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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.

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Содержание Amtech IT2200

Страница 1: ...IT2200ReaderSystem P N 411554 Installation Maintenance Service Guide withMultimodeCapability...

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Страница 3: ...red 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 fu...

Страница 4: ...on 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...

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Страница 7: ...Contents...

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Страница 9: ...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 I...

Страница 10: ...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...

Страница 11: ...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 B...

Страница 12: ...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 C...

Страница 13: ...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 P...

Страница 14: ...SA 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...

Страница 15: ...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 An...

Страница 16: ...tery 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...

Страница 17: ...T2020 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 Log...

Страница 18: ...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...

Страница 19: ...1 Before You Begin...

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Страница 21: ...ill 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 Chapt...

Страница 22: ...ions for performing preventive maintenance on the IT2200 Reader System with Multimode Capability components Appendix A Acronyms and Glossary Provides an alphabetical list of abbreviations acronyms and...

Страница 23: ...ode Code including keywords and variables within text and as separate paragraphs and user defined program elements within text appear in courier typeface Dialog Box Title Title of a dialog box as it a...

Страница 24: ...ng safe exposure levels are issued by the Occupational Safety and Health Administration OSHA Section 1910 97 of OSHA Safety and Health Standards 2206 legislates a maximum safe exposure limit of 10 mil...

Страница 25: ...2 Theory of Operation...

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Страница 27: ...magnetic systems while overcoming many of their limitations Components The primary components of a RFID system are Readers scanners interrogators that process the signal returned by the tag and send t...

Страница 28: ...ansmits the code along with any appended information to the host computer system The reader also controls the RF module sending it a command to generate the RF signal The reader s basic operation is t...

Страница 29: ...RF and another receives the signal returned by the tag bistatic The sophistication of this device depends on the application and the type of tag used Antenna type is very important for the application...

Страница 30: ...Installation Maintenance Service Guide 2 6 Figure 2 2 Field Size Shape and Antenna Polarization Define the Reading Range Bistatic Configuration Figure 2 3 Field Size Shape and Antenna Polarization Def...

Страница 31: ...ncluding high performance electronic toll systems In these applications the tag s only function is to signal its presence to the reader and provide the reader with its ID number Read write tags have t...

Страница 32: ...rom the specific type s of reader s being used in the system and variable bit formats while offering flexibility and expandability Finally the host computer must support multi user multi tasking and m...

Страница 33: ...reception does not always start at the beginning of the tag s message the system must be designed to receive 10 full code frames to ensure reading an entire message Reading speed can be extended by De...

Страница 34: ...etallic surfaces because the metal will interfere with the tag s operation Exterior tags can be mounted on metallic or non metallic surfaces Noise and Interference Immunity Electrical noise and interf...

Страница 35: ...must operate within national and international laws and guidelines with respect to frequency and power The common frequency bands available are near 888 MHz 915 MHz and 2450 MHz The authorized frequen...

Страница 36: ...modulated form of the same signal from the tag This homodyne system uses a sensitive multi channel preamplifier to distinguish the return signal from the transmitted signal Automatic Vehicle Identific...

Страница 37: ...sponse The reader can then write data to memory also if required A read write transaction is more complicated because not only does it entail commu nication between the tag and a reader but the reader...

Страница 38: ...3m 10 ft zone would mean that 0 15 m 0 5 ft of the 3 m 10 ft is a null or no RF As shown in Table 2 1 the minimum footprints or payment zones for each lane to achieve an accuracy of 99 97 are 1 7 m 5...

Страница 39: ...transaction using the IT2200 Reader System with Multimode Capability operating in multimode and an ATA type tag Figure 2 8Typical Dedicated Read Only Transaction Using the IT2200 Reader System in Mul...

Страница 40: ...2200 Reader System with Multimode Capability Installation Maintenance Service Guide 2 16 Figure 2 9Typical Read Only Transaction Using the IT2200 Reader System in ATA Mode Operation with an ATA Type T...

Страница 41: ...3 System Components...

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Страница 43: ...Multimode Capability are as follows Figure 3 1 IT2020 Reader Logic Card IT2611 RF Module AA3152 Universal Toll Antenna UTA or AA3153 Beacon Antenna IT2502 Check Tag Antenna IT2221 IT2211 IT2235 and A...

Страница 44: ...as The RF module attaches to the antennas with low loss coaxial cables The antennas along with the RF module provide the radio signal required to achieve the bidirectional wireless communications link...

Страница 45: ...hassis eliminating the need for stand alone readers The IT2020 Reader Logic Card requires two adjacent slots in the host PC Figure 3 2 IT2020 Reader Logic Card Functions The IT2020 Reader Logic Card e...

Страница 46: ...re built into the hardware and software Expandable for future options Both hardware and firmware features can be expanded in the reader Processor The processing is based on the Motorola MC68EN360 micr...

Страница 47: ...m of the IT2020 Reader Logic Card is shown in Figure 3 3 Figure 3 3 IT2020 Reader Logic Card Block Diagram The reader logic card acts as the carrier for industry pack IP modules that expand the reader...

Страница 48: ...nna connections Bulkhead circular waterproof connectors for power and interface Stainless steel mounting hardware The RF module connects to a 19 to 28 VAC or 16 to 28 VDC power source and interfaces b...

Страница 49: ...odule Transmit Connector Bistatic RF Module This Type N RF connector connects the RF module to the transmitting downlink antenna through a short low loss coaxial RF flexible cable Receive Connector Bi...

Страница 50: ...s known as modulated backscatter The RF module transmits the modulated signal at a reader set discrete frequency within the 902 to 904 MHz and 909 75 to 921 75 MHz frequency bands The transmitted sign...

Страница 51: ...result in the generation of more than the maximum specified power output of 1 W Type Testing The RF module has passed testing for type acceptance of FCC Part 90 as a location and monitoring service t...

Страница 52: ...on Maximum gain Downlink RF power control 0 to 15dB attenuation control Set by host computer command facilitates lane tuning Downlink RF power control steps 1dB nominal N A Downlink modulation depth s...

Страница 53: ...of its internal antenna is aligned favorably with the polarization of the system antenna Figure 3 6 illustrates the linear polarization of an antenna and tag Figure 3 6 Tag Orientation with Linear Pol...

Страница 54: ...transmitting signals to the tag and the uplink antenna receiving signals from a vehicle tag In a bistatic configuration an AA3153 Antenna acts as the downlink antenna transmitting signals to the tag a...

Страница 55: ...en to the check tag is erased if system power is lost The default check tag data is reloaded when system power is restored Tags Tags are self contained RFID devices that are capable of two way communi...

Страница 56: ...IT2200 Reader System with Multimode Capability Installation Maintenance Service Guide 3 16 Figure 3 12 illustrates the IT2221 Tag block diagram Figure 3 7 IT2221 Tag Block Diagram...

Страница 57: ...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 batter...

Страница 58: ...ges 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 I...

Страница 59: ...reen 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...

Страница 60: ...s 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 s...

Страница 61: ...splays 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 fo...

Страница 62: ...as 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...

Страница 63: ...d 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 B...

Страница 64: ...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 wi...

Страница 65: ...T2410 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 R...

Страница 66: ...nd 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 Indic...

Страница 67: ...4 Installing the IT2200 Reader System...

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Страница 69: ...rized 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 Recor...

Страница 70: ...hts buzzers and vehicle detectors that will interface with the system q Ensure that you have software that allows a PC or laptop to interface with the reader firmware q Pull communications coaxial and...

Страница 71: ...ayouts 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 q Test data cable for proper co...

Страница 72: ...enna 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...

Страница 73: ...t 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...

Страница 74: ...erpass 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 Thes...

Страница 75: ...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...

Страница 76: ...m with Multimode Capability Installation Maintenance Service Guide 4 10 Figure 4 5 illustrates a typical monostatic laneside cantilever arm mount with one antenna Figure 4 5 Cantilever Arm Mount Monos...

Страница 77: ...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 l...

Страница 78: ...ole 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 stati...

Страница 79: ...ng 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 dat...

Страница 80: ...er 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 a...

Страница 81: ...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 sett...

Страница 82: ...2 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 seate...

Страница 83: ...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 wa...

Страница 84: ...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...

Страница 85: ...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 conn...

Страница 86: ...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 Connect...

Страница 87: ...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 wre...

Страница 88: ...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 si...

Страница 89: ...hrink 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 finishe...

Страница 90: ...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 r...

Страница 91: ...5 Tuning the Lane...

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Страница 93: ...tenna 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 th...

Страница 94: ...et 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...

Страница 95: ...ing 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 compute...

Страница 96: ...ation 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 syste...

Страница 97: ...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...

Страница 98: ...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...

Страница 99: ...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 ant...

Страница 100: ...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 si...

Страница 101: ...nning 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 driv...

Страница 102: ...attern 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...

Страница 103: ...ype 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...

Страница 104: ...table 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...

Страница 105: ...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 t...

Страница 106: ...etween 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 Not...

Страница 107: ...ader 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...

Страница 108: ...ink 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 tag...

Страница 109: ...6 Troubleshooting the Installation...

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Страница 111: ...alkie 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 S...

Страница 112: ...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...

Страница 113: ...cle 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 eac...

Страница 114: ...his 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 l...

Страница 115: ...as 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...

Страница 116: ...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 Re...

Страница 117: ...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...

Страница 118: ...te 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 s...

Страница 119: ...attery 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...

Страница 120: ...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 Reade...

Страница 121: ...enuation 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...

Страница 122: ...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 VA...

Страница 123: ...oting 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 t...

Страница 124: ...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 engi...

Страница 125: ...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 ho...

Страница 126: ...ng 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 th...

Страница 127: ...ve 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 tra...

Страница 128: ...er 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 mo...

Страница 129: ...7 Preventive Maintenance...

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Страница 131: ...omponent 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 Che...

Страница 132: ...IT2200 Reader System with Multimode Capability Installation Maintenance Service Guide 7 4 Figure 7 1 Visual Inspection Process...

Страница 133: ...A Acronyms and Glossary...

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Страница 135: ...fers to a standard RF communications proto col and data storage method ATA type tags are read only AVI automatic vehicle identification B backscatter portion of an RF signal that is modulated by a tag...

Страница 136: ...rticular interface or flexible steel pipe used for electrical wir ing CR carriage return CRC cyclic redundancy check CTRL control D data information that is processed by a computing device DC direct c...

Страница 137: ...l 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 thro...

Страница 138: ...byte M 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 m meter s Mega million 106...

Страница 139: ...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 R RAM random access mem...

Страница 140: ...tional 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 divis...

Страница 141: ...er version software VSWR voltage standing wave ratio W W watt s write process of recording data for example writing to computer memory or to a tag s memory Writing writes over erases previous data sto...

Страница 142: ...IT2200 Reader System with Multimode Capability Installation Maintenance Service Guide A 10...

Страница 143: ...B Block Diagrams...

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Страница 145: ...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...

Страница 146: ...IT2200 Reader System with Multimode Capability Installation Maintenance Service Guide B 4 Figure B 2 IT2200 Monostatic Reader System Functional Block Diagram...

Страница 147: ...Block Diagrams B 5 IT2020 Reader Logic Card Figure B 3 IT2020 Reader Logic Card Functional Block Diagram...

Страница 148: ...IT2200 Reader System with Multimode Capability Installation Maintenance Service Guide B 6 Figure B 4 IT2020 Reader Logic Card Interface...

Страница 149: ...Block Diagrams B 7 Figure B 5 Minimum Connections for the IT2020 Reader Logic Card Interface Bistatic Application...

Страница 150: ...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...

Страница 151: ...Block Diagrams B 9 IT2611 RF Module Figure B 7 IT2611 RF Module Functional Block Diagram Bistatic Configuration...

Страница 152: ...IT2200 Reader System with Multimode Capability Installation Maintenance Service Guide B 10 Figure B 8 IT2611 RF Module Functional Block Diagram Monostatic Configuration...

Страница 153: ...C System Technical Specifications...

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Страница 155: ...ent 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 ar...

Страница 156: ...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...

Страница 157: ...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...

Страница 158: ...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 s...

Страница 159: ...onmental 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...

Страница 160: ...IT2200 Reader System with Multimode Capability Installation Maintenance Service Guide C 8...

Страница 161: ...D Hardware Interfaces...

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Страница 163: ...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 ena...

Страница 164: ...des 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 T...

Страница 165: ...s 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...

Страница 166: ...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 ar...

Страница 167: ...DM 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 N...

Страница 168: ...ble 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 designa...

Страница 169: ...olled 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...

Страница 170: ...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 de...

Страница 171: ...nations 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...

Страница 172: ...n 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...

Страница 173: ...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...

Страница 174: ...ut 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...

Страница 175: ...in 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 Inter...

Страница 176: ...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...

Страница 177: ...ow 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 G...

Страница 178: ...nds 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 rece...

Страница 179: ...static 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...

Страница 180: ...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...

Страница 181: ...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 dec...

Страница 182: ...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...

Страница 183: ...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 in...

Страница 184: ...ed 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...

Страница 185: ...E Connector Pin outs...

Страница 186: ......

Страница 187: ...minating 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 connecto...

Страница 188: ...a 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...

Страница 189: ...ation 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...

Страница 190: ...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 add...

Страница 191: ...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...

Страница 192: ...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 Out...

Страница 193: ...ut 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 Inp...

Страница 194: ...ut 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 I...

Страница 195: ...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...

Страница 196: ..._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 SWSI...

Страница 197: ...nused 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 Desc...

Страница 198: ...l 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...

Страница 199: ...l 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...

Страница 200: ...SIG2 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...

Страница 201: ...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 Conne...

Страница 202: ...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 O...

Страница 203: ...dule 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 B N A Table E 13 RF Module Antenna Connectors Connecto...

Страница 204: ...IT2200 Reader System with Multimode Capability Installation Maintenance Service Guide E 20...

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