BIUT- 820 - Athens Technical Specialists Inc.
Contents
1. IMPORTANT SAFETY INFORMATION READ BEFORE ATTEMPTING TO USE THE BIUT 820 The BIUT 820 Tester should only be used by qualified and authorized traffic signal technicians or engineers who are familiar with generally accepted electrical safety practices as well as local and national safety codes To avoid possible electric shock burns or fire read all information contained in this manual before attempting to use the Tester BIUT 820 User s Manual Do not use the Tester around explosive gas vapor or dust Do not use the Tester in a wet environment Do not attempt to open any part of the Tester enclosure Do not put hands or any object besides a NEMA TS2 BIU into the BIU slot Do not attempt to test devices that have been subject to lightning strikes or other severe electrical stress Only test BIU devices that are designed according to the NEMA TS2 standard If you are not sure if a device is designed according to the NEMA TS2 standard consult the device manufacturer Only use the power cord provided with the Tester The Tester should only be powered from 120V AC 60Hz 3 Introduction The BIUT 820 TS2 Bus Interface Unit Tester will run a series of tests on BIU devices that comply with NEMA Standards Publication TS2 2003 v2 06 The BIU is a key component in a modern NEMA TS2 signal cabinet It is responsible for converting all the inputs and outputs that need to be controlled and monitored by the controller int2. BIUT 820 User s Manual 7 Summary of TS2 2003 v2 06 Standard 7 3 Data Format The data bits are arranged into 8 bit bytes and packaged into a format referred to as a frame The CU sends command frames and the BIU responds with response frames The general format of a frame is shown below Flag Addr Control Information CRC Flag 01111110 8Bits 8bits Variable length 16Bits 01111110 The frame always begins with an opening flag and ends with a closing flag The second byte of the frame always contains the address of the BIU ABIU should only respond to frames which have an address that matches the address set with the BIU address pins The third byte is a control character It will always be 10000011 83 hex The information field contains all of the frame data and the length will vary depending on the frame type The CRC bytes are used for error checking These bytes contain a mathematically derived code that is calculated by the transmitting device from the bits that are set in the frame The receiving device recalculates the code and compares it with what was received If all of the bits were received correctly the codes will match If a BIU receives a frame with an incorrect CRC it should not respond Below is a partial listing of command frames sent by the CU along with the BIU response These frames are transmitted 10 times per second For a complete listing refer to the NEMA Standard TF Command Frames TF Response F
3. TS2 2003 v2 06 Sections 3 and Sections 8 The information given here is only a summary of some of the important terminology that is used in the test descriptions It is highly recommended that the user obtain a copy of the complete standard 7 1 General The BIU is an important component in a TS2 signal control cabinet It acts as the interface between Port 1 of the CU and the TF and Loop Detector Racks DR Its functions include controlling load switch outputs detector resets and communicating with inductive loop detectors The CU sends digital data frames to the BIU which tell it to do a certain task e g turn on an output or to respond with information e g report the state of inputs The data that the controller sends is referred to as a command frame The response from a BIU is referred to as a response frame 7 2 SDLC Communications The transmission of data between the CU and BIU takes place by means of the SDLC protocol The signal connections are shown below CU BIU Tx Data Rx Data Tx Data Rx Data Tx Clock Rx Clock Tx Clock Rx Clock Rx Data Tx Data Rx Data Tx Data Rx Clock Tx Clock Rx Clock Tx Clock The data bits are transmitted on the Tx Data lines Each bit is read at the receiving station on the rising edge of the Tx Clock signal The data is transmitted at a rate of 153 600 bits per second 18 Rev 1 0
4. is reading the inputs correctly TS2 2003 v2 06 Section 3 3 5 1 3 and 8 8 5 and 5 3 1 4 2 1 0 16 20 Recognition Test Test Description The BIU address pins are set to TF BIU 2 and the BIU is powered up with 24 VDC BIU I O pins 16 20 are set to the active state one at a time Command frames are sent and the response is verified Response required to pass I O pins 16 20 must be recognized as inputs to TF BIU 2 The proper bits must be set in the response frame to indicate that the BIU is reading the inputs correctly TS2 2003 v2 06 Section 3 3 5 1 3 and 8 8 5 and 5 3 1 4 2 O 7 24 Recognition Test Test Description The BIU address pins are set to TF BIU 3 and the BIU is powered up with 24 VDC BIU I O pins 7 24 are set to the active state one at a time Command frames are sent and the response is verified BIUT 820 User s Manual 15 Response required to pass 1 O pins 7 24 must be recognized as inputs to TF BIU 3 The proper bits must be set in the response frame to indicate that the BIU is reading the inputs correctly TS2 2003 v2 06 Section 3 3 5 1 3 and 8 8 5 and 5 3 1 4 2 O 10 14 Recognition Test Test Description The BIU address pins are set to TF BIU 4 and the BIU is powered up with 24 VDC BIU I O pins 10 14 are set to the active state one at a time Command frames are sent and the response is verified Response required to pass I O pins 10 14 must be recognized as inputs to
5. to the directory where the BIUT 820 Interface software was installed In that directory open the folder caller driver and run dpinst exe and follow the instructions Rev 1 0 BIUT 820 User s Manual 5 Running Tests 5 Running Tests Plug in the Tester Before running a test make sure the Tester is plugged into a standard 120V AC 60Hz outlet using the power cable that is provided Put the BIU in the slot Slide the BIU into the yellow slot on the Tester Make sure that the BIU printed circuit card edges are lined up with the card guides Be sure to push the BIU all the way in until the connector is fully engaged The faceplate of the BIU should be flush with the front of the Tester when the connector is fully engaged Connect the SDLC cable Once the BIU is installed in the yellow slot connect the provided SDLC cable from the SDLC port on the front of the Tester to the SDLC port on the front of the BIU Start the tests The preferred method of controlling the Tester is to use the BIUT 820 computer interface software This will allow the user to enter information about the BIU that is being tested and also allow the test reports to be saved The software will also record specific information about each failure that may be detected For situations where simple good or bad functional testing of a BIU is all that is required the tests may be started without using the computer interface software Details for
6. BIUT 820 TS2 Bus Interface Unit Tester NI y User s Manual Revision 1 0 Table of Contents 1 Explanation of Symbols Terms and Abbreviations 3 2 Safety Information neneiia ea eaa 5 3 Introduction IR 6 4 BIUT 820 Software Installation 4444444444nnnnnnnnnnnnennnn T7 4 1 Computer Requirement c ccccccceeceeeeeeeeeeeeeeeeeeesaeeeeeeeeeeeeea 7 4 2 BIUT 820 Interface Software Installation 7 4 3 BIUT 820 USB Driver Installation 4 4444404444 nn T7 5 R nning Tests a ea 9 5 1 Testing a BIU without using a computer 9 5 2 Testing a BIU using the computer interface software 10 6 Test DescriptiONS ooooonnncccnnnnnonnnnnnoncnncnncncnnnnnnccnnnnncnnnnccnnnnnnnnnn 12 6 1 Power Tests yla rind 12 6 2 SDLC Protocol Tests m rrn aa aaaea aaea aaea i ieaiai 13 6 3 Input Output Tests 224242242444nnnnnnnnnnnnnnnnnnnnnnnnnnnnrnnnn 14 7 Summary of TS2 2003 v2 06 Standard 18 PA General eher in 18 7 2 SDLC COMMUNICAtIONS ooccccccccnnnnnnnononononcnnnnnnnnnnnncnnncnnnnnnncnnnnns 18 7 32 Dala Formatieren delle seh lebens 19 7 4 BIU Input Output Signals 22 0 0 cee cece eee eeeeeeeeeteeeeeeeeeeeeaea 20 7 3 BlU Opto lnp ls szene aan 20 8 Service and Calibration 44444444444nnnnnnnnnnnennnnnee nam 21 9 Limited Warranty
7. TF BIU 4 The proper bits must be set in the response frame to indicate that the BIU is reading the inputs correctly TS2 2003 v2 06 Section 3 3 5 1 3 and 8 8 5 and 5 3 1 4 2 Load Switch Driver Test Test description The BIU address pins are set to TF BIU 1 and the BIU is powered up with 24 VDC Command frames are sent to the BIU to set each load switch diver output one at at time Response required to pass The state of the BIU load switch pins is sampled The pin must be in the active state when the correct bit is set in the command frame TS2 2003 v2 06 Section 8 8 4 and 5 3 1 4 2 The test is repeated when the BIU address is set to TF BIU 2 Constant Call Recognition Test Test description The BIU address pins are set to DR BIU 1 and the BIU is powered up with 24 VDC Each of the detector channel inputs is set to the active state one ata time Command frames are sent and the response is verified Response required to pass I O pins 1 16 must be recognized as detector call inputs to DR BIU 1 The proper bits must be set in the response frame to indicate that the 16 Rev 1 0 BIUT 820 User s Manual 6 Test Descriptions BIU is reading a constant call correctly TS2 2003 v2 06 Section 3 3 1 4 2 6 BIUT 820 User s Manual 17 7 Summary of TS2 2003 v2 06 Standard In order to thoroughly understand the tests performed by the BIUT 820 it is important to be familiar with NEMA Standards Publication
8. ally In the start up screen click the BIUT 820 button then follow the instructions in the software installation wizard To install the software that was downloaded from our website double click the downloaded executable file to run the installation Follow the instructions in the software installation wizard Note Do not forget to install the ATSI Tester USB device driver for BIUT 820 4 3 BIUT 820 USB Driver Installation To communicate with the BIUT 820 an ATS Tester USB driver needs to be installed The same driver is used with several ATSI products and is included on the software installation CD The latest version of the driver can also be downloaded from our website www atsi tester com The driver installation package is also copied to the computer during the software installation To install the USB device driver from a CD insert the CD into the drive of the computer A start up screen should open automatically In the start up screen click ATSI Tester USB Driver button then follow the instructions in the device driver installation wizard To install the USB device driver package that was downloaded from our BIUT 820 User s Manual 7 website double click the downloaded executable file to run the installation Follow the instructions in the device driver installation wizard To install the USB device driver from the package copied during software installation open My Computer and navigate
9. and Liability 2444sn sn nnenennnnnnnnnennnnnnnnnnnn 22 BIUT 820 User s Manual Rev 1 0 1 Rev 1 1 BIUT 820 User s Manual 1 Explanation of Symbols Terms and Abbreviations 1 Explanation of Symbols Terms and Abbreviations Graphical Symbols The following symbols are used on the BIUT 820 enclosure and in this manual Anytime one of these symbols is encountered the user should be aware of the condition described here next to each symbol Caution Risk of danger Read the Users Manual before operating the BIUT 820 Terms and Abbreviations The following is a list of terms and abbreviations used throughout the text of this manual along with the definition Term or Abbreviation Definition BIU Bus Interface Unit CU Traffic signal cabinet controller unit DR Detector Rack mA milliamperes thousandths of an amp ms milliseconds thousandths of a second NEMA National Electrical Manufacturers Association PC Personal computer SDLC Synchronous Data Link Control This is the digital communications link between a BIU and controller Tester The ATSI BIUT 820 TS2 Bus Interface Unit Tester TF Terminals and Facilities TS2 A published standard which defines how the BIU should function BIUT 820 User s Manual 3 Term or Abbreviation Definition VDC Volts DC Vrms Volts RMS root mean squared 4 Rev 1 0 BIUT 820 User s Manual 2 Safety Information 2 Safety Information
10. both methods are given in the following sections 5 1 Testing a BIU without using a computer For simple good or bad testing of a BIU it is not necessary to use the computer software The tests can be started by using the push buttons and display located on the front of the Tester 1 Turn the Tester power switch to the ON position 2 After a power up sequence the Tester display will show the main menu 3 Push the NEXT button to move the cursor gt and select one of the two testing options RUN SELECTED TESTS will allow you to choose which test to run BIUT 820 User s Manual 9 RUN ALL TESTS will run all of the tests that are available gt RUN SELECTED TESTS RUN ALL TESTS SETUP INFO RUN SELECTED TESTS gt RUN ALL TESTS SETUP INFO 4 When the cursor is pointing to the desired option push the ENTER button to begin the tests If RUN ALL TESTS was chosen the tests will begin automatically If RUN SELECTED TESTS was chosen push the NEXT button until the desired test is shown then press ENTER to begin the test If you would like to return to the main menu without running a test keep pushing the NEXT button until you see gt RETURN TO MAIN MENU Then press the ENTER key 5 2 Testing a BIU using the computer interface software The preferred method of testing is to use the BIUT 820 computer interface software to control the Tester The soft
11. d frame is sent and the response is checked The BIU is then powered up with 24 VDC After a delay of 200ms Type 10 command frames are sent and the proper BIU response is verified Response required to pass There must be no response from the BIU after the 9 ms delay comm cease There must be a valid response from the BIU after the 200ms delay comm restore TS2 2003 v2 06 Section 8 5 1 6 2 SDLC Protocol Tests CRC Test Test description The BIU address pins are set to TF BIU 1 and the BIU is powered up BIUT 820 User s Manual 13 with 24 VDC Type 10 command frames are sent and the proper response is verified Next a Type 10 command frame is sent with a one bit error in the CRC bytes Response required to pass There must be no response from the BIU to the Type 10 command frame with a one bit CRC error TS2 2003 v2 06 Section 3 3 1 4 2 4 Correct Address Response Test Test description The BIU address pins are setto TF BIU 1 and the BIU is powered up with 24 VDC Valid command frames addressed to each of the TF BlUs are sent Response required to pass The BIU must only respond to command frames with addresses that match the address pins TS2 2003 v2 06 Section 3 3 1 3 The test is repeated when the BIU address is set to all of the other valid TF and DR addresses 6 3 Input Output Tests Input 1 8 Recognition Test Test description The BIU address pins are set to TF BIU 1 and the BIU is
12. o a digital data stream The data is transmitted to and received from the controller over a Synchronous Data Link Control SDLC connection The only link between the BIU and the controller unit is the SDLC connection This makes testing individual BIUs extremely difficult outside of a fully functional TS2 cabinet Even then only limited testing is possible because built in TS2 controller diagnostic capabilities are extremely limited This situation has created the need for a comprehensive standalone BIU Tester The BIUT 820 is housed in an industry standard 19 rack mount type enclosure with a 3U height A rugged carrying case is also available as an option 6 Rev 1 0 BIUT 820 User s Manual 4 BIUT 820 Software Installation 4 BIUT 820 Software Installation 4 1 Computer Requirements Windows XP minimum At least one available USB port Adobe Acrobat Reader must be installed This can be downloaded for free at www adobe com 4 2 BIUT 820 Interface Software Installation Installation of the software is a simple process However it may require an administrative access to the computer The BIUT 820 comes with a software CD which can be used to install the software Ifthe CD is not available the software can be downloaded from the Internet To download the software visit our website www atsi tester com To install the software from a CD insert the CD into drive of the computer A start up screen should open automatic
13. om of the window BIUT 820 User s Manual 11 6 Test Descriptions All of the BIUT 820 tests are based on NEMA Standards Publication TS2 2003 v2 06 It is the intent of ATSI to test the requirements of the aforementioned standard according to the most generally accepted interpretation It is recommended that the user run all available tests However the operation of some BIUs may deviate from the standard in a known and repeatable fashion due to the design of the hardware or firmware Furthermore an individual jurisdiction state city county may have specific requirements or practices that are routinely followed which deviate from the standard or ignore certain parts In such cases the user has the option to disable the testing of certain BIU functions ATSI has no authority to enforce compliance with any part of the standard It is the responsibility of the user to determine what tests are appropriate for their local requirements 6 1 Power Tests Power up Initialization Test Test description The BIU address pins are set to TF BIU 1 and the BIU is powered up with 24 VDC The state of the output pins is checked and then Type 10 frames are sent Response required to pass The BIU outputs must be set to the 24 VDC level at power up and the BIU must be fully functional within 1000 ms TS2 2003 v2 06 Section 8 5 1 Supply Current Test Test description The BIU is powered up with 26 VDC all the input
14. powered up with 24 VDC Each BIU input is set to the active state while all others are set to the inactive state Command frames are sent and the response is verified Response required to pass The proper bits must be set in the BIU response frame to indicate that the BIU is reading the inputs correctly TS2 2003 v2 06 Section 3 3 5 1 3 and 8 8 5 The test is repeated when the BIU address is set to all of the other valid TF addresses Opto Input 1 4 Recognition Test Test description The BIU address pins are set to TF BIU 1 and the BIU is powered up 14 Rev 1 0 BIUT 820 User s Manual 6 Test Descriptions with 24 VDC An 8 5 Vrms sine wave is applied to each opto input one at a time Command frames are sent and the response is verified Response required to pass The proper bits must be set in the BIU response frame to indicate that the BIU is reading the opto inputs correctly TS2 2003 v2 06 Section 8 8 5 and 8 8 5 2 The test is repeated when the BIU address is set to all of the other valid TF addresses O 14 24 Recognition Test Test Description The BIU address pins are set to TF BIU 1 and the BIU is powered up with 24 VDC BIU I O pins 14 24 are set to the active state one at a time Command frames are sent and the response is verified Response required to pass I O pins 14 24 must be recognized as inputs to TF BIU 1 The proper bits must be set in the response frame to indicate that the BIU
15. rames Type Function Type Function 10 BIU 1 Outputs Inputs Request 11 BIU 2 Outputs Inputs Request 12 BIU 3 Outputs Inputs Request 13 BIU 4 Outputs Inputs Request 138 BIU 1 Inputs 139 BIU 2 Inputs 140 BIU 3 Inputs 141 BIU 4 Inputs Cr Ce Er FT DR Command Frames DR Response Frames Type Function Type Function 20 BIU 1 Call Data Request 148 BIU 1 Call Data 21 BIU 2 Call Data Request 149 BIU 2 Call Data 22 BIU 3 Call Data Request 150 BIU 3 Call Data 23 BIU 4 Call Data Request 151 BIU 4 Call Data iv ELA BIUT 820 User s Manual 19 7 4 BIU Input Output Signals The BIU has 8 input pins 15 output pins and 24 I O pins that may be operated as an input or an output All of the input and output signals are nominally 24 VDC signals They are active or true when in the low state For example to activate an input it must be connected to logic ground When not activated it will be pulled up to 24 VDC Likewise when an output is active it sinks to logic ground When not active it will be pulled up to 24 VDC Refer to the NEMA Standard for the maximum and minimum voltage thresholds required for proper operation of these signals The BIU inputs outputs and l O pins are configured for different functions depending on the setting of the BIU address pins Refer to the BIU signal assignment tables in the NEMA Standard for a complete listing 7 5 BIU Opto Inp
16. s are set to the active state and the supply current is measured Response required to pass Measured DC supply current must be less than 200 mA TS2 2003 v2 06 Section 8 5 700 ms Power Loss Test Test Description The BIU address pins are set to TF BIU 1 and the BIU is powered up 12 Rev 1 0 BIUT 820 User s Manual 6 Test Descriptions with 24 VDC Type 10 command frames are sent to set the BIU outputs to a specific pattern The state of the outputs is verified The 24 VDC power is set to 0 VDC for less than 700 ms and then restored The state of the outputs is checked Response required to pass The state of the output pins must be the same as before the power was set to 0 VDC TS2 2003 v2 06 Section 8 5 1 1500 ms Power Loss Test Test description The BIU address pins are set to TF BIU 1 and the BIU is powered up with 24 VDC Type 10 command frames are sent to set the BIU outputs to a specific pattern The state of the outputs is verified The 24 VDC power is set to 0 VDC for 1500 ms and then restored The state of the output pins is checked Response required to pass The BIU outputs must be set to the 24 VDC level TS2 2003 v2 06 Section 8 5 1 Comm Cease Test Test description The BIU address pins are set to TF BIU 1 and the BIU is powered up with 24 VDC Type 10 command frames are sent and the proper BIU response is verified The 24 VDC power is then set to 0 VDC After a 9 ms delay a Type 10 comman
17. ut charge to the Purchaser The Purchaser s sole remedy is restoration of product operation ATSI accepts no liability for incidental or related expenses Under no circumstances will ATSI s liability exceed the purchase price for items claimed to be defective This Limited Warranty does not extend to any Product that has been damaged or rendered defective as a result of accident misuse abuse modification of the product or service by anyone other than ATSI EXCEPT AS EXPRESSLY SET FORTH IN THIS WARRANTY ATSI MAKES NO OTHER WARRANTIES EXPRESS OR IMPLIED INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICUALR PURPOSE OF THE PRODUCT AND ANY DEVICE TESTED BY THE PRODUCT ATSI EXPRESSLY DISCLAIMS ALL WARRANTIES NOT STATED IN THIS LIMITED WARRANTY ANY IMPLIED WARRANTIES THAT MAY BE IMPOSED BY LAW ARE LIMITED TO THE TERMS OF THIS EXPRESS LIMITED WARRANTY Warranty Repair To return the Product for repairs covered under the Limited Warranty Request a Return Merchandise Form by phone fax or email from the ATSI Service Department or complete the form at www atsi tester com Return the Product along with the completed form with prepaid postage to ATSI 8157 US Hwy 50 Athens OH 45701 Phone 740 592 2874 Fax 740 594 2875 Email service atsi tester com 22 Rev 1 0 BIUT 820 User s Manual BIUT 820 User s Manual Rev 1 0 23 TS2 Bus Interface Unit Tester Model BIUT 820 User s Manual Re
18. uts The BIU has 4 optically isolated inputs that are commonly used for pedestrian detectors Typically a 12 VAC signal is connected between the input and opto common to activate the input 20 Rev 1 0 BIUT 820 User s Manual 8 Service and Calibration 8 Service and Calibration The BIUT 820_has no user serviceable parts Under no circumstances should the user attempt to open the enclosure If the tester appears to be malfunctioning contact ATSI to make arrangements for repair See the Limited Warranty and Liability section of this manual for details ATSI strongly recommends that each Tester be calibrated yearly A yearly calibration will verify that your Tester is operating within the original manufacturers specifications and provide you with a detailed calibration report for documentation Please visit www atsi tester com for the latest pricing of calibration services and extended maintenance plans BIUT 820 User s Manual 21 9 Limited Warranty and Liability The BIUT 820 TS2 Bus Interface Unit Tester Product distributed by Athens Technical Specialists Inc ATSI is warranted to the original purchaser Purchaser to be free of defects in materials and workmanship for a period of one year from the purchase date stated on the invoice Within this period in the event of a defect malfunction or other failure of the Product while in the custody of the Purchaser ATSI will remedy the defect or cause of failure witho
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20. ware will allow you to enter more complete information about the BIU that is being tested and save the test reports You will also be able to view more detailed information about each test failure that may occur To start a test using the software 1 Connect a USB cable from the computer to the USB port on the front of the Tester Note Before you can go any further the USB driver must be installed Refer to the USB Driver Installation section of this manual 2 Turn the tester power switch to the ON position 3 Start the BIUT 820 software 10 Rev 1 0 BIUT 820 User s Manual 5 Running Tests 4 From the BIUT 820 software click on the Test Setup tab and fill in the data All information is optional except for the BIU Serial Number 5 Click on the Run Tests tab and select the tests that you would like to run 6 Select One Lap or Multiple Laps A lap is defined as one time through all of the selected tests 7 Click the Start button when you are ready to begin testing 8 You will be prompted to verify that the information you have entered is correct If you click yes the testing will continue If you click no the testing will not continue and you may re enter any information that is not correct and then press the Start button again when you are ready to begin testing Note If you hover your mouse pointer over any of the objects in the BIUT 820 software a help hint will appear in the status bar at the bott
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