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3–6                              Set–Up and Installation

The 3700 Machine Mount CCD may be oriented in any way so that the beam scanning
path moves across the bar code as shown in Figure 3.3.  Bar code presentation to the
scanner is important for successful scanning of the label.  The first requirement is that the
beam scan path cross all bars on the label, as well a 0.25 inch quiet zone before and after
the code.  The Automatic Identification Manufacturers (AIM), the industry association,
has defined orientation of the bar code label according to Figure 3.4.

Indicates relative direction
of bar code target movement

Front View

Bar Code Target Moving
Perpendicular to Scan Beam

Optical Light Center Line

Optical Light Center Line

Bar Code Target Moving
Parallel to Scan Beam

Mounting Surface

Mounting Surface

Mounting Surface

Figure 3.3   Examples of SCANTEAM  3700 Barcode Orientation

Содержание SCANTEAM 3700 CCD

Страница 1: ...R SCANTEAM 3700 CCD ...

Страница 2: ... radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures FCC Class B Compliance Statement Caution Any...

Страница 3: ...lyn shall not be liable for use of our product with equipment i e power supplies personal computers etc that is not CE marked and does not comply with the Low Voltage Directive For further information please contact Welch Allyn Ltd 1st Floor Dallam Court Dallam Lane Warrington Cheshire WA2 7LT England Patents The SCANTEAM 3700 product is covered by the following U S Patent 5 932 862 Other U S and ...

Страница 4: ......

Страница 5: ... 2 2 2 2 1 Mechanical Layout of the 3700 2 2 2 2 2 Single Modular Connector Port 2 3 2 2 3 Audible Indicator 2 3 2 2 4 Mounting Inserts 2 3 2 3 Operating Theory 2 3 2 4 Scanner Host Communication 2 4 2 4 1 Communications Port 2 4 2 4 2 Asynchronous ASCII Interface 2 4 2 4 3 Hardwire Pinouts 2 5 2 5 Power Requirements 2 6 Chapter 3 Set Up and Installation Section Page 3 1 Introduction 3 1 3 2 Gener...

Страница 6: ... Commands 4 15 4 6 Default Operating Parameters 4 16 Chapter 5 Service Technical Assistance Section Page 5 1 Maintenance 5 1 5 2 Troubleshooting Guide 5 1 5 2 1 Troubleshooting Hints 5 1 5 2 2 Diagnostic Procedure 5 2 5 2 3 Troubleshooting Checklist 5 2 5 3 Obtaining Factory Service 5 3 5 3 1 Service Under Warranty 5 4 5 3 2 Out of Warranty Service 5 4 5 4 SCANTEAM 3700 Removal Replacement 5 5 ...

Страница 7: ...pecifications B 1 B 3 Electrical Specifications B 3 B 4 Environmental Specifications B 4 B 5 Mechanical Specifications B 5 B 6 Bar Code Label Specifications B 5 B 7 SCANTEAM 3700 Interface Cable B 6 C Serial Commands Summary C 1 Configuration Commands C 1 C 2 Operational Commands C 2 C 3 Configuration Status Query Commands C 2 C 4 Default Configuration Settings C 3 D ASCII Conversion Table Glossar...

Страница 8: ...ensions 2 2 2 3 Basic Scanner Decoder Operation 2 3 3 1 SCANTEAM 3700 Identification Label 3 2 3 2 Mounting Dimensions for the 3700 3 5 3 3 Examples of SCANTEAM 3700 Barcode Orientation 3 6 3 4 SCANTEAM 3700 Pitch Skew Tilt Tolerance 3 7 3 5 Specular Reflection Interference 3 7 3 6 Scanner Illumination Clearance 3 8 A 1 Main Elements of the 3700 CCD Bar Code System A 1 A 2 SCANTEAM 3700 Timing Seq...

Страница 9: ...g and configuration parameters and explains how to change these to meet your specific needs using serial commands sent through the host RS 232 communications interface Explains how to use the configuration status query commands Chapter 5 explains how to obtain service and technical assistance Appendix A is a guide to CCD operation bar code basics and scanning techniques Appendix B provides informa...

Страница 10: ... Palmer 1989 Helmers Publishing Inc 174 Concord Street Peterborough NH 03458 603 924 9631 Handbook of Bar Coding Systems Harry E Burke 1984 NCR Corporation Van Nostrand Reinhold Company Inc 115 Fifth Avenue New York New York 10003 Automatic ID Resource Catalog AIM USA Publications 634 Alpha Drive Pittsburgh PA 15238 2802 Fax 412 963 8753 Phone 412 963 8588 AIM Guidelines on Symbology Identifiers U...

Страница 11: ... True RS 232 data communications with RTS CTS XON XOFF ACK NAK Autodiscrimination of 6 bar code symbologies 100 scans per second standard other scan rates available Flexible scan trigger configurations Decoder configurable for high security Scan voting to ensure bar code data integrity Automatic read timeout Ease of configuration through RS 232 interface 1 2 SCANTEAM 3700 Hardware Description The ...

Страница 12: ...onnector was chosen as the standard configuration for ease in servicing the scanner once installed 1 2 2 Nonvolatile Memory The 3700 contains nonvolatile FLASH memory which is used to store operating parameters configured by means of host serial commands This memory is easily reconfigurable to modify or add symbologies as well as to modify or add serial commands to emulate a currently installed sc...

Страница 13: ...ic system Scanning Circuitry Scans Bar Code Auxiliary Trigger Device Optional SCANTEAM 3700 Machine Mount CCD Host System Power Supply Decoder Host Application Asynchronous Communication Supplies Power to 3700 typically Sends Configuration Commands Sends Operational Commands Sends Configuration Status Query Commands Sends Software Trigger Signal Optional Enables Scanning Circuitry Reads Bar Code S...

Страница 14: ...he SCANTEAM 3700 Machine Mount CCD including general dimensions the location of connectors and the scanner window 3 5 88 9 1 05 26 7 2 9 73 7 Top View Side View Interface Port I O Communications and Power Back View Front View Scanner Window millimeters in brackets mm Mounting Surface Mounting Surface Figure 2 2 3700 Fixed Mount CCD Dimensions ...

Страница 15: ...nd imaging lens focuses the scattered optical energy from the bar code symbol and the peak detectors and comparator generates a digital representation of the bar code symbol to send to the microprocessor Refer to Appendix A CCD Operation and Bar Code Scanning for a detailed explanation of 3700 scanning circuitry operation When the 3700 sees a trigger a read cycle is started The read cycle is compl...

Страница 16: ...er of signal events per second roughly equivalent to bits per second Parity is a means of checking character bit patterns for validity by confirming if they contain an Even or Odd number of 1 s The communications port can be configured to operate at baud rates of 600 1200 2400 4800 9600 19200 and 38400 with even odd or no parity Data bits refers to the number of bits used to encode each ASCII char...

Страница 17: ...cted RTS CTS can be disabled by configuration command Preambles and postambles are optional ASCII strings that precede and are appended to each data message sent by the 3700 Typical preamble and postamble strings would include the ASCII control characters STX start of text ETX end of text CR carriage return and LF line feed An identification character to indicate the type of bar code read and sour...

Страница 18: ...iption 2 5 Power Requirements DC operating voltage is 5 volts and consumes approximately 200 milliamps when scanning Refer to Appendix B for a complete description of voltage range current consumption levels and pin assignments ...

Страница 19: ... to be returned to the factory for service or repair Check the part numbers and confirm that each item on the packing list has been supplied Check that the scanner model number and any other companion products are the ones ordered for your application The scanner model and serial numbers are on the identification label attached to the scanner enclosure Refer to Figure 3 1 You may want to record th...

Страница 20: ...static discharge to the 3700 3 3 1 Preparation Interface cables for evaluating the 3700 are available from Hand Held Products Hand Held Products also offers 110VAC and 220VAC to 5VDC power supplies for the 3700 If you wish to construct your own cables Appendix B lists the 3700 port pin assignments Set up Checklist SCANTEAM 3700 CCD Scanner SCANTEAM 3700 Input Output Power Cable 5 VDC Power Supply ...

Страница 21: ...for the SCANTEAM 3700 requires a serial command from a host to trigger a scan Change the trigger mode to Continuous Read Send Once Clear on Timeout by typing Kg 1 The elapsed time between the typing of each character should not exceed 5 seconds The illumination LEDs should light in response to the command 6 Confirm communications to the 3700 with the test label below Observe that the LED reflector...

Страница 22: ...tivities 1 Power down the host system or instrument 2 Mount the SCANTEAM 3700 in the host instrument The 3700 has four mounting holes threaded inserts Be sure to allow access to all cable connections Figures 3 2 and 3 3 show the general dimensions for mounting the 3700 3 Connect the 3700 RS 232 Communication Port to the host system I O 4 If applicable connect your object sensor or hardware trigger...

Страница 23: ...ptics Center Line Installation should provide adjustment to align the optical center line on the intended target This adjustment should account for tolerance variation in the 3700 scanner as well as the host equipment Front View 3 1 78 7 42 10 7 Scanner Window 2 5 1 1 05 26 7 2 9 73 7 Mounting Surface Focal Plane 2 73 69 3 1 95 49 5 REF Figure 3 2 Mounting Dimensions for the 3700 ...

Страница 24: ...el as well a 0 25 inch quiet zone before and after the code The Automatic Identification Manufacturers AIM the industry association has defined orientation of the bar code label according to Figure 3 4 Indicates relative direction of bar code target movement Front View Bar Code Target Moving Perpendicular to Scan Beam Optical Light Center Line Optical Light Center Line Bar Code Target Moving Paral...

Страница 25: ...s 7 Bar Code Label R Rotation THE ABOVE DEFINITIONS ARE FROM AIM SPECIFICATIONS Rear View R R R 0 to 10 specular reflection interference See Figure 3 5 Figure 3 4 SCANTEAM 3700 Pitch Skew and Tilt Tolerance Bar Code Target 30 30 10 0 SCANTEAM 3700 Specular Zone Operation in the Specular Zone must be avoided Mounting Surface ÇÇÇÇÇÇÇ 31 7 9 Nominal Optics Center Line Figure 3 5 Specular Reflection I...

Страница 26: ...iew 2 5 1 61 15 5 2 2 3 5 88 9 2 4 61 27 millimeters in brackets mm Figure 3 6 Scanner Illumination Clearance This completes installation of the SCANTEAM 3700 Machine Mount CCD in a host instrument You are now ready to configure the 3700 for your particular application Instructions for configuring the 3700 using configuration and operational commands are provided in Chapter 4 Configuring the SCANT...

Страница 27: ...s there is no acknowledgement or other response from the 3700 It is important to enter commands accurately If a command is sent erroneously to the 3700 you may terminate that command and send the command again You may send configuration status query commands to obtain a status listing of the configuration selections For detailed instructions on preparing the SCANTEAM 3700 for configuration refer t...

Страница 28: ...data string The data string is the serial command Send the hexadecimal equivalent of each ASCII value when programming the 3700 from the host An ASCII conversion chart is provided in Appendix D The following three sections 4 3 4 4 and 4 5 explain the operational configuration and configuration status query commands providing the ASCII and equivalent hex characters for command definitions Note In o...

Страница 29: ... a valid configuration cannot be retrieved from memory the 3700 will operate according to the default configuration Disable Decoding Command DC4 COMMAND ASCII Hex Characters Disable Decoding DC4 14 This is a single character command Sending the operational command DC4 will cause the 3700 to stop looking at bar code data Enable Decoding Command DC2 COMMAND ASCII Hex Characters Enable Decoding DC2 1...

Страница 30: ... command is described in section 4 4 Serial Trigger Command 2 COMMAND ASCII Hex Characters Serial Trigger 2 3C 32 3E Sending the operational command 2 sends a serial trigger to scanner port 2 If the Trigger Mode for Port 2 is set to allow serial triggers the 3700 enables the auxilliary wand input port The hardware configuration to support this port is optional Save Configuration Command Z COMMAND ...

Страница 31: ...mmands include K as the start of the command text string The K must be upper case 3 The next letter in the command string defines the function and must be lower case 4 Where applicable the mode_global portion of the command defines the selection for the particular command for both scanner inputs unless specified otherwise in the following mode portions of the command 5 Mode_port_1 and mode_port_2 ...

Страница 32: ... stop bits to two and the data bits to eight you would send the following command Ka 2 0 1 1 If you only wanted to set the baud rate to 4800 leaving the other parameters unchanged you could send the following abbreviated command Ka 3 If you only wanted to set the stop bits to two leaving the other parameters unchanged you could send the following command Ka 1 The default setting is 9600 baud even ...

Страница 33: ...nly be used as the first character in a pair with the second character being either a 1 or a 2 SUB 1 causes the 3700 to include the Port ID in the preamble while SUB 2 specifies that the Code ID should be included Table 4 1 lists the Code ID values The default setting is preamble enabled Port ID and Code ID characters sent with data strings Tip When character pairs SUB 1 and SUB 2 are specified in...

Страница 34: ...NUL ACK NAK DC1 DC2 DC3 DC4 or DEL The character SUB should only be used as the first character in a pair with the second character being either a 1 or a 2 SUB 1 causes the 3700 to include the Port ID in the postamble while SUB 2 specifies that the Code ID should be included Port ID is always 1 Table 4 1 lists the Code ID values The default setting is postamble enabled CR and LF characters sent wi...

Страница 35: ...S Enable XON XOFF Disable ACK NAK Mode 3 Enable RTS CTS Enable XON XOFF Disable ACK NAK Mode 4 Disable RTS CTS Disable XON XOFF Enable ACK NAK Mode 5 Enable RTS CTS Disable XON XOFF Enable ACK NAK Mode 6 Disable RTS CTS Enable XON XOFF Enable ACK NAK Mode 7 Enable RTS CTS Enable XON XOFF Enable ACK NAK Sending the configuration command Kf sets the communications protocol The default setting is Mod...

Страница 36: ...iguring multiple ports to a continuous trigger mode The 3700 decodes from only one port at a time With multiple ports triggered the 3700 will select each in turn and attempt to read If no bar code label is present at the selected port the 3700 will wait for read timeout to expire before stepping to the next port If read timeout is set to a value near or greater than the time it takes a bar code la...

Страница 37: ... trigger mode Set Votes Command Km COMMAND Km data_global data_port_1 data_port_2 Parameter ASCII Option Data one or two ASCII digits range of 1 to 31 3 1 Sending the configuration command Km sets the votes One or two ASCII digits in the range of 1 to 31 determine the number of consecutive identical decodes required for a valid read A selection of 1 means that no voting will take place The default...

Страница 38: ... checksum minimum length and maximum length The default setting is Code 39 enabled doesn t require or send checksum minimum length 1 and maximum length 48 Set Codabar Command Kq COMMAND Kq enable send start stop minimum length maximum length Parameter ASCII Option Enable 0 no 1 yes Send Start Stop 0 no 1 yes Minimum Length Set from 1 to 60 6 Maximum Length Set from 1 to 60 60 Sending the configura...

Страница 39: ...re a fixed length set the minimum and maximum lengths to the same value Tip 2 An Interleaved 2 of 5 symbol must always have an even number of characters encoded in it However if you have configured the 3700 to require a checksum but not send the checksum the 3700 will reduce the number of characters output by one to an odd value The minimum and maximum lengths will be checked after the checksum is...

Страница 40: ... beeper Mode 1 Enable beeper on valid read Mode 2 Enable beeper on failed read Sending the configuration command Ku sets the beeper mode For example if you wanted to enable the beeper for good reads on port 1 you would send the following command Ku 1 The default setting is Mode_global 0 with beeper disabled Set Scan Rate Command Kv COMMAND Kv rate reserved reserved Parameter ASCII Option Rate 0 50...

Страница 41: ...r status Kv scan rate status Each configuration query will cause the current status of the selected option to be output in a format identical to the configuration command string itself except that global fields are excluded For example if the trigger mode_global is set to 5 Kg will result in Kg 5 5 being output by the 3700 Except for the Communication Port Command configuration commands take effec...

Страница 42: ...eeper Data Bits 7 No Read Message NR Parity Even Postamble CR LF Preamble Port ID Code ID Read Timeout Timeout ends a read attempt 1 5 seconds RTS CTS Disabled Stop Bit 1 Trigger Mode Serial Trigger or External Trigger Read Once Votes Voting set to 3 for port 1 and set to 1 for port 2 XON XOFF Disabled Default Configuration Symbology Settings Codabar Enabled Send Start Stop Yes Minimum Length 6 Ma...

Страница 43: ...blems that prevent the SCANTEAM 3700 from operating normally Field repair procedures include the following Power supply troubleshooting 3700 Machine Mount CCD troubleshooting 5 2 1 Troubleshooting Hints If there is no power to the 3700 Machine Mount CCD check the following Host power supply output to the 3700 Check that the output voltage from the host is 5 VDC If the voltage isn t present or is o...

Страница 44: ...type is disabled 2 Symbol length is out of range 3 Symbol does not contain a valid checksum character 4 Bar code is bad damaged or out of spec 5 Window is scratched or dirty 1 3700 is not decoding 2 Good read is disabled 1 Loose I O communications cable 2 3700 is waiting for clear to send CTS 3 3700 is waiting for XON Baud rate parity stop bits or data bits is wrong Solution 1 Connect cable 2 Conf...

Страница 45: ...Fax 315 685 4156 For service in Europe please contact your Hand Held Products representative at the address that follows or your local distributor European Office Hand Held Products Ltd Hondsruglaan 87 D 5628 DB Eindhoven The Netherlands Telephone Int 31 40 242 4486 Fax Int 31 40 242 5672 United Kingdom Office Hand Held Products UK Ltd Dallam Court Dallam Lane Warrington Cheshire WA2 7LT United Ki...

Страница 46: ...ephone European Ofc Int 31 40 242 4486 U K Ofc Int 44 1925 240055 E mail support handheld com Asia Telephone Int 852 2511 3050 or 2511 3132 E mail support handheld com 5 3 1 Service Under Warranty All Welch Allyn bar code products carry a one 1 year warranty from date of shipment The specific Limited Warranty coverage for the SCANTEAM 3700 Machine Mount CCD is described near the end of this manual...

Страница 47: ...nt Power to the host system must be turned off before removing the 3700 Machine Mount CCD Removing the 3700 involves reversing the steps that you followed during installation Chapter 3 Caution Some circuits in the 3700 Machine Mount CCD are sensitive to electrostatic discharge Be sure you are properly grounded before removing the 3700 from the host system Note Set the host instrument power switch ...

Страница 48: ...5 6 Service Technical Assistance ...

Страница 49: ...canning and Decoding a Bar Code Symbol The body of the SCANTEAM 3700 houses all the scanning elements and decoding interface elements Refer to Figure A 1 Power Supply Digitizing Microprocessor Signal Processing and Control Circuitry Cable Bar Code Symbol Bar Code Label Image Modular Connector LED Pulse Generator CCD Sensor LED Reflector Lens Aperture Decoding Interface Pixel Array Figure A 1 Main ...

Страница 50: ...to the host 8 Depending upon the trigger chosen the scanner either continuously initiates another scan cycle or waits for the next trigger to scan LED Reflector The bar code symbol is illuminated with a bank of LEDs with a proprietary reflector The LEDs are pulsed strobing illumination to stop relative motion of the scanner and the label CCD Sensor The optical energy scattered from the bar code sy...

Страница 51: ...he device configures the operating parameters sent through serial commands as required and decodes the scanned bar code data Timing Sequence Figure A 2 illustrates the timing sequence for the SCANTEAM 3700 Shift Out Analog Data Illumination Timing White Black Analog Signal from CCD Array Digital Data Out White Black Bar Code Symbol Being Scanned Decoded Data Decoded Output Only Figure A 2 SCANTEAM...

Страница 52: ...anner All scanners use optical systems which are protected by windows at the scanning end to read the bar code symbol On wand scanners the window is located in the tip Laser and CCD scanners have a larger and more noticeable viewing window It is important to keep these optics clean because just like the lenses on reading glasses if they become dirty scratched or smudged they won t work properly If...

Страница 53: ...lch Allyn test targets If you need more information on these measurements contact your Welch Allyn representative B 2 Optical Specifications Scanning Direction Single Line Unidirectional Scan Rate 100 scans per second See chart below Scan Speeds Scans Second Approximate Lateral Scan Speed mm Sec Inch Sec 100 375 9500 Lateral Motion Sensitivity 5 inches per second 254mm sec Scan Width 2 4 inches 61...

Страница 54: ...scan width MRD minimum reflective difference 37 5 Tilt Angle Controlled by bar code length and height See Figure 3 4 Skew Angle 30 to 30 degrees See Figure 3 4 Specular reflection zone 0 to 10 degrees Operation in this zone must be avoided Pitch Angle 7 to 7 degrees on 7 5 mil See Figure 3 4 Light Source Illumination Visible Red LED Wavelength 645 nm 30 CCD Type Standard Resolution Standard Perfor...

Страница 55: ... 1 10 10 Pin Modular Connector Communications Port Pin Signal 1 Shield Function Cord Shield 2 Trigger Enable 3 Ground System Ground 4 Receive Data Input RX Data 5 TX Data 6 VCC 5VDC Power Input 7 RTS Ready to Send Output 8 CTS Clear to Send Input Transmit Data Output Trigger Signal to Decoder Scanner Enable Input State depends on use 9 10 Hardwire Option See chart below Four Pads for Hardwire to 3...

Страница 56: ...level to 3000 meters ESD 15 KV A drain path for ESD should be provided when installing a 3700 in the host system Shock Drop Test Sustains three 3 drops from 4 feet 1 2 meters to a non yielding surface Mean Time Between Failure Ground Benign 45 000 hrs minimum will vary among models B 5 Mechanical Specifications 3700 Width 3 5 Inches 89mm Length 2 9 Inches 75mm Height 1 05 Inches 26m Interface Cabl...

Страница 57: ...ines which could fool the scanner Specks or blemishes in the white spaces or false or missing bar sections could be interpreted by the reading equipment as part of the code Generally the width of such flaws is more serious than the height Code symbols should be rejected if these defects are present Definition The bars in the bar code symbol should be well defined Their edges should not be rough or...

Страница 58: ...6 Unused 7 CTS 8 RTS 9 VCC or Unused Shell Shield Drain 9 Pin D Female P1 To Host System P1 P2 P2 P3 Optional connector for external power supply To SCANTEAM 3700 Interface Port Pin 1 Pin 10 Pin 2 Pin 4 Pin 3 Pin 1 Pin5 Pin 1 Pin 9 Pin 6 Connector Pinouts 1 VCC 2 GND 3 Unused 4 Unused Shell Shield Drain 4 Pin Mini Din Female Optional P3 Pin 9 is unused if an exter nal power supply is used P3 Cable...

Страница 59: ...t Postamble Command Ke enable data Set Communications Protocol Command Kf mode Set Trigger Mode Command Kg mode_global mode_port_1 mode_port_2 Set Read Timeout Command Kh mode_global time_global mode_port_1 time_port_1 mode_port_2 time_port_2 Set No Read Message Command Kk enable data Set Votes Command Km data_global data_port_1 data_port_2 Set Code 39 Command Kp enable require checksum send check...

Страница 60: ...nds Command Format Configuration Query Causes the entire series of individual status messages to be output Individual Configuration Query K Stands for the letter of the individual configuration command Causes a single configuration status message to be output To determine the current configuration status for an individual configuration command section use the appropriate query string indicated bel...

Страница 61: ...empt 1 5 seconds RTS CTS Disabled Stop Bit 1 Trigger Mode Serial Trigger or External Trigger Read Once Votes 3 votes for port 1 and 1 vote for port 2 XON XOFF Disabled Symbology Configuration Default Settings Codabar Enabled Send Start Stop Yes Minimum Length 6 Maximum Length 60 Code 39 Enabled Require Checksum No Send Checksum No Minimum Length 1 Maximum Length 48 Code 128 Enabled Minimum Length ...

Страница 62: ...C 4 Serial Commands Summary ...

Страница 63: ...S T U V W X Y Z _ a b c d e f g h i j k l m n o p q r s t u v w x y z DEL CONTROL FUNCTION DEFINITIONS NUL SOH STX ETX EOT ENQ ACK BEL BS HT LF VT FF CR SO SI DLE DC1 DC2 DC3 DC4 NAK SYN ETB CAN EM SUB ESC FS GS RS US SP DEL Null or all zeros Start of heading Start of text End of text End of tranmission Enquiry Acknowledge Bell or alarm Backspace Horizontal tabulation Line Feed Vertical tabulation...

Страница 64: ...D 2 ASCII Conversion Table ...

Страница 65: ...t sees it ASCII is an acronym for the American Standard Code for Information Interchange It is a data communications protocol for data transmission between an originating and a destination interface 128 coded characters are included comprising 96 noncommunications data characters and 32 control characters It should be noted that most bar code symbologies are unable to encode the full ASCII set Asy...

Страница 66: ...host device Welch Allyn has a standard set of lower case Code ID s These are given in Table 4 2 See also Port ID Code 39 Check Character Included is a decoder option When enabled with Code 39 check character required the check character will be confirmed and included in the data message Code 39 Check Character Required is a decoder option When enabled Code 39 s checksum will be calculated and conf...

Страница 67: ...Distance is the distance of highest resolution in front of the scanner window Host Computer refers to the data system s controlling processor which interfaces with the decoder and other system elements to receive their data outputs and command their functions Interleaved 2 of 5 Check Digit Included is a decoder option When enabled with Interleaved 2 of 5 check digit required the check digit will b...

Страница 68: ...ain an Even or Odd number of 1 s PLCC is an acronym for plastic leaded chip carrier a type of integrated circuit package PLCC components are used in surface mount circuit board technology Port refers to the electrical connector on a decoder computer or other system component through which data is transmitted or received Port ID is a number that designates the scanner port from which a bar code sig...

Страница 69: ...ger mechanisms can be a push button switch photoelectric control internal object sense proximity sensor or multiple combinations of all of these Usable Scan Length refers to that portion of the scan path for which the scanner can accurately digitize bar code and maintain all its specifications This length is specified on a flat surface which is perpendicular to the optical axis of the scanner Vola...

Страница 70: ...Glossary 6 ...

Страница 71: ...ameters 4 16 Configuration Settings 4 16 Symbology Settings 4 16 Diagnostic Procedure See Troubleshooting Guide E Electrical Specifications B 3 Communication Port Connector Pin Assignments B 3 Four Pads Hardwire to Motherboard B 3 Indicators B 4 Operating Current B 3 Operating Voltage B 3 Environmental Specifications B 4 Barometric Pressure B 4 ESD B 4 Humidity B 4 Mean Time Between Failure B 4 Op...

Страница 72: ... 3 N Nonvolatile Memory 1 2 O Optical Specifications B 1 CCD Type B 2 Focal Distance B 2 Lateral Motion Sensitivity B 1 Light Source B 2 MRD Minimum Reflective Difference B 2 Pitch Angle B 2 Pitch Roll 3 7 Scan Rate B 1 Scan Width B 1 Scanning Direction B 1 Skew Angle B 2 Skew Yaw 3 7 Specular Reflection 3 7 Tilt 3 7 Tilt Angle B 2 P Peak Detectors and Comparator A 2 Power Requirements See Power S...

Страница 73: ...ry 4 15 Interleaved 2 of 5 Status 4 15 No Read Message Status 4 15 Preamble Status 4 15 Read Timeout Status 4 15 Scan Rate Status 4 15 Trigger Enable Mode Status 4 15 UPC EAN Status 4 15 Votes Status 4 15 Operational Commands 4 3 Disable Decoding Command 4 3 Enable Decoding Command 4 3 Reset Command 4 3 Save Configuration Command 4 4 Serial Trigger 1 Command 4 4 Serial Trigger 2 Command 4 4 Serial...

Страница 74: ...Index 4 ...

Страница 75: ...es and electricity the responsibility to protect it from static damage is solely that of the user The warranty is valid only if the wand has not been tampered with or serviced by any party unauthorized by Welch Allyn Inc as a repair facility THE WARRANTIES SET FORTH HEREIN ARE IN LIEU OF ANY AND ALL OTHER WARRANTIES EXPRESSED OR IMPLIED INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A...

Страница 76: ...Skaneateles Falls New York 13153 0187 3700 TM 4619 Jordan Road Rev E P O Box 187 ...

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