . . . . . . . . . 3-17

Figure 3-9 IT2211 Tag Placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18

Figure 3-10 IT2235 Tag Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19

Figure 3-11 IT2235 Tag Display Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22

Figure 3-12 IT2410 Tag Programmer System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24

Figure 3-13 Tag Programming Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-25

Figure 4-1 Canopy Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6

Figure 4-2 Overhead Gantry Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7

Figure 4-3 Overpass Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-8

Figure 4-4 Cantilever Arm Mount (Bistatic Configuration) . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-9

Figure 4-5 Cantilever Arm Mount (Monostatic Configuration) . . . . . . . . . . . . . . . . . . . . . . . 4-10

Figure 4-6 Bistatic Laneside Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11

Figure 4-7 Monostatic Laneside Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-12

Figure 4-8 Antenna Placement for Pillbox Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-13

Figure 4-9 IT2020 Reader Logic Card Installed in Typical Host Computer or Lane Controller

Chassis (Top View) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Figure 4-10 IT2020 Reader Logic Card Factory Dipswitch Settings . . . . . . . . . . . . . . . . . . . . 4-15

Figure 4-11 Frequency Enable Switch on Rear of IT2020 Reader Logic Card . . . . . . . . . . . . . 4-16

Figure 4-12 Location of Battery Jumper (J8) in Relation to Battery . . . . . . . . . . . . . . . . . . . . 4-16

Figure 4-13 IT2611 RF Module Mounting and Components for Both Monostatic

and Bistatic Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-18

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

xvi

Figure 4-14 IT2611 RF Module Connectors (Monostatic RF Module Shown) . . . . . . . . . . . . . 4-19

Figure 4-15 AA3152 UTA Mounting and Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20

Figure 4-16 AA3153 Beacon Antenna Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22

Figure 4-17 IT2502 Check Tag Antenna Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-23

Figure 5-1 Background Status Information Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6

Figure 5-2 Sample RF Attenuation Statistics for Check Tag . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

Figure 5-3 Acceptable RF Attenuation Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8

Figure 5-4 Ranges of RF Attenuation Statistics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9

Figure 5-5 Sample Continuous Check Tag Read Request Display . . . . . . . . . . . . . . . . . . . . . 5-10

Figure 5-6 Typical Read/Write Zone for a Reader (Bistatic Configuration) . . . . . . . . . . . . . . . 5-12

Figure 5-7 Location of LEDs on Reader Logic Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-17

Figure 6-1 RF Footprint Extends Beyond Lane Boundaries (Bistatic Configuration Shown) . . . . . 6-5

Figure 6-2 TDM Synchronization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-7

Figure 6-3 Antenna Tilt Angle Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-9

Figure 6-4 Downlink Antenna Side Angle Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-10

Figure 6-5 Location of Battery Jumper (J8) in Relation to Battery . . . . . . . . . . . . . . . . . . . . 6-12

Figure 6-6 Frequency Enable Switch on Rear of IT2020 Reader Logic Card . . . . . . . . . . . . . . 6-12

Figure 7-1 Visual Inspection Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4

Figure B-1 IT2200 Bistatic Reader System Functional Block Diagram . . . . . . . . . . . . . . . . . . . B-3

Figure B-2 IT2200 Monostatic Reader System Functional Block Diagram . . . . . . . . . . . . . . . . B-4

Figure B-3 IT2020 Reader Logic Card Functional Block Diagram . . . . . . . . . . . . . . . . . . . . . . B-5

Figure B-4 IT2020 Reader Logic Card Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-6

Figure B-5 Minimum Connections for the IT2020 Reader Logic Card Interface

(Bistatic Application) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-7

Figure B-6 Minimum Connections for the IT2020 Reader Logic Card Interface

(Monostatic Application) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-8

Figure B-7 IT2611 RF Module Functional Block Diagram (Bistatic Configuration) . . . . . . . . . . . B-9

Figure B-8 IT2611 RF Module Functional Block Diagram (Monostatic Configuration) . . . . . . . B-10

Figure D-1 Locations of Switches on IT2020 Reader Logic Card . . . . . . . . . . . . . . . . . . . . . . D-4

Figure D-2 Typical TDM Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-6

Figure D-3 Locations of LEDs on IT2020 Reader Logic Card . . . . . . . . . . . . . . . . . . . . . . . . D-18

Figure D-4 Bistatic RF Module Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-19

Figure D-5 Monostatic RF Module Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-19

Figure D-6 Twenty-six Pin Connector Showing Terminal Designators (RF Module) . . . . . . . . . D-20

Figure D-7 IT2410 Tag Programmer Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . D-24

List of Tables

xvii

List of Tables

Table 1-1 Typographical Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

Table 2-1 Time and Distance Required to Complete Payment Zone . . . . . . . . . . . . . . . . . . . 2-14

Table 3-1 IT2611 RF Module Uplink and Downlink Specifications . . . . . . . . . . . . . . . . . . . . 3-12

Table 3-2 Example of Condition Code Bit Programming for IT2235 Tag . . . . . . . . . . . . . . . . . 3-21

Table 3-3 Audio/Visual Options Bits Decoding for IT2235 Tag . . . . . . . . . . . . . . . . . . . . . . . 3-23

Table 3-4 IT2410 Tag Programmer Indicator LEDs and Descriptions . . . . . . . . . . . . . . . . . . . 3-26

Table 4-1 Example Frequency Plan for Four-Lane Plaza . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-4

Table 4-2 Listing of Shorted Pins for Loopback Connector . . . . . . . . . . . . . . . . . . . . . . . . . . 4-14

Table 6-1 Frequency Plan for Four-Lane Toll Plaza . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-6

Table 6-2 Frequency Settings Using TDM for Four-Lane Toll Plaza with TDM . . . . . . . . . . . . . . 6-8

Table 6-3 Failure Indicated by Host Software Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . 6-11

Table 6-4 Failure During Check Tag Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-13

Table 6-5 Unacceptable RF Attenuation Statistics Using Check Tag . . . . . . . . . . . . . . . . . . . 6-13

Table 6-6 Unacceptable RF Attenuation Statistics Using Vehicle-Mounted Tag . . . . . . . . . . . 6-13

Table 6-7 Self-Test Fail LED on Reader Logic Card Lights . . . . . . . . . . . . . . . . . . . . . . . . . . 6-14

Table 6-8 Spotty Pattern or Low Handshake Counts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-15

Table 7-1 Preventive Maintenance Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3

Table C-1 IT2020 Reader Logic Card Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . C-3

Table C-2 IT2020 Reader Logic Card Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . C-4

Table C-3 IT2020 Reader Logic Card Environmental Tolerances . . . . . . . . . . . . . . . . . . . . . . C-4

Table C-4 IT2020 Reader Logic Card Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . C-4

Table C-5 IT2611 RF Module Electrical Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-5

Table C-6 IT2611 RF Module Environmental Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . C-6

Table C-7 IT2611 RF Module Physical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-6

Table C-8 Antenna Environmental Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-7

Table D-1 Optional External Power Pin Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-5

Table D-2 TDM Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-7

Table D-3 BDM Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-7

Table D-4 General Purpose I/O Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-8

Table D-5 Hardware Diagnostic Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-9

Table D-6 RS-232 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-10

Table D-7 IT2020 Reader Logic Card Default I/O Settings . . . . . . . . . . . . . . . . . . . . . . . . . . D-11

Table D-8 IT2020 Reader Logic Card Default IRQ Settings . . . . . . . . . . . . . . . . . . . . . . . . . D-11

Table D-9 ISA Bus Pin Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-11

Table D-10 Optional External Power Pin Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-15

Table D-11 IP Module Logic Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-15

Table D-12 IP Module I/O Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-17

Table D-13 LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-18

Table D-14 RF Module-to-Reader Logic Card Interface Connector . . . . . . . . . . . . . . . . . . . . D-21

Table D-15 RF Module Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-23

Table D-16 RF Module-Antenna Connectors for Bistatic Operation . . . . . . . . . . . . . . . . . . . . D-23

Table D-17 RF Module-Antenna Connectors for Monostatic Operation . . . . . . . . . . . . . . . . . D-23

Table D-18 IT2410 Tag Programmer Interconnection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . D-24

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Table E-1 Tag Data/Control Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-3

Table E-2 TDM Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-4

Table E-3 ISA Bus Pin Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-5

Table E-4 IP Module Logic Interface Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-9

Table E-5 IP Module I/O Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-11

Table E-6 Auxiliary Power Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-13

Table E-7 BDM Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-14

Table E-8 General Purpose I/O Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-15

Table E-9 Hardware Diagnostics Port Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-16

Table E-10 RS-232 Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-17

Table E-11 RF Module-To-Reader Logic Card Interface Connector . . . . . . . . . . . . . . . . . . . . E-18

Table E-12 RF Module Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-19

Table E-13 RF Module-Antenna Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E-19

Before You Begin

1-3

Chapter 1

Before You Begin

This chapter describes this guide’s purpose and intended audience. It

provides a list of topics covered in each section, a list of related

documents, and the symbols and typographical conventions used. A

discussion on licensing requirements and health limits for radio

frequency devices is also included.

Purpose

This guide provides the information necessary for TransCore-certified personnel to

successfully install an Amtech® IT2200 Reader System with Multimode Capability at

an electronic toll collection (ETC) site that has been designed and built to use this sys-

tem.

Intended Audience

This guide should be used by TransCore-certified personnel who will design, config-

ure, program, and test the Amtech® IT2200 Reader System with Multimode Capabil-

ity in the field.

Guide Topics

This installation guide contains the following chapters and appendixes:

Chapter 1 – Before You Begin Describes the purpose, intended audience, guide topics, related

documentation, and document conventions. Also contained are

licensing requirements and health limits for the RFID equipment.

Chapter 2 – Theory of Operation Provides an overview of RFID theory, Amtech® RFID

technology, and operational characteristics of the IT2200 Reader

System with Multimode Capability.

Chapter 3 – Overview of the IT2200

Reader System Describes the individual components and their

interrelationships.

Chapter 4 – Installing the IT2200

Reader System Provides instructions for installing the system.

Chapter 5 – Tuning the Lane Provides instructions for testing and tuning an installed system.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

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Tags

Tags are self-contained RFID devices that are capable of two-way communications

with a reader. Tags are available for interior or exterior installation. The IT2200

Reader System with Multimode Capability can read and write to IT2221, IT2211, and

IT2235 tags, and can read ATA tags. Tags used with the IT2200 system are passive,

battery powered. These tags are described in the following sections.

IT2221 Tag

The IT2221 Tag communicates with a reader via RF using an open protocol that has

been adopted by various transportation agencies. In addition, the IT2221Tag com-

mand set provides powerful capabilities for read/write access control and a non-pro-

prietary time division, multiple access (TDMA) protocol that can communicate with

multiple tags within an open-road configuration using a single reader. The multimode

version of this tag (IT2200 and ATA) is also available.

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Figure 3-12 illustrates the IT2221 Tag block diagram.

Figure 3-7 IT2221 Tag Block Diagram

System Components

3-17

The IT2221 Tag is designed to be mounted inside a vehicle on the windshield (see

Figure 3-8). This tag has no visual displays or indicators and is used in all applications

where driver feedback is not necessary. The tag can be used on any vehicle.

Figure 3-8 Alternative Mounting Locations for IT2221 Tag

The remainder of this section describes the IT2221 Tag function and features.

Functions

The IT2221 Tag has the following technical and functional capabilities:

•Built-in self-test (BIST) capability to indicate random access memory (RAM)

failure or low battery

•Operational life of eight years, from time of manufacture

•-20°C to +75°C (-4°F to +167°F) operating temperature

•915-MHz band operation

•300kbps data rate transfer

•Read/write capability and 16 pages (256 bytes) of RAM

•Full data retention provided during a power loss

•Eight-year battery from time of manufacture

•Data protection using read and write passwords for each individual page

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Features

The IT2221 Tag design provides full internal diagnostics indicating status of the

following:

•Internal RAM

•Low battery voltage indication

•Splash resistant (sealed, waterproof version is also an option)

Results of the BIST are in the form of single-bit characters that are transmitted to a

lane controller the next time the tag enters a read zone. One of the following two mes-

sages is generated and sent to the lane controller if BIST results reveal a problem:

•Memory failure

•Low battery

IT2211 Exterior Tag

The IT2211 Exterior Tag is identical in functions and features to the IT2221 Tag, but

the IT2211 Exterior Tag circuitry is enclosed in a sealed watertight case that makes it

ideal for mounting on the exterior of a vehicle (see Figure 3-9). The tag's case pro-

vides resistance to chemicals and other agents typically found in transportation envi-

ronments and is UV stabilized. The IT2211 Tag can be mounted on either metallic or

non-metallic surfaces. A multimode version of this tag is planned for release in mid-

2001.

Figure 3-9 IT2211 Tag Placement

System Components

3-19

IT2235 Tag

The functionality of the IT2235 Tag is the same as that of the IT2221 Tag. However,

the IT2235 Tag has audio tones, LED lights, and an indicator screen to display trans-

action activity to the driver.

Figure 3-10 shows an IT2235 Tag block diagram.

Figure 3-10 IT2235 Tag Block Diagram

The IT2235 Tag is designed to be mounted inside a vehicle on the windshield (see

Figure 3-8). This tag uses visual and audio displays or indicators to provide the driver

with tag status and account information. The tag can be used on any vehicle.

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Functions

The IT2235 Tag has the same BIST capability as the IT2221 Tag. Results of the

self-tests are stored and accessed in the same manner described for the IT2221 Tag. A

unique visual and/or audio indication can be activated on the tag by either a

programmer, portable reader, or in-lane reader as a means of providing notification of

these test results.

The rates for downlink messages and uplink messages are as follows:

The LCD alphanumeric display of the IT2235 Tag is activated in the following man-

ner:

•The LCD automatically displays messages during a transaction.

•The LCD displays on demand by pressing the button.

The tag’s alphanumeric LCD is automatically activated during the transaction to

display the messages indicated in this section. These messages have an automatic

shut-off after a time delay of 4 seconds and require no intervention from the patron. If

the patron wants to view additional messages sent by the toll agency, they are

available by scrolling through using the button. After a time delay of 4 seconds, the

LCD display clears itself, allowing the tag to go to a low power mode.

The alphanumeric LCD is also activated by pressing the button. The message readout

consists of 16 characters. The message displays on a single line for ease of reading.

Table 3-2 shows the condition code bits. These condition code bits each represent a

condition applicable to a tolling environment. There are 8 different conditions that can

arise, and there can be multiple conditions. The condition with the highest priority is

the sequence that is displayed upon receipt of a general ACK request. The other

conditions can be accessed by cycling to them using the pushbutton switch on the tag.

Downlink data rate Encoded: 300 kbps

Manchester decoded: 300 kbps

Uplink data rate Encoded: 600/1200 kHz

FSK decoded: 300 kbps

System Components

3-21

Table 3-2 Example of Condition Code Bit Programming for IT2235 Tag

Note: * Denotes that the data to be inserted in ±XXX.XX is pulled from the balance/

tolling page specified in page 0000 configuration.

Another method of displaying a message on the IT2235 tag is by using the LCD

custom message feature. This method allows the user to write a 16-byte maximum

ASCII message to a page in the tag and then command the message written to that

page to display upon receipt of the sign-off command. The tag is commanded to

display this information by setting a hex data field in the sign-off command, which is

called the LCD message page pointer.

The LCD message page pointer is a one-byte field that points to the page where the

LCD message to display is stored in ASCII. The valid range for the page pointer is

02H to 0FH. If this field is non-zero, the tag, upon receipt of a general ACK

command, displays this ASCII data to the LCD display from the page specified in this

field. The A/V sequence specified in the A/V options bits are associated with this

action. All condition code bits are stored for later retrieval by cycling with the

pushbutton.

Features

The IT2235 Tag features include an alphanumeric LCD; red, yellow, and green

light-emitting diode (LED) visual indicators; an audio buzzer with varying tonal

qualities; and a pushbutton for displaying the last reported toll balance and the last

message written to the tag (see Figure 3-11). The alphanumeric display is visible in all

daylight and nighttime conditions by use of LCD technology and backlighting.

Bit Condition Message Indicator Tone Priority

7 Negative list Invalid Red Low 1

6 Insufficient funds Insuff Bal Red Low 2

5 Low battery Low Battery Flash red Low-Low-

Low 3

4* Conversion to cash/ticket Cur Bal=±XXX.XX Flash green Low-High 4

3* Account replenishment New Bal=±XXX.XX Flash green High-High 5

2 Good read/low balance Low Balance Yellow High-Low-

High-Low 6

1* Good read Toll=±XXX.XX Green High 7

0 Good read/Pass used Pass used Green High 8

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Figure 3-11 IT2235 Tag Display Features

The IT2235 Tag is suitable for mounting inside a vehicle and operates from the

interior of any vehicle type. The IT2235 Tag has read/write capability and the same 16

pages of random access memory (RAM) as those described in the IT2221 section.

The IT2235 Tag is capable of displaying a variety of messages on the alphanumeric

LCD with additional signals provided through audible tones and lights. The light,

tone, LCD indications, and a subset of the tag messages are provided in the tables

shown in this section.

The character height of 5 mm (0.2 in) provides ample viewing detail from

approximately 0.9 m (3 ft) or less from the display. To provide sufficient readability in

all light conditions, backlighting is supplied and is activated while a message displays.

The IT2235 Tag has a pushbutton that provides a method of cycling through the

last-sent message and the last-reported patron account balance. The pushbutton is in

compliance with the environmental requirements of the tag. Because the LCD

displays a message when the button is pressed, backlighting will also be activated.

Each push of the button causes the next condition code to display, with a short beep

(100-ms ±10% duration) to confirm key press, until all of the conditions are cycled

through. The balance will then display at the end of all other stored conditions or LCD

messages. This cycle repeats until the tag times out (four seconds) and goes into idle

mode. At a minimum, the balance will be displayed upon button push, and nothing

else cycles on subsequent pushes. At a maximum, eight conditions can be cycled by

subsequent pushes. RF commands always have priority over the display of any LED,

LCD, or audio tones.

The IT2235 Tag has LED-type lights to provide visual alarms and messages in the

form of on/off or flashing signals. Three LEDs will accommodate red, yellow, and

green signals in a variety of sequences (Table 3-3).

System Components

3-23

Table 3-3 Audio/Visual Options Bits Decoding for IT2235 Tag

The IT2235 Tag produces two distinct and discernible audible signals. These signals

are in the form of high and low frequencies referred to as a beep (high frequency) HI,

or a buzz (low frequency) LO. These two different tones are used to generate the

various sequences as requested by the customer.

RF commands always have priority over the display of any LED, LCD, or audio tones.

ATA Tag

In ATA mode, the tags are read-only and do not use a reader-to-tag modulated signal.

When powered, and in the presence of an unmodulated signal, ATA tags always

attempt to backscatter.

Tag Programmer

Tag programmers are used to write data to and read data from tags that are used in an

RFID system.

Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 LED

Sequence Audio

Sequence

00000None None

00001aLong Green

a. Denotes that the LED stays on for 1 second longer than the audio.

HI-HI-HI-HI

00010aLong Red LO-LO-LO-LO

00011aFlash Green LO-HI

00111aLong Red Long LO

01011aLong Yellow HI-LO-HI-LO

01111aFlash Red LO-LO-LO

10011aLong Green HI-HI-HI

10111aFlash Green HI-HI

11011aLong Green Long HI

11101aShort Red LO

11110Short GreenHI

11111bGreen-

Ye llow -R e d

b. Denotes that this sequence is used for testing.

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IT2410 Tag Programmer

The IT2410 Tag Programmer1 is part of a system that is used to program IT2200-

series tags (Figure 3-12). The IT2410 Tag Programmer cannot program ATA tags.The

IT2410 Tag Programmer can be used to select a number of standard formats or

develop a unique, customized format to meet specific application needs.

Figure 3-12 IT2410 Tag Programmer System

Functions

Programmer functions include programming tag data pages, locking fixed data pages,

and interrogating all data pages. Tag data pages can be easily programmed and locked

with a password.

Transferring programmed data to the tag is simple. Once the code is downloaded or

entered into the host, the user issues a command to initiate code transfer to the tag

programmer. The programmer then automatically transfers data to or reads data from

the tag.

1. For complete installation and programming instructions for the tag programmer, refer to

Amtech® document Intellitag IT2000 Programmer User Guide (Document No. 411013).

System Components

3-25

The tag programmer is connected to a PC port that complies with the RS-232

communications interface standard.

Features

The programming head on the top of the programmer provides a mechanical interface

to the tag. The programming head includes a drop-in tag well that is compatible with

the IT2200-series tags. By placing the tag in the tag well on the head, the tag is

correctly positioned to the programmer’s internal antenna. Figure 3-13 illustrates the

tag programming head.

Figure 3-13 Tag Programming Head

The IT2410 Tag Programmer includes a simple interface that is compatible with

computing equipment used in host computers. The link between the programmer and a

patron account workstation is provided by an RS-232 communications port running at

19200 bps. The programmer is designed to read from and write to a tag at distances up

to 5.08 cm (2 in) from the programmer head. The IT2410 Tag Programmer provides a

highly reliable and focused RF pattern for programming only the tag on the

programming head without interacting with any other tags in the area. The RF

transmission of the programmer is active only during the read/write operation.

All control and monitor accessories are easily available to the user from the outside of

the programmer.

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As shown in Figure 3-13, all indicators are located on the top face of the programmer.

The functional indicators of the tag programmer are listed in Table 3-4.

Table 3-4 IT2410 Tag Programmer Indicator LEDs and Descriptions

The tag programmer also has the following features:

•FCC compliant—The programmer has been tested and found to comply with the

limits established by the FCC for a Class A computing device.

•AC power—The programmer is powered from a standard 120 VAC outlet. A UL-

approved 12 VDC power module is included.

Indicator LED Description

PROGRAM

(GREEN) The tag is being programmed with user-specified data.

VERIFY

(GREEN) The tag programmer has read valid data from the specified tag

frame.

ERROR (RED) The tag programmer has detected an error in the programming

or verifying process or during other operations.

POWER

(GREEN) Power is being supplied to the tag programmer.

READY

(GREEN) The tag programmer is ready to accept commands from the

PC.

Installing the IT2200 Reader System

4-3

Chapter 4

Installing the IT2200 Reader System

This chapter includes information on:

Assessing the Site — Instructions for conducting an RF survey of the

chosen site and formulating a frequency plan.

Preparing the Site — Checklist of tasks involved in preparing a site for

installation.

Installing the System — Checklist of required components and a

checklist of installation tasks. Description of where to mount the reader

system components for several typical site configurations. Step-by-step

instructions for installing the system.

Assessing the Site and Formulating a Frequency Plan

Perform an RF site survey to check for RF noise sources near the toll plaza or toll lane

being installed. Use a spectrum analyzer and a horizontally polarized whip antenna.

(TransCore recommends a Agilent Technologies Model 8523 spectrum analyzer.)

•Set up the test equipment under the plaza canopy, if possible, or within a 15m (50-

ft) radius of the plaza.

•Record any frequencies operating in the 902 to 904 MHz or the 909.75 to 921.75

MHz bands.

•If you find frequencies within these bands, check the power level. Power levels

exceeding -10dBm could possibly alter the consideration of installing the system

at this site or the frequency plan for the system. Consult with Amtech® if you

encounter this problem.

Formulate a frequency plan for the plaza. There are two frequencies for each reader:

downlink (reader-to-tag communication) and uplink (tag-to-reader response). For this

system, all readers share the same downlink frequency, which is generally set to

918.75 MHz. Uplink frequencies should alternate between adjacent lanes. For exam-

ple, a four-lane plaza would have the frequencies shown in Table 4-1.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

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Table 4-1 Example Frequency Plan for Four-Lane Plaza

Site Preparation Checklist

Prepare the site according to the design parameters determined by your system inte-

grator. Some of the tasks you should complete, depending on the individual site, are

Components Checklist

Ensure you have the following components available for each lane to be installed:

Lane Downlink Frequency Uplink Frequency

1 918.75 MHz 903.00 MHz

2 918.75 MHz 912.00 MHz

3 918.75 MHz 903.00 MHz

4 918.75 MHz 912.00 MHz

Acquire a construction license.

Acquire an FCC license.

Acquire an environmental assessment permit.

Ensure that you have assembled all the lights, buzzers, and vehicle detectors

that will interface with the system.

Ensure that you have software that allows a PC or laptop to interface with the

reader firmware.

Pull communications, coaxial, and power cables through outdoor-grade conduit.

Ensure that construction work required for mounting the equipment is completed.

Ensure that 120 V AC service is available.

IT2020 Reader Logic Card

One or two AA3152 or AA3153 antennas (depending on whether the installation

is monostatic or bistatic, and plaza type)

IT2502 Check Tag Antenna

IT2611 RF Module

One or two RF-grade coaxial cables with Type N connectors to link the

antennas to the RF module (depending on whether installation is monostatic or

bistatic)

Tag data/control cable (data cable) to link the RF module to the reader logic

card. The cable must have a DB-25 plug connector and a 26-pin circular socket

connector (Souriau 851-06RJ16-26S50 or equivalent).

Installing the IT2200 Reader System

4-5

Task Checklist

This checklist summarizes the installation procedure. Instructions for each task are

provided in the “Installing the IT2200 Reader System” section later in this chapter.

After installing a reader system in each lane, it is necessary to tune each lane as

described in Chapter 5, “Tuning the Lane.”

Where to Mount the Components

The location for mounting the components is designated in the site installation plan.

Most Electronic Toll Collection (ETC) site layouts are similar. Four typical mounts

are the canopy, overhead gantry, overpass, and cantilever arm mounts. A fifth config-

uration is the laneside or pillbox antenna mount.

Test data cable for proper continuity and isolation.

Install reader logic card in host computer. Connect data cable to reader logic

card.

Mount RF module. Connect either 19 to 28 VAC or 16 to 28 VDC power to RF

module. Verify voltage with RF module powered (loaded voltage measurement).

Proper voltage is 19 to 28 VAC or 16 to 28 VDC.

Connect data cable to RF module.

Mount transmit and receive antennas (bistatic installation) or transmit/receive

antenna (monostatic installation), and check tag antennas. Connect antenna(s)

to RF module.

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Canopy Mount

The canopy mount is typically used for covered toll plazas. The reader logic card is

installed in the host computer. The RF module, Universal Toll Antenna(s) (UTA), and

check tag antenna are attached to a 5.0 to 7.6cm (2- to 3-in) pipe that is supported

from the plaza canopy. The pipe is located approximately 4.5 to 5.5 m (15 to 18 ft)

above the road surface and 1.8 m (6 ft) downstream of the collection point. The collec-

tion point is the centerline of the toll booth door, coin basket, or light curtain, depend-

ing on the site configuration. Figure 4-1 illustrates a typical canopy mount.

Figure 4-1 Canopy Mount

Installing the IT2200 Reader System

4-7

Overhead Gantry Mount

In the overhead gantry mount, the reader logic card is installed in the host computer,

and the RF module, UTA(s), and check tag antenna are attached to a 5.0- to 7.6-cm (2-

to 3-in) pipe that is supported from a gantry that spans the lanes. These components

are mounted approximately 4.5 to 5.5 m (15 to 18 ft) above the road surface.

Figure 4-2 illustrates a typical overhead gantry mount.

Figure 4-2 Overhead Gantry Mount

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

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Overpass Mount

In the overpass mount, the reader logic card is installed in the host computer, and the

RF module, UTA(s), and check tag antenna are attached to a 5.0 to 7.6cm (2- to 3-in)

pipe that is supported from an overpass. These components are mounted approxi-

mately 4.5 to 5.5 m (15 to 18 ft) above the road surface.

Figure 4-3 Overpass Mount

Installing the IT2200 Reader System

4-9

Cantilever Arm Mount

In the cantilever arm mount, the reader logic card is installed in the host computer, and

the RF module, UTA(s), and check tag antenna are attached to a 5.0 to 7.6cm (2- to 3-

in) pipe at the end of the cantilever arm. These components are mounted approxi-

mately 4.5 to 5.5 m (15 to 18 ft) above the road surface. Figure 4-4 illustrates a typical

bistatic laneside cantilever arm mount with two antennas.

Figure 4-4 Cantilever Arm Mount (Bistatic Configuration)

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

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Figure 4-5 illustrates a typical monostatic laneside cantilever arm mount with one

antenna.

Figure 4-5 Cantilever Arm Mount (Monostatic Configuration)

Installing the IT2200 Reader System

4-11

Laneside “Pillbox” Mount

The laneside mount is typically used with the AA3153 Beacon Antenna for pillbox

installations. The reader logic card is installed in the host computer. For bistatic con-

figuration, the receive antenna is mounted on a horizontal section of 5.0 to 7.6cm (2-

to 3-in) wide by 56-cm (22 in) long horizontal pipe mounted 3m (10 ft) above the

ground on a vertical pole. The transmit antenna is mounted to a horizontal section of

76cm (30-in) long pipe that is 69 cm (27 in) below the upper pipe. The check tag

antenna is mounted next to the transmit antenna. The RF module can be mounted next

to the antennas or in a sheltered location nearby. Figure 4-6 illustrates a typical bistatic

laneside mount.

Figure 4-6 Bistatic Laneside Mount

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

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For monostatic configuration, the transmit/receive antenna is mounted on a horizontal

section of 5.0 to 7.6cm (2- to 3-in) wide by 56cm (22-in) long horizontal pipe

mounted 3m (10 ft) above the ground on a vertical pole. The check tag antenna is

mounted next to the transmit/receive antenna. The RF module can be mounted next to

the antenna or in a sheltered location nearby. Figure 4-6 illustrates a typical mono-

static laneside mount.

Figure 4-7 Monostatic Laneside Mount

The exact placement of the antenna for a pillbox installation depends on the site con-

figuration. The placement is the same for both bistatic and monostatic configurations.

Figure 4-8 shows the antenna placement for a typical pillbox installation.

Installing the IT2200 Reader System

4-13

Figure 4-8 Antenna Placement for Pillbox Mount

Installing the IT2200 Reader System

This section contains instructions for installing each component of the reader system.

In addition to standard tools, you need the following equipment to install the system:

•Wrist strap for electrostatic discharge (ESD) protection

•Hydraulic lift

•Torque wrench

•Inclinometer

•Multimeter, Fluke 87 or equivalent

•Loopback connector for testing data cable. Use a DB-25 connector to make the

loopback connector. Short the pins listed in Table 4-2. Refer to Table D-13,

“LEDs,” on page 18 in Appendix D to this manual for a complete listing of

IT2611 RF Module-to-IT2020 Reader Logic Card interface connector pin-outs.

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Table 4-2 Listing of Shorted Pins for Loopback Connector

Installing the IT2020 Reader Logic Card

This section describes the installation of the IT2020 Reader Logic Card in a host com-

puter or lane controller. Details of installation may vary slightly depending on the site

configuration.

Caution

Wear a wrist strap when handling and installing the reader logic card. Failure to do

so can result in ESD damage to the card.

Figure 4-9 shows a reader logic card installed in a typical host computer or lane con-

troller chassis. Because of its daughterboard and two connector panels, the reader

logic card occupies two slots. One ISA slot provides power and communications

through the card’s edge connector and provides access to the frequency mode switch

and RS-232 port on the back of the card. The other slot provides space for the RF

module interface.

Figure 4-9 IT2020 Reader Logic Card Installed in Typical Host Computer or

Lane Controller Chassis (top view)

1 - 15

3 - 14

4 - 18

6 - 17

8 - 22

9 - 20

11 - 25

12 - 23

Installing the IT2200 Reader System

4-15

To install the reader logic card

1. Connect the loopback connector to the data cable, then test the cable for

continuity and isolation.

2. Remove the reader logic card, which is still in its ESD protective bag, from the

shipping box.

3. Put on the protective wrist strap; be sure it is properly grounded.

4. Remove the reader logic card from the ESD protective bag.

5. Verify that dipswitches S2, S3, and S4 are still set to the factory settings shown in

Figure 4-10. Refer to page D-3 in Appendix D to this document for configuration

settings information.

Figure 4-10 IT2020 Reader Logic Card Factory Dipswitch Settings

6. Set the frequency-enable switch (S1) to the left (normal) position as shown in

Figure 4-11.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

4-16

Figure 4-11 Frequency Enable Switch on Rear of IT2020 Reader Logic Card

7. Locate the battery jumper (might be on J8 or be loose in the ESD bag) and install

over both J8 pins (see Figure 4-12).

Figure 4-12 Location of Battery Jumper (J8) in Relation to Battery

8. Turn off the host computer.

9. Insert the reader logic card in an ISA slot in the host computer. Be sure the card’s

edge connector is firmly seated, then secure the card with the retaining screw.

10. Install the reader logic card’s RF interface connector in a slot next to the reader

logic card, then secure the connector with the retaining screw.

11. Do not turn on the host computer until ready to test the system as described in

Chapter 5.

Installing the IT2200 Reader System

4-17

Installing the IT2611 RF Module

The IT2611 RF Module should be mounted on a 5.0 to 7.6cm (2- to 3-in) pipe. A

mounting kit is provided with each RF module that includes:

•RF module

•Two U-bolts

•Two brackets

•Four spacers

•Eight nuts

•Four lock washers

•Shrink tubing

Figure 4-13 shows the correct way to mount the RF module.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

4-18

Figure 4-13 IT2611 RF Module Mounting and Components for Both Monostatic

and Bistatic Configurations

Installing the IT2200 Reader System

4-19

To install the RF module

1. Locate the RF module atop the mounting pipe and insert a U-bolt around the pole

and up through the bracket. Place a spacer over each section of the U-bolt

protruding through the bracket and place a lock washer and nut over each side of

the U-bolt. Repeat for the other U-bolt.

Note: Depending on pole diameter, spacers may or may not be needed.

2. Tighten nuts with torque wrench to 68 N-m (50 ft-lb). Tighten second nut over

first nut to lock it in place.

3. Check that 19 to 28 VAC or 16 to 28 VDC power is available at the module end

of the power cable. Measure the voltage across pins A and C of the power cable

connector.

4. Connect the power cable to the RF module’s power supply plug (Figure 4-14).

5. Connect the data cable to the RF module’s data connector.

Figure 4-14 IT2611 RF Module Connectors (Monostatic RF Module Shown)

Installing the AA3152 UTA

The UTA is mounted on a 5.0 to 7.6cm (2- to 3-in) pipe to accommodate various

angles for lane tuning. Two UTAs are required for each dedicated or mixed-use lane

in a bistatic configuration. One UTA is required for each dedicated or mixed-use lane

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

4-20

in a monostatic configuration. A mounting kit is provided with each antenna that

includes:

•Antenna

•Two U-bolts

•Two brackets

•Four spacers

•Eight nuts

•Four lock washers

•One length of heat-shrink tubing

Figure 4-15 shows the correct way to mount and connect a UTA.

Figure 4-15 AA3152 UTA Mounting and Connections

Note: When installing the UTA use only the mounting hardware provided. Do not use

oversized washers to secure the plastic radome to the bracket. This practice can

weaken the radome material.

Installing the IT2200 Reader System

4-21

To install the UTA

1. Locate the UTA that will be used as the transmit antenna below the mounting

pipe and insert a U-bolt around the pole and down through the bracket on the side

of the antenna closest to the center of the lane. Place a lock washer and nut over

each side of the U-bolt, but do not tighten the nuts. Repeat for the other U-bolt,

but install two of the supplied spacers between the bracket and the antenna to

angle the antenna toward the center of the lane.

2. For bistatic installation, mount the second UTA the same way, but mount it on

the other side of the RF module from the transmit antenna and do not add

spacers.

3. Rotate each antenna up and toward oncoming traffic. Rotate up 15° from

horizontal for a dedicated lane or 10° up for a mixed-use lane. Use an

inclinometer to check the angle.

4. Tighten nuts with torque wrench to 68 N-m (50 ft-lb).

5. Slide the shrink tubing over the coaxial cable, but do not heat it.

6. Connect the coaxial cable to the antenna and to the appropriate connector on the

RF module. Leave the shrink tubing loose until you have finished tuning the lane.

Installing the AA3153 Beacon Antenna

Two beacon antennas are required for each lane in a bistatic configuration. One bea-

con antenna is required for each lane in a monostatic configuration.

A mounting kit is provided with each antenna that includes:

•Antenna

•Two U-bolts

•Two brackets

•Four spacers

•Eight nuts

•Four lock washers

•One length of heat-shrink tubing

Figure 4-16 shows the correct way to mount an AA3153 antenna.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

4-22

Figure 4-16 AA3153 Beacon Antenna Mounting

Note: The location and positioning of the beacon antenna(s) can vary depending

on the site configuration. These instructions provide a starting point that will

work for many typical installations.

To install the beacon antenna

1. Locate the antenna along the mounting pipe and insert a U-bolt around the pole

and through the bracket. Place lock washer and nut over each side of U-bolt.

Repeat for the other U-bolt.

Note: For installations requiring horizontal polarization, mount the beacon antenna

with the Amtech® label horizontal to the horizon. For installations requiring vertical

polarization, rotate the antenna 90° so that the Amtech® label is perpendicular to the

horizon.

Installing the IT2200 Reader System

4-23

2. Rotate the antenna 10° down from vertical. For a pillbox mount, aim the antenna

toward oncoming traffic as shown in Figure 4-8. If there is no pillbox, rotate the

antenna 45° toward oncoming traffic. Use an inclinometer to check the angle.

3. Tighten nuts with torque wrench to 68 N-m (50 ft-lb) to prevent slippage.

Tighten second nut over first nut to lock it in place.

4. Slide the shrink tubing over the coaxial cable, but do not heat it.

5. Connect the coaxial cable to the antenna and to the appropriate connector on the

RF module. Leave the shrink tubing loose until you have finished tuning the lane.

Installing the IT2502 Check Tag Antenna with a

UTA

For bistatic configuration, install the check tag antenna on the mounting pipe between

the transmit and receive antennas. For monostatic configuration, install the check tag

antenna on the mounting pipe next to the transmit/receive antenna. Figure 4-17 shows

the correct way to mount a check tag antenna.

Figure 4-17 IT2502 Check Tag Antenna Mounting

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

4-24

To install the check tag antenna

1. Locate the check tag antenna along the mounting pipe and insert a U-bolt around

the pole and through the bracket. Place lock washer and nut over each side of U-

bolt. Repeat for the other U-bolt.

2. For bistatic configuration, adjust the check tag antenna so it is about 2.5 cm (1 in)

from and centered on the transmit antenna. It should extend across about one

third of the transmit antenna’s width.

3. For monostatic configuration, adjust the check tag antenna so it is about 2.5 cm

(1 in) from and centered on the transmit/receive antenna. It should extend across

about one third of the transmit/receive antenna’s width.

4. Tighten the nuts with a torque wrench to 68 N-m (50 ft-lb). Tighten a second nut

over the first nut to lock it in place.

5. Slide the shrink tubing over the check tag antenna cable, but do not heat it. Leave

the shrink tubing loose until you have finished tuning the lane.

6. Connect the cable to the check tag antenna connector on the RF module. See

Figure 4-14 for the location of the RF module connectors.

Installing the IT2502 Check Tag Antenna with a

Beacon Antenna

Install the check tag antenna on the same mounting pipe as the transmit antenna

(bistatic configuration) and transmit/receive antenna (monostatic configuration). Fig-

ure 4-17 shows the correct way to mount a check tag antenna.

To install the check tag antenna

1. Locate the check tag antenna along the mounting pipe and insert a U-bolt around

the pole and through the bracket. Place lock washer and nut over each side of U-

bolt. Repeat for the other U-bolt.

2. For bistatic configuration, adjust the check tag antenna so it is about 2.5 cm (1 in)

from the transmit antenna and extends across about one third of the transmit

antenna’s width.

3. For monostatic configuration, adjust the check tag antenna so it is about 2.5 cm

(1 in) from the transmit/receive antenna and extends across about one third of the

transmit/receive antenna’s width.

4. Tighten nuts with torque wrench to 68 N-m (50 ft-lb) to prevent slippage.

Tighten second nut over first nut to lock it in place.

5. Slide the shrink tubing over the check tag antenna cable, but do not heat it. Leave

the shrink tubing loose until you have finished tuning the lane.

6. Connect the cable to the check tag antenna connector on the RF module. See

Figure 4-14 for the location of the RF module connectors.

Tuning the Lane

5-3

Chapter 5

Tuning the Lane

This chapter provides instructions for tuning the lane for optimum

performance and for verifying that the installed IT2200 Reader System is

functioning correctly.

Why You Need to Tune a Lane

You tune a lane to:

•Test the installed reader system

•Adjust the read/write zone footprint to guarantee reliable tag performance and

proper transaction framing

•Minimize the RF power output to decrease interference with adjacent lanes

The read/write zone is adjusted by changing the antenna position, antenna mounting

angle, and uplink and downlink RF power. The nominal antenna angle is 15° up from

horizontal in a dedicated lane and 10° up in a mixed-use lane.

Note: TransCore recommends that two people accomplish this procedure.

Warning

Switch off RF power before working on antennas.

The following procedure assumes that the equipment to be tested and commissioned

has been properly installed and that host computer power is available.

This lane tuning procedure tests the following equipment:

•IT2611 RF Module

•AA3152 or AA3153 antennas

•IT2502 Check Tag Antenna

•IT2020 Reader Logic Card

•Reader-to-RF module tag data/control cable (data cable)

•RF module power supply

•RF module power supply cable

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

5-4

Required Equipment

You need the following equipment to complete the tuning procedure:

•One IT2221 and one IT2235 tag to use as baseline tags for testing all lanes

•One ATA-type tag to use as a baseline tag for testing multimode lanes

Note: The ATA-type tag is required only if you are tuning a multimode lane.

•Plastic or wood stick. (A plastic kitchen spatula works well.)

•Rubber bands or hook-and-loop fastener to mount tag to stick

•Tape measure and masking tape

•Test computer (PC or lunch box type) with version 1.03 of the IT2200 engineering

host software (P/N 11254-00) and an available ISA slot for installing a reader

logic card

•Diskette with custom autonomous mode (CAM) files

•Data cable to use as an extension cable to the installed data cable. Use a 2m (6-ft)

DB-25, fully wired, plug and socket end cable

•One pair of walkie talkie radios, preferably UHF band

•Multimeter, Fluke 87 or equivalent

•Vehicle. Use a car or truck for interior tags or a truck for exterior tags

•Commercial grade heat gun

•Protective electrostatic device bag

Optional Equipment

TransCore manufactures diagnostic tools that you can use to check the reader system

functions.

•Breakout Box for the IT2020 Reader Logic Card. The breakout box is used to

access IT2020-series Reader Logic Card internal signals for analysis, and uses

light-emitting diodes (LEDs) to display various software signals. In addition, the

breakout box can set the RF signal modulation high.

•External Modulation Box for the IT2611 RF Module. The mod box is used to con-

trol radio frequency (RF) modulation and measure maximum downlink power and

depth of modulation using diagnostic equipment.

•Beeper Box for the IT2200 Reader System. The beeper box is used to verify tag

reads when diagnosing a reader system. The beeper box has internal audio/visual

indicators and can also power remote light or audible buzzer for lane-side tag test-

ing.

Tuning the Lane

5-5

Tuning the Lane

If you have installed multimode lanes (those using IT2200-series and

ATA-type tags), then you must follow all of the directions outlined in this

lane tuning section. If you have installed single-mode lanes (IT2200-

series tags only), you can ignore the ATA tag testing instructions.

This section provides instructions for installing and starting the IT2200 engineering

host software diagnostic tool to check the reader system status.

Starting the Engineering Host

To run the engineering host

1. Disconnect the data cable from the reader logic card in the host computer.

2. Remove the reader logic card from the host computer and install it in the test

computer.

3. Connect the data cable to the extension data cable, then connect the extension

data cable to the reader logic card in the test computer.

4. Start the test computer, then double-click the Host icon to start the host software.

Upon startup, the Background status information screen displays (see Figure

5-1).

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

5-6

Figure 5-1 Background Status Information Screen

If the system is operating correctly, all Passed blocks on the diagnostics page are

checked. Figure 5-1 shows a failure of the RF Data EEPROM, RF PLL Lock, and

RF Serial Link tests. Any condition that results in a Fail status must be corrected

before the testing proceeds. See Chapter Chapter 6, “Troubleshooting the

Installation,” for corrective actions.

5. Click Cancel to clear the Background status information screen.

Lane Tag Test

This procedure determines the correct RF attenuation settings for the installed reader

system.

If more than one lane is to be tuned, the other lanes should be operating to obtain valid

attenuation parameters. This might not be practical for the initial tuning, but final tun-

ing must be performed with all lanes operating. For untuned lanes, set the attenuation

to 9dB uplink and downlink. When these lanes are finally tuned, if their attenuation

settings differ by more than 2dB from the selected 9dB, some repeat tuning might be

necessary in other lanes.

Tuning the Lane

5-7

1. From the Reader menu, select RF Attenuation. When the RF Attenuation

Parameters screen appears, set the downlink and uplink attenuation to 0, then

click Apply.

2. From the Options menu, select Diagnostics, then Attenuation Statistics. When

the Attenuation Statistics Control screen appears, click Read Frame #07, All

Tags, then click Run.

3. After about two minutes, a table of results displays (see Figure 5-2 for sample

results). Save the table using screen capture (press Alt-Print Scrn), paste it into a

word processing program such as Microsoft Word, and assign it a title.

An attenuation response count of 9 or 10 is ideal. A count of 5 at 14dB uplink and

downlink attenuation is acceptable.

If the count at 14dB uplink and downlink attenuation is less than 5, or if the count

at 15dB uplink and downlink attenuation is 0, go to Chapter Chapter 6,

“Troubleshooting the Installation.”

Figure 5-2 Sample RF Attenuation Statistics for Check Tag

4. From the Reader menu, select Check Tag Control. When the Check Tag

Control screen appears, select Check Tag Disabled, then click Apply.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

5-8

5. Mount an IT2221 or IT2235 tag on the inside of the vehicle’s windshield. The tag

must be at least 5 cm (2 in) from the windshield frame or rear view mirror post,

and it must be below the tint line at the top of the windshield.

6. Park the vehicle with the tag exactly 3 m (10 ft) upstream of the antenna.

7. Run the attenuation statistics program (see Step 1 of this instructions section).

Save and label the tables.

8. Compare the attenuation statistics to those shown in Figure 5-3 and Figure 5-4.

Figure 5-3 shows an example of acceptable results. Notice that the screen shows

attenuation response counts of 9 or 10 at almost all attenuation settings. Figure 5-

4 shows attenuation response counts that range from acceptable to marginal to

unacceptable. If your results look like these, choose attenuation settings in the

acceptable range.

If the results are unacceptable, move the vehicle upstream 15 to 30 cm (6 to 12 in)

and repeat attenuation statistics. Then move the vehicle downstream of the

original position 15 to 30 cm (6 to 12 in) and repeat attenuation statistics. If

moving the vehicle results in a good report, the vehicle was in a small hole or poor

read area as a result of a standing wave pattern, and you can proceed with the

tuning.

If you are unable to achieve good attenuation statistics by moving the vehicle, go

to Chapter Chapter 6, “Troubleshooting the Installation.”

Figure 5-3 Acceptable RF Attenuation Statistics

Tuning the Lane

5-9

Figure 5-4 Ranges of RF Attenuation Statistics

9. Select a pair of attenuation settings that give acceptable attenuation response

counts. (Do not use 15dB attenuation.) Attenuation settings close to 8dB

downlink and 12dB uplink are typical in many installations. In Figure 5-3,

settings of 13dB downlink and 7dB uplink are an acceptable choice.

Check Tag Test

The check tag works best if the check tag antenna whip is placed directly in front of

the active elements of the transmit antenna. If a UTA or beacon antenna is used for the

transmit antenna, the patches on the antenna lie directly down the center of the

radome, equidistant from the long edges. If the check tag antenna is mounted on the

same rail as the transmit antenna, the check tag antenna should be rotated down so that

the whip is directly in front of the center of the transmit antenna radome. This is a

good approximation for the check tag antenna placement. Ensure that the uplink and

downlink RF power levels are set at the lane tuning levels previously set in the Lane

Tag Test.

IT2000 Check Tag Test

This test verifies that the IT2000 check tag and check tag antenna are working cor-

rectly.

Acceptable RF

Attenuation

Settings

Marginal RF

Attenuation

Settings

Unacceptable

RF Attenuation

Settings

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

5-10

1. Remove any tag from the read/write zone.

2. From the Reader menu, select Check Tag Control. When the Check Tag

Control screen appears, select IT-2000 Check Tag Enabled, then click Apply.

3. From the Reader menu, select RF Attenuation. When the RF Attenuation

Parameters screen appears, set the downlink and uplink attenuation to 6, then

click Apply.

4. From the Tag Requests menu, select Read. When the Read Request screen

appears, set Execution Mode to Continuous.

5. Click Run. Click the Raw Responses tab, if necessary. The tag read counter

should increment fast and steady, and the tag serial number should be

0xFFFFFFFE, the check tag signature as shown in Figure 5-5.

Figure 5-5 Sample Continuous Check Tag Read Request Display

6. In Execution Mode, select Continuous.

7. Rotate the check tag antenna to find the high-angle and low-angle points where

the check tag begins to get continuous reads. Note the high- and low-angle

positions of the check tag antenna.

If the check tag test fails, check that the check tag antenna is correctly positioned and

connected. If it is, replace the check tag antenna. See "Check Tag Antenna" on page

6-19.

Check Tag

Signature

Tuning the Lane

5-11

ATA Check Tag Test

Follow the steps outlined in the previous procedure for the IT2000 Check Tag Test.

The only exceptions are in Steps 2 and 6. In Step 2 you will select ATA Check Tag

Enabled instead of IT-2000 Check Tag Enabled. In Step 6 you will select the ATA

Tag Read Request screen instead of the Read Request screen, then in Execution

Mode, select Continuous.

If the check tag test fails, check that the check tag antenna is correctly positioned and

connected. If it is, replace the check tag antenna. See "Check Tag Antenna" on page 6-

19.

The optimum orientation for the antenna will be at a mounting angle that is located

within both solid read zones previously established for the IT2000 and ATA lane test

reads.

Testing the Footprint

Test the footprint using the custom autonomous mode (CAM) file. The CAM file

causes an IT2235 Tag to beep when the host successfully interacts with it. Access the

engineering host Background Status Information screen display.

Running the CAM Test for IT2200-Series Tags

1. Insert diskette with the Map4.cam files into the host computer’s floppy

diskette drive and copy the files to host. Remove the diskette from the

computer drive.

2. From the Reader menu, select Download CAM File.

3. Select the Map4.cam file. When the Map4.cam file has been successfully

downloaded, an information box appears indicating that the CAM file is

loaded into the reader logic card. Click OK to exit this screen.

4. From the Reader menu, select Cam Sequencing. From the Cam Sequencing

screen, select Non-Virtual Sequence. This command sets the host-reader

interface for this series of tests.

5. From the Reader menu, select Tag Command Mode. From the Tag

Command Mode screen, select Process Autonomous Commands. From the

Process Autonomous Commands screen, select Disable Response Display,

then click Run. This operating mode causes the IT2235 Tag to beep after

every read/write transaction. An IT2235 Tag should beep several times each

second.

Note: An IT2235 Tag produces two audible tones: a lower pitch tone indicating

a tag read and a higher pitch tone indicating a tag write.For this phase of lane

testing, only listen for the lower pitched tone.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

5-12

Tag-on-a-Stick Test for IT2235 Tag

1. Mount the IT2235 Tag on the stick or rubber or plastic spatula using Velcro or a

rubber band.

2. Hold the tag on the stick with the long side horizontal.

3. Move the tag around the desired read/write zone, and note where the tag

beeps.

The read/write area is roughly an oval, or egg, shape. The zone should extend

from about 3 m (10 ft) ahead of the antenna to 0.9 m (3 ft) past the antenna (see

Figure 5-6). Near the center of the pattern, the read/write zone should extend

from one side of the lane to the other. This pattern width is necessary to read

motorcycles at the extreme edges of the lane. If the actual pattern is shorter or

narrower than desired, decrease both uplink and downlink attenuation 1dB and

repeat the pattern mapping. If it is larger than desired, increase the attenuation

1dB. Pattern mapping with a tag on a stick only gives a representation of the

actual pattern. The pattern probably will be different with the tag in a car. Also,

some “holes” in the pattern are unavoidable. As a general rule, if a hole or holes

does not occupy more than 10 percent of the total pattern, it is a good pattern.

Figure 5-6 Typical Read/Write Zone for a Reader (Bistatic Configuration)

Tuning the Lane

5-13

Running the CAM Test for ATA-Type Tags

1. From the Main menu, select Options, then Sound. Click On.

2. From the Main menu, select Tag Requests. Select ATA Read. This operating

mode causes the ATA tag to cause the host PC to emit an audible click after

every read transaction.

3. From the ATA Tag Read Request screen, then in Execution Mode select

Continuous.

4. Leave all other setting at defaults. Select Run.

The IT2200 system is ready to read only single-mode or multimode ATA-type

tags.

Tag-on-a-Stick Test Using ATA-Type Tag

Note: TransCore recommends that two people accomplish this procedure. If only one

person is available, you can use the Beeper Box for the IT2200 Reader System (see

product description in “Optional Equipment” on page 5-4 for more information).

1. Replace the IT2235 Tag with an ATA-type tag. Place the IT2235 Tag in an ESD

bag.

2. Mount the ATA-type tag on the stick or rubber or plastic spatula using Velcro or a

rubber band.

3. Hold the tag on the stick with the long side horizontal.

4. Move the tag around the desired read/write zone, and watch the engineering

host screen for a tag read indication (tag ID appears on the screen) and listen

for an audible click from the host PC when the ATA tag is read.

Vehicle-Mounted Tag Test Using IT2235 Tag

Note: For the vehicle mounted tag test, you must mark the tag, not vehicle, location at

the point where the tag starts and stops beeping.

1. Mount an IT2235 Tag on the inside of the vehicle’s windshield. The tag must be

at least 5 cm (2 in) from the windshield frame or rear view mirror post, and it

must be below the tint line at the top of the windshield.

2. Drive the car at a speed of about 8 to 16 km/h (5 to 10 mph) through the center

of the lane.

3. Use a piece of masking tape on the road or curb to mark the location in the

lane where the tag starts to beep.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

5-14

4. Continue driving the car through the lane until the tag stops beeping.

5. Mark the location where the tag stops beeping.

6. Repeat this process of driving slowly through the pattern first along the left

and then along the right curbs.

7. Mark the pattern start and stop locations.

8. Measure the start and stop points.

All measurements are made with respect to the antenna-mounting pipe. In a toll

lane, the light curtain is usually centered between the treadles 1.8 m (6 ft)

upstream of the antenna. Measurements can be made from the light curtain but,

when recording the distances, add or subtract the 1.8 m (6 ft) as appropriate so

that the dimensions represent the distance to the antenna. Distance

measurements past the antenna are recorded as negative numbers. An ideal

pattern in the center of the lane is 3 m (10 ft) before the antenna to 0.9 m (3 ft)

past the antenna, or +3 m to -0.9 m (+10 ft to -3 ft). These distances can vary

by ±0.3 m (1 ft) and still be acceptable. With the car driving along the sides of

the lane, the pattern can be up to 0.6 m (2 ft) shorter overall.

If the pattern is larger or smaller than optimum, increase or decrease the

attenuation in 1dB steps until the optimum pattern is obtained.

Vehicle-Mounted Tag Test Using ATA-Type Tag

Note: For the vehicle mounted tag test, you must mark the tag, not vehicle, location at

the point where the tag starts and stops reading (indicated by audible clicks on host

PC or beeper box).

1. Replace the IT2235 Tag with an ATA-type tag. Place the IT2235 Tag in an ESD

bag.

2. Mount an ATA-type tag on the inside of the vehicle’s windshield. The tag must be

at least 5 cm (2 in) from the windshield frame or rear view mirror post, and it

must be below the tint line at the top of the windshield.

3. Drive the car at a speed of about 8 to 16 km/h (5 to 10 mph) through the center

of the lane.

4. Use a piece of masking tape on the road or curb to mark the location in the

lane where the tag starts to beep.

Note: For Step 5, you must either enable sound on the host PC or use a beeper box to

hear the audible clicks when the ATA tag is read.

5. Continue driving the car through the lane until the host PC or beeper box

stops clicking, indicating the end of the read zone.

Tuning the Lane

5-15

6. Mark the location where the tag stops beeping. Ensure that you mark the tag,

not vehicle, location.

7. Repeat this process of driving slowly through the pattern first along the left

and then along the right curbs.

8. Measure the ATA tag footprint.

Pay close attention to the point of the first read. You may find that the first read

point for the ATA tag differs from the first read point of the IT2235 Tag. If this

difference is undesirable, you can adjust the ATA tag range independent of the

IT2235 Tag read range by changing the uplink attenuation. ATA tags respond to

uplink RF power only; the IT2235 Tag response is relatively independent of

uplink power.

To increase the ATA footprint, increase the uplink power. To decrease the ATA

footprint, decrease the uplink power.

Once the ATA and IT2235 footprints have been matched to a satisfactory degree,

recheck the IT2235 Tag footprint to ensure that the ATA adjustments have not

adversely affected the IT2235 footprint.

Dynamic Performance Test

This test evaluates the host computer performance for continuous reads of a tag in the

field.

Starting the Dynamic Performance Test

1. From the Reader menu, select Download CAM File. Select the

HDSKS.cam file. When the HDSKS.cam file has been successfully

downloaded, an information box appears indicating that the CAM file is

loaded into the reader logic card. Click OK to exit this screen.

2. From the Reader menu, select CAM Sequencing. When the CAM

Sequencing screen appears, select Non-Virtual Sequence. This command

initiates the host-reader interaction for this type of CAM file.

3. From the Reader menu, select Tag Command Mode. When the Tag

Command Mode screen appears, select Process Autonomous Commands.

When the Process Autonomous Commands screen appears, select Disable

Response Display, then click Run.

The CAM file issues continuous reads to any tag in the field, and the host

software counts the transactions. This is a very useful index of dynamic lane

performance.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

5-16

IT2235 Dynamic Performance Drive-Through Tag

Test

1. Mount an IT2235 Tag on the inside of the vehicle’s windshield. The tag must be

at least 5 cm (2 in) from the windshield frame or rear view mirror post, and it

must be below the tint line at the top of the windshield. Drive the vehicle through

the center of the lane at 48 km/h (30 mph).

2. Toggle Run/Pause on the host computer to clear the counter.

3. If a message appears signifying a buffer overflow, the total number of

handshakes is too high for the host to process. To continue this test, drive

faster through the lane to reduce the handshake count.

4. Drive the vehicle through the lane three times. The handshake count should be

between 65 and 100 for each run.

IT2221 Dynamic Performance Drive-Through Tag

Test

1. Replace the IT2235 Tag with an IT2221 Tag and repeat Step 3 of “Starting the

Dynamic Performance Test” on page 5-15.

Note: Remove the IT2235 Tag from the vehicle or place it in a sealed protective

electrostatic device bag.

2. Drive the vehicle through the lane three times at 48 km/h (30 mph). The

handshake count should be between 65 and 100 for each run.

3. Close the host software.

4. Connect the data cable to the reader logic card in the host computer. Tighten the

connector and ensure that the cable’s ground wire is securely grounded to the

host computer enclosure.

5. Switch on the host computer. It should initiate automatically. In 30 to 45 seconds,

the three LEDs (Transmit Active, Uplink Source On, and Downlink Source On)

farthest from the bracket on the reader logic card should light (see Figure 5-7). If

the Self-test Fail LED lights, go to Chapter Chapter 6, “Troubleshooting the

Installation.”

Tuning the Lane

5-17

Figure 5-7 Location of LEDs on Reader Logic Card

If the lane performs to the stated standards, tuning is complete. If not, perform trouble-

shooting procedures listed in Chapter Chapter 6, “Troubleshooting the Installation” of

the IT2200 Reader System Installation & Maintenance/Service Guide.

ATA Tag Dynamic Performance Drive-Through Tag

Test

1. Replace the IT2221 Tag with an ATA-type Tag.

Note: Remove the IT2221 Tag from the vehicle or place it in a sealed protective

electrostatic device bag.

2. From the Reader menu, select Download CAM File. Select the

HDSKS_ATA.cam file. When the HDSKS_ATA.cam file has been successfully

downloaded, an information box appears indicating that the CAM file is loaded

into the reader logic card. Click OK to exit this screen.

3. From the Reader menu, select CAM Sequencing. When the CAM

Sequencing screen appears, select Non-Virtual Sequence. This command

initiates the host-reader interaction for this type of CAM file.

4. From the Reader menu, select Tag Command Mode. When the Tag

Command Mode screen appears, select Process Autonomous Commands.

When the Process Autonomous Commands screen appears, select Disable

Response Display, then click Run.

5. Toggle Run/Pause on the host computer to clear the counter.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

5-18

6. If a message appears signifying a buffer overflow, the total number of

handshakes is too high for the host to process. To continue this test, drive

faster through the lane to reduce the handshake count.

7. Drive the vehicle through the lane three times. The handshake count should be

significantly lower than the number obtained with the IT2200-series tags. A

good handshake count for an ATA tag tested at 40 km/h (25 mph) is

approximately 12 handshakes. Handshake counts of 7 to 8 are acceptable

when targeting an 80 km/h (50 mph) application.

Adjusting the Read/Write Zone

The read/write zone is adjusted by changing the antenna position, antenna mounting

angle, and uplink and downlink RF power. The nominal antenna angle is 15° up from

horizontal in a dedicated lane and 10° up in a mixed-use lane.

ATA-type tags are unaffected by downlink power. The read range for ATA tags can be

adjusted by increasing or decreasing uplink power levels, or by adjusting antenna

uptilt angles.

IT2200-series tags are relatively insensitive to uplink power changes. You need uplink

power to communicate with IT2200-series tags, but you can set uplink power at mid-

dle to low power levels with little effect on performance. However, downlink power

significantly affects the read/write zone for IT2200-series tags. Antenna uptilt angle

and placement are also important in determining the read zone length for IT2200-

series tags.

Completing Antenna Connections

When all tests and connections are completed, shrink the tubing by using a commer-

cial heat gun at the connections between the antennas and the coaxial cables to water-

proof the connections.

Troubleshooting the Installation

6-3

Chapter 6

Troubleshooting the Installation

This chapter provides information on cross-lane interference and

troubleshooting instructions for use when installing and testing the

IT2200 Reader System with Multimode Capability.

Required Equipment

You need the following equipment to complete the tuning procedure:

•Hydraulic lift

•Test computer (PC or lunch box type) with the IT2200 Engineering Host #11254-

00 software, Version 1.03 installed and an available ISA slot for installing a

reader logic card

•Data cable to use as an extension cable to the installed data cable. Use a 2m (6-ft)

DB-25, fully wired, plug and socket end cable.

•One pair of walkie talkie radios, preferably UHF band

•Multimeter, Fluke 87 or equivalent

•Vehicle. Use a car or truck for interior tags or a truck for exterior tags.

•Commercial grade heat gun

Cross-Lane Interference in RFID Systems

As discussed in “Noise and Interference Immunity” on page 2-10, RFID systems are

subject to various types of interference that can affect the level of communications

between a tag and reader system. Another type of interference that can result from the

operation of the reader system is called cross-lane interference.

What Is Cross-Lane Interference?

Cross-lane interference occurs when the RF generated in one toll lane interrupts the

RFID operation in another lane thereby causing the affected lane to perform poorly.

Before diagnosing cross-lane interference, it is necessary to understand what consti-

tutes a satisfactorily performing lane.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

6-4

Determining Acceptable Lane Performance

The criteria for optimal lane performance are usually set by the customer and can vary

according to the site requirements. In testing, acceptable lane operation criteria typi-

cally are determined by the length of the RF footprint and the speed of the test vehicle.

Usually, a test vehicle’s speed is limited by the amount of the toll lane that can be used

for starting and stopping distances. Usually, testing speed is limited to 32 kph (20

mph) or less.

An ideally performing toll lane will produce one handshake for every 4 ms of transac-

tion time. At 32 kph (20 mph), the vehicle is using 34 ms to travel through 0.3 m (1.0

ft) of the footprint. If the footprint is 2.4 m (8 ft), this means that the vehicle will

spend approximately 272 ms in the footprint. Based on a vehicle speed of 32 kph (20

mph) and an 2.4m (8-ft) footprint, this yields an ideal maximum number of 68 hand-

shakes. Nulls and voids within the RF footprint will lower this number, as will any

other local sources of RF noise and stray reflections. A rule of thumb for lane perfor-

mance is to have 40 to 60 handshakes within an 2.4m (8-ft) footprint with a test vehi-

cle traveling at 32 kph (20 mph). A system that operates with less than 40 handshakes

should be tested for cross-lane interference.

Identifying Cross-Lane Interference

Cross-lane interference is identified by an area in the RF read zone, or footprint,

which has areas where a tag cannot be read. If a toll lane has been operating satisfacto-

rily and then begins to show a degradation in system performance, that is, an increas-

ing number of missed reads or a spotty read pattern, there is a probability that cross-

lane interference is occurring.

Cross-lane interference can be caused by several factors, including:

•A downlink antenna transmitting strong RF beyond its lane boundaries

•Reflection of RF from fixed objects (e.g., toll plazas with low, metal roofs)

•Reflection of RF from moving objects (e.g., a passing tractor-trailer in an adjacent

lane)

A typical toll lane application encompasses more than a single lane. In some cases a

toll plaza can have more than eight lanes with each lane having separate RF transmit-

ting (downlink) and receiving (uplink) antennas. As shown in Figure 6-1, the RF

transmitted within a lane is not bound by physical dividers such as lane barriers. With

multiple-lane applications, this can create areas of possible cross-lane interference.

Troubleshooting the Installation

6-5

Figure 6-1 RF Footprint Extends Beyond Lane Boundaries (Bistatic

Configuration Shown)

Diagnosing Cross-Lane Interference

To diagnose this type of interference, first set the RF power in all lanes to a moderate

setting (6 to 9 dB) for both downlink and uplink antennas. Follow the procedures out-

lined in “Why You Need to Tune a Lane” on page 5-3. Next, tune a single lane by fol-

lowing the lane tuning procedure outlined in that section. When tuning a lane be sure

to use a tag and vehicle that have been used consistently at your site.

Once the lane has been tuned and you determine that it is working satisfactorily, per-

form lane tuning procedures in the adjacent lane. Continue for each lane in the toll

plaza.

If each adjacent lane tuning causes the previously tuned lane to start performing

poorly (i.e., spotty read zone or areas of no reads), cross-lane interference is indicated.

Remedying Cross-Lane Interference

There are several methods that can be used to remedy cross-lane interference. These

are accomplished by software or hardware changes, or a combination of both. A rem-

edy at one site may not be appropriate at another site, so iterative methods of correct-

ing this interference are necessary.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

6-6

Frequency Separation

Review the toll plaza frequency plan that was developed during the IT2200 Reader

System with Multimode Capability installation phase. There are two frequencies for

each reader: downlink and uplink. For the IT2200 Reader System with Multimode

Capability, all readers share the same downlink frequency, which is generally set to

918.75 MHz. Uplink frequencies should alternate between 903.00 MHz and 912.00

MHz in adjacent lanes. For example, a four-lane plaza would have the frequencies

shown in Table 6-1.

RF Power

A good rule of thumb when configuring a toll plaza is to set the RF attenuation at a

lower output and increase the level as needed for optimal system operation (see “Lane

Tag Test” on page 5-6 for procedures to set the RF output). This practice may provide

you with RF attenuation settings at which your reader system can operate with mini-

mal adjustment for cross-lane interference.

Time Division Multiplexing

If after tuning each lane your toll plaza is still experiencing cross-lane interference,

you may want to configure the IT2200 Reader System with Multimode Capability

using time division multiplexing, or TDM. Time division multiplexing offers the

option of isolating each lane in the system so that it operates as a stand-alone reader

for a brief fraction of the transaction time. Time-division multiplexing permits the

antennas in each individual lane to operate apart from the other antennas in the toll

plaza. This results in one lane or alternating lanes transmitting and receiving RF at a

time. Figure 6-2 shows how TDM can delay the reader period and isolate lanes from

each other.

Table 6-1 Frequency Plan for Four-Lane Toll Plaza

Lane Downlink Frequency Uplink Frequency

1 918.75 MHz 903.00 MHz

2 918.75 MHz 912.00 MHz

3 918.75 MHz 903.00 MHz

4 918.75 MHz 912.00 MHz

Troubleshooting the Installation

6-7

Figure 6-2 TDM Synchronization

Benefits of Using TDM

TDM may remedy the problem of cross-lane interference by removing the possibility

of the RF footprint transmitting into an actively transmitting and receiving adjacent

lane. In this case no physical changes to the plaza or antennas is necessary.

Drawbacks of Using TDM

Based on site criteria, TDM may not be the best solution for correcting cross-lane

interference. By using TDM, you may unintentionally introduce a period of dead time

within the transaction time when a vehicle could pass through the lane unrecorded.

For example, if a toll plaza has five lanes and you choose to use TDM, each lane will

be operating only 20% of the time. If you have window of 80 ms when the lane is

dead, this might be sufficient time for a vehicle to travel through the lane undetected.

The TDM configuration for each lane can be adjusted so that more than one lane is

switched on at the same time. This reduces the amount of time that a lane is off and

reduces the probability of a vehicle passing through undetected. However, by config-

uring the site in this manner, you may reintroduce cross-lane interference across alter-

nating lanes.

Frequency Settings Using TDM

As discussed in “Frequency Separation” on page 6-6, there are two frequencies for

each reader: downlink and uplink. When using TDM to reduce cross-lane interfer-

ence, alternating lanes are switched off for a specified duration. For the IT2200

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

6-8

Reader System with Multimode Capability, all readers share the same downlink fre-

quency, which is generally set to 918.75 MHz. When using TDM, adjacent lanes can

be set to any of the uplink frequencies that are specified in the frequency plan (see

Table 6-1). The uplink frequencies in the adjacent lanes can be set to the same fre-

quency because one of the lanes is switched off when using TDM. This differs from

the traditional lane frequency plan. For example, a four-lane plaza using TDM could

have the frequencies shown in Table 6-2. Compare these settings with the frequency

settings for a system not using TDM as shown in Table 6-1.

Note: Where X delay and corresponding period and direction meet system needs.

Physical Remedies

By adjusting the angle or position of the downlink and uplink antennas, you may be

able to minimize cross-lane interference.

Warning

Switch off RF power before working on antennas.

Adjusting the Antenna’s Uptilt Angle

Lowering an antenna’s uptilt angle (the angle between the antenna cover and the hori-

zon) generally tends to reduce the interference (Figure 6-3).

Table 6-2 Frequency Settings Using TDM for Four-Lane Toll Plaza with TDM

Lane Downlink Frequency Uplink Frequency TDM Phase Delay

1 918.75 MHz 903.00 MHz 1 0

2 918.75 MHz 903.00 MHz 2 X

3 918.75 MHz 912.75 MHz 1 0

4 918.75 MHz 912.75 MHz 2 X

Troubleshooting the Installation

6-9

Figure 6-3 Antenna Tilt Angle Adjustment

Adjusting the Downlink Antenna Side Angle

In the IT2200 Reader System with Multimode Capability, the downlink antenna side

angle is adjusted so that the RF transmits toward the center of the toll lane, placing the

RF footprint where it is useful. If the side angle is too small the footprint can project

into the lane nearest to the downlink antenna. If the side angle is too great, and that the

RF footprint is projecting toward the uplink antenna, you can reduce the side angle so

that the antenna’s RF footprint is evenly placed within the correct lane boundaries

(Figure 6-4).

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

6-10

Figure 6-4 Downlink Antenna Side Angle Adjustment

Adjusting the Antenna Placement

Besides adjusting the antenna angles, you can also move the antenna farther back into

its overhead location so that the read zone does not extend as far in front of the trans-

action area. By shortening the read zone you may be able to reduce the required RF

output power. This will result in reduced probability of cross-lane interference.

Other Site Modifications

In rare instances, applying radar absorbing foam to fixed areas of the toll plaza (e.g.,

metal roof) may reduce the incidence of interference.

Troubleshooting Indications and Actions

This section includes troubleshooting information for the listed problems. Refer to the

appropriate table for detailed instructions. If applicable, the table refers you to the

removal and replacement procedure later in this section.

•Table 6-3, ”Failure Indicated by Host Software Diagnostics

•Table 6-4, ”Failure During Check Tag Test

•Table 6-5, ”Unacceptable RF Attenuation Statistics Using Check Tag

•Table 6-6, ”Unacceptable RF Attenuation Statistics Using Vehicle-Mounted Tag

•Table 6-7, ”Self-Test Fail LED on Reader Logic Card Lights

Troubleshooting the Installation

6-11

•Table 6-8, ”Spotty Pattern or Low Handshake Counts

Note: The troubleshooting procedures in this chapter test only the Amtech® IT2200

Reader System with Multimode Capability. For other problems, such as host computer

or power supply failure, refer to the manufacturer’s documentation for the correct

troubleshooting procedures.

Table 6-3 Failure Indicated by Host Software Diagnostics

Failed Test Action

Boot Flash Boot sector of flash memory failed. Replace reader logic card.

Application

Flash Application sector of flash memory failed. Replace reader logic

card.

TDM Incorrect TDM settings.

RFI RAM RFI RAM failed. Replace reader logic card.

Processor

RAM Processor RAM failed. Replace reader logic card.

Battery

Status Battery might be low or dead. Check that battery jumper J8 is

shorted (see Figure 6-5). If the jumper is shorted, the battery

failed. Replace the reader logic card.

Serial

EEPROM Serial EEPROM might have failed. Save configuration to

nonvolatile RAM. If the problem persists, the serial EEPROM

failed. Replace the reader logic card.

Real Time

Clock Clock or battery might have failed. Check that battery jumper J8 is

shorted (see Figure 6-5). If the jumper is shorted, the clock failed.

Replace the reader logic card.

RF Data

EEPROM Data cable, RF module data EEPROM, or RF module power

supply failed. Open the RF module and check for 19 to 28 VAC or

16 to 28 VDC at terminals A and C. If the voltage setting meets

your requirements, test the data cable using a loopback

connector. If the cable is good, the RF module data EEPROM

failed. Replace the RF module.

RF Serial

Link Data cable, RF module reader port, or RF module power supply

failed. Open the RF module and check for 19 to 28 VAC or 16 to

28 VDC at terminals A and C. If the voltage setting meets your

requirement, test the data cable using a loopback connector. If

the cable is good, the RF module reader port failed. Replace the

RF module.

RF PLL

Lock Data cable, RF module PLL lock, or RF module power supply

failed. Open the RF module and check for 19 to 28 VAC or 16 to

28 VDC at terminals A and C. If the voltage setting meets your

requirements, test the data cable using a loopback connector. If

the cable is good, the RF module PLL lock failed. Replace the RF

module.

Frequency

Program

Mode

Check that the frequency enable switch SW1 on the reader logic

card is set to diagnostic or normal as needed (see Figure 6-6).

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

6-12

Figure 6-5 Location of Battery Jumper (J8) in Relation to Battery

Figure 6-6 Frequency Enable Switch on Rear of IT2020 Reader Logic Card

Troubleshooting the Installation

6-13

Table 6-4 Failure During Check Tag Test

Indication Action

No response to

check tag read

request

Repeat the check tag test, being careful to verify that all test

parameters are correctly set.

Slow or

intermittent

read count or

incorrect serial

number

The check tag antenna might have failed. Verify that the check tag

antenna is correctly positioned in relation to the transmit antenna

(see Figure 4-17 on page 4-23). Be sure that the check tag

antenna cable is securely fastened to the check tag antenna port

on the RF module.

Repeat the check tag test. If the problem persists, replace the

check tag antenna.

Table 6-5 Unacceptable RF Attenuation Statistics Using Check Tag

Indication Action

Unacceptable

RF attenuation

statistics using

check tag

Verify that the check tag antenna is correctly positioned in relation

to the transmit antenna (see Figure 4-17 on page 4-23). Be sure

that the check tag antenna cable is securely fastened to the check

tag antenna port on the RF module.

Repeat the check tag test. If the problem persists, replace the

check tag antenna.

Table 6-6 Unacceptable RF Attenuation Statistics Using Vehicle-Mounted Tag

Indication Action

Unacceptable

RF attenuation

statistics using

vehicle-

mounted tag

If, after moving vehicle to check for holes in the read pattern, the

problem persists, repeat the test using a different tag.

If the problem persists with a new tag, verify that the transmit and

receive antennas are correctly positioned (see Figure 4-15 on

page 4-20). Check that the antenna cables are securely

connected to the RF module.

If no problem can be found with the antennas or antenna cables,

contact the TransCore Action Center (TrAC).

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

6-14

Table 6-7 Self-Test Fail LED on Reader Logic Card Lights

Indication Action

SELF-TEST

FAIL LED on

reader logic

card lights

during startup

Data cable or RF module power supply failed. Open the RF

module and check for 24 VAC at terminals A and C. The voltage

should be 19.2V to 28.8 VAC or 16 to 28 VDC. If voltage setting

meets your requirements, test the data cable using a loopback

connector. If the cable is good, the RF module failed. Replace

the RF module.

Troubleshooting the Installation

6-15

Table 6-8 Spotty Pattern or Low Handshake Counts

Indication Action

Spotty

pattern or

low

handshake

counts

This is a two-person operation. Person 1 checks commands and

responses using the host software. Person 2 uses a hydraulic lift to

check the physical connections.

The problems of spotty pattern or low handshake counts usually

have the same cause: either a defective RF coaxial cable between

the RF module and an antenna or a defective antenna. This

procedure checks both cables and antennas.

Warning

Switch off RF power before working on antennas.

Caution

Only switch on RF power when the RF module transmit port is

connected to an antenna or other load device.

Troubleshooting at the Lane

1. Person 1: Disconnect the data cable from the reader logic card

in the lane controller.

2. Connect the data cable to the extension data cable, then

connect the extension data cable to the reader logic card in the

PC.

3. Person 2: Open the RF module cover and measure the voltage

at Terminals A and C. The voltage should be 19 to 28 VAC or

16 to 28 VDC depending on your requirements.

Using Engineering Host Software Diagnostics

1. Person 1: Start the PC, then double-click the Host icon to start

the host software. Upon startup, the Power On Status

Information screen appears. Click Cancel to clear this screen.

2. From the Reader menu, select RF Attenuation. When the RF

Attenuation Parameters screen appears, set the downlink and

uplink attenuation to 0, then click Apply.

3. From the Options menu, select Diagnostics, then Diagnostics

Control.

4. Person 2: Disconnect the transmit antenna cable from the RF

module.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

6-16

Measuring Power and VSWR

1. Connect the RF jumper cable from the RF module transmit

port to the wattmeter input port.

2. Connect the antenna cable to the wattmeter output port.

3. Person 1: Select Continuous Uplink on the host software.

4. Person 2: Measure uplink power. It should be 28 to 30 dBm.

5. Measure the VSWR of the transmit antenna. It should be a

maximum of 1.6:1.

6. If VSWR is out of tolerance, test the antenna cable near the

connectors by moving it. Any significant change in VSWR

indicates a poorly terminated connection. Have Person 1

disable the continuous uplink, then replace the antenna cable

and repeat Steps 10 and 12. If the VSWR is still out of

tolerance, replace the transmit antenna.

7. Person 1: Disable the uplink.

8. Person 2: Disconnect the transmit antenna from the wattmeter

and connect the receive antenna.

9. Person 1: Select Continuous Uplink on the engineering host

software diagnostics.

10. Person 2: Measure the VSWR of the receive antenna. It should

be a maximum of 1.6:1.

11. If VSWR is out of tolerance, test the antenna cable near the

connectors by moving it. Any significant change in VSWR

indicates a poorly terminated connection. Have Person 1

disable the continuous uplink, then replace the antenna cable

and repeat Steps 16 and 17. If the VSWR is still out of

tolerance, replace the receive antenna.

12. Person 1: Disable the uplink and select Continuous

Downlink RF.

13. Person 2: Measure downlink power. It should be 20 to 27

dBm.

If the previous procedures did not reveal a problem, replace the

reader logic card and retest the system.

Table 6-8 Spotty Pattern or Low Handshake Counts (continued)

Indication Action

Troubleshooting the Installation

6-17

Removal and Replacement Procedures

This section outlines the procedures to remove or replace IT2200 Reader System with

Multimode Capability components.

Reader Logic Card

Caution

To prevent electrostatic discharge damage (ESD) be sure to wear a properly

grounded wrist strap before handling the reader logic card. Be sure the host com-

puter or lane controller is switched off before removing or replacing the card.

Removal

To remove the reader logic card

1. Record frequency and attenuation settings.

2. Turn off power to the host computer or lane controller.

3. Disconnect the data cable from the reader logic card.

4. Remove the screws holding the card brackets.

5. Remove the card.

Replacement

To install the replacement reader logic card

1. Check the dip switch settings on the new card.

2. Short the battery jumper on the new card.

3. Install the card in an ISA slot in the host computer or lane controller.

4. Fasten both connector brackets.

5. Connect the data cable to the reader logic card

6. Set the frequency and attenuation levels.

7. Check the lane tuning as described in “Testing the Footprint” on page 5-11.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

6-18

RF Module

Caution

Only switch on RF power when the RF module transmit port is connected to an

antenna or other load device.

Removal

To remove the RF module

1. Turn off power to the RF module.

2. Disconnect the RF module power cable, data cable, and all three antenna cables.

3. Remove the nuts holding the mounting bracket U-bolts, then remove the RF

module.

Replacement

To install the replacement RF module

1. Position the RF module on the mounting pipe.

2. Insert the U-bolts through the mounting brackets and secure with lock washers

and nuts.

3. Tighten the nuts to 50 ft/lb.

4. Place a length of heat shrink tubing over each antenna cable.

5. Connect the data cable, all three antenna cables, and the power cable.

6. Check the lane tuning as described in “Testing the Footprint” on page 5-11.

Transmit/Receive Antennas

Removal

To remove a transmit or receive antenna

1. Turn off power to the RF module and disconnect the power cable.

2. Remove shrink tubing covering connector.

3. Disconnect the antenna cable from the antenna.

4. Check the antenna mounting angle using an inclinometer and record the angle.

5. If removing the transmit antenna, note the position of the spacers on the outside

mounting bracket.

6. Remove the nuts holding the mounting bracket U-bolts, then remove the antenna.

Troubleshooting the Installation

6-19

Replacement

To install a replacement antenna

1. Position the new antenna along the mounting pipe.

2. Insert the U-bolts through the mounting brackets and secure with lock washers

and nuts. If replacing the transmit antenna, add spacers in the same position as

before.

3. Set the antenna mounting angle to match the original antenna.

4. Tighten the nuts to 68 N-m (50 ft/lb).

5. Put a length of heat shrink tubing over the antenna cable and connect the cable to

the antenna.

6. Check the lane tuning as described in “Testing the Footprint” on page 5-11.

7. When lane tuning is complete, heat the shrink tubing covering the antenna cable

connection.

Check Tag Antenna

Removal

To remove the check tag antenna

1. Turn off power to the RF module and disconnect the power cable.

2. Disconnect the check tag antenna cable.

3. Note the position of the check tag antenna with relation to the transmit antenna

(see Figure 3-1 on page 3-3.

4. Remove the nuts holding the mounting bracket U-bolts, then remove the antenna.

Replacement

To install the replacement check tag antenna

1. Position the new antenna along the mounting pipe.

2. Insert the U-bolts through the mounting brackets and secure with lock washers

and nuts.

3. Position the check tag antenna to match the original antenna (see Figure 3-1 on

page 3-3).

4. Tighten the nuts to 68 N-m (50 ft/lb).

5. Put a length of heat shrink tubing over the antenna cable and connect the cable.

6. Perform the check tag test described on “Check Tag Test” on page 5-9.

7. When lane tuning is complete, heat the shrink tubing covering the check tag

antenna cable connection.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

6-20

Data Cable

Removal

To remove the data cable

1. Turn off power to the RF module and computer housing the reader logic card.

2. Disconnect the data cable.

Replacement

To install the replacement data cable

1. Connect the loopback connector to the new cable and test the cable for continuity.

2. Connect the new cable to the RF module and reader logic card.

3. Turn on power to the RF module.

4. Check the lane tuning as described in “Testing the Footprint” on page 5-11.

Antenna Cable

Removal

To remove an antenna cable

1. Turn off power to the RF module.

2. Disconnect the antenna cable.

Replacement

To install a replacement antenna cable

1. Connect the new cable to the RF module.

2. Place a piece of heat shrink tubing over the antenna cable.

3. Connect the cable to the antenna.

4. Turn on power to the RF module.

5. Check the lane tuning as described in “Testing the Footprint” on page 5-11.

6. When lane tuning is complete, heat the shrink tubing covering the antenna cable

connectors.

Preventive Maintenance

7-3

Chapter 7

Preventive Maintenance

This chapter provides schedules and instructions for performing

preventive maintenance on the IT2200 Reader System with Multimode

Capability components.

Preventive Maintenance Schedule

Table 7-1 lists the schedule of preventive maintenance activities for the IT2200

Reader System with Multimode Capability components.

Table 7-1 Preventive Maintenance Schedule

Visual Inspection

The IT2200 Reader System with Multimode Capability is very reliable, so many prob-

lems will be due to external causes, such as damage to components. Visually inspect

each system component and replace or repair components as needed. Replacement

procedures are listed later in this chapter.

To perform a visual inspection

1. Inspect the antennas for signs of damage or corrosion.

2. Check the RF module housing for signs of water leakage that might indicate a

broken or loose connector or a damaged seal.

3. Check cables between the RF module, antennas, and reader. Look for damage or

loose connections.

Use the flowchart in Figure 7-1 as a guide for performing visual inspections.

Period Task Description

Weekly Visually inspect the antennas and RF module housing for

physical damage such as cracks or stressed cables.

Quarterly Visually inspect all antenna and RF module cables for signs of

damage or water invasion.

Semiannually Check the lane tuning (see Chapter 5, "Tuning the Lane").

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

7-4

Figure 7-1 Visual Inspection Process

Acronyms and Glossary

A-3

Appendix A

Acronyms and Glossary

A/V audiovisual

Aamp(s)

AAR Association of American Railroads

AC alternating current

ACK acknowledge (data valid)

active tag tag powered by a battery

antenna passive device that converts RF energy into magnetic energy (RF signal)

ASCII American Standard Code for Information Interchange

ATA American Trucking Association. This refers to a standard RF communications proto-

col and data storage method. ATA-type tags are read only.

AVI automatic vehicle identification

backscatter portion of an RF signal that is modulated by a tag and radiated back to the reader

baud measure of number of bits per second of a digital signal; for example, 9600 baud =

9600 bits per second

BDM background debugger mode

BIST built-in self test

bit The smallest unit of information, consisting of a 0 or 1 that is formed from binary digit

bps bits per second

byte binary character; for example, one 8-bit ASCII character

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

A-4

CAM Custom autonomous mode used to run reader in semi-intelligent mode

check tag tag mounted inside IT2611 RF Module assembly

cm centimeter(s)

command data set that is recognized by the receiving device as intending to elicit a specific

response

conduit hardware portion of a particular interface; or, flexible steel pipe used for electrical wir-

ing

CR carriage return

CRC cyclic redundancy check

CTRL control

data information that is processed by a computing device

DC direct current

dB decibel(s)

dBM decibel(s)-milliwatts (30dBM = 1 watt; 1 dBM = 1 milliwatt)

dedicated lane lane that is restricted to tag-equipped vehicles

ECP error correcting protocol

eol end of line

eom end of message

EEPROM electrically erasable programmable read-only memory

EPROM erasable programmable read-only memory

ESD electrostatic discharge

ETC electronic toll collection

Acronyms and Glossary

A-5

FCC Federal Communications Commission

field physical area/space in which a tag can be read by the reader; also, an element of a data

record/frame. For example, division within a tag's data frame.

frame consecutive bits of data in memory that are read and written as a group

frequency bands range of RF frequencies assigned for transmission by an RF device

ft foot or feet

hex hexadecimal

hexadecimal base 16 numbering system that uses the characters 0–9 and A–F to represent the digits

0–15

host device, generally a computer, that is connected to the IT2200 Reader System compo-

nents through the communications port

Hz hertz

I/O input/output

ID identification; encoded information unique to a particular tag

in inch(es)

interface connection point for communication with another device

IP industry pack

ISA industry standard architecture

IRQ interrupt request

ISO International Organization for Standardization

IT2200 the IT2200 product line of equipment capable of communicating with read/write tags

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

A-6

kkilo (103)

lane controller device that is used to integrate all the activity that occurs in a toll lane

lb pound(s)

LCD liquid crystal display

LED light-emitting diode

LSB least significant byte

message combination of fields, frames, and pages as required by the system to transmit or

receive associated command and response data to and from the reader and host

mmeter(s)

Mega million (106)

MB megabyte(s)

MHz megahertz

mixed-use lane lane equipped to handle cash transactions as well as tag-equipped vehicles

mode method of operation

ms milliseconds

MSB most significant byte

MTBF mean time between failure

MTTR mean time to replace

milli one-thousandth (10-3)

mW milliwatt(s)

Acronyms and Glossary

A-7

NNewton(s)

NACK negative acknowledgment (data not valid)

NEMA National Electrical Manufacturers Association

nibble sequence of four adjacent bits treated as a unit

NVM nonvolatile memory

NVRAM nonvolatile RAM used to hold data over power loss

page logical group of bytes representing data stored in a tag. A page is a maximum of 128

bits

PC personal computer

PDT portable data terminal

PLL phase locked loop

protocol specified convention for the format of data messages communicated between devices

PWA printed wiring assembly

RAM random access memory

read process of acquiring data from a device; for example, from a tag or from computer

memory

reader controlled interrogating device capable of acquiring data from a device; for example,

acquiring and interrupting data from a tag

read zone physical area in which a tag can be read by the reader system

RF radio frequency

RFID radio frequency identification

ROM read-only memory

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

A-8

ssecond(s)

SCSI small computer systems interface

SRAM static random access memory

som start of message

system a reader, RF module, antenna, tag, and tag programmer, all described by their general

application and their interfaces with each other and any connected devices that are

defined as being outside the system

tag small, self-contained device acting as an identifying transponder

tag programmer initialization device that is capable of setting or programming a tag into its initial

functional mode of operation

TDM time division multiplexing, used in this document to refer to the use of time division

multiplexing of multiple readers within close proximity of each other

TDMA time division, multiple access refers to the capability to read multiple tags in an open-

road configuration by a single reader.

Title 21 State of California code of regulations, Chapter 16, Title 21, standard used for AVI/

DSRC (digital short-range communication) communication protocol

toll any application of the system equipment wherein the equipment is used to assist in the

orderly collection of money in exchange for the passage of a vehicle through a partic-

ular installation point

TrAC TransCore Action Center

transponder a tag

UPS uninterruptible power supply

UTA universal toll antenna

Acronyms and Glossary

A-9

Vvolt(s)

Ver version (software)

VSWR voltage standing wave ratio

Wwatt(s)

write process of recording data; for example, writing to computer memory or to a tag’s

memory. Writing writes over (erases) previous data stored at the specified memory

locations

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

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Block Diagrams

-3

Appendix B

Block Diagrams

This appendix shows the block diagrams for the individual IT2200

Reader System with Multimode Capability components as well as the

interface connections between the components.

IT2200 Reader System with Multimode Capability

Figure B-1 IT2200 Bistatic Reader System Functional Block Diagram

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

B-4

Figure B-2 IT2200 Monostatic Reader System Functional Block Diagram

Block Diagrams

B-5

IT2020 Reader Logic Card

Figure B-3 IT2020 Reader Logic Card Functional Block Diagram

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

B-6

Figure B-4 IT2020 Reader Logic Card Interface

Block Diagrams

B-7

Figure B-5 Minimum Connections for the IT2020 Reader Logic Card Interface (Bistatic Application)

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

B-8

Figure B-6 Minimum Connections for the IT2020 Reader Logic Card Interface (Monostatic Application)

Block Diagrams

B-9

IT2611 RF Module

Figure B-7 IT2611 RF Module Functional Block Diagram (Bistatic Configuration)

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

B-10

Figure B-8 IT2611 RF Module Functional Block Diagram (Monostatic Configuration)

System Technical Specifications

C-3

Appendix C

System Technical Specifications

This chapter provides reference information for the IT2200 Reader

System with Multimode Capability components.

Component Specifications

This appendix describes the engineering specifications for the IT2200 Reader System

components.

IT2020 Reader Logic Card

Electrical Specifications

The reader logic card requires +5 VDC and +12 VDC power, which is supplied by the

host computer or lane controller power supply.

Circuit breakers and disconnects are unnecessary with the reader logic card. Because

all input and output signals have limited short circuit current drive, there is no need to

include a circuit breaker. Lightning protection is achieved through the use of optically

coupled signals between the reader logic card and the RF module. These two units are

connected via copper wire with optical isolation on the reader logic card. The card

provides all of the following interfaces: card edge, ISA, RS-232, optically isolated

input/output interface, optional external power, background debugger mode (BDM),

TDM, diagnostics, and IP daughterboard.

Table C-1 shows the electrical requirements for the IT2020 Reader Logic Card.

Table C-2 shows the power consumption estimates for the card’s individual assem-

blies.

Table C-1 IT2020 Reader Logic Card Electrical Requirements

Specification Value

Input power <10W

Power connections ISA bus or direct

Warm-up time < 30 seconds

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Table C-2 IT2020 Reader Logic Card Power Consumption

Environmental Specifications

The IT2020 Reader Logic Card can withstand the environmental tolerances shown in

Table C-3.

Table C-3 IT2020 Reader Logic Card Environmental Tolerances

Physical Specifications

Table C-4 lists the physical specifications of the IT2020 Reader Logic Card.

Table C-4 IT2020 Reader Logic Card Physical Specifications

Component +5 VDC +12 VDC

ISA PWA 500 mA

Encoder/Decoder/TDM Module 200 mA

I/O Module 75 mA 200 mA

Total: 775 mA 200 mA

Environment Tolerance

Dust Reader logic card is installed in host computer or lane

controller Therefore it is not exposed to external

environmental tolerances.Rain

Corrosive resistance

Shock 5 G ½-sine pulse, 10 ms duration, 3 axis

Vibration 1.0 Grms 10-500 Hz

Operating

temperature -20° to +55°C (-4° to +131°F)

Storage temperature -20° to +70°C (-4° to +158°F) ambient air temperature

Humidity 10 to 95% noncondensing

Characteristic Specification

Size 33.3 x 12.2 x 1.5 cm (13.1 x 4.8 x 0.6 in)

Weight 0.45 kg (1 lb)

System Technical Specifications

C-5

IT2611 RF Module

The IT2611 RF Module provides two-way RF communication between the IT2020

Reader Logic Card and any tags compatible with the IT2200 protocol. It relays data

and control signals from the reader logic card to the tags and relays tag responses to

the reader logic card.

Interfaces

The RF module has five external interfaces:

•Antennas—Three Type N socket connectors are used to connect the RF module to

the transmit, receive, and check tag antennas using low-loss, coaxial RF cables.

•Tag data/control—A 26-pin connector is used to connect the RF module to the

reader logic card using the data cable.

•Power—A 3-pin connector is used to connect the RF module to a power supply

(19-28 VAC @47-63 Hz or 16-28 V DC).

The data connector connects to the logic card to supply tag data information and com-

munication to the RF module.

Electrical Specifications

Table C-5 shows the electrical requirements for the IT2611 RF Module.

Table C-5 IT2611 RF Module Electrical Requirements

Environmental Specifications

The IT2611 RF Module can withstand the environmental conditions shown in Table

C-6.

Characteristic Specification

Input power 19-28 VAC @47-63 Hz or 16-28 V DC

Power consumption 40 W maximum

Power connection 3-pin connector

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

C-6

Table C-6 IT2611 RF Module Environmental Specifications

Physical Specifications

Table C-7 lists the physical specifications of the IT2611 RF Module.

Table C-7 IT2611 RF Module Physical Specifications

Housing Specifications

The RF module housing consists of the following components:

•Fiberglass enclosure

•Bulkhead Type N connectors for antenna connections

•Bulkhead circular waterproof connectors for power and interface

•Stainless steel mounting hardware

Internal RF module printed wiring assemblies mount into a half-size ISA card cage.

This card cage mounts into the fiberglass enclosure for final mounting. All interface

connectors to the RF module are made through the fiberglass enclosure wall in bulk-

head style.

AA3152 Universal Toll Antenna and

AA3153 Beacon Antenna

Because the specifications for the AA3152 and AA3153 antennas are similar, this sec-

tion covers both antennas.

•Operates in the location and monitoring service band (902 to 928 MHz)

•Optimum radiation pattern—Virtually no side or back lobes help confine antenna

coverage to a single lane.

Environment Specification

Shock 5 G ½-sine pulse, 10 ms duration, 3 axes

Vibration 1.0 Grms 10 to 500 Hz

Operating temperature -20° to +55°C (-4° to +131°F)

Humidity 95% noncondensing

Specification Value

Size 33 x 35.6 x 21.6 cm (13 x 14 x 8.5 in)

Weight 11.34 kg (25 lb)

System Technical Specifications

C-7

•Weatherproof—Each antenna is housed in a radome made of materials with favor-

able electrical characteristics and resistance to ultraviolet radiation.

•Bandpass filtering helps to attenuate interference from other RF sources.

Environmental Specifications

The AA3152 and AA3153 antennas can withstand the environmental tolerances

shown in Table C-8.

Table C-8 Antenna Environmental Tolerances

IT2502 Check Tag Antenna

The IT2502 Check Tag Antenna allows the reader logic card and RF module to test

system operation using the check tag. The check tag antenna is mounted near the

transmit antenna and connected to the RF module through a low-loss, coaxial RF

cable.

Environment Specification

Dust NEMA pub 250-1991, Sec. 6.5, page 18

Rain NEMA pub 250-1991, Sec. 6.4, page 17 and Sec. 6.7, page

Corrosion

resistance NEMA pub 250-1991, Sec. 6.9, page 20

Shock 5 G ½-sine pulse, 10 ms duration, 3 axes

Vibration 0.5 Grms 10-500 Hz

Temperature range -40° to +75°C (-40° to +167°F)

Humidity 100% condensing

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Hardware Interfaces

D-3

Appendix D

Hardware Interfaces

This appendix describes the physical interconnections within the IT2200

Reader System with Multimode Capability.

Reader Logic Card Hardware Interconnection

Interconnection to the IT2020 reader logic card includes an ISA bus interface. All

power and communications to the lane controller computer are routed through this

standard interface. Interface lines from the reader logic card to the RF module are

attached via an external connector.

The default configuration settings are

IRQ = 5 Possible range is 5, 6, 7, 10, 11, 12, 14, and 15

(Or no-interrupt with all switches off)

I/O (Input/Output) address = 220H Possible range 000H to 3FCH

Note: Many PCs that have an installed sound card use 5 as its IRQ and 220H for

its I/O address. If you are installing the IT2020 Reader Logic Card into a PC with a

sound card you must change the reader logic card I/O address and IRQ setting.

•Frequency Enable Switch (S1) Placing this switch to the right, places the reader

into Frequency Programming Mode, which lets the user change frequencies of the

RF. This switch enables the use of the Set RF Frequency command.

•I/O Address Switch (S2) The switch for setting the I/O address has 8 positions,

which controls the bit value for A9 through A2, with A1 and A0 defaulting to 0.

When the switch is placed in the ON position, it corresponds to a Hi State - 1. An

example of setting the switch to equal 220H (default) is shown below. The possi-

ble range of the I/O address switch S2 is from 000H to 3FCH.

•Interrupt Request (IRQ) Switch (S3) The IRQ switch provides selection of the

ISA interrupt. The switch has 8 positions and when on, corresponds to the Inter-

rupt selected. Note that all switches OFF will provide operation in the polled

mode. Setting a switch to ON selects that interrupt.

•Hardware (H/W) Version Switch (S4) The H/W Version Switch sets the hard-

ware version number on the logic board.

Caution

Switch S4 is set at the factory and should not be changed.

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D-4

•Battery Jumper (J8) This jumper must be installed for the battery to backup

SRAM in the event of a power loss. This jumper should remain open while this

reader logic card is in storage.

Figure D-1 shows the locations of the IT2020 Reader Logic Card switches.

Figure D-1 Locations of Switches on IT2020 Reader Logic Card

16 Bit ISA Bus

The card edge connector comprises two sets of contact pins on both sides of the board.

The set closest to the PC bracket and the back of the board is the signals for the origi-

nal 8-bit ISA bus. There are 31 contact pins on each side of the board in this set of

signals. The pins designated A1 through A31 are on the component side of the board,

while the pins designated B1 through B31 are on the back side of the board. A1 and

B1 are closest to the bracket end of the PC card. The second set of pins on the board

edge are all of the signals that were added when ISA expanded to a 16-bit data bus.

There are 18 contact pins on each side of the board in this set. The pins designated C1

through C18 are on the component side of the board, while the pins designated D1

Hardware Interfaces

D-5

through D18 are on the back side of the board. Pins C1 and D1 are closest to the

bracket end of the PC card. Signal I/O is with respect to the ISA reader.

Optional External Power

Typically, the logic card receives power from the ISA bus. When the card is inserted

into an ISA bus backplane, this connector is not used. If the logic card is used in an

application where no ISA bus is present, the card receives power through this connec-

tor. Table D-1 lists definitions of the connector pins and the power supply require-

ments. The signal I/O is with respect to the ISA reader.

Expansion Interfaces (Industry Pack)

The ISA reader provides a minimum of two expansion slots on a mezzanine bus that

follows the definition of the Industry Pack (IP) Bus VITA 4-1995 draft document.

The clock speed for this bus is 8 MHz. The physical interface is made with two Type-

D connectors per each expansion slot. The connectors are AMP, Incorporated, part

173280-3 or equivalent on the ISA board. One connector contains all of the bus inter-

face and logic and the second is used for all user-defined I/O.

For implementing the IT2000 Encoder/Decoder daughterboard, the I/O connector

contains connections for a UART interface from the 68360 for the control interface to

the RF module, and discrete outputs used to control the RF power on/off of the RF

uplink and RF downlink of the RF module. All unused pins are reserved.

Signal I/O is with respect to the ISA printed wiring assembly (PWA).

The RF module interface connector is a 25-pin Type-D (DB-25F) socket connector. It

provides an interface to the RF module portion of the reader.

Table D-1 Optional External Power Pin Definition

Pin Signal In/Out Description

1 GND In/Out Ground

2 +5 VDC In +5 volt power

3 + 5VDC In +5 volt power

4 -12 VDC In -12 volt power

5 +12 VDC In +12 volt power

6 GND In/Out Ground

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D-6

LEDs

These LEDs denote the reader status. The LEDs are placed in logical groups along the

top edge of the board. The colors for the indicators were chosen to assist in trouble-

shooting. A software bit control circuit switches on all of the indicators in one of the

reader board’s initialization routines.

Time Division Multiplexing Connector

Interconnect for time division multiplexing (TDM) is provided by a differential RS-

485 interface with a DB-9 connector located on the expansion connector in slot 2. This

connection provides a synchronization interface between readers to provide multiplex-

ing in time. This interface connection can be daisy-chained from reader to reader dur-

ing installation (Figure D-2) and can operate by synchronizing the readers to each

other by a synchronization pulse from a primary reader. Because there are two sets of

the TDM synchronization pins, one set can be used and the incoming and the second

set can be used for outgoing signals. By daisy-chaining the readers on separate pins,

the downstream side (away from the primary reader) loses synchronization when dis-

connected. TransCore recommends that both upstream and downstream connections

be wired to the same positive (+) and negative (-) pins as shown in Figure D-2.

Figure D-2 Typical TDM Installation

With the use of low-loss/capacitance twisted pair cable, the maximum distance is 305

m (1000 ft), but can vary with installation and type of cable used. The suggested cable

is either Belden 89182 or 8132. Table D-2 shows the pin designations and descriptions

for the TDM connector.

Hardware Interfaces

D-7

Table D-2 TDM Connector

Background Debugger Connector

The background debugger (BDM) connector is a 10-pin, 0.1-center dual-row header,

with a configuration is 2 by 5. This connector is used for debugging only and is a

Motorola proprietary interface.

Table D-3 shows the pin designations and descriptions for the BDM connector.

Table D-3 BDM Connector

Pin Name Type Description Recommended Connection

1 N/C N/A No connection

2 TDM (-) In/Out TDM synchronization negative Connect all negative

connections together. Connect

all positive connections

together.

3 TDM (+) In/Out TDM synchronization positive

4 N/C N/A No connection

5 N/C N/A No connection

6 N/C N/A No connection

7 TDM (+) In/Out TDM synchronization positive Ignore pins 7 and 8.

8 TDM (-) In/Out TDM synchronization negative

9 N/C N/A No connection

Pin Signal I/O Description

1 DS_L Data strobe

2 BERR_L Bus error

3 GND Ground

4 BKPT/DSCLK Development serial clock

5 GND Ground

6 FREEZE Breakpoint acknowledge

7 RESET_L Hard system reset

8 IFETCH/DSI Development serial input

9VCC +5 VDC

10 IPIPE0/DSO Development serial output

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

D-8

General Purpose I/O Port (IT2020-004 Reader)

The connector is a 32-pin, 0.1-center dual-row header (2 by 16). This connector is for

future use only. Table D-4 shows the pin designations for the general purpose I/O con-

nector.

Table D-4 General Purpose I/O Connector

Hardware Diagnostic Port

The connector is a 34-pin, 0.1-center dual-row header (2 by 17). Signal I/O is with

respect to the ISA reader. Table D-5 shows the pin designations and descriptions for

the hardware diagnostic connector.

Pin Signal In/Out Description

1 EXT_INT+ In External interrupt input signal (IT2020-004

reader only)

2BIN1 In

2BIN2 In

3BIN3 In

4BIN4 In

5 BOUT4 Out

6 BOUT3 Out

7 BOUT2 Out

8 BOUT1 Out Good tag output signal (active low) (IT2020-

004 reader only)

9VCC

Hardware Interfaces

D-9

Table D-5 Hardware Diagnostic Port

Pin Signal In/Out Description

1 HDP_EN_L In Enables Output Buffers

2 GND Out Ground

3 CONT_CW_INP In Enable CW Mode

4VCC Out+5 volts

5 SWSIG0 Out SW Controlled Debug Bit

6 SWSIG1 Out SW Controlled Debug Bit

7 SWSIG2 Out SW Controlled Debug Bit

8 SWSIG3 Out SW Controlled Debug Bit

9 SWSIG4 Out SW Controlled Debug Bit

10 SWSIG5 Out SW Controlled Debug Bit

11 SWSIG6 Out SW Controlled Debug Bit

12 SWSIG7 Out SW Controlled Debug Bit

13 B_HDRDET Out Buffered Tag Data Present

14 B_MOD Out Modulation

15 B_DECINT_L Out Decoder Interrupt

16 B_TDMINT_L Out TDM Interrupt

17 B_MRESET_L Out 360 Reset from any Source

18 B_ISARES_L Out ISA Command or HW Reset

19 B_ISAIRQ_H Out IRQ to Host

20 B_IRQ1_L Out IRQ from Host

21 GND Out Ground

22 GND Out Ground

23 B_IF_A Out IF Data A

24 B_IF_B Out IF Data B

25 B_IF_C Out IF Data C

26 B_SPARE1 Out Spare

27 B_SPARE2 Out Spare

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

D-10

RS-232

The connector is an industry standard DB-9M plug. Table D-6 shows the RS-232 con-

nector pin designations and descriptions for the RS-232 connector.

Table D-6 RS-232 Connector

28 B_SPARE3 Out Spare

29 B_SPARE4 Out Spare

30 B_SPARE5 Out Spare

31 VCC Out +5 volts

32 VCC Out +5 volts

33 GND Out Ground

34 GND Out Ground

Pin Signal In/Out Description

1 RSD N/C Received line signal detect

2 RXD In Receive data

3 TXD Out Transmit data

4 DTR N/C Data terminal ready

5 GND In/Out Ground

6 DSR N/C Data set ready

7 RTS Out Request to send

8 CTS In Clear to send

9 RI N/C Ring indicator

Table D-5 Hardware Diagnostic Port (continued)

Pin Signal In/Out Description

Hardware Interfaces

D-11

IT2020 Reader Logic Card Interface

This section shows the input/output and interrupt request line factory (default) config-

uration settings (Table D-7 and Table D-8) for the IT2020 Reader Logic Card.

Table D-7 IT2020 Reader Logic Card Default I/O Settings

Table D-8 IT2020 Reader Logic Card Default IRQ Settings

Note: Only one IRQ switch should be selected. If more than one switch is set, multiple

interrupts will occur.

Pin Designations

Tables D-9 through D-13 list the pin specifications for the IT2020 Reader Logic Card,

IT2611 RF Module, and IT2410 Tag Programmer. Figure D-3 shows the locations of

the LEDs on the IT2020 Reader Logic Board.

IT2020 ISA Card Interface Connector

Switch Number 8765 4321 xx

Switch State on off off off on off off off x x

Switch Number 87654321

IRQ 15 14 12 11 10 7 6 5

Table D-9 ISA Bus Pin Definition

Pin Signal In/Out Description

A1 IOCHK_L Out I/O channel check

A2 D7 In/Out Data bus, bit 7

A3 D6 In/Out Data bus, bit 6

A4 D5 In/Out Data bus, bit 5

A5 D4 In/Out Data bus, bit 4

A6 D3 In/Out Data bus, bit 3

A7 D2 In/Out Data bus, bit 2

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

D-12

A8 D1 In/Out Data bus, bit 1

A9 D0 In/Out Data bus, bit 0

A10 CHRDY Out I/O channel ready

A11 AEN In Address enable

A12 SA19 In System address, bit 19

A13 SA18 In System address, bit 18

A14 SA17 In System address, bit 17

A15 SA16 In System address, bit 16

A16 SA15 In System address, bit 15

A17 SA14 In System address, bit 14

A18 SA13 In System address, bit 13

A19 SA12 In System address, bit 12

A20 SA11 In System address, bit 11

A21 SA10 In System address, bit 10

A22 SA9 In System address, bit 9

A23 SA8 In System address, bit 8

A24 SA7 In System address, bit 7

A25 SA6 In System address, bit 6

A26 SA5 In System address, bit 5

A27 SA4 In System address, bit 4

A28 SA3 In System address, bit 3

A29 SA2 In System address, bit 2

A30 SA1 In System address, bit 1

A31 SA0 In System address, bit 0

B1 GND In/Out Ground

B2 RESDRV In Reset driver

B2 +5 VDC +5 volt power

B4 IRQ9 Out Interrupt request 9

Table D-9 ISA Bus Pin Definition (continued)

Pin Signal In/Out Description

Hardware Interfaces

D-13

B5 -5 VDC -5 volt power

B6 DRQ2 Out DMA request 2

B7 -12 VDC -12 volt power

B8 NOWS_L Out No wait state

B9 +12 VDC +12 volt power

B10 GND In/Out Ground

B11 SMWT_L In System memory write

B12 SMRD_L In System memory read

B13 IOW_L In I/O write

B14 IOR_L In I/O read

B15 DAK3_L In DMA acknowledge 3

B16 DRQ3 Out DMA request 3

B17 DAK1_L In DMA acknowledge 1

B18 DRQ1 Out DMA request 1

B19 REFRESH_L In/Out DRAM refresh control

B20 BCLK In Bus clock

B21 IRQ7 Out Interrupt request 7

B22 IRQ6 Out Interrupt request 6

B23 IRQ5 Out Interrupt request 5

B24 IRQ4 Out Interrupt request 4

B25 IRQ3 Out Interrupt request 3

B26 DAK2_L In DMA acknowledge 2

B27 TC In Terminal count

B28 BALE In Bus address latch enable

B29 +5 VDC +5 volt power

B30 OSC In System oscillator

B31 GND In/Out Ground

C1 SBHE_L In System bus high enable

Table D-9 ISA Bus Pin Definition (continued)

Pin Signal In/Out Description

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

D-14

C2 LA23 In Unlatched address, bit 23

C3 LA22 In Unlatched address, bit 22

C4 LA21 In Unlatched address, bit 21

C5 LA20 In Unlatched address, bit 20

C6 LA19 In Unlatched address, bit 19

C7 LA18 In Unlatched address, bit 18

C8 LA17 In Unlatched address, bit 17

C9 MRD_L In Memory write

C10 MWT_L In Memory read

C11 D8 In/Out Data bus, bit 8

C12 D9 In/Out Data bus, bit 9

C13 D10 In/Out Data bus, bit 10

C14 D11 In/Out Data bus, bit 11

C15 D12 In/Out Data bus, bit 12

C16 D13 In/Out Data bus, bit 13

C17 D14 In/Out Data bus, bit 14

C18 D15 In/Out Data bus, bit 15

D1 MCS16_L Out Memory chip select 16

D2 IO16_L Out I/O chip select 16

D3 IRQ10 Out Interrupt request 10

D4 IRQ11 Out Interrupt request 11

D5 IRQ12 Out Interrupt request 12

D6 IRQ15 Out Interrupt request 15

D7 IRQ14 Out Interrupt request 14

D8 DAK0_L In DMA acknowledge 0

D9 DRQ0 Out DMA request 0

D10 DAK5_L In DMA acknowledge 5

D11 DRQ5 Out DMA request 5

Table D-9 ISA Bus Pin Definition (continued)

Pin Signal In/Out Description

Hardware Interfaces

D-15

Table D-10 Optional External Power Pin Definition

D12 DAK6_L In DMA acknowledge 6

D13 DRQ6 Out DMA request 6

D14 DAK7_L In DMA acknowledge 7

D15 DRQ7 Out DMA request 7

D16 +5 VDC +5 volt power

D17 MASTER_L Out Primary

D18 GND In/Out Ground

Pin Signal In/Out Description

1 GND In/Out Ground

2 +5 VDC In +5 volt power

3 + 5VDC In +5 volt power

4 -12 VDC In -12 volt power

5 +12 VDC In +12 volt power

6 GND In/Out Ground

Table D-11 IP Module Logic Interface Connector

Pin Signal In/Out Description

1 GND Out Ground

2 CLK Out 8-MHz Clock

3 RESET_L Out Reset signal (active low)

4 D0 In/Out Data bit 0

5 D1 In/Out Data bit 1

6 D2 In/Out Data bit 2

Table D-9 ISA Bus Pin Definition (continued)

Pin Signal In/Out Description

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

D-16

7 D3 In/Out Data bit 3

8 D4 In/Out Data bit 4

9 D5 In/Out Data bit 5

10 D6 In/Out Data bit 6

11 D7 In/Out Data bit 7

12 D8 In/Out Data bit 8

13 D9 In/Out Data bit 9

14 D10 In/Out Data bit 10

15 D11 In/Out Data bit 11

16 D12 In/Out Data bit 12

17 D13 In/Out Data bit 13

18 D14 In/Out Data bit 14

19 D15 In/Out Data bit 15

20 BS0_L Out Byte select 0 (active low)

21 BS1_L Out Byte select 1 (active low)

22 -12 V Out +12 volt power

23 +12 V Out -12 volt power

24 +5 VDC Out +5 volt power

25 GND Out Ground

26 GND Out Ground

27 +5 VDC Out +5 volt power

28 R_W_L Out Data direction (read/write)

29 IDSEL_L Out IP module Identification

30 DMAREQ0_L In DMA request channel 0 (active low)

31 MEMSEL_L Out Memory select (active low)

32 DMAREQ1_L In DMA request channel 1 (active low)

33 INTSEL_L Out Read interrupt vector (active low)

34 DMACK_L Out DMA acknowledge (active low)

35 IOSEL_L Out I/O select (active low)

Table D-11 IP Module Logic Interface Connector (continued)

Pin Signal In/Out Description

Hardware Interfaces

D-17

36 RESERVED N/C Reserved for future applications

37 A1 Out Address line A1

38 DMAEND In/Out DMA termination (active low)

39 A2 Out Address line A2

40 ERROR_L In IP module error (active low)

41 A3 Out Address line A3

42 INTREQ0_L In Interrupt request 0 (active low)

43 A4 Out Address line A4

44 INTREQ1_L In Interrupt request 1 (active low)

45 A5 Out Address line A5

46 STROBE_L In/Out Function strobe (optional)

47 A6 Out Address line A6

48 ACK_L In Data acknowledge (active low)

49 RESERVED N/C Reserved for future applications

50 GND Out Ground

Table D-12 IP Module I/O Connector

Pin Signal I/O Description

1 RCV In UART receive

2XMT Out UART transmit

3 GND In/Out System ground

4 GND In/Out System ground

5 RF_XMIT_EN Out RF downlink power on

6 RF_RCV_EN Out RF uplink power on

7-50 Reserved N/C Reserved

Table D-11 IP Module Logic Interface Connector (continued)

Pin Signal In/Out Description

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

D-18

Figure D-3 Locations of LEDs on IT2020 Reader Logic Card

The reader-to-RF module interfaces to the reader logic card by nonformatted differen-

tial signals. In addition to these nonformatted signals, for the bistatic version there are

two communications lines (one receive and one transmit) to send commands to the RF

module in the form of frequency control, power attenuation, and check tag command.

The reader-RF module also connects to the transmit (bistatic downlink), receive

(bistatic uplink), transmit/receive (monostatic downlink/uplink), and check tag anten-

nas (both bistatic and monostatic) (see Figure D-4 and Figure D-5).

Table D-13 LEDs

Action Color Stretched

Board Selected by ISA Green No

Receive FIFO Data Present Red No

Transmit FIFO Data Present Yellow Yes

Tag Data Green Yes

Power Green No

Self-Test Fail Red No

Downlink Source On Yellow No

Uplink Source On Red No

Transmit Active Yellow Yes

Hardware Interfaces

D-19

Figure D-4 Bistatic RF Module Interface

Figure D-5 Monostatic RF Module Interface

Interface Connector

This connector is a circular MIL-C-26482 style commercial grade connector, 26-pin

jam nut receptacle. Figure D-6 shows the connector pin-out locations.

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

D-20

Figure D-6 Twenty-Six Pin Connector Showing Terminal Designators (RF

Module)

The cabling, should be Belden 9732 or equivalent, nine-pair, twisted-shielded pair,

maximum length 152 m (500 ft).

Power Connector

This connector is a 3-pin circular plug.

Reader-to-RF Module Communications

The communication channel provides bi-directional communication between the

reader logic card and the RF module. This channel is a differential I/O that provides

two-way communication via half-duplex channels. Differential transmission provides

signal integrity over long cable distances and in electrically noisy environments. This

channel supports communication rates up to 19.2 Kbaud, with cable lengths up to 152

m (500 ft).

The command/response communication channel is implemented in a microchip

PIC16-series microcontroller, with the protocol executed in software that provides

flexibility for future applications. Frequency and power attenuation settings are stored

by the microcontroller in nonvolatile memory. A programming interface is provided

so that the new software can be downloaded into the PIC16 device.

The reader-to-RF module interface performs the following functions:

•Receives two discrete, differential input signals from the reader logic card for RF

power on/off control.

Hardware Interfaces

D-21

•Receives a differential input from the reader logic card and outputs a single-ended

signal to the RF downlink and uplink functions for control of the output stage

power. RF power on/off is also controlled via a microcontroller output under com-

mand from the reader logic card.

•Provides control output and status inputs for the RF uplink function — Initializes

the RF phase locked loop (PLL) frequency. Controls the RF output power attenu-

ation. Controls RF power on/off with a discrete differential input and reader com-

mand.

•Provides control output and status inputs for the RF downlink function — Initial-

izes the RF PLL frequency as in the RF uplink. Controls the RF output power

attenuation as in the RF uplink. Stores settings as in the RF uplink. Controls RF

power on/off with a discrete differential input and reader command as in the RF

uplink.

•Provides control for the check tag — The check tag simulates an automatic vehi-

cle identification (AVI) transaction thus providing a means for the reader to check

the AVI operation. The check tag, activated on command by the lane controller,

provides a test of the antenna, RF source, preamplifier, encoder/ decoder, micro-

processor, communications port, and I/O control.

The reader controls check tag operation with an enable logic signal, which

provides the check tag to communicate with the reader, as a normal tag. The check

tag may be set to operate automatically at a periodic rate, or under command from

the lane controller through the reader.

RF Module Interface Connector

Table D-14 lists the pin-socket signals and descriptions for the IT2611 RF Module-to-

IT2020 Reader Logic Card connector.

The cable shields are not connected at the IT2611 RF Module. Tie all the shielded

bare wires together and connect them to a good ground at the IT2020 Reader Logic

Card end.

Table D-14 RF Module-to-Reader Logic Card Interface Connector

IT2611 RF

Module Socket

IT2020 Reader

Logic Card

DB-25 Pin Signal In/Out Description

A 1 IF_A+_I2000 In Uplink tag data, channel A+

T 2 IF_A+_ATA In Uplink tag data, channel A+

D 3 IF_B- In Uplink tag data, channel B-

E 4 IF_C+ In Uplink tag data, channel C+

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

D-22

Table D-15 shows the IT2611 RF Module power connector pin designations.

V 5 IF_B+_ATA In Uplink tag data, channel B+

H 6 MOD- Out Downlink modulation data, (-)

Z 7 IF_C+_ATA In Uplink tag data, channel C+

K 8 CTL_XMT- Out Control interface transmit, (-)

L 9 CTL_RCV+ In/Out Control interface receive, (+)

10 Reserved N/C Not connected

N 11 UL_OFF- Out RF uplink power on/off, (-)

P 12 DL_OFF+ Out RF downlink power on/off, (+)

13 Reserved N/C Not connected

B 14 IF_A- In Uplink tag data, channel A-

C 15 IF_B+ In Uplink tag data, channel B+

U 16 IF_A-_ATA In Uplink tag data, channel A-

F 17 IF_C- In Uplink tag data, channel C-

G 18 MOD+ Out Downlink modulation data, (-)

W 19 IF_B-_ATA In Uplink tag data, channel B-

J 20 CTL_XMT+ In/Out Control interface transmit, (+)

a 21 IF_C-_ATA In Uplink tag data, channel C-

Y 22 CTL_RCV- In Control interface receive, (-)

M 23 UL_OFF+ Out RF uplink power on/off, (+)

24 Reserved N/C Not connected

R 25 DL_OFF- Out RF downlink power on/off, (-)

Table D-14 RF Module-to-Reader Logic Card Interface Connector (continued)

IT2611 RF

Module Socket

IT2020 Reader

Logic Card

DB-25 Pin Signal In/Out Description

Hardware Interfaces

D-23

Table D-15 RF Module Power

Table D-16 shows the IT2611 RF Module-to-antenna connectors for bistatic operation

and Table D-17 shows the connectors for monostatic operation.

IT2410 Tag Programmer Hardware Interconnection

The IT2410 Tag Programmer requires only a small DC power supply and a DB-9

serial interface cable. Cabling for the two interconnections requires proper shielding

at both ends to meet Part 15 of FCC emission requirements.

The serial interface is RS-232 compatible. A null-modem adapter is required to con-

nect the programmer to RS-232 serial interfaces from most computers configured as

data terminal equipment (DTE). No hardware handshaking is employed; however,

handshaking is accomplished by firmware protocol as described in the interface defi-

nitions. Pin-outs of the RS-232 serial interface are shown in Table D-18.

Pin Description

A 19- to 28-VAC or

16- to 28-VDC

C 19- to 28 VAC Return or

16- to 28-VDC Return

B Not connected

Table D-16 RF Module-Antenna Connectors for Bistatic Operation

Connector Description Type

J1 RF uplink (receive) antenna N Socket

J2 RF downlink (transmit)

antenna N Socket

J3 Check tag antenna N Socket

Table D-17 RF Module-Antenna Connectors for Monostatic Operation

Connector Description Type

J1 RF uplink/downlink (receive/

transmit) antenna N Socket

J3 Check tag antenna N Socket

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

D-24

Table D-18 IT2410 Tag Programmer Interconnection

The power is supplied to the programmer through a DIN-9 connector from a 40-W

power switching supply provided with each unit. Figure D-7 shows the connector on

the programmer.

Figure D-7 IT2410 Tag Programmer Power Connections

The power supply used with the programmer provides additional shielding to meet the

Class B, Part 15 FCC requirements. The cable used for the modification is an 18-

AWG, shielded, 2-conductor cable.

Pin Name Type Description

1RSDN/A

a. Not internally connected on the IT2410 Tag Programmer

Received line signal detect

2 TxD Output Transmit data

3 RxD Input Receive data

4 DTR Outputb

b. Connected, but not currently used in IT2410 Tag Pro-

grammer firmware

Data terminal ready

5 GND Ground Signal ground

6DSRN/A

aData set ready

7 RTS OutputbRequest to send

8 CTS InputbClear to send

9 RI N/A Ring indicator

Connector Pin-outs

E-3

Appendix E

Connector Pin-outs

This appendix provides connector pin-out information for the IT2020

Reader Logic Card and the IT2611 RF Module.

IT2020 Reader Logic Card

This section provides pin-outs for the interface connectors on the IT2020 Reader

Logic Card.

Tag Data/Control

The communication path between the IT2020 Reader Logic Card and the IT2611 RF

Module runs through the input/output (I/O) module that is connected to IP slot A. The

I/O module connects to the RF module through a ribbon cable terminating at a DB-25

connector mounted on the RF module interface bracket. The tag data/control cable

from the RF module connects to this DB-25 connector.

Table E-1 shows the pinout of the DB-25 connector. Signal I/O is with respect to the

reader logic card.

Table E-1 Tag Data/Control Interface Connector

Pin Name Type Description

1 IF_A+ Input IT2200 tag data, channel A+

2 Unused N/A N/A

3 IF_B- Input IT2200 tag data, channel B-

4 IF_C+ Input IT2200 tag data, channel C+

5 Unused N/A N/A

6 MOD- Output Downlink modulation data, negative

7 Unused N/A N/A

8 CTL_RCV- Input Communication with RF module

9 CTL_XMT+ Output Communication with RF module

10 Unused N/A N/A

11 UL_RF_OFF- Output RF uplink power on/off, negative

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

E-4

TDM

The TDM (time division multiplexing) connector is located on the reader logic card

RF module interface bracket. The connector is a DB-9. The signals are RS-485. Two

identical pairs are provided for ease of wiring in the field.

Table E-2 shows the pinout of the TDM connector.

12 DL_RF_OFF+ Output RF downlink power on/off, positive

13 Unused N/A N/A

14 IF_A- Input IT2200 tag data, channel A-

15 IF_B+ Input IT2200 tag data, channel B+

16 Unused N/A N/A

17 IF_C- Input IT2200 tag data, channel C-

18 MOD+ Output Downlink modulation data, negative

19 Unused N/A N/A

20 CTL_RCV+ Input/output Communication with RF module

21 Unused N/A N/A

22 CTL_XMT- Output Communication with RF module

23 UL_RF_OFF+ Output RF uplink power on/off, positive

24 Unused N/A N/A

25 DL_RF_OFF- Output RF downlink power on/off, negative

Table E-2 TDM Connector

Pin Name Type Description

1 N/A N/A No connection

2 TDM- Input/output TDM synchronization negative

3 TDM+ Input/output TDM synchronization positive

4 N/A N/A No connection

5 N/A N/A No connection

6 N/A N/A No connection

Table E-1 Tag Data/Control Interface Connector (continued)

Pin Name Type Description

Connector Pin-outs

E-5

ISA Bus

The IT2020’s edge connector has two sets of contact fingers on each side of the board.

Pins A1 through A31 and C1 through C18 are on the component side of the card. Pins

B1 through B31 and D1 through D18 are on the other side. For all pin sets, the lower

numbers are toward the bracket end of the card.

Table E-3 shows the pinout of the ISA bus connector. Signal I/O is with respect to the

reader logic card.

7 TDM+ Input/output TDM synchronization positive

8 TDM- Input/output TDM synchronization negative

9 N/A N/A No connection

Table E-3 ISA Bus Pin Definition

Pin Name Type Description

A1 IOCHK_L Output I/O channel check

A2 D7 Input/output Data bus, bit 7

A3 D6 Input/output Data bus, bit 6

A4 D5 Input/output Data bus, bit 5

A5 D4 Input/output Data bus, bit 4

A6 D3 Input/output Data bus, bit 3

A7 D2 Input/output Data bus, bit 2

A8 D1 Input/output Data bus, bit 1

A9 D0 Input/output Data bus, bit 0

A10 CHRDY Output I/O channel ready

A11 AEN Input Address enable

A12 SA19 Input System address, bit 19

A13 SA18 Input System address, bit 18

A14 SA17 Input System address, bit 17

A15 SA16 Input System address, bit 16

A16 SA15 Input System address, bit 15

Table E-2 TDM Connector (continued)

Pin Name Type Description

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

E-6

A17 SA14 Input System address, bit 14

A18 SA13 Input System address, bit 13

A19 SA12 Input System address, bit 12

A20 SA11 Input System address, bit 11

A21 SA10 Input System address, bit 10

A22 SA9 Input System address, bit 9

A23 SA8 Input System address, bit 8

A24 SA7 Input System address, bit 7

A25 SA6 Input System address, bit 6

A26 SA5 Input System address, bit 5

A27 SA4 Input System address, bit 4

A28 SA3 Input System address, bit 3

A29 SA2 Input System address, bit 2

A30 SA1 Input System address, bit 1

A31 SA0 Input System address, bit 0

B1 GND Ground

B2 RESDRV Input Reset driver

B2 +5 VDC +5 volt power

B4 IRQ9 Output Interrupt request 9

B5 -5 VDC -5 V power

B6 DRQ2 Output DMA request 2

B7 -12 VDC -12 V power

B8 NOWS_L Output No wait state

B9 +12 VDC +12 V power

B10 GND Ground

B11 SMWT_L Input System memory write

B12 SMRD_L Input System memory read

B13 IOW_L Input I/O write

Table E-3 ISA Bus Pin Definition (continued)

Pin Name Type Description

Connector Pin-outs

E-7

B14 IOR_L Input I/O read

B15 DAK3_L Input DMA acknowledge 3

B16 DRQ3 Output DMA request 3

B17 DAK1_L Input DMA acknowledge 1

B18 DRQ1 Output DMA request 1

B19 REFRESH_L Input/output DRAM refresh control

B20 BCLK Input Bus clock

B21 IRQ7 Output Interrupt request 7

B22 IRQ6 Output Interrupt request 6

B23 IRQ5 Output Interrupt request 5

B24 IRQ4 Output Interrupt request 4

B25 IRQ3 Output Interrupt request 3

B26 DAK2_L Input DMA acknowledge 2

B27 TC Input Terminal count

B28 BALE Input Bus address latch enable

B29 +5 VDC +5 volt power

B30 OSC Input System oscillator

B31 GND Ground

C1 SBHE_L Input System bus high enable

C2 LA23 Input Unlatched address, bit 23

C3 LA22 Input Unlatched address, bit 22

C4 LA21 Input Unlatched address, bit 21

C5 LA20 Input Unlatched address, bit 20

C6 LA19 Input Unlatched address, bit 19

C7 LA18 Input Unlatched address, bit 18

C8 LA17 Input Unlatched address, bit 17

C9 MRD_L Input Memory write

C10 MWT_L Input Memory read

Table E-3 ISA Bus Pin Definition (continued)

Pin Name Type Description

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

E-8

C11 D8 Input/output Data bus, bit 8

C12 D9 Input/output Data bus, bit 9

C13 D10 Input/output Data bus, bit 10

C14 D11 Input/output Data bus, bit 11

C15 D12 Input/output Data bus, bit 12

C16 D13 Input/output Data bus, bit 13

C17 D14 Input/output Data bus, bit 14

C18 D15 Input/output Data bus, bit 15

D1 MCS16_L Output Memory chip select 16

D2 IO16_L Output I/O chip select 16

D3 IRQ10 Output Interrupt request 10

D4 IRQ11 Output Interrupt request 11

D5 IRQ12 Output Interrupt request 12

D6 IRQ15 Output Interrupt request 15

D7 IRQ14 Output Interrupt request 14

D8 DAK0_L Input DMA acknowledge 0

D9 DRQ0 Output DMA request 0

D10 DAK5_L Input DMA acknowledge 5

D11 DRQ5 Output DMA request 5

D12 DAK6_L Input DMA acknowledge 6

D13 DRQ6 Output DMA request 6

D14 DAK7_L Input DMA acknowledge 7

D15 DRQ7 Output DMA request 7

D16 +5 VDC +5 volt power

D17 MASTER_L Output Primary

D18 GND Ground

Table E-3 ISA Bus Pin Definition (continued)

Pin Name Type Description

Connector Pin-outs

E-9

IP Module Logic Interface

Table E-4 shows the pinout of the IP module logic interface connector. Signal I/O is

with respect to the reader logic card.

Table E-4 IP Module Logic Interface Connector

Pin Name Type Description

1 GND Output Ground

2 CLK Output 8-MHz clock

3 RESET_L Output Reset signal (active low)

4 D0 Input/output Data bit 0

5 D1 Input/output Data bit 1

6 D2 Input/output Data bit 2

7 D3 Input/output Data bit 3

8 D4 Input/output Data bit 4

9 D5 Input/output Data bit 5

10 D6 Input/output Data bit 6

11 D7 Input/output Data bit 7

12 D8 Input/output Data bit 8

13 D9 Input/output Data bit 9

14 D10 Input/output Data bit 10

15 D11 Input/output Data bit 11

16 D12 Input/output Data bit 12

17 D13 Input/output Data bit 13

18 D14 Input/output Data bit 14

19 D15 Input/output Data bit 15

20 BS0_L Output Byte select 0 (active low)

21 BS1_L Output Byte select 1 (active low)

22 -12 V Output -12 volt power

23 +12 V Output +12 volt power

24 +5 VDC Output +5 volt power

25 GND Output Ground

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

E-10

26 GND Output Ground

27 +5 VDC Output +5 volt power

28 R_W_L Output Data direction (read/write)

29 IDSEL_L Output IP Module Identification

30 DMAREQ0_L Input DMA request channel 0 (active

low)

31 MEMSEL_L Output Memory Select (active low)

32 DMAREQ1_L Input DMA request channel 1 (active

low)

33 INTSEL_L Output Read Interrupt vector (active low)

34 DMACK_L Output DMA Acknowledge (active low)

35 IOSEL_L Output I/O select (active low)

36 RESERVED N/A Reserved for future applications

37 A1 Output Address line A1

38 DMAEND Input/output DMA Termination (active low)

39 A2 Output Address line A2

40 ERROR_L Input IP module error (active low)

41 A3 Output Address line A3

42 INTREQ0_L Input Interrupt request 0 (active low)

43 A4 Output Address line A4

44 INTREQ1_L Input Interrupt request 1 (active low)

45 A5 Output Address line A5

46 STROBE_L Input/output Function Strobe (optional)

47 A6 Output Address line A6

48 ACK_L Input Data Acknowledge (active low)

49 RESERVED N/A Reserved for future applications

50 GND Output Ground

Table E-4 IP Module Logic Interface Connector (continued)

Pin Name Type Description

Connector Pin-outs

E-11

IP Module I/O Connector

Table E-5 shows the pinout of the IP module I/O connector. Signal I/O is with respect

to the reader logic card.

Table E-5 IP Module I/O Connector

Pin Slot A (Input/

output) Slot B (Encode/

Decode) Slot C

(Spare) Description

1 IPRXD Unused Unused Responses from RF module

2 B_IP_TXD Unused Unused Commands to RF module

3 GND GND GND Ground

4 GND GND GND Ground

5 DL_RF_ON High to turn downlink power on

BRF_XMITEN Buffered Port C, pin 2 of 360

Unused These two are wired in Flex10K

6 UL_RF_ON High to turn uplink power on

BRF_RCVEN Buffered Port C, pin 8 of 360

Unused These two are wired in Flex10K

7 Unused Unused Unused

8 IT2K_IF_A IT2K_IF_A Unused IT2200 IF channel A from RF

9 IT2K_IF_B IT2K_IF_B Unused IT2200 IF channel B from RF

10 IT2K_IF_C IT2K_IF_C Unused IT2200 IF channel C from RF

11 UNUSED DL_RF_ON Unused High to turn downlink power on

12 UNUSED UL_RF_ON Unused High to turn uplink power on

13 IT2K_MOD IT2K_MOD Unused IT2200 MOD from Flex10K

14 Unused XMTACT_PLS_L Unused Mod out has gone active

15 A_SPARE4 B_SPARE4 C_SPARE4 Extra Via’s added to board for

future upgrade

16 A_SPARE3 B_SPARE3 C_SPARE3

17 A_SPARE2 B_SPARE2 C_SPARE2

18 A_SPARE1 B_SPARE1 C_SPARE1

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

E-12

19 IP_PARA_6 IP_PARA_6 IP_PARA_6 Route extra signals between all

expansion cards in anticipation

of future possibilities20 IP_PARA_5 IP_PARA_5 IP_PARA_5

21 IP_PARA_4 IP_PARA_4 IP_PARA_4

22 IP_PARA_3 IP_PARA_3 IP_PARA_3

23 Unused Unused Unused

24 IP_PARA_2 IP_PARA_2 IP_PARA_2 Route extra signals between all

cards for future possibilities

25 IP_PARA_1 IP_PARA_1 IP_PARA_1

26 Reserved N/A Reserved

27 Reserved N/A Reserved

28 Reserved N/A Reserved

29 Reserved N/A Reserved N/A

30 Reserved N/A Reserved N/A

31 TDM_SYNC_OUT TDM_SYNC_OUT Unused TDM output sync pulse

32 TDM_SYNC_IN TDM_SYNC_IN Unused TDM input sync pulse

33 TDM_SYNC_EN TDM_SYNC_EN Unused TDM enable active high

34 Unused Unused Unused

35 Unused TAGDPLS_L Unused Valid header detected

36 SWSIG7 SWSIG7 SWSIG7 These signals have no defined

functionality at this time. They

are run to the IP cards to give

software future control signals

37 SWSIG6 SWSIG6 SWSIG6

38 SWSIG5 SWSIG5 SWSIG5

39 SWSIG4 SWSIG4 SWSIG4

40 IP_A_PRES Unused Unused HI = I/O PWA installed properly

41 Unused IP_B_PRES Unused HI = ENC/DEC installed prop.

42 Unused Unused IP_C_PRES HI = Future Amtech board inst.

43 Unused IP_10KSTAT Unused LO = Flex10K not configured

44 Unused IP_10KCONF Unused LO to HI transition starts

configuration

45 Unused IP_10KDONE Unused HI = ready for normal operation

Table E-5 IP Module I/O Connector (continued)

Pin Slot A (Input/

output) Slot B (Encode/

Decode) Slot C

(Spare) Description

Connector Pin-outs

E-13

Auxiliary Power

Table E-6 shows the pinout of the auxiliary power connector. Signal I/O is with

respect to the reader logic card.

46 Unused CONT_CW_INP Unused Input - HI to turn CW on

47 Unused Unused Unused N/A

48 Unused Unused Unused N/A

49 Unused Unused Unused N/A

50 Unused Unused Unused N/A

Table E-5 IP Module I/O Connector (continued)

Pin Slot A (Input/

output) Slot B (Encode/

Decode) Slot C

(Spare) Description

Table E-6 Auxiliary Power Connector

Pin Name Type Description

1 GND Input/

output Ground

2 +5 VDC Input +5 V power

3 +5 VDC Input +5 V power

4 -12 VDC Input -12 V power

5 +12 VDC Input +12 V power

6 GND Input/

output Ground

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

E-14

BDM

The BDM (background debugger mode) connector is a 10-pin, 0.100 center, dual row

header with a 2 x 5 configuration.

Table E-7 shows the pinout of the BDM connector. Signal I/O is with respect to the

reader logic card.

Table E-7 BDM Connector

Pin Name Type Description

1 DS_L Input/

output Data strobe

2 BERR_L Input/

output Bus error

3 GND Input/

output Ground

4 BKPT/DSCLK Input Development serial clock

5 GND Input/

output Ground

6 FREEZE Output Breakpoint acknowledge

7 RESET_L Input/

output Hard system reset

8 IFETCH/DSI Input Development serial input

9 VCC Input/

output +5 VDC power

10 IPIPE0/DSO Output Development serial output

Connector Pin-outs

E-15

General Purpose I/O

Table E-8 shows the pinout of the general purpose I/O connector. Signal I/O is with

respect to the reader logic card.

Table E-8 General Purpose I/O Connector

Pin Name Type Description

1 BIN1 Input CMOS level status input

2 BIN2 Input CMOS level status input

3 BIN3 Input CMOS level status input

4 BIN4 Input CMOS level status input

5 BOUT4 Output CMOS drive output

6 BOUT3 Output CMOS drive output

7 BOUT2 Output CMOS drive output

8 BOUT1 Output CMOS drive output

9 VCC Output +5 VDC power

10 GND Output Ground

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

E-16

HW Diagnostics Port

Table E-9 shows the pinout of the HW diagnostics port connector. Signal I/O is with

respect to the reader logic card.

Table E-9 Hardware Diagnostics Port Connector

Pin Name Type Description

1 HDP_EN_L Input Enables output buffers

2 GND Output Ground

3 CONT_CW_INP Input Enable CW mode

4 VCC Output +5 VDC power

5 SWSIG0 Output SW controlled debug bit

6 SWSIG1 Output SW controlled debug bit

7 SWSIG2 Output SW controlled debug bit

8 SWSIG3 Output SW controlled debug bit

9 SWSIG4 Output SW controlled debug bit

10 SWSIG5 Output SW controlled debug bit

11 SWSIG6 Output SW controlled debug bit

12 SWSIG7 Output SW controlled debug bit

13 B_HDRDET_L Output Buffered tag data present

14 B_MOD Output Modulation - IT2000

15 B_DECINT_L Output Decoder interrupt

16 B_TDMINT_L Output TDM interrupt

171 B_MRESET_L Output 360 reset from any source

18 B_ISARES_L Output ISA command or HW reset

19 B_ISAIRQ_H Output IRQ to host

20 B_IRQISA_L Output IRQ from host

21 Reserved N/A Reserved

22 Reserved N/A N/A

232 B_IF_A Output IF Data A - IT2200

24 B_IF_B Output IF Data B - IT2200

25 B_IF_C Output IF Data C - IT2200

Connector Pin-outs

E-17

RS-232

The RS-232 connector is a standard DB-9 plug. The pinout of this connector is such

that it does not need a null modem cable to connect to a PC serial port.

Table E-10 shows the pinout of the DB-25 connector. Signal I/O is with respect to the

reader logic card.

26 Reserved N/A N/A

27 Reserved N/A N/A

28 Reserved N/A N/A

29 BHW_IP_RXD Output Buffered RF module receive

30 BHW_IP_TXD Output Buffered RF module transmit

31 VCC Output +5 VDC power

32 VCC Output +5 VDC power

33 GND Output Ground

34 GND Output Ground

Table E-10 RS-232 Connector

Pin Name Type Description

1 RSD N/A Received line signal detect

2 TXD Output Transmit data

3 RXD Input Receive data

4 DTR N/A Data terminal ready

5 GND Input/

output Ground

6 DSR N/A Data set ready

7 CTS Input Clear to send

8 RTS Output Request to send

9 RI N/A Ring indicator

Table E-9 Hardware Diagnostics Port Connector (continued)

Pin Name Type Description

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

E-18

IT2611 RF Module

Table E-11 lists the pin-socket names and descriptions for the IT2611 RF Module-to-

IT2020 Reader Logic Card connector.

Table E-11 RF Module-to-Reader Logic Card Interface Connector

IT2611 RF Module

Socket IT2020 Reader Logic

Card DB-25 Pin Name Type Description

A 1 IF_A+ Input Uplink tag data, channel A+

T 2 Reserved N/A

D 3 IF_B- Input Uplink tag data, channel B-

E 4 IF_C+ Input Uplink tag data, channel C+

V 5 Reserved N/A

H 6 MOD- Output Downlink modulation data, (-)

Z 7 Reserved N/A

K 8 CTL_XMT- Output Control interface transmit, (-)

L 9 CTL_RCV+ Input/

output Control interface receive, (+)

10 Reserved N/A

N 11 UL_OFF- Output RF uplink power on/off, (-)

P 12 DL_OFF+ Output RF downlink power on/off,

(+)

13 Reserved N/A

B 14 IF_A- Input Uplink tag data, channel A-

C 15 IF_B+ Input Uplink tag data, channel B+

U 16 Reserved N/A

F 17 IF_C- Input Uplink tag data, channel C-

G 18 MOD+ Output Downlink modulation data, (-)

W 19 Reserved N/A

J 20 CTL_XMT+ Input/

output Control interface transmit, (+)

a 21 Reserved N/A

Y 22 CTL_RCV- Input Control interface receive, (-)

M 23 UL_OFF+ Output RF uplink power on/off, (+)

24 Reserved N/A

R 25 DL_OFF- Output RF downlink power on/off, (-)

Connector Pin-outs

E-19

Table E-12 shows the IT2611 RF Module power connector pin designations.

Table E-13 shows the IT2611 RF Module-to-antenna connectors.

Table E-12 RF Module Power

Pin Description

A 19- to 28-VAC or

16- to 28-VDC

C 19- to 28 VAC Return or

16- to 28-VDC Return

BN/A

Table E-13 RF Module-Antenna Connectors

Connector Type Description

J1 N Socket RF uplink (receive) antenna

J2 N Socket RF downlink (transmit) antenna

J3 N Socket Check tag antenna

IT2200 Reader System with Multimode Capability Installation & Maintenance/Service Guide

E-20

TransCore 2611SS IT2611 RF Transmitter User Manual install

TransCore IT2611 RF Transmitter install

NEW Users Manual

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