Symbol Technologies LS 1000 - page 77

5-4

LS 1000 Series Product Reference Guide

SCANNER - An electronic device used to scan bar code symbols and produce

a digitized pattern that corresponds to the bars and spaces of the symbol. Its

three main components are:

1. Light source (laser or photoelectric cell) - illuminates a bar code.

2. Photodetector - registers the difference in reﬂected light (more light

reﬂected from spaces).

3. Signal conditioning circuit - transforms optical detector output into a

digitized bar pattern.

SCANNING MODE - The scanner is energized, programmed, and ready to

read a bar code.

SCANNING SEQUENCE - A method of programming or conﬁguring

parameters for a bar code reading system by scanning bar code menus.

SELF-CHECKING CODE - A symbology that uses a checking algorithm to

detect encoding errors within the characters of a bar code symbol.

START/STOP CHARACTER - A pattern of bars and spaces that provides the

scanner with start and stop reading instructions and scanning direction. The

start and stop characters are normally to the left and right margins of a

horizontal code.

SYMBOL - A scannable unit that encodes data within the conventions of a

certain symbology, usually including start/stop characters, quiet zones, data

characters, and check characters.

SYMBOLOGY - The structural rules and conventions for representing data

within a particular bar code type (e.g. UPC/EAN, Code 39).

UPC - Universal Product Code. A relatively complex numeric symbology . Each

character consists of two bars and two spaces, each of which can be any of

four widths. The standard symbology for retail food packages in the United

States.

coverBook Page 4 Monday, December 1, 1997 2:19 PM

Contents

Main LS 1000 Product Reference Guide Page Factory Service Symbol Support Center SYMBOL SUPPORT CENTER 1-800-653-5350 Contents Chapter 4. Programming The LS 1004 Chapter 3. Maintenance & Specifications Chapter 2. Scanning Page Chapter 1 Introduction and Set-up Introduction Page Set-Up LS 1000 Product Reference Guide: Chapter 1, Introduction and Setup Switching Cables Connecting to a Host For external power operation with Synapse Smart Cable RS-232C Page Page RS-232C (Contd) For battery operation: IBM 468X/9X IBM 468X/9X (Contd) Page Page Ready, Test, Scan Aiming Scan the Entire Symbol Hold at an Angle Page Maintaining the LS 1000 Scanner Recharging a Nickel-Cadmium Battery Changing the Battery Battery Box Operation Maintenance Accessories Optional Accessories Required Accessories What If... 3-6 LS 100x Technical Specications Depth of Field in Inches/Centimeters Figure 3-1. LS 100x Decode Zone LS 100x Decode Zone 3-7 Table 3-1. Technical Specications (LS 1000) 3-8 Table 3-1. Technical Specications (LS 1000) (Continued) 3-9 Table 3-2. Technical Specications (LS 1004) Page Page 3-12 * active low Table 3-4. Pinouts - LS 1004 3-13 Table 3-5. Beeper Indications Page 4-2 4-3 4-4 Scanning Sequence Scanning Sequence Example Errors While Scanning Parameter Descriptions Set Parameter Defaults Host Interface Select Page Page Decode Attempt Time Page Transmit No Decode Message Decode Redundancy Code Types UPC/EAN Convert UPC-E to UPC-A EAN Zero Extend Decode UPC/EAN Supplemental UPC A and E Preamble(s) UPC-E Pream- UPC-A Pream- UPC/EAN Security Level Code 128 Enable/Disable Code 128 Send CODE 128 Function Character Code 39 Page Interleaved 2 of 5 Enable/Disable Code I 2 of 5 Fixed Lengths for Code I 2 of 5 4-22 Fixed Lengths for Code 2 of 5 (contd) I 2 of 5 Modulo 10 Check ITF14/EAN13 Conversion Discrete 2 of 5 Enable/Disable D 2 of 5 D 2 of 5 Modulo 10 Check Fixed Lengths for Code 2 of 5 4-25 Fixed Lengths for Code 2 of 5 (contd) Codabar Data Options Transmit Code ID Character Prex Sufx 4-30 Prex/Sufx Values RS-232C Baud Rate Parity Data Format Stop Bit Select Check Parity Hardware Handshaking Software Handshaking Page 4-37 Hardware and Software Handshaking Sequence HARDWARE HANDSHAKING SOFTWARE HANDSHAKING Page 4-39 Intercharacter Delay Values (contd) Chapter 5 Glossary Page Page Page 6-1 Chapter 6 ASCII Character Set ASCII Character Set Table 6-1. ASCII Character Set 6-2 PPT 4600 Product Reference Guide: Getting Started Table 6-1. (Continued) ASCII Character Set 6-3 PPT 4600 Product Reference Guide: Getting Started Table 6-1. (Continued) ASCII Character Set A-1 Appendix A Errata Table A-1. ASCII Character Set A-2 A-3 Page Tell Us What You Think...