Metrologic MS6720 User manual

METROLOGIC
®
INSTRUMENTS, INC.
MS6720 Hand-Held Laser Scanner
Installation and User’sGuide

ii
LOCATIONS
CORPORATE HEADQUARTERS
NORTH AMERICA
EUROPEAN, MIDDLE EAST & AFRICAN
HEADQUARTERS
USA, NEW JERSEY GERMANY, MUNICH
Metrologic Instruments, Inc. Metrologic Instruments GmbH
Tel: 1-800-ID-METRO Fax: [phone] Tel: [phone] Fax: [phone]
Email: [e-mail] Email: [e-mail]
SOUTH AMERICA, BRAZIL SÃO PAULO GERMANY, MUNICH
Metrologic do Brasil Ltda. Metrologic Instruments GmbH
Tel: [phone] Fax: [phone] Tel: [phone] Fax: [phone]
Email: [e-mail] Email: [e-mail]
SOUTH AMERICA, OUTSIDE BRAZIL SÃO PAULO ITALY, BOLOGNA
Metrologic South America Metrologic Instruments Italia srl
Tel: [phone] Fax: [phone] Tel: [phone] Fax: [phone]
Email: [e-mail] Email: [e-mail]
ASIA, SINGAPORE FRANCE, PARIS
Metrologic Asia (Pte) Ltd Metrologic Eria France SA
Tel: [phone] Fax: [phone] Tel: [phone]
Email: [e-mail] Fax: [phone]
Email: [e-mail]
CHINA, SUZHOU
Metro Technologies Co., Ltd. SPAIN, MADRID
Tel: [phone] Fax: [phone] Metrologic Eria Ibérica, SL
Email: [e-mail] Tel: [phone] Fax: [phone]
Email: [e-mail]
Metro Sales Office
Tel: [phone] Fax: [phone] Metrologic Europe Repair Center (MERC)
Email: [e-mail] Metrologic Eria Ibérica, SL
Tel: [phone] Fax: [phone]
JAPAN, TOKYO
Metrologic Japan Co., Ltd. UNITED KINGDOM, BASINGSTOKE
Tel: [phone] Fax: [phone] Metrologic Instruments UK Limited
Email: [e-mail] Tel: [phone]
Fax: [phone]
Email: [e-mail]
RUSSIA, MOSCOW
Metrologic Russia
Tel: [phone] Fax: [phone]
Email: [e-mail]
Copyright
© 2003 by Metrologic Instruments, Inc. All rights reserved. No part of this work may be reproduced, transmitted, or stored in
any form or by any means without prior written consent, except by reviewer, who may quote brief passages in a review, or
provided for in the Copyright Act of 1976.
Products and brand names mentioned in this document are trademarks of their respective companies.
.

iii
TABLE OF CONTENTS
Introduction................................................................................................................1
Scanner and Accessories............................................................................................2
Quick Start .................................................................................................................3
Operational Test.........................................................................................................4
MS6720 Installation: Powered by External Power Supply ........................................5
MS6720 Installation: Powered by Host Device .........................................................6
MS6720-47 Keyboard Wedge Installation to the PC .................................................8
MS6720 Optional Stands ...........................................................................................9
Scanner Parts............................................................................................................11
Audible Indicators....................................................................................................12
Failure Modes ..........................................................................................................13
Visual Indicators......................................................................................................14
Scanner Labels.........................................................................................................15
Maintenance.............................................................................................................15
Depth of Field Specifications
Normal Depth of Field.........................................................................................16
Short Depth of Field ............................................................................................17
Extended Depth of Field......................................................................................18
Optional Depth of Field.......................................................................................19
Normal Depth of Field.........................................................................................20
Short Depth of Field ............................................................................................20
Scan Pattern Specifications
Projection Axis ....................................................................................................21
Omnidirectional Scan Volume.............................................................................21
Cross-Sectional Scan Pattern...............................................................................22
Troubleshooting Guide ............................................................................................23
Applications and Protocols ......................................................................................28
Appendix A
Design Specifications ..........................................................................................29
Appendix B
Default Settings ...................................................................................................31

iv
TABLE OF CONTENTS
Appendix C
Pin Assignments for the Coil Cable.....................................................................35
Pin Assignmentsf or the MCA951.......................................................................36
Pin Assignmentsf or the MS6720-47 Keyboard Wedge Cable............................37
Appendix D
Limited Warranty ................................................................................................38
Appendix E
Notices.................................................................................................................39
Appendix F
Patents .................................................................................................................41
Index ........................................................................................................................42

1
INTRODUCTION
The MS6720 is the first laser bar code scanner to truly bridge the gap
between omnidirectional fixed projection and hand-held scanners. It
incorporates fixed projection performance and patented 20-line scan pattern
into the comfortable, ergonomic styling of our popular hand-helds.
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 comprehensive
scan pattern make the MS6720 the perfect choice for many applications.
For increased flexibility there are three optional stands available. The
stationary stand is ideal for applications where the MS6720 is being used as
a hand-held scanner. Or if a customer application requires more in stand
scanning Metrologic’s adjustable stand provides 7 rotational and 9 tilting
positions while still providing the option for hand-held scanning. If
countertop space is an issue there is an optional bracket for a wall mounting
that can be used with the adjustable stand cup.
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.
Scanner Interface
MS6720-9 OCIA (OCIA)
MS6720-11 IBM (46XX)
MS6720-14 RS-232 (232)
MS6720-15 Light Pen Emulation (LTPN)
MS6720-47 Keyboard Wedge (KBW)

2
SCANNER AND ACCESSORIES
The following is a list of parts that may or may not be included in a
MS6720 kit.
•MS6720 Hand-Held Laser Scanner
•AC to DC Power Transformer – Regulated 5VDC @ 300 mA output
•One of the following options may be included:
•120V United States [MLPN 46-46010]
•220V Continental European [MLPN 46-46009]
•240V United Kingdom [MLPN 46-46008]
•Stand
•One of the following options may be included:
•Stationary Stand [MLPN 45-45429]
•Adjustable Stand [MLPN 45-45967]
•Wall Mounting Kit [MLPN 45-45968]
•Installation and User’s Guide [MLPN 00-02368]
•ScanSelect®Scanner Programming Guide [MLPN 00-02186] or
MetroSet2 CD
RS-232, Light Pen, some OCIA and some 46xx
•MCA (Metrologic Connector Adapter) [MLPN MCA951]
•For direct connect application (No Power Transformer)
4 position MCA ground jumper [MLPN 51-51191]
Keyboard Wedge Scanners:
•Adapter Cable with a 5-pin DIN male connector on
One end and a 6-pin mini DIN female connector
On the other [MLPN 45-45927]
•For direct connect application (No Power Transformer)
4 position direct power jumper [MLPN 52-52332]
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.

3
QUICK START
1. Plug in the scanner. The red LED will come on, the green LED will
flash once and the unit will beep simultaneously.
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 ScanSelect®Programming Guide
[MLPN 00-02186] or the help files provided with MetroSet2 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.

4
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
Adapter).
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 outlet should be installed near the
equipment and be easily accessible.
3. Both LEDs come on together along with the beep (the green LED only
flashes).
The scanner can be powered in two ways:
•by an External Power Supply* or
•by the Host Device** i.e. the PC for the MS6720 with a Built-
in PC Keyboard Wedge interface.
Caution:
*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.
**To maintain compliance with standard CSA C22.2 No. 950/UL 1950 and norm EN 60950, the power
source should meet applicable performance requirements for a limited power source.