Metrologic Ms6720 User manual

MS6720 Hand-Held Laser Scanner

Installation and User’s Guide

MLPN 2368

Printed in USA

October 1998

iii

Table of Contents

Introduction ................................................... 1

Scanner and Accessories ......................................... 2

Quick Start .................................................... 3

Operational Test ............................................... 4

Scanner Installation: Powered by External Power Supply ............... 5

Scanner Installation: Powered by the Host Device ..................... 6

Scanner Installation: to the PC for the Scanner with Built-In

PC Keyboard Wedge Interface .................................... 7

The MS6720 Stand ............................................. 8

Scanner Parts .................................................. 9

Audible Indicators ............................................ 10

Failure Modes ......................................... 11

Visual Indicators .............................................. 12

Label ....................................................... 13

Depth of Field Specifications .................................... 14

Normal Depth of Field .................................. 14

Short Depth of Field .................................... 15

Extended Depth of Field ................................. 16

Optional Depth of Field ................................. 17

Automatic Turn-On Specifications ................................ 18

Normal Depth of Field .................................. 18

Short Depth of Field .................................... 18

Scan Pattern Specifics .......................................... 19

Projection Axis ........................................ 19

Omnidirectional Scan Volume ............................ 19

Cross-Sectional Scan Pattern .................................... 20

Maintenance .................................................. 21

Troubleshooting Guide ..................................... 22 - 26

Application and Protocols ....................................... 27

Appendix A

Design Specifications 28, 29

Appendix B

Default Settings 30 - 33

Appendix C

Pin Assignments 34 - 36

Appendix D

Warranty and Disclaimer 37, 38

Appendix E

Notices 39, 40

Appendix F

Patents 41

Index 42 - 44

Introduction

The MS6720 is the first laser bar code scanner truly to bridge the gap between

omnidirectional fixed projection and hand-held scanners. It incorporates fixed

projection performance and our patented 20-line scan pattern into a

comfortable, ergonomic styling of our popular hand-helds. With this design,

Metrologic has engineered a scanner that transcends any other on the market

today.

The MS6720 utilizes a unique, patented infrared sensor and control scheme

for hands-free projection scanning and fatigue reduced hand-held operation.

Whether operators choose to present small items to the scanner or transport

the lightweight scanner to bulkier items, the compact size and comprehen-sive

scan pattern make the MS6720 the perfect choice for many applica-tions.

The superior performance and features the world has come to expect from

Metrologic were packaged into the comfortable case only after tests and

approvals by hands of all sizes. With 84 degrees rotation and 10 locking

positions through 45 degrees of tilt, the stand for the MS6720 is also ergo-

nomically and application friendly. Mounting was designed to provide an

adequate distance for scanning between the scanner face and the counter top at

all times. When fully tilted, the face of the unit remains a full five inches from

the counter. In addition, the modular construction thoughtfully includes a

removable wall mount cap.

As with all Metrologic hand-held scanners, the MS6720 features both short-

range and long-range activation, user-friendly programming, reliability and

versatility. Operators are sure to appreciate the convenience and flexibility of

the MS6720, offered at an unbeatable price.

Scanner and Accessories

The following is a list of the parts included in the MS6720 kit.

!MS6720 Hand-Held Laser Scanner - Refer to page 27 for

available communication protocols

!Stand (MLPN 45967) - Refer to page 8 for available kits

!Optional Power Transformer 120V or 220V or 240V (AC in)

5V (DC out) @300mA regulated (MLPN 46010/46009/46008)

for applications where host power is not available

!Installation and User’s Guide (MLPN2368)

!ScanSelect™ Scanner Programming Guide

(MLPN 2186)

RS-232, Light Pen, some OCIA and some 46xx scanners:

!MCA (Metrologic Connector Adaptor) (MLPN MCA951)

!For direct connect application (No Power Transformer)

4 position MCA ground jumper (MLPN 51191)

Keyboard Wedge Scanners:

!Adaptor Cable with a 5-pin DIN male connector on one

end and a 6-pin mini DIN female connector on the other

(MLPN 19716)

!For direct connect application (No Power Transformer)

4 position direct power jumper (MLPN 52332)

for host powered applications

Other items may be ordered for the specific protocol being used. To order

additional items, contact the dealer, distributor or call Metrologic’s

Customer Service Department at 1-800-ID-METRO or 1-800-436-3876.

Quick Start

1.) Plug in the scanner. Both LEDs come on

together along with the beep-the green LED

only flashes.

2.) The scanner is shipped from the factory

programmed with default settings.

To configure the MS6720 scanner to

meet the host system’s specific needs,

refer to the Programming Guide

(MLPN 2186) for instructions on how

to enter the program mode and to

select the appropriate bar codes.

Note: Any time the Load Defaults bar code is scanned the MS6720

is configured for an RS-232 interface. If a RS-232 is not being

used, scan at least one other bar code to enable Keyboard

Wedge, OCIA, Light Pen or 46xx. Refer to sections B and F

in the ScanSelect Programming Guide (MLPN 2186).

Operational Test

If the scanner is to receive power from an external power supply, test the

scanner before it is connected to the host system.

Keyboard Wedge Scanners:

1. Plug one end of the coil cable into the keyboard connector on the PC.

Then plug the keyboard connector into the other end of the coil cable.

Plug in the external transformer.

2. Check the AC input requirements of the power supply to make sure the

voltage matches the AC outlet. Connect AC power to the transformer.

3. Both LEDs come on together along with the beep-the green LED

only flashes.

RS-232, Light Pen, OCIA and 46xx scanners:

1. Plug the scanner’s coil cable into the MCA (Metrologic Connector

Adaptor).

2. Check the AC input requirements of the power supply to make sure the

voltage matches the AC outlet. Plug the power supply into the MCA and

the appropriate AC outlet. (the socket-outlet shall be installed near the

equipment and shall be easily accessible.)

3. Both LEDs come on together along with the beep-the green LED

only flashes.

Note: Two methods that the scanner can be powered are as follows:

External Power Supply or Host Device ie the PC for the

MS6720 with a Built-in PC Keyboard Wedge interface.

MCA

Female

9-pin D

10 Position Modular Connector

at the end of the Coil Cable

Scanner Installation: Powered by External Power Supply

To maintain compliance with applicable standards, all circuits connected to the

scanner must meet the requirements for SELV (Safety Extra Low Voltage)

according to EN 60950.

1. Turn off the host system.

2. If using a communication cable, connect the cable to the correct port on

the host device and the MCA (Metrologic Connector Adaptor). If the

host device is an IBM compatible PC with a male 9-pin serial port,

connect the MCA to the port.

3. Plug the scanner’s coil cable into the MCA.

4. Check the AC input requirements of the power supply to make sure the

voltage matches the AC outlet. (the socket-outlet shall be installed near

the equipment and shall be easily accessible.) Plug the power supply

into the MCA and the AC outlet.

5. Turn on the host system.

Note: a. When the scanner first receives power, both LEDs come on

together along with the beep-the green LED only flashes.

b. Plugging the scanner into the serial port of the PC does not

guarantee that scanned information will appear at the PC. A

software driver and correct configuration setting are also

required for proper communication to occur.

MCA

Female

9-pin D

MCA

MS6720 coil cable MCA host

Scanner Installation: Powered by Host Device

If the host system supplies +5VDC power to the scanner, reposition the internal jumper

within the MCA (Metrologic Connector Adaptor) before connecting the scanner to the

host device. In addition, plug the 4 position ground jumper into the power supply

connector located on the side of the MCA.

1. Make sure the MCA is not connected to the scanner,

communication cable or host and unfasten the case.

2. Reposition the shunt on JP1 to pins 1 and 2 and

close the case.

Note: The factory setting of jumper 1 (JP1) is on pins 2

and 3. To direct power for the scanner from the

host device, position the jumper on pins 1 and 2.

3. Plug the 4 position ground jumper into the power

supply connector.

4. Turn off the host system.

5. If using a communication cable, connect the

cable to the correct port on the host device

and the MCA. If the host device is an IBM

compatible with a male 9-pin serial port,

connect the MCA to the port. There is an

optional cable (MLPN 51236) that is avail-

able for IBM PC applications where the

MCA will not fit at the back of the computer.

6. Plug the scanner’s coil cable into the MCA.

7. Turn on the host system.

MS6720 »» “Y” coil cable ºº PC

Scanner Installation to the PC for the Scanner with Built-in

PC Keyboard Wedge Interface

To maintain compliance with applicable standards, all circuits connected to the

scanner must meet the requirements for SELV (Safety Extra Low Voltage)

according to EN 60950.

1. The “Y”coil cable is terminated with a 5-pin DIN female connector

on one end, and a 6-pin mini DIN male on the other. Also included

with the MS6720 is an adaptor cable with a 5-pin male DIN on one

end and a 6-pin female mini DIN on the other to mate to a specific

keyboard. According to the termination required, connect the appro-

priate end of the adaptor cable to the coil cable, leaving the neces-

sary termination exposed for connecting to the keyboard and the

keyboard port on the PC. Refer to Appendix C page 36 for pin

assignments.

2. If the PC is on, exit the application and turn the PC off.

3. Disconnect the keyboard from the PC.

4. Plug one end of the coil cable into the keyboard connector on the PC.

Then plug the keyboard connector into the other end of the coil cable.

Plug in the external transformer. Refer to Manufacturer’s

Recommendation below. Connect AC power to the transformer.

5. Power up the PC.

Manufacturer’s Recommendation:

Metrologic recommends the use of an external power supply with MS6720-47 Key-

board Wedge applications. Powering the MS6720-47 directly from the computer

keyboard connector could interfere with the operation of the scanner or the computer.

Not all computers supply the same current through the keyboard port, this explains why

a scanner would work on one computer and not another.

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Table of contents

Metrologic MS6720 User manual

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