Metrologic MS7120 Series User manual

METROLOGIC INSTRUMENTS, INC.
MS7120 Series Fixed Projection
Laser Scanner
Installation and User’s Guide
MLPN 2408
Printed in USA
December 1998

ii
Locations
USA Corporate Headquarters Europe
Metrologic Instruments, Inc. Metrologic Instruments GmbH
90 Coles Road Dornierstrasse 2
Blackwood, NJ 08012 82178 Puchheim b.
Customer Service: 1-800-ID-METRO Munich, Germany
Tel: [phone] Tel: [phone]
Fax: [phone] Fax: [phone]
[email protected] [email protected]
www.metrologic.com
ASIA
South America Metrologic Asia (PTE) Ltd.
Metrologic Instruments 31, Khaki Bukit Road 3
Rua Flórida, 1.821-5°Andar-Brooklin #05-08 Techlink
CEP 04571-090, São Paulo-SP, Brasil Singapore 417818
Outside Brazil: Tel: [phone]
Tel: [phone] Fax: [phone]
Fax: [phone] [email protected]
[email protected]
In Brazil:
Tel: [phone]
Fax: [phone]
[email protected]
Copyright
© 1998 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
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
Scanner Parts .................................................. 8
Audible Indicators ............................................. 9
Failure Modes ......................................... 10
Visual Indicators .............................................. 11
Labels ....................................................... 12
Depth of Field Specifications .................................... 13
Optimal Low Density Depth of Field ...................... 13
Optimal High Density Depth of Field ...................... 13
Close Depth of Field .................................... 14
Normal Depth of Field .................................. 14
Far Depth of Field ...................................... 15
Minimum Bar Code Element From Scanner Face .................... 16
Optimal Low Density Depth of Field ....................... 16
Optimal High Density Depth of Field ...................... 17
Close Depth of Field .................................... 18
Normal Depth of Field .................................. 19
Far Depth of Field ...................................... 20
Maintenance .................................................. 21
Troubleshooting Guide ...................................... 22-26
RS-232 Demonstration Program .................................. 27
Application and Protocols ....................................... 28

iv
Table of Contents (continued)
Appendix A
Design Specifications 29, 30
Appendix B
Default Settings 31-35
Appendix C
Pin Assignments 36-38
Appendix D
Warranty and Disclaimer 39, 40
Appendix E
Notices 41, 42
Index 43, 44

1
Introduction
Orbit™ is an aggressive, omnidirectional laser bar code scanner. Light-weight
and rugged, Orbit is small in size, but BIG in performance. Designed for
applications where counter space is limited, Orbit is the ideal presentation
scanner for retail, convenience, liquor and specialty stores. In addition, Orbit’s
unique, contoured shape allows it to be picked-up and used as a hand-held
scanner when scanning large or bulky items.
Engineered with a large, easy-to-find optimal scan area, Orbit increases the
first pass read rate for maximum productivity. The scanning head can be tilted
vertically a full 30 for added flexibility when scanning various sized objects.
o
These features increase the scanning throughput without increasing the
scanner size.
SCANNER INTERFACE
7120-41 Full RS-232C and Light Pen Emulation
7120-47 Keyboard Wedge, Stand-Alone Keyboard and
RS-232 Transmit/Receive
7120-9 OCIA and RS-232 Transmit/Receive
7120-11 IBM 46XX/RS-232C
7120-67 Full RS-232C and Light Pen Emulation
Orbit offers a great deal of features to the consumer:
‚Fully automatic scanning operation
‚PowerLink compatible
‚Data editing
‚7 beeper tones
‚Programmable depth of field
‚Easy programming

2
Scanner and Accessories
The following is a list of the parts included in the MS7100 kit.
!MS7120 Laser Scanner - Refer to page 28 for available
communication protocols
!Power Transformer AC in 120V, 220V- 240V Continental
European or 220V- 240V UK. DC in regulates 5.2V@650mA
(MLPN45593/45591/45592)
RS-232, Light Pen, OCIA and 46xx scanners:
!PowerLink cable with built in power jack:
Standard - MLPN 54xxx* - 2.1m (7') straight cord, short strain relief
or
Optional - MLPN 53xxx* - 2.7m (9') coiled cord, long strain relief
*xxx specifies connection to the host
Keyboard Wedge Scanners:
!Keyboard Wedge PowerLink Cable with a 5-pin
DIN female connector and a 6-pin mini DIN male
connector (MLPN 19763)
!Adapter Cable with a 5-pin DIN male
connector and a 6-pin mini DIN female
connector (MLPN 19716)
Available on the Metrologic Website (www.metrologic.com):
!MetroSelect Programming Guide (MLPN 2407)
!MS7120 User’s and Installation Guide (MLPN 2408)
Options
!Counter/Wall Mount Kit (MLPN 45619)
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 Depart-
ment at 1-800-ID-METRO or 1-800-436-3876.

3
Quick Start
1.) Plug in the scanner. When the MS7120 is ready to scan,
the green LED will turn on, then the red LED will flash
and the scanner will beep once. (the red LED will
remain on for the duration of the beep).
2.) The scanner is shipped from the factory programmed with
default settings. To configure the MS7120 scanner to
meet the host system’s specific needs, refer to the Metro-
Select Programming Guide (MLPN 2407) for instructions
on how to enter the program mode and to select the
appropriate bar codes.

4
Operational Test
Metrologic recommends using the external power supply provided with the
scanner when operating the MS7120. When using power supplied by the host,
the host system should supply a minimum of 250 mA of current @ 5VDC.
Keyboard Wedge Scanners:
1. Connect the 10-pin modular plug of the PowerLink cable into the
scanner jack. Connect the other end of the PowerLink Y-type cable
to the PC. Connect the 5-pin female DIN side of the Y-type cable
into the keyboard connector on the PC and connect the 6-pin male
mini-DIN side into the PC.
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. Listen for a single beep that indicates the scanner is ready for use.
(steady green LED and the red LED will flash once)
RS-232, Light Pen, OCIA and 46xx scanners:
1. Connect the 10-pin modular plug of the PowerLink cable into the scanner
jack. Connect the other end of the PowerLink cable (the 9-pin D-type
connector) to the PC.
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. Listen for a single beep that indicates the scanner is ready for use.
(steady green LED and the red LED will flash once)

5
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. Make the necessary PowerLink cable connections to the scanner and
the host.
3. Connect the external transformer into the power jack on the Power Link
cable.
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.) Connect AC power to the
transformer.
5. Turn on the host system.
NOTE:
a. When the scanner first receives power, the green LED will
turn on. Then the scanner will beep once and the red LED
will flash simultaneously.
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.

6
Scanner Installation: Powered by Host Device
The MS7120 scanner interfaces terminate to a 10-pin modular jack. Connect
the 10-pin modular plug of the PowerLink cable into the jack then connect the
other end of the PowerLink cable to the host. Refer to Appendix C page 36 for
pin assignments.
1. Turn off the host system.
2. Make the necessary PowerLink cable connections to the scanner and the
host.
3. Turn on the host system.
NOTE:
a.When the scanner first receives power, the green LED will turn
on. Then the scanner will beep once and the red LED will
flash simultaneously.
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.

7
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 MS7120 Keyboard Wedge scanner interface terminates to a 10-pin
modular jack. Connect the 10-pin modular plug of the PowerLink cable
into the jack. The Power Link cable is terminated with a 5-pin DIN
female connector on one end, and a 6-pin mini DIN male on the other.
Metrologic will supply an adapter cable with a 5-pin DIN male
connector on one end and a 6-pin mini DIN female connector on the
other. According to the termination required, connect the appropriate
end of the adapter cable to the PowerLink cable, leaving the necessary
termination exposed for connecting to the keyboard and the keyboard
port on the PC. Refer to Appendix C page 38 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. Connect the scanner as described in step 1. Connect the external
transformer into the power jack on the Power Link cable. 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 MS7120-47
Keyboard Wedge applications. Powering the MS7120-47 directly from the com-
puter 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.

8
Green and Red LEDs: During normal operation, the green
LED is on. This indicates that the laser is on and the unit is
ready to scan. On a successful read of a bar code, the red LED
will turn on. After communication to the host is complete, the
red LED will turn off. The LEDs are also used as diagnostic
indicators and mode indicators. Refer to pages 9-11 for details.
ú
Orbit Face: þ
Tilts 30 vertically
o
for variable position-
ing of the scan pattern.
Output Window: º
Laser light emits
from this aperture. ü
Cable Connection:
The MS7120 scanner
has a 10-pin modular
jack. The 10-pin
modular plug on the
PowerLink cable
connects into the
MS7120 jack. Refer to
pages 5-7 for specific
protocol PowerLink
cable connections.
Side View
Top View
Scanner Parts

9
Audible Indicators
When the MS7120 scanner is in operation, it provides audible feedback.
These sounds indicate the status of the scanner. Eight settings are available for
the tone of the beep (normal, 6 alternate tones and no tone). To change the
tone, refer to the MetroSelect Programming Guide MLPN 2407.
One Beep
*
When the scanner first receives power, the green LED will turn
on, then the red LED will flash and the scanner will beep once.
(The red LED will remain on for the duration of the beep.) The
scanner is now ready to scan.
When the scanner successfully reads a bar code, the red LED
will flash and the scanner beeps once (if programmed to do so).
If the scanner does not beep once and the red light does not
flash, then the bar code has not been successfully read.
Razzberry Tone
This is a failure indicator. Refer to failure modes page 10.
Three Beeps - during operation
***
During operation of the scanner, the red LED will flash while
the scanner simultaneously beeps three times (while going into
programming mode).
The red LED will continue to flash until the unit exits program
mode. Upon exiting program mode, the scanner will beep three
times and the red LED will stop flashing. When configured, 3
beeps can also indicate a communications timeout during normal
scanning mode.
When using one-code-programming, the scanner will beep
three times (the current selected tone), followed by a short
pause then by a high tone and a low tone. This tells the user
that the single configuration bar code has successfully con-
figured the scanner.
Three Beeps - on power up
This is a failure indicator. Refer to failure modes page 10.

10
Failure Modes
Flashing Green and One Razzberry Tone
This indicates the scanner has experienced a laser
subsystem failure. Return the unit for repair at an
authorized service center.
Flashing Red and Green and Two Razzberry
Tones
This indicates the scanner has experienced a motor
failure. Return the unit for repair at an authorized
service center.
Continuous Razzberry Tone with both LEDs off
If, upon power up, the scanner emits a continuous razz-
berry tone, then the scanner has an electronic failure.
Return the unit for repair at an authorized service
center.
Three Beeps - on power up
***
If the scanner beeps 3 times on power up then, the non-
volatile memory that holds the scanner configuration
has failed. Return the unit for repair at an authorized
service center.

11
Visual Indicators
There are a red LED and a green LED on the head of the Orbit MS7120.
When the scanner is on, the flashing or stationary activity of the LEDs
indicates the status of the current scan and the scanner.
No Red or Green LED
The LEDs will not be illuminated if the scanner is not receiving
power from the host or transformer.
Steady Green
When the laser is active, the green LED is illuminated. The green
LED will remain illuminated until the laser is deactivated.
During the power save mode, the laser will turn on and turn off.
During this period, the green LED remains illuminated.
Steady Green and Single Red Flash
When the scanner successfully reads a bar code, the red LED will
flash and the scanner will beep once. If the red LED does not flash
or the scanner does not beep once, then the bar code has not been
successfully read.
Steady Green and Steady Red
After a successful scan, the scanner transmits the data to the host
device. Some communication modes require that the host inform the
scanner when data is ready to be received. If the host is not ready to
accept the information, the scanner’s red LED will remain on until
the data can be transmitted.
Steady Green and Flashing Red
This indicates the scanner is in program mode. A razzberry tone
indicates that an invalid bar code has been scanned in this mode.
Steady Red, Green off
This indicates the scanner may be waiting for communication from
the host.

12
Labels
Each scanner has labels on the bottom of the unit. One label contains
information such as the model number, date of manufacture, serial number and
notes that the device is a Class IIa laser product. The other label states the
device is an LASERKLASSE 1 product. The following are examples of these
labels:

13
Depth of Field Specifications
(based on 100% UPC bar codes)
Optimal Low Density Depth of Field (default)
Optimal High Density Depth of Field

14
Depth of Field Specifications (continued)
(based on 100% UPC bar codes)
Close Depth of Field
Normal Depth of Field

15
Depth of Field Specifications (continued)
(based on 100% UPC bar codes)
Far Depth of Field

16
Depth of Field by Minimum Bar Code Element Width
Optimal Low Density Depth of Field (default)