Hand Held Products 3700 CCD manual Scanteam 3700 Glossary

Page 65

SCANTEAM 3700 GLOSSARY

AIM– is the Automatic Identification Manufacturers, Inc. AIM is an industry organization that supports the application of all varieties of automatic identification technology including bar codes. An important contribution has been AIM’s efforts to standardize bar code symbologies and the way they are identified in data communication.

Algorithm– is a finite set of rules to solve a problem in a measurable number of steps. It is a predetermined numerical calculation which is permanently programmed into the data system’s memory to provide a desired result (bar code decoding, for example).

Ambient Light Immunity– describes the ability of a scanner to maintain its specified scanning ability in the presence of external light sources. Usually, scanners are specified for incandescent, florescent, and sunlight.

Analog– (used in contrast to Digital) describes a signal whose amplitude is directly proportional to the physical factors responsible for the signal. An example of this is an optical sensor’s output depicting the bars and spaces of a bar code as it “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.

Asynchronous Serial Communication– is a form of data communication transmission which occurs without a regular or predictable time relationship. The transmission of data characters is one at a time.

Autodiscriminates– refers to the ability of the SCANTEAM 3700 to recognize and decode multiple bar code symbologies.

Bar code– is an array of parallel bars and spaces arranged in a predetermined pattern to represent data elements called characters.

Baud Rate– is a means of expressing data transmission speed, where “baud” equals the number of signal events per second (roughly equivalent to bits per second).

Beam Velocity– is the speed of a laser’s scanning beam on the target.

Bidirectional– refers to the ability of a scanner to scan a bar code in either a left–to–right or right–to–left direction.

Bit– is a contraction of “binary digit,” the smallest unit of information used in data processing.

Glossary–1

Image 65
Contents SCANTEAMR3700 CCD Disclaimer Patents Page Table of Contents Chapter Configuring the Scanteam Serial Commands Summary Technical SpecificationsCCD Operation and Bar Code Scanning Ascii Conversion TableList of Tables Overview of the Technical Manual PrefaceIntended Audience Related Publications Scanteam 3700 Hardware Description Scanteam 3700 DescriptionIntroduction Nonvolatile Memory Scanteam 3700 Software DescriptionInterface Port Basic System Operation System Hardware DescriptionMechanical Layout General CharacteristicsAudible Indicator Single Modular Input /Output/Power PortOperating Theory Mounting InsertsAsynchronous Serial Ascii Interface Scanner/Host CommunicationCommunications Port Auxiliary Trigger Hardwire PinoutsPower Requirements General Preparation for Use SET-UP and InstallationPreparation Set-up Procedure for EvaluationSet-up Checklist To setup serial communications to the scanner Set-up ProcedureInstallation in the Host Instrument Top View Examples of Scanteam 3700 Barcode Orientation Pitch or Roll Scanner Illumination Clearance Preparation Configuring the ScanteamData string Command ConventionsCommand Format Reset Command a Operational CommandsDisable Decoding Command DC4 Enable Decoding Command DC2Save Configuration Command Z Serial Trigger CommandSave Configuration 3C 5A 3E Serial Trigger 3C 31 3EConfiguration Commands Option Set Communications Port Command KaCommand Ka baud, parity, stop bits, data bits Parameter Scanteam 3700 Code ID Values Command Kd enable, data ParameterCode ID Value Definition Command Ke enable, data Parameter Set Postamble Command KeCommand Kf mode Parameter Set Communications Protocol Command KfSet Read Timeout Command Kh Set Trigger Mode Command KgCommand Kg modeglobal, modeport1, modeport2, # Parameter Set Votes Command Km Set No Read Message Command KkCommand Kk enable, data Parameter Set Code 39 Command Kp Command Ks enable UPC, enable EAN Parameter Set UPC A/E, EAN 8/13 Command KsSet Scan Rate Command Kv Set Code 128 Command KtSet Beeper Mode Command Ku Configuration Status Query Commands Default Configuration Symbology Settings Default Operating ParametersDefault Configuration Settings Maintenance SERVICE/TECHNICAL AssistanceTroubleshooting Guide Troubleshooting HintsTroubleshooting Checklist Diagnostic ProcedureProblem Possible Cause Solution Scanteam 3700 Troubleshooting ChecklistProduct Service Department Obtaining Factory ServiceHelp Desk Service Under WarrantyOut Of Warranty Service Followed during installation Chapter Scanteam 3700 Removal/ReplacementService/Technical Assistance Objectives Scanning and Decoding a Bar Code SymbolCCD Operation and BAR Code Scanning a Peak Detectors and Comparator LED ReflectorCCD Sensor Timing Sequence MicroprocessorBar Code Scanning Closer Look At Bar Code SymbolsBar Code Basics and Scanning Tips Scanner Performance Technical SpecificationsOptical Specifications Skew Angle MRD minimum reflective difference 37.5%Pitch Angle Light Source IlluminationElectrical Specifications Mechanical Specifications Environmental SpecificationsBar Code Symbol Specifications To Host System Scanteam 3700 Interface CableCommand Format Serial Commands SummaryIndividual Configuration Query CommandFormatKa? Kd?Symbology Configuration Default Settings Default Configuration SettingsConfiguration CommandDefault Settings Serial Commands Summary Control Function Definitions Ascii Conversion TableAscii Conversion Table Scanteam 3700 Glossary Glossary-2 Glossary-3 Glossary-4 Glossary-5 Glossary-6 Index Scanteam Index-3 Index-4 Scanteam 3700 Limited Warranty Jordan Road Box Skaneateles Falls, New York 3700/TM Rev E