Metrologic MS6720 Manual de usuario
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
iv
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
1
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.
2
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.
3
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).
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
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.
5
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.
6
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.
7
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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