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Access keyboards ATB 420/421 Multi-Function Keyboard Product Specification and Service Guide 

 

___________________________________________________________________________ 

Rev 6 

 Access Keyboards 2001 & 2002 - All rights reserved               Page  31 of 37 

 

To re-assemble the matrix back into the keyboard base, hold the matrix at the back and locate the 
mouse switch PCB tangs and the chassis plate into the base moulding apertures at the front of the 
keyboard.  Tilt the keyboard towards you and carefully ease the TACT switches under the mouse 
keys and then gently lower the matrix into position. Replace the 3 screws and locate the matrix 
ribbon into its connector.  Check that the tactile feel of the mouse tact switches.  

7.2.4  Replacement of individual key switches

. 

The ATB420 uses replaceable switches and has a high quality PTH (Plated Through Hole) circuit 
board, which enables switches to be replaced by an operator who is trained in desoldering 
techniques.  The recommended procedure for replacing a switch is as follows. 

 

 

 

 

Step 1 
 
Desolder the four pins of the switch to be removed  

Step 2 
 
Ensure that all the solder is removed around 
the pins and that the pins are free to move. 

 

 

Step 3 
 
Push down on the centre plastic pin of the switch.  

Step 4 
 
Inspect the circuit board to check that the 

All manuals and user guides at all-guides.com

all-guides.com

Содержание ATB420 series

Страница 1: ...el 44 0 118 966 3333 Fax 44 0 118 926 7281 e mail sales accesskeyboards com ATB420 421 Series Multi Function Keyboard Product Specification and Service Guide www accesskeyboards com All manuals and user guides at all guides com a l l g u i d e s c o m ...

Страница 2: ... herein Warranty Access Keyboards Ltd warrants that this product shall be free from defects in workmanship and materials for a period of one year from the date of original purchase If the product should fail to operate correctly in normal use during the warranty period Access Keyboards will replace or repair it free of charge No liability can be accepted for damage due to misuse or circumstances o...

Страница 3: ...ot installed and used properly that is in strict accordance with the manufacturer s instructions may cause interference to radio communication It has been tested and found to comply with the limits for a class A computing device in accordance with the specifications in Subpart J of part 15 of FCC rules which are designed to provide reasonable protection against such interference when the equipment...

Страница 4: ...LARY RS232 INTERFACE PORT 10 2 7 INTEGRATED DUAL ILLUMINATION OCR READER 10 2 8 BI COLOUR LED 10 2 9 INTERNAL SOUNDER 11 2 10 INTEGRATED MOUSE POINTER OPTION 11 3 INSTALLATION 12 3 1 CONFIGURING AND TESTING THE KEYBOARD 12 3 2 FIRMWARE UPGRADE 15 4 OCR SWIP E TECHNIQUE 19 5 DATA FORMAT PROTOCOL 20 5 1 KEYBOARD DATA 20 5 2 HOST PORT RS232C SETTINGS 20 5 3 RS232 DATA FORMAT 20 5 4 SITA DATA FORMAT 2...

Страница 5: ...d ATB2 Documents may be read in either swipe direction and a durable steel document guide provides exceptional wear characteristics and long life All documents can be read within the footprint of the housing The document exit is inboard of the keyboard so that the unit can be operated where space is limited A dual illumination OCR reader reads passports visas and identity documents as well as stoc...

Страница 6: ... 2 connector first before the keyboard purple PS 2 connector Optional USB connectors for Legacy Systems Access can provide options whereby a USB to serial and USB to PS 2 connectors can be added to provide USB connectivity for Win 2000 and XP based systems All data i e OCR MSR BCR or keyboard mouse will be transmitted through the USB converter but acting as a virtual serial wedge or virtual keyboa...

Страница 7: ...er Environment Operating Temperature 5 50 C Humidity 20 90 non condensing Storage Temperature 0 55 C Humidity 5 95 non condensing MTBF In excess of 90 000 operating hours Diagnostics Internal self test upon power up Data standards Standard 104 105 key AT scan codes Sets 1 2 and 3 Size Desk Footprint 439mm x 194 mm Language support US 104 key layout 105 key International Layouts available Other Int...

Страница 8: ...1 can be configured to output data as a keyboard wedge interface Access can pre configure the unit with firmware which will allow any of the devices i e OCR MSR or BCR functions to output the data as keyboard strokes Special data parsing firmware can be pre loaded to suit customer requirements where data needs to be presented as specific customised fields Data Output Standard 104 105 key AT scan c...

Страница 9: ...ndustrial Code 2 of 5 IATA 2 of 5 CODE 128 Data Output Standard ASCII Bar code Connection 6 pin DIN Connection Physical Std 6 pin DIN female Pinout 1 5v 2 DATA 3 GND 4 LASER ENABLE 5 TRIGGER 6 WAND ENABLE optional CCD and Laser Gun adapter Available as an option Std 6 pin DIN male to 9 pin D type Male Pinout DIN DB9 Function 1 4 9 5V 2 2 Data 3 7 Ground 4 6 Laser Enable 5 5 Trigger Shield Shield P...

Страница 10: ...of 30 size I characters Stock control number and document number of ATB 2 s IATA 2 of 5 barcode of TAT s Data Standards Conforming to ICAO Document 9303 IATA Recommended Practice 1720a Data Output Standard ASCII Media thickness 1 25mm Swipe Velocity 10 40 cm sec Response time 0 9 1 4 seconds Read direction Right to left Construction Integrated into keyboard housing MTBF 100 000 operating hours Rea...

Страница 11: ...ng ATBconfig exe See Section 3 1 When Enabled the sounder will emit a single Beep when valid MSR OCR or Bar Code data is transmitted The sounder emits three short beeps when OCR data includes one or more characters When invalid MSR data is read the sounder does not sound When disabled no sound is emitted except a short beep at power up 2 10 Integrated Mouse Pointer Option An integrated Trackpoint ...

Страница 12: ...yboard saves its settings and can then be disconnected and installed on another computer with these settings When run ATBconfig exe will scan the computers available RS232 ports and locate the ATB420 421 keyboard Please find below the instructions for using ATBconfig exe Atbconfig exe This utility allows users to configure and test the ATB keyboard and may be download from Access Keyboards web lin...

Страница 13: ...ill change from SITA to ARINC protocol and vice versa After making the required changes key 8 to save the new settings in the keyboard and terminate the set up process Alternatively key 9 will exit without saving changes made IT IS IMPORTANT TO KEY EITHER 8 OR 9 BEFORE TERMINATING THE PROGRAM Please note that changes made will not take effect until the keyboard is power cycled Notes 1 ARINC protoc...

Страница 14: ... parameter for that parameter e g keying C will change the OCR output from keyboard to serial and vice versa Key E sets the inter character delay from 1 fastest to 8 slowest After making the required changes key S to save the new settings in the keyboard and terminate the set up process Alternatively key Q will exit without saving changes made IT IS IMPORTANT TO KEY EITHER S OR Q BEFORE TERMINATIN...

Страница 15: ... 421 using the Access ProgBox Shipping List The following items are supplied to allow the ProgBox to be used in stand alone mode AKP0009552 ProgBox AKP101 REV C AVR Programming Cable AKP109 REV A S 2 Power Adaptor 5KBD884701 ull Modem Cable 9 way D F to 9 way D F PSU5V4AUNIV 5V Power Supply Introduction This document details how to reload an ATB420 421 keyboard from a ProgBox which has been config...

Страница 16: ... should be removed using a sharp instrument e g a scalpel 6 Turn on the PC 7 Ensure the PC is logged out Lab mode Keyboard powered from a DC power supply Note the illustration below shows the connection of the cables It is not necessary to put the keyboard upside down 1 Connect a 5V DC power supply to the PS 2 power adaptor AKP109 2 Ensure the power switch of the ProgBox is in the left position KB...

Страница 17: ...the display until the box is powered down If a download failure occurs remove power from the keyboard and ProgBox then re apply power and start again Calibration of the OCR Engine Once the correct OCR firmware has been loaded the OCR Engine needs re calibration This can be done in two ways and is dependant on the level of the OCR firmware that was previously loaded in the engine In most cases and ...

Страница 18: ...on OK 3 4 The main ProgBox window then appears as in Figure 2 5 6 Select File Open then select the configuration file supplied It has the file extension PGB The details of the configuration are shown in the window An example is shown in Figure 3 7 Select File Download to ProgBox 8 A progress bar at the bottom of the window displays the progress of the download This should take about 2 minutes 9 A ...

Страница 19: ...ed by the ATB420 will result in a bad read message of 30 characters a Red light indication from the Bi Colour LED and 3 beeps from the sounder A label is attached to the slot area to assist operators agents to the swipe direction and position of passports and other travel documents Operators should follow the following procedure Insert the document at the right hand end of the slot orientated with...

Страница 20: ...integrated MSR Bar Code Port and Auxiliary RS232 port of the ATB420 ATB421 is transmitted via the RS232 Host Interface in serial asynchronous format adhering to RS232C V24 specifications Default Com Port Settings are 9600 baud 7 Bit Even Parity One stop Bit The ATBconfig exe described in Section 3 1 allows selection of 19200 Baud 8 Bit No Parity is also available 5 3 RS232 Data Format In the follo...

Страница 21: ...er for Bar Code Reader Device EOD3 1F End delimiter for Bar Code Reader Device CR 0D Carriage Return ESC 1B Escape 5 4 1 MSR Data Format When the ATB420 421 formats data read from MSR is the following data structure is used SOD1 STX DOC ID T B magnetic data CR T B magnetic data CR T B magnetic data CR T B magnetic data CR T B magnetic data ETX EOD1 MNEMONIC ASCII HEX VALUE DESCRIPTION DOC ID A or ...

Страница 22: ...he end of the string and retransmits it via the Host Port as follows SOD2 STX data data CR ETX EOD2 In standard mode the ATB420 421 does not otherwise alter the data read via the Auxiliary port The Bi Color LED will show Green for one second upon transmission of the OCR message to the Host 5 4 4 Bar Code Data Format Section 2 4 describes the physical and electrical connections for the 6 Pin DIN Ba...

Страница 23: ...R data is transmitted immediately and the MSR Buffered data is discarded 5 5 3 Un Buffered and Buffered Command Protocol The ATB42 4210 will initialise in Un Buffered mode In order to change to Buffered mode the Host must transmit the following sequence SOD1 STX ESC 04DH 03BH 042H ETX EOD1 No acknowledgement is issued by the ATB420 to this command The keyboard is changed back to Un Buffered mode b...

Страница 24: ...nd the following character value is not checked for control but simply buffered Inserted DLE s are included in the 1024 byte count maximum size CRC 16 is calculated on the whole data link message STX through ETX inclusive All DLE characters are omitted from the CRC calculation except true DLE characters sent as DLE DLE and in this case only the first character is omitted 5 6 1 Logical Link Data Fo...

Страница 25: ...for each device type BID for MSR documents BID binary bits 7 4 BID binary bits 3 0 0001 Track 1 0001 Block 1 0010 Track 2 0010 Block 2 Etc Etc BID for Bar Code Scanner read documents BID Hex Bar Code Type 31 Interleaved 2 of 5 32 Industrial 2 of 5 IATA 2 of 5 33 Code 39 35 Code 128 36 PDF417 The BID identifier is not used for OCR data The DOC is 030H and EOB is always CR 5 7 Unformatted Data Outpu...

Страница 26: ... illumination OCR Pointing device ATB420 M ATB421 M Yes Yes ATB420 MP ATB421 MP Yes Yes Yes ATB420 P ATB421 P Yes Yes ATB420 O ATB421 O Yes Yes ATB420 OP ATB421 OP Yes Yes Yes ATB420 MDO ATB421 MDO Yes Yes Yes ATB420 MDOP ATB421 MDOP Yes Yes Yes Yes ATB420 MBO ATB421 MBO Yes Yes Yes Yes ATB420 MBOP ATB421 MBOP Yes Yes Yes Yes Yes Magnetic Swipe Reader Integrated OCR with dual illumination Bar code...

Страница 27: ... is intended for users and support technicians who do not wish to disassemble the keyboard 7 1 1 OCR and MSR head cleaning Cleaning cards are available from Access Keyboards Part Number CARDCLEAN05 These can be used to clean the OCR and MSR heads The card is impregnated with an approved cleaning agent and can also be used as a disposable cleaning pad to remove dirt from the outside of the keyboard...

Страница 28: ...ss Keyboards 2001 2002 All rights reserved Page 28 of 37 Exploded view of ATB420 421 keyboard top cover removed for clarity OCR HEAD SEALED MAG HEAD CARD GUIDE CARD GUIDE MAIN CONTROL PCB FLEXIBLE CABLE OCR ENGINE POINTER STAINLESS STEEL GUIDE PLATE LED THREADED INSERTS BACK REAR COVER 1 6mm STEEL PLATE MATRIX PCB WAND INPUT KEYCAPS All manuals and user guides at all guides com ...

Страница 29: ...mm screws securing top moulding Pointer button base cover screws Only remove if replacing mouse buttons 7 2 2 Inspection of OCR window To conduct a detailed inspection and cleaning of the OCR window remove the rear 4 screws and lift off the back cover To ensure that the OCR window is not damaged it should only be cleaned with soft lint free material and a light alcohol There are no user serviceabl...

Страница 30: ... Matrix ribbon gently from the blue matrix sub connector Remove the three screws and carefully lift the matrix up at the rear and out of the base while gently ensuring that the mouse button tangs release If the Pointer option is fitted please be careful not to lose the rubber pointer hat The matrix may also be cleaned by immersion in an ultrasonic cleaning tank followed by a de ionised water rinse...

Страница 31: ...o position Replace the 3 screws and locate the matrix ribbon into its connector Check that the tactile feel of the mouse tact switches 7 2 4 Replacement of individual key switches The ATB420 uses replaceable switches and has a high quality PTH Plated Through Hole circuit board which enables switches to be replaced by an operator who is trained in desoldering techniques The recommended procedure fo...

Страница 32: ...itch 7 2 5 Keyboard Matrix Test If changes are made to the keyboard matrix and or keys switches then these can be tested prior to final installation This test can be done off line and uses our simple utility called Test US Keyboard exe i e Test US Keyboard lnk This utility can be found on our web link called www accesskeyboards com downloads atbutils 1 Before clicking on the icon ensure that you h...

Страница 33: ...layout will appear on the screen as illustrated below 4 Carefully click on each individual button to check for both open circuit will remain red closed circuit will go black or make circuit will go green When all switches go green the test will be passed 5 Be careful not to click two keys or click repeating the same key at the same time as this will make the keys go blue You can abort if this happ...

Страница 34: ...board and can be replaced as a module In the event of damage the pointer assembly can be dis assembled by firstly removing the ribbon cable then the unscrewing the 3 screws When re assembling the unit please be careful to ensure the correct orientation of the pointer assembly as shown 3 screws secure the TrakStyk pointing device to the keyboard chassis plate TrakStyk ribbon cable connects to the c...

Страница 35: ... head connectors MSR head ribbon connector 2 off M3 x 6mm screws secure the stainless steel guide to the base moulding M3 x 4mm screw with crinkle washer secures earth bond point NB Fit the washer UNDER the ring tag An insulation spacer is located below the guide assembly Carefully lift this away The main cable is plugged into a connector on the main control PCB and the screen connection is via a ...

Страница 36: ...ng with their star washers Carefully remove the two small miniature connectors from the OCR engine PCB You may require the aid of long nose pliers Be careful not to snag the cable from the connector To assemble follow the instructions in reverse All supplied OCR heads have a protective tape placed on the OCR glass Please ensure that this is removed prior to operation of the unit An assembled OCR h...

Страница 37: ...ng time ago and now the non printing characters are rarely used for their original purpose Below is the ASCII character table and this includes descriptions of the first 32 non printing characters ASCII was actually designed for use with teletypes and so the descriptions are somewhat obscure If someone says they want your CV however in ASCII format all this means is they want plain text with no fo...

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