Metrologic MS951 User manual

METROLOGIC INSTRUMENTS, INC.
MS951 Hand-Held Laser Scanner
and MS951 Hand-Held Scanner
with Built-in PC
Keyboard Wedge Interface
Installation and User’s Guide
MLPN 2365
Printed in USA
October 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, Kaki 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.

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Table of Contents
Introduction ................................................. 1, 2
Scanner and Accessories ......................................... 3
Quick Start .................................................... 4
Operational Test ............................................... 5
Scanner Installation: Powered by External Power Supply ............... 6
Scanner Installation: Powered by Host Device ....................... 7
Scanner Installation to the PC
(Scanner with Built-in PC Keyboard Wedge Interface) ............... 8, 9
Configuration of the MS951/MS961-48 Scanner ..................... 10
Version “11" 46X Interface ...................................... 11
Configuring the Scanner with 46XX Interface ................ 12
Operating Characteristics ................................ 12
Configuring the IBM 46XX .............................. 12
IBM 4683 and 4693 Terminals Driven by a 46XX Store Controller
Running 4680.OS or 4690.OS ............................ 13
IBM 4684 and 4694 Systems ............................. 13
Parts of the MS951 ............................................ 14
Components of the MS900 Series Stand ............................ 15
Installation of the MS900 Series Stand .......................... 15, 16
Audible Indicators ............................................. 17
Visual Indicators ........................................... 18-21
Labels ....................................................... 22
IR Sensor Activation ........................................... 23
Scan Field ................................................... 24

iv
MS951 - Depth of Field and Symbol Specification ................ 25, 26
MS961 - Depth of Field and Symbol Specification ................ 27, 28
Maintenance .................................................. 29
Applications and Protocols ...................................... 29
Appendix A
MS951 Hand-Held Laser Scanner Specifications .......... 30, 31
MS951 Hand-Held Laser Scanner w/KBW Specifications ... 32, 33
Appendix B
Default Settings ..................................... 34-38
Appendix C
Pin Assignments for the Coil Cable ........................ 39
Pin Assignments for the MCA (DEC9S) .................... 40
Pin Assignments for the 5-pin DIN and 6-pin DIN (KBW) ..... 41
Appendix D
Warranty and Disclaimer ............................. 42, 43
Appendix E
Notices ........................................... 44, 45
Appendix F
Patents ............................................... 46
Index .................................................... 47, 48

1
Introduction
The scanning process is initiated by an infrared device (ScanQuest™ Sensor)
that is active as long as power is applied to the unit. The infrared (IR) signal
extends approximately eight (8) inches beyond the scan window in long range
mode. In short range mode it extends approximately three (3) inches beyond
the scan window. To activate the unit, wave an object in front of the IR sensor
or pick up the scanner and direct the scan window down-wards.
When the unit is activated by the IR sensor, the red LED will remain on. This
is a visual indication that the laser is on and the scanner is beginning a
sequence of bar code recognition, decoding, and transmission. When an object
is in the scan field, the laser determines if a bar code is present. If a bar code is
not detected within approximately 2.5 seconds, the red LED will shut off
indicating that the laser is no longer on. To reactivate the scanning sequence,
the object must be removed and another object must be presented.
When a bar code is recognized, the scanner will decode the bar code and then
transmit the data to the host system. When this occurs, the green LED will
flash and the scanner will beep when the decoding is complete. At this time,
the laser will turn off if the object is removed from the field. However, if the
object stays in the field the laser remains on for up to 2.5 seconds trying to
detect another bar code. This feature allows very fast consecutive scans of
symbols in close proximity, such as a wall of boxes or cartons, or a bar coded
menu. The laser will stay on for approximately 4 seconds and then will turn off
if the same symbol stays in the field after a successful scan. This prevents
unintentional reads of the same bar code. To read the same symbol more than
once, simply remove the object from the scan field for approximately 1 second
and then the scanner can then scan the same symbol on the next pass.
The MS951 Hand-Held Laser Scanner with Built-in PC Keyboard Wedge
Interface is designed to be used for keyboard emulation only. However, many
RS-232 programmable functions that are available in other Metrologic
scanners are also available as keyboard wedge functions. The most important
selectable options specific to the keyboard wedge are the following:
Keyboard Type
!** AT (includes IBM PS2 models 50, 55, 60, 80)
®
!XT
!IBM PS2 (includes models 30, 70, 8556)

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Keyboard Country Type
!** USA !United Kingdom
!French !German
!Italian !Spanish
!Belgium !Swiss
!IBM KB4700 Financial Keyboard
** Default setting. Refer to the Programming Guide MLPN 2366 for
information on how to change the default settings.

3
Scanner and Accessories
The following is a list of the parts included in the MS951 shipping
carton.
!MS951 Hand-Held Laser Scanner - Refer to page 28 for
available communication protocols
!Stand (MLPN 45482)
!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 (MLPN2365)
!MS951 Hand-Held Laser Scanner including all
Scanner Configurations Programming Guide
(MLPN 2366)
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)
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)
!RS-232 Scanner Demonstration Program (Receive)
diskette (MLPN 2351)
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.

4
Quick Start
1.) Plug in the scanner. When the MS951 is ready to
scan, the red LED will turn on, followed by the
green LED, and then the scanner will emit one
beep.
2.) The scanner is shipped from the factory pro-
grammed with default settings. To configure
the MS951 scanner to meet the host system’s
specific needs, refer to the Programming
Guide (MLPN 2366) for instructions on how
to enter the program mode and to select the
appropriate bar codes.
Note: Keyboard Wedge scanners default to Keyboard Wedge
Communications and USA, AT keyboard when the Recall
Defaults is scanned. With all other versions, the Recalll Defaults
barcode configures the MS951 for an RS-232 interface. If RS-232
is not being used, scan at least one other bar code to enable OCIA,
Light Pen or 46xx.

5
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 (for special
circumstances only) to make sure the voltage matches the AC outlet.
Connect AC power to the transformer.
3. Listen for a single beep (red LED on) which indicates the scanner is
ready for use.
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. Listen for a single beep (red LED on) which indicates the scanner is
ready for use.

6
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, the red LED will turn
on, followed by the green LED, and then the scanner will beep
once.
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.

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MCA
Female
9-pin D
MCA
MS951- 9, 11, 14 and 15
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.

8
MS951- 47 and MS961- 47 Scanner Installation to the PC
(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 MS951 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 40 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.
5. Power up the PC.

9
MS951- 57 and MS961- 57 Scanner Installation to the PC
(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. This version uses an external power supply. 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 MS951 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 appropriate end of the adaptor cable
to the coil cable, leaving the necessary termination exposed for
connecting to the keyboard and the keyboard port on the PC. Refer to
Appendix C page 40 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. Connect AC power to the trans-
former.
5. Power up the PC.

10
Configuration of the MS951/MS961- 48 Scanner
The Keyboard Laser Scanner version of the MS951 is terminated with a 6-pin
male mini DIN. The version 48 plugs directly into the external keyboard port
of a register or notebook computer.
Application Test:
The MS951/MS961-48 is compatible with some but not all notebook
computers equipped with an external keyboard port. It has been proven to
work with an IBM 4614 Sure One POS terminal. Due to variations in host
systems, Metrologic cannot guarantee that the MS951/MS961-48 will work
with the system.
A reliable test for compatibility would be to connect an external keyboard to
the notebook and power up the unit. If the notebook accepts data from both the
external keyboard and the built in keyboard, the notebook is likely to work
with the MS951/MS961-48.

11
Version “11" 46XX Interface
Output Format: IBM RS-485 serial input/output for the 4680 and 4690
(46XX) point-of-sale terminals
The Version 11 46XX interface can be used in several different ways. Both the
46XX terminal and the scanner must be configured to match each other.
Warning: Power to the scanner and 46XX terminal should be turned off
before making physical connection.)
The 4680 and 4690 series terminals have different types of physical ports for
connecting bar code scanners. Scanner ports include Port 5B, Port 17, and
Port 9? (? = A, B, C, or E). A Port 9 type connector is present on all versions
of the 46XX families of terminals. That is one reason it is the normal point of
connection for Metrologic scanners. Another reason is that there is enough 12
volt power available to operate many Metrologic scanners. If the terminal
configuration requires the use of a different physical port, for connecting bar
code scanners, contact Metrologic to get particular adaptor cable information.
No matter what port is used for physical connection, all devices use a common
communications bus inside the 46XX terminal. Each device uses a different
address when it must communicate. The terminal must be configured to look
for a device at a logical address.
The IBM 1520 mode/address was selected as a default because it was the first
IBM 46XX family scanner to support UPC/EAN, Code 39 and Interleaved 2
of 5. The Version 11 scanner formats Codabar, Code 128, and Code 93 using
the Code 39 function code designation supported by the IBM device driver for
this scanner type. Other emulation modes currently available are the Port 17
IBM 3687-2 fixed scanner and the Port 9B IBM 4500 CCD hand-held bar
code reader. Use one of these other emulation modes depending on which
operating system (4680.OS, 4690.OS, POS/DOS or DOS/RIPPS) is being
used at the site.
Note: Metrologic’s 46XX hand-held scanner models are typically
installed with adaptor cables that draw power from the terminal.

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Configuring the Scanner with 46XX Interface
To configure an MS951 Version “11” scanner for general autodiscriminate
applications, scan the following bar codes found in the Programming Guide
MLPN 2366:
Enter/Exit Program Mode
Recall Defaults
Enable IBM 46XX Interface (If necessary, change the emulation.)
Enter/Exit Program Mode
Disconnect and reconnect the scanner to allow the terminal device driver to
initialize for the emulation mode selected properly.
Operating Characteristics
The MS951 supports the enable/disable commands that newer 46XX device
drivers use to support scanners. If the scanner does not appear to work beyond
the good power on diagnostics' beep, check that the application is at a prompt
that expects scanner input.
For some slow application software, there are special features in the MS951
that may change the scanner operating characteristics to prevent data loss
while not significantly slowing the scanner performance.
They include:
Beep After Transmit R50 - Beep before transmission (default)
R51 - Beep after transmission
R20 - No inter record delay
R21 - 25 m/sec inter record delay (default)
R22 - 50 m/sec inter record delay
R23 - 125 m/sec inter record delay
Experiment with these options to find the combination that works best for the
application.
Configuring the IBM 46XX
The 4683 and 4693 terminals are configured on the store controller. The 4684
and 4694 terminals are typically configured on the individual terminals.
Follow the appropriate guide for the type of equipment.

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IBM 4683 and 4693 Terminals Driven by a 46XX Store
Controller Running 4680.OS or 4690.OS
Access the terminal configuration menu on the store controller. If not already
selected, select an IBM 1520 laser hand scanner (4680.OS Port 5B), an IBM
4500 hand-held bar code reader (CCD, 4680.OS Port 9B), or an IBM 3687-2
fixed scanner (4680.OS Port 17) that matches the configuration of the scanner.
Regarding the 4690.OS, at the time of this printing, Metrologic does not know
exactly which terminal port configuration screen is used for selecting scanners.
It should be listed under the Port 9A, 9B, 9C, or 9E sections. The 4693
terminal has a Port 5B that was originally used for the IBM 1520 scanner.
While IBM has withdrawn this product, it was not clear how terminal
configuration and device driver support would be provided for the installed
base of users.
Save the configuration and activate it for the desired terminals, download the
configuration to the terminal(s) per standard procedures.
IBM 4684 and 4694 Systems
Initialize the RIPPS drivers for a hand scanner if hand scanner emulation was
selected. Initialize the RIPPS drivers for a "POS scanner" if the 3687-2
scanner has been selected.

Coil Cable
Green and Red LEDs
Laser Output Window
ScanQuest™ Infrared
Object Sensor
14
Figure 1
Parts of the MS951
Green and Red LEDs When the red LED is on, this indicates that
the laser is on. When the green LED flashes
on, the scanner has read a bar code success-
fully. When the green light turns off, com-
unication to the host is complete.
Laser Output Window Laser light emits from this aperture.
ScanQuest™ Infrared When a specified time has elapsed without
Object Sensor any scanning, the unit will enter a “standby”
mode. To reactivate the unit, wave an object
in front of the IR (infrared) sensor or pick up
the scanner and direct the scan window
downwards. When the red LED comes on, the
scanner is ready to scan.
Coil Cable This cable is terminated with a 10-pin
modular connector, which attaches to the
MCA951. The Keyboard Wedge unit has a
"y" coil cable terminated with a 5-pin female
on one end, and a 6-pin male on the other.

1
2
4
3
5
6
15
Figure 2
Components of the MS900 Series Stand
The following are the components used to build the MS900 series stand
(MLPN: 45482):
1Cradle 4Wood Screws
2Stand Cover 5Internal Lock Washer
3Stand Base 6Flexible Shaft
Installation of the MS900 Series Stand
1. Use the 2½ inch x 2½ inch stand base to mark the position for pilot holes.
2. Use the four wood screws to secure the base to the work surface.
3. Position the stand cover on top of the stand base. Screw the flexible
shaft to the stand base (Refer to Figure 3).
4. Place the internal lock washer on top of the flexible shaft and then
screw the cradle to the shaft (Refer to Figures 4 and 5).
Note: Fasten the stand to the work surface before adjusting the angle of
the flexible shaft. To adjust the angle, firmly hold the shaft and
push the shaft to a north, south, east, or west direction.
Caution: This device can generate an electromagnetic field. Position stand at
least 12 inches from computer monitor, diskettes, or other
magnetically sensitive devices.

16
Figure 3
Figure 4
Figure 5