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4-3

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.

The RF module has 12 test points, numbered TP1 through TP12 as shown in
Figure 4-1.

Figure 4-1 RF Board Test Points

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Содержание AR2200

Страница 1: ...TransCore Inc 19111 Dallas Parkway Suite 300 Dallas Texas 75287 3106 March 2003 P N 411052 003 AR2200 RF Module User Guide ...

Страница 2: ......

Страница 3: ... IP Ltd and is used under license All other trademarks listed are the property of their respective owners Contents subject to change 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 800 755 0378 Fa...

Страница 4: ...ion 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 m...

Страница 5: ...Contents ...

Страница 6: ......

Страница 7: ...Driver Output 2 6 Connections 2 6 Circuit Protection 2 6 International Safety Standards 2 6 Output Power 2 7 Options 2 7 Harsh Environment Option 2 7 Custom Frequencies 2 7 Replacement I O Interface Board 2 7 Accessories 2 7 Attenuators 2 7 Hex Key 2 7 Weatherproof Enclosure 2 7 3 Installing the AR2200 RF Module AR2200 RF Module Installation Options 3 3 Differences in Installation Options 3 3 AI12...

Страница 8: ... Connections 3 8 Compatibility Mode Connections 3 11 4 Testing the RF Module Setting Voltage 4 4 5 Indicator Lights 6 Adjusting RF Power 7 Range Modulation Sensitivity Adjustment A Technical Specifications Component Specifications A 3 Electrical Specifications A 3 Environmental Specifications A 3 Physical Specifications A 3 ...

Страница 9: ...le Minimum Wire Gauge Vs Distance from Reader 3 4 Table 3 2 Jack and Plug Terminal Designations 3 7 Table 3 3 Connecting Wires Between the RF Module and the Reader Interface 3 9 Table 3 4 Maximum Cable Lengths for Power Wiring 3 9 Table 3 5 Connecting the Check Tag Cable 3 11 Table 3 6 Maximum Cable Length for Check Tag Cable 3 11 Table 3 7 Connecting Wires Between the RF Modules and the Reader In...

Страница 10: ...AR2200 RF Module User Guide x ...

Страница 11: ...1 Before You Begin ...

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Страница 13: ...ibes the purpose intended audience guide topics related documentation and document conventions Chapter 2 AR2200 RF Module Overview Provides an overview of the AR2200 RF Module s features options and accessories Chapter 3 Installing the AR2200 RF Module Provides detailed installation instructions for installing a stand alone RF module or connecting one or two RF modules to an AI12xx or AI1301 Reade...

Страница 14: ... as it appears on screen Function Start with the characters G4 and are in mixed case with no underscores and include parentheses after the name as in G4FunctionName Menu Item Appears on a menu Capitalization follows the interface Note Auxiliary information that further clarifies the current discussion These important points require the user s attention The paragraph is in italics and the word Note...

Страница 15: ...ure at 915 MHz is 0 61 mW cm2 The power limit is a 6 minute average 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 t...

Страница 16: ...AR2200 RF Module User Guide 1 6 ...

Страница 17: ...2 Overview of AR2200 RF Module ...

Страница 18: ......

Страница 19: ...2200 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 Figure 2 1 shows the top view of the RF module I O interface ...

Страница 20: ...rcuitry 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 The RF module receives DC power through a cable connection made to the reader A separate reader to RF module cable carries the demodulated tag signal from the RF module to the reader and the on off control sig...

Страница 21: ...a removable 21 terminal plug Features The RF module includes the features listed in this section Range Sensitivity Adjustment Jumper JP1 can be jumpered to inhibit the effect of the range sensitivity adjustments When JP1 is jumpered the maximum broadcast range will be ensured This may be done when the RF module is used in a traffic monitoring system where the maximum size read zone is desired Sens...

Страница 22: ...rminal plug The 21 terminal plug mates with a 21 terminal jack on the RF module interface board The plug removable for servicing uses captive screw compression terminals The antenna coaxial cable connects to the RF module through an N type connector on the side of the RF subassembly Circuit Protection The RF module interface board filters DC power received from the reader and protects output circu...

Страница 23: ...ination of operating frequencies Replacement I O Interface Board The I O interface board is the only replaceable part in the RF module A ribbon cable to connect to the RF subassembly is permanently wired to the RF interface board Accessories The following accessories are available for the RF module Attenuators Five watt 1 to 24 dB attenuators with N type connectors are available from TransCore Oth...

Страница 24: ...AR2200 RF Module User Guide 2 8 ...

Страница 25: ...3 Installing the AR2200 RF Module ...

Страница 26: ......

Страница 27: ...58 F 70 C You must use a baseplate that serves as a heat sink to lower the RF module temperature to an acceptable degree You must have an air gap of at least 0 45 inches 1 1 cm underneath the mounting baseplate If you choose not to leave room for an air gap you can install an additional metal plate under the baseplate Caution If your custom installation setup does not meet TransCore recommended mo...

Страница 28: ...ons This section describes the necessary parts and tools site preparation and the proce dure for installing an interrogator Required Wiring Wire gauges are indicated in Table 3 1 All signal wiring should be twisted pair shielded Table 3 1 RF Module Minimum Wire Gauge Vs Distance from Reader Distance from Reader Stranded Copper Wire minimum gauge 0 ft to 50 ft 0 m to 15 2 m AWG 18 50 ft to 100 ft 1...

Страница 29: ...ble runs in excess of 50 ft 15 2 m between the RF module and antenna are not recommended 1 Longer signal cable connections up to 1 000 cable ft 305 m should be made on the reader to RF module link Refer to the reader documentation for further information concerning RF module positioning Terminal Connections The RF module plug and jack connector pair have 21 terminals Connections from the reader ar...

Страница 30: ...ected 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 Note TransCore does not recommend grounding the case through nonconducting finishes such as paint anodize or irudite Refer to the reader documentation for further information concerning grounding The CHASSIS terminal jack is shown in Figure 3 ...

Страница 31: ...C return from check tag RF module 0 SCTCTL1 System check tag control line RF module 1 a a Used only in compatibility mode SCTCTL0 System check tag control line RF module 1 12SCT1 System check tag power for RF module 1 b b For 12SCT1 and RFCTL1 12SCT0 System check tag 12 V DC power RFCTL0 RF output control channel 0 RF module 0 RFCTL1 RF output control channel 1 RF module 1 b RFPWR RF power RFGND R...

Страница 32: ...ule User Guide 3 8 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 ...

Страница 33: ...nd 2 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 RF Module Signal AI12XX Terminal AI1301 RF Interface Board Terminal RFGND 43 NA RFPWR 42 NA SCTRTNI 43 NA SCTCTLI 36 NA RFCTLO 40 10 RFCTL1 41 12 ANCHA1 45 1 ANACA2 46 2 ANCHB1 47 3 ANCHB2 48 4 ANCHC1 49 5 ANCHC2 50 6 Application Cable Type or equiv...

Страница 34: ...ype male load The antenna output ports must be terminated before turning on power to the reader and RF module Figure 3 4 shows the antenna output port locations Caution Turning on RF power with an unterminated antenna port could result in damage to the RF module Figure 3 4 Antenna Output Port Locations 4 Connect the system check tag cable shown in Table 3 5 Observe the maximum cable length shown i...

Страница 35: ...na All compatibility mode connections are made in parallel with the exception of the RF control connections Only one RF control line from the reader RFCTL0 or RFCTL1 is connected to each RF module Figure 3 5 shows compatibility mode connections Check Tag Line RF Module Terminal for AI12XX AI1301 Red 12SCTO 12 V DC via panel terminal board Black SCTRTNO 12 V RET via panel terminal board White SCTCT...

Страница 36: ... Connections To install your RF module in compatibility mode follow these steps 1 Turn off power to the RF module and the reader 2 Connect wires between the RF modules and the reader interface shown in Table 3 7 Observe the maximum cable lengths shown in Table 3 8 ...

Страница 37: ...ly 10 RF module 0 only RFCTL1 41 RF module 1 only 12 RF module 1 only ANCHA1 45 1 ANACA2 46 2 ANCHB1 47 3 ANCHB2 48 4 ANCHC1 49 5 ANCHC2 50 6 Table 3 8 Maximum Cable Lengths for Power Wiring and Signal Wiring Application Cable Type or equivalent Maximum Length Power wiring Belden 9364 120 ft 36 6 m Power wiring Belden 9365 200 ft 61 0 m Power wiring Belden 9366 300 ft 91 4 m Power wiring Belden 93...

Страница 38: ...1 to antenna cable The antenna output ports must be terminated before turning on power to the reader and RF module Figure 3 4 on page 3 10 shows the antenna output port locations Caution Turning on RF power with an unterminated antenna port could result in damage to the RF module 1 Connect the system check tag cables as shown in Table 3 9 Observe the maximum cable length shown in Table 3 10 Table ...

Страница 39: ...a must be made Readings should be in line with antenna specifications See the antenna techni cal specifications for information on appropriate VSWR readings Table 3 10 Maximum Cable Lengths for Check Tag Cable Application Cable Type or equivalent Maximum Length Check tag cable Belden 9773 100 ft 30 5 m ...

Страница 40: ...AR2200 RF Module User Guide 3 16 ...

Страница 41: ...4 Testing the RF Module ...

Страница 42: ......

Страница 43: ...t 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 The RF module has 12 test points numbered TP1 through TP12 as shown in Figure 4 1 Figure 4 1 RF Board Test Points ...

Страница 44: ...m of 13 5 VDC with RF power off Make the adjustment to achieve this DC level at the reader power supply Adjusting the DC voltage level compensates for the voltage drop within the DC power cable 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 RF module analog signals C 9 40 kHz Range modulator unattenuated 5 V square wave 40 KHz 10 ...

Страница 45: ...5 Indicator Lights ...

Страница 46: ......

Страница 47: ...Indicators and Messages Indicator Function Color s Message DS4 DC PWR ON Green Yellow DC input power Green Input in range of 11 5 VDC to 13 5 VDC Yellow Input out of range 11 5 VDC 13 5 VDC OFF PWR is off DS2 RF ON Red 12 VDC applied to RFPWR and RFGND DS3 RF1 ON Red RF output channel 1 on Do not disconnect antenna transmission line to RF output channel 1 when DS3 is on DS1 RF0 ON Red RF output ch...

Страница 48: ...AR2200 RF Module User Guide 5 4 ...

Страница 49: ...6 Adjusting RF Power ...

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Страница 51: ...ded 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 Figure 6 1 shows dipswitch locations Figure 6 1 RF Power Select Dipswitch Locations ...

Страница 52: ... sensitivity increasing attenuation reduces sensitivity For any application requiring the addition of external fixed attenuators the power rating of the attenuators should be at least twice the transmitted power Table 6 1 RF Power Output Select Dipswitch Settings RF PWR SELECT ANTENNA 1 or ANTENNA 0 DIPSWITCH SETTINGS RF POWER OUTPUT ATTENUATION dB NOMINAL RF POWER OUTPUT LEVEL dBm POS 1 LSB POS 2...

Страница 53: ...7 Range Modulation Sensitivity Adjustment ...

Страница 54: ......

Страница 55: ... potentiometers one for each antenna port You can enable the range modulation by removing programming jumper J3 Figure 7 1 Entailing J3 inhibits the range modulation Figure 7 1 Range Modulation Sensitivity Potentiometers You can enable or disable the range modulation using the two position programming jumper J3 Figure 7 1 Installing the jumper disables the range modulation Removing the jumper enab...

Страница 56: ..._1 RM_DCADJ_0 5 0V DC maximum sensitivity read range RM_DCADJ_1 RM_DCADJ_0 4 0V DC minimum sensitivity read range The resulting reduction in receiver sensitivity is as follows 0 dB to 20 dB minimum 0 dB to 30 dB nominal The range sensitivity adjustment does not cover the system s entire tag reading capability or dynamic range For some installations you may need to reduce RF power in conjunction wi...

Страница 57: ...A AR2200 Technical Specifications ...

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Страница 59: ...ectrical Requirements Environmental Specifications The AR2200 RF Module can withstand the environmental conditions shown in Table A 2 Table A 2 AR2200 RF Module Environmental Specifications Physical Specifications Table A 3 lists the physical specifications of the AR2200 RF Module Characteristic Specification Input power 12 VDC Power consumption 40 W maximum Power connection 3 pin connector Enviro...

Страница 60: ...AR2200 RF Module User Guide A 4 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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