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TransCore AR2200 User Manual

Rf module
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AR2200 RF Module
User Guide
TransCore Inc.
19111 Dallas Parkway, Suite 300
Dallas, Texas 75287-3106
March 2003
P/N 411052-003

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Summary of Contents for TransCore AR2200

  • Page 1 AR2200 RF Module User Guide TransCore Inc. 19111 Dallas Parkway, Suite 300 Dallas, Texas 75287-3106 March 2003 P/N 411052-003...
  • Page 3 TC IP, Ltd. © 2003 TC IP, Ltd. All rights reserved. TRANSCORE is a trademark and Amtech is a registered trademark of TC IP, Ltd. and is used under license. All other trademarks listed are the property of their respective owners.
  • Page 4 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)
  • Page 5 Contents...

  • Page 7: Table Of Contents

    3 Installing the AR2200 RF Module AR2200 RF Module Installation Options ....... . . 3-3 Differences in Installation Options .
  • Page 8 AR2200 RF Module User Guide Terminal Connections ..........3-5 Grounding the RF Module .
  • Page 9 Table 1-1 AR2200 RF Module User Guide Information ....... 1-3...
  • Page 10 AR2200 RF Module User Guide...

  • Page 11: Before You Begin

    Before You Begin...

  • Page 13: Purpose

    Describes the purpose, intended audience, guide topics, related Chapter 1–Before You documentation, and document conventions. Begin Provides an overview of the AR2200 RF Module’s features, options, and Chapter 2–AR2200 RF accessories. Module Overview Provides detailed installation instructions for installing a stand-alone RF Chapter 3–Installing the...

  • Page 14: Typographical Conventions

    AR2200 RF Module User Guide Typographical Conventions Table 1-2 lists the conventions used in this manual: Table 1-2 Typographical Conventions Convention Indication This procedure might cause harm to the equipment and/or the user. Concerns about a procedure. Code, including keywords and variables within text and as...

  • Page 15: Health Limits

    The RF power density generated by Amtech equipment was calculated using a max- imum antenna gain of 14 dBi that is equivalent to that typically used in an AR2200 installation. The antenna gain should not exceed 14 dBi. The antennas used for this transmitter must not be collocated or operated in conjunction with any other antenna or transmit- ter.
  • Page 16 AR2200 RF Module User Guide...
  • Page 17 Overview of AR2200 RF Module...

  • Page 19: Ar2200 Rf Module Overview

    Overview The AR2200 RF Module, hereafter referred to as the RF module, is a dual-output radio transmitter/receiver that, on command from a TransCore reader, generates a radio frequency (RF) signal in the 865- to 930-MHz radio frequency range, over five bands, and delivers the signal to the antenna for broadcast.

  • Page 20: Figure 2-1 Ar2200 Rf Module I/O Interface

    The RF module generates the RF power necessary to read an TransCore tag. It also contains receiver and preamplifier circuitry to preprocess the tag signal returned through the antenna. Once connected to the antenna and reader and tuned, the RF module should require no further mechanical adjustment by the user.

  • Page 21: Features

    (I/O) interface. Caution Do not attempt to increase the RF signal strength. Contact TransCore if you think that you need to adjust the RF signal strength. For ease of installation, the RF module is connected to the reader by cable attached to a removable 21-terminal plug.

  • Page 22: Preamplifier Line Driver Output

    AR2200 RF Module User Guide Table 2-1 AR2200 RF Module Options and Operating Frequency Bands RF Module Option Operating Frequency Band (MHz) 865.0 to 869.5 869.501 to 892.0 892.001 to 908.5 908.501 to 917.0 917.001 to 930.0 The primary manufactured frequency for the RF module is 912 MHz. For multiple RF modules at one site, TransCore recommends using separate frequencies.

  • Page 23: Output Power

    Five-watt 1- to 24-dB attenuators with N-type connectors are available from TransCore. Other attenuators may be available for specialized applications; contact TransCore for information. Power output can be reduced by up to 7 dB using the RF module’s RF power output select feature.
  • Page 24 AR2200 RF Module User Guide...

  • Page 25: Installing The Ar2200 Rf Module

    Installing the AR2200 RF Module...

  • Page 27: Ar2200 Rf Module Installation Options

    RF module. AI1200 Reader Power Supply Upgrade If you are using the RF module with an AI1200 Reader with TransCore standard AC power supply (P/N 47049-01, KEPCO ERX 15-4), you must replace that power sup- ply with a new AC standard power assembly that incorporates a power supply with a higher current rating.

  • Page 28: Required Wiring

    AR2200 RF Module User Guide operating one antenna, are connected to one reader with the first RF module connected to the reader through terminals identified as 0 and the second RF module connected to the reader through terminals identified as 1.

  • Page 29: Required Equipment

    Installing the AR2200 RF Module Required Equipment • Voltmeter • Oscilloscope, 100 MHz (for monitoring intermediate frequency [IF] signals and discriminate signals) • Data terminal or computer • Phillips and flat-blade screwdrivers • N-type 50-ohm load (placed at the antenna port for testing) •...

  • Page 30: Grounding The Rf Module

    Grounding the RF Module The CHASSIS terminal is electrically connected to case ground at the factory. Case ground must be connected to earth ground. TransCore does not recommend that a conduit connection be used as a grounding point. Ground points must make metal-to- metal connections.

  • Page 31: Terminal Designations

    Installing the AR2200 RF Module Terminal Designations The jack and plug terminals are designated for use as listed in Table 3-2. Table 3-2 Jack and Plug Terminal Designations Designation Purpose Chassis ground terminal SCTRTNI System check tag DC return input...

  • Page 32: Normal Mode Connections

    AR2200 RF Module User Guide Normal Mode Connections In normal mode, only one RF module (with one or two antennas) is connected to a reader. Figure 3-3 shows the connections used for normal mode. Figure 3-3 Normal Mode Connections...

  • Page 33: Table 3-3 Connecting Wires Between The Rf Module And The Reader Interface

    Installing the AR2200 RF Module To install your RF module for operation in normal mode, follow these steps: Turn off power to the RF module and the reader. Connect wires between the RF module and the reader interface as shown in Table 3-3.

  • Page 34: Figure 3-4 Antenna Output Port Locations

    AR2200 RF Module User Guide Terminate the two antennas output ports (located on the side of the RF subassembly below the internal ribbon cable) with a cable that is connected to an antenna or a 50-ohm, N-type, male load. The antenna output ports must be terminated before turning on power to the reader and RF module.

  • Page 35: Compatibility Mode Connections

    Installing the AR2200 RF Module Table 3-5 Connecting the Check Tag Cable RF Module Terminal Check Tag Line AI1301 for AI12XX +12SCTO +12 V DC via panel terminal board Black SCTRTNO +12 V RET (-) via panel terminal board White...

  • Page 36: Figure 3-5 Compatibility Mode Connections

    AR2200 RF Module User Guide Figure 3-5 Compatibility Mode Connections To install your RF module in compatibility mode, follow these steps: Turn off power to the RF module and the reader. Connect wires between the RF modules and the reader interface shown in Table 3-7.

  • Page 37: Table 3-7 Connecting Wires Between The Rf Modules And The Reader Interface

    Installing the AR2200 RF Module Table 3-7 Connecting Wires Between the RF Modules and the Reader Interface AI1301 RF Interface RF Module Signal AI12XX Terminal Board Terminal RFGND RFPWR SCTRTNI SCTCTLI RFCTLO 40 (RF module 0 10 (RF module 0 only)

  • Page 38: Table 3-9 Connecting The System Check Tag Cables

    AR2200 RF Module User Guide For AI1301 readers connect the RF module RFGND and RFPWR terminals to the +12 V RET (-) and +12 V DC terminals, respectively, of the panel terminal strip. Terminate the two antenna output ports (located on the side of the RF subassembly below the internal ribbon cable) with a cable that is connected to an antenna or a 50-ohm, N-type, male load as shown below.

  • Page 39: Table 3-10 Maximum Cable Lengths For Check Tag Cable

    Installing the AR2200 RF Module Table 3-10 Maximum Cable Lengths for Check Tag Cable Cable Type (or Application Maximum Length equivalent) Check tag cable Belden 9773 100 ft (30.5 m) Note: Voltage standing wave ratio (VSWR) measurements at the antenna must be made.
  • Page 40 AR2200 RF Module User Guide 3-16...

  • Page 41: Testing The Rf Module

    Testing the RF Module...

  • Page 43: Figure 4-1 Rf Board Test Points

    Chapter 4 Testing the RF Module This chapter provides instructions for testing the installed RF module. (Need required equipment, tools section here.) After connecting terminals between the RF module and the reader, you should test the RF module. You will need an oscilloscope and a data terminal or computer connected to the AI1200 or AI1301 reader.

  • Page 44: Setting Voltage

    AR2200 RF Module User Guide The test points are defined in Table 4-1. Table 4-1 Test Point Definition Test Point Purpose 3, 4 (CHA1, CHA2) RF module analog signals A 5, 8 (CHB1, CHB2) RF module analog signals B 7, 6 (CHC1, CHC2)

  • Page 45: Indicator Lights

    Indicator Lights...

  • Page 47: Figure 5-1 Rf Module Led Indicators

    Chapter 5 Indicator Lights This chapter describes the RF module’s indicator lights. The RF module has four LED indicators on the RF interface board, labeled as shown in Figure 5-1. Figure 5-1 RF Module LED Indicators Each indicator and its message are described in Table 5-1. Table 5-1 LED Indicators and Messages Indicator Function...
  • Page 48 AR2200 RF Module User Guide...

  • Page 49: Adjusting Rf Power

    Adjusting RF Power...

  • Page 51: Figure 6-1 Rf Power Select Dipswitch Locations

    Chapter 6 Adjusting RF Power This chapter explains how to adjust the RF power, if needed. RF power may be independently reduced, when necessary, for each antenna port by selecting the desired output RF power level setting for the RF PWR Select dipswitches (SW2 or SW1) for Antenna 1 or Antenna 0.

  • Page 52: Table 6-1 Rf Power Output Select Dipswitch Settings

    AR2200 RF Module User Guide Independent RF power output level adjustments, for each antenna port, from +25.5 dBm to +32.5 dBm in 1-dB steps are specified in Table 6-1. Table 6-1 RF Power Output Select Dipswitch Settings RF PWR SELECT...

  • Page 53: Range Modulation Sensitivity Adjustment

    Range Modulation Sensitivity Adjustment...

  • Page 55: Figure 7-1 Range Modulation Sensitivity Potentiometers

    Chapter 7 Range Modulation Sensitivity Adjustment This chapter explains how to adjust the AR2200 RF Module’s range modulation sensitivity to screen unwanted tag signals. The range modulation sensitivity adjustment feature of the RF module is used to screen unwanted tag signals without decreasing RF power. This feature reduces the system’s reading range and the difference between peak and continuous read...
  • Page 56 AR2200 RF Module User Guide To adjust read sensitivity, insert a small flat-blade screwdriver into the potentiometer slot for the appropriate antenna and rotate the potentiometer fully counter-clockwise for maximum receiver sensitivity/read range or fully clockwise for minimum receiver sensitivity/read range.
  • Page 57 AR2200 Technical Specifications...

  • Page 59: A Technical Specifications

    12 VDC Power consumption 40 W maximum Power connection 3-pin connector Environmental Specifications The AR2200 RF Module can withstand the environmental conditions shown in Table A-2. Table A-2 AR2200 RF Module Environmental Specifications Environment Specification Shock 5 G ½-sine pulse, 10 ms duration, 3 axes Vibration 1.0 G...

  • Page 60: Table A-3 Ar2200 Rf Module Physical Specifications

    AR2200 RF Module User Guide Table A-3 AR2200 RF Module Physical Specifications Specification Value Size 13.5 x 13.0 x 6.36 in (34.3 x 33.0 x 16.2 cm) Weight 22 lb (10 kg)

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