Symbol LS 7708 User manual

Quick Reference Guide
LS 7708

LS 7708 Quick Reference Guide
©2004-2005 SYMBOL TECHNOLOGIES, INC. All rights reserved.
Symbol reserves the right to make changes to any product to improve reliability, function,
or design.
Symbol does not assume any product liability arising out of, or in connection with, the
application or use of any product, circuit, or application described herein.
No license is granted, either expressly or by implication, estoppel, or otherwise under any
patent right or patent, covering or relating to any combination, system, apparatus,
machine, material, method, or process in which Symbol products might be used. An
implied license exists only for equipment, circuits, and subsystems contained in Symbol
products.
Symbol and the Symbol logo are registered trademarks of Symbol Technologies, Inc. Other
product names mentioned in this manual may be trademarks or registered trademarks of
their respective companies and are hereby acknowledged.
Symbol Technologies, Inc.
One Symbol Plaza
Holtsville, N.Y. 11742-1300
http://www.symbol.com
Patents
This product is covered by one or more of the patents listed on the website:
www.symbol.com/patents.

3
Introduction
This Quick Reference Guide is designed to assist during routine LS 7708
operation. Detailed information about unpacking, installation, performance
specifications, and troubleshooting can be found in the LS 7708 Product
Reference Guide.
Product Description
The LS 7708 high performance omni-directional laser scanner reads bar
codes quickly and accurately with a minimum of effort. The scanner includes
an Electriconic Article Surveillance (EAS) antenna, which allows simultaneous
bar code reading and security tag deactivation.
The LS 7708 can rest on top of a counter or be attached to a mounting surface.
Operating the LS 7708 Scanner
Power
The LS 7708 does not have an on/off switch. It’s ready to scan when connected
to a power supply.
Speaker
Volume Control &
Wakeup Button
LED

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Indicator Lights
The scanner employs an LED with a combination of red and green lights to
indicate operation and decode status. The Standard LED Definitions Table
on page 13 lists the different light combinations and their meanings.
If the scanner is not operating normally, contact the technical person in
charge of scanning, or call the Symbol Support Center at the telephone
number on the back cover.
Controls
The Volume Control & Wakeup button adjusts the volume of the beeper and
wakes the scanner from rest or sleep mode.
When the scanner is operating, depress this button to adjust the volume. Hold
down the button until the desired volume is obtained (approximately five
seconds). There are three volume levels. The scanner beeps twice at each
volume level before cycling to the next.
If the scanner is in a rest or sleep mode, briefly depressing the Volume Control
& Wakeup button also awakens the scanner.
Connections
The scanner’s ports are at the bottom of the scanner. Turning the scanner
upside down allows access to the scanner’s ports.
Secondary Scanner
Power Port
EAS Interlock PortRS-232 Aux Port
Host Port
(Synapse)Port

5
Routing the Cables
The scanner case has several channels to route the outgoing cables so that
they are organized and don’t hinder the scanner’s placement. After placing the
cable connectors in the appropriate scanner ports, route the cables through the
nearest channel.
For a cable with a Y-connector (containing both power and interface
connectors):
1. Connect the power and interface cables to the appropriate ports.
2. Route the cables according to the following diagram.
Mounting the Scanner to a Surface
Caution: The LS 7708 requires use of the mounting bracket for
proper operation and saftley. Failure to use the bracket
can result in scanner instability.
Connections to power and hand-
held scanner ports, side exit:
curl power cable and route it back
towards interface cable.
Connections to power and host
ports, side exit: keep power cable
straight and route it ahead with
interface cable.

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The LS 7708 is designed to sit on top of a counter or be mounted to a wall. The
slot on the back of the scanner accepts a mounting bracket to secure it to the
mounting surface. This bracket accommodates either configuration.
Attaching the Mounting Bracket
Freestanding Configuration
Use this method if the scanner will not be secured to a mounting surface.
1. Invert the scanner so that its bottom is facing up and the connections
are visible.
2. Connect all interface and power cables to the scanner. Refer to the LS
7708 Product Reference Guide for detailed information.
3. Orient the mounting bracket so that the plastic tab is facing downward
and toward the slot on the back of the scanner. The square cushion on
the mounting bracket should be positioned above the power cable.
Plastic Tab
Rubber Feet

7
4. Tilt the plastic tab into the slot on the scanner, and rotate the opposite
edge downward. As the bracket rotates, push it toward the slot so that
the feet of the bracket lie flat against the scanner’s bottom (see arrows).
5. When the bracket is flat against the scanner bottom, release pressure
so that the feet slide forward into the front of the scanner.
Mounted Configuration
Use this method if the scanner will be secured to a mounting surface.
1. Determine where the LS 7708 is going to be mounted.
2. Use a pencil to mark the four mounting holes. (A mounting template is
provided in the LS 7708 Product Reference Guide.)

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8
3. Remove all rubber feet (from the bracket or from the scanner).
4. Place the mounting bracket in position over the drilled holes with its flat
surface facing the mounting surface.
5. Insert four screws through the holes and fasten to the mounting surface.
6. Align the slot at the back of the scanner with the plastic tab on the
mounting bracket.
7. Angle the scanner slightly to allow the bracket plastic tab to slide into
the slot.
8. Push the scanner towards the plastic tab and rotate it so that it is
perpendicular to the mounting surface.
9. Release the pressure on the scanner. The bracket locks into place.

9
Detaching the Scanner from the Mounting Bracket
To detach the scanner:
1. Grasp the scanner firmly on both sides.
2. Squeeze the back of the scanner slightly while pushing the scanner in
the direction of the slot on the back.
3. Rotate the front of the scanner away from the mounting bracket until the
bracket pops out of the slot.
Scanning Bar Codes
Install and program the scanner. (Refer to the LS 7708 Product Reference Guide
for programming instructions.) For assistance, contact the local supplier or
Symbol Support Center (see back cover for Symbol Support Center phone
numbers).
For the best scanning performance, the counter top or surface area covered by
the active scan area should be free of any designs (e.g. stripes or patterns).
Ideally, that area should be a light, solid color. A rastering omni-directional
scan pattern provides rapid, orientation-free scanning.
To scan a bar code:
1. Ensure all cable connections are secure.
2. Orient the item with the bar code facing the scanner window.
3. Move the item through the active scan area in the direction of the
arrows, or place the item in front of the scanner.
4. Upon successful decode, the scanner beeps and the green LED flashes
momentarily.

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Active Scan Area
The active scan area is the area in front of the scanner window in which a bar
code can be decoded. The dotted area represents the active scan area.
Sleep Mode
The scanner automatically enters Sleep mode when it has been inactive for a
specified length of time. The scanner has two levels of sleep: laser and motor.
In laser sleep mode, after ten seconds of inactivity the laser pulses at a 50%
rate, and then drops to 3% after a specified time. In motor sleep mode, the
scanner is programmed to turn off the motor and the laser.
The scanner is awakened from either sleep mode by pressing the Volume
Control & Wakeup button. In laser sleep mode, the scanner also is awakened
by presenting a bar code at the scanner window.

11
Selecting Beeper Volume
The scanner emits a short beep when it successfully reads a bar code. The
volume of the beep is changed by scanning one of the beeper volume bar codes
in the LS 7708 Product Reference Guide, or by using the Volume Control &
Wakeup button on the front of the scanner as follows:
1. Press and hold the button for approximately five seconds. The scanner
cycles through three settings (low, medium, high), emitting a two-beep
tone at each setting.
2. To select a particular setting, release thebutton after the desired 2-beep
tone is heard.
Beeper Definitions
The scanner communicates with the user by emitting different beeper
sequences and patterns. See the Standard Beeper Definitions table for beeper
sequences that occur during both normal scanning and while programming the
scanner.
Standard Beeper Definitions
Beeper Sequence Indication
Standard Use
3 short high beeps Power up.
Short high beep A bar code symbol was decoded (if decode beeper is
enabled).
4 long low beeps A transmission error was detected in a scanned
symbol. The data is ignored. This occurs if the scanner
is not properly configured. Check option setting.
5 low beeps Conversion or format error.
Hi-hi-hi-lo beep RS-232 receive error on RS-232 host or RS-232
auxiliary port.
Code 39 Buffering
Hi-lo beep New Code 39 data was entered into the buffer.

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3 long high beeps Code 39 buffer is full.
Lo-hi-lo beep The Code 39 buffer was erased or there was an
attempt to clear or transmit an empty buffer.
Lo-hi beep A successful transmission of buffered data.
Host Specific
USB only
4 short high beeps Scanner has not completed initialization. Wait several
seconds and scan again.
Scanner gives a power-
up beep after scanning a
USB Device Type.
Communication with the bus must be established
before the scanner can operate at the highest power
level.
This power-up beep
occurs more than once. The USB bus may put the scanner in a state where power to the scanner is cycled on and off more than
once. This is normal and usually happens when the PC
cold boots.
RS-232 Host only
1 short high beep A <BEL> character is received and Beep on <BEL> is
enabled.
RS-232 Auxiliary Port only
1 short high beep A complete block of data was received and sent to the
host, either due to a carriage return or because the
two-second serial response timeout has elapsed.
4 long low beeps A data overrun condition has occurred. Abstain from
scanning data from other ports when large amounts of
data are sent to the RS-232 Auxiliary port.
Standard Beeper Definitions (Continued)
Beeper Sequence Indication

13
LED Definitions
In addition to beeper sequences, the scanner communicates with the user via
an LED display. The Standard LED Definitions table defines LED indications
that display during scanning.
Maintenance
Cleaning the exit window is the only maintenance required. A dirty or
scratched window may affect scanning activity.
• Remove any dirt particles with a damp cloth.
• Wipe the window with a tissue moistened with ammonia or water.
Standard LED Definitions
LED Indication
Off No power is applied to the scanner.
Green The scanner is on and “ready to scan.”
Momentary flash A bar code was successfully decoded.
Slow continuous red flashing,
green on The scanner is in programming mode.
Fast continuous red flashing,
green on There is an internal problem; the laser is shut off for regulatory reasons.
Green on (and laser blinking) Scanner is in Low Power Blink mode.
Red and green on Scanner is in Low Power Motor and Laser
Shutdown mode.

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Troubleshooting
Problem Possible Causes Possible Solutions
The omni-line scan
pattern does not
display when you
follow the directions
for installing the host
cable.
No power to the scanner. Ensure the host has power,
and is on. If the scanner uses
a separate power supply,
ensure it’s connected to a
working AC outlet.
Power-up sequence is
incorrect. Refer to the LS
7708 Product Reference
Guide for more information.
Interface cable is not
properly connected. Check for loose cable connections.
Scan line(s) display,
but bar code cannot be
read.
Scanner is not programmed
to read the bar code type. Ensure scanner is programmed to read the bar
code type you are scanning.
Bar code is damaged. Try scanning other bar codes
of the same bar code type.
Bar code is too far from
scanner. Move the bar code closer to the scanner.
The host has disabled
scanning or overridden
parameter settings.
See the technical person in
charge of scanning.
Bar code is decoded,
but not transmitted to
the host.
Scanner is not programmed
for the correct host type. Scan the appropriate host type bar code.

15
Note: If the symbol still does not scan, contact distributor or call the
local Symbol Support Center. See back cover for telephone
numbers.
Scanned data is
incorrectly displayed
on the host.
Scanner is not programmed
to work with the host. Check
scanner host type
parameters or editing
options.
Ensure proper host is
selected.
For RS-232, ensure the
scanner’s communication
parameters match the host’s
settings.
For keyboard wedge, ensure
scanner is programmed with
the correct country code and
that the CAPS LOCK key is
off.
Ensure editing options (e.g.,
UPCE-to-UPCA Conversion)
are properly programmed.
Although the green
and red LEDs are on,
the scanner does not
produce the omni-
directional scan
pattern.
The scanner has gone into
the Low Power “Motor
Sleep” Mode.
Press the Volume Control &
Wakeup button to awaken
the unit.
USB or Synapse host
not functioning
properly.
Scanner does not recognize
host. Remove and reinsert external power supply to
force cable to autodetect
correct host.
Problem Possible Causes Possible Solutions

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17
Introduction
Ce guide utilisateur est conçu pour faciliter l'utilisation quotidienne du LS
7708. De plus amples informations sur le déballage, l'installation, les
performances et le dépannage sont disponibles dans le Guide de
référence produit du LS 7708.
Description du produit
Le lecteur laser LS 7708 omnidirectionnel haute performance garantit une
lecture des codes à barres rapide, précise et conviviale. Il dispose d'une
antenne EAS (surveillance électronique d'articles) qui lui permet de lire les
codes à barres et de désactiver les étiquettes de sécurité d'un seul passage.
Le LS 7708 peut être posé sur un comptoir ou fixé sur une surface.
Fonctionnement du lecteur LS 7708
Alimentation
Le LS 7708 ne dispose pas d'un bouton marche/arrêt. Il suffit de le connecter
à une source d'alimentation pour le rendre opérationnel.
Haut-parleur
Bouton de réglage
du volume
et d'activation
Voyant lumineux

Guide utilisateur du LS 7708
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Voyants lumineux
Des voyants lumineux de couleur rouge et vert informent l'utilisateur de l'état
du fonctionnement et de la lecture. Le tableau des voyants lumineux de la
page 27 répertorie les différentes combinaisons visuelles et leur
signification.
Si le lecteur ne fonctionne pas correctement, contactezle technicienchargé
de la lecture ou appelez le service d'assistance de Symbol au numéro de
téléphone qui se trouve au dos.
Commandes
Le bouton de contrôle du volume et d'activation permet de régler le volume des
bips sonores et d'activer le lecteur lorsqu'il se trouve en mode veille ou repos.
Appuyez sur ce bouton pour régler le volume lorsque le lecteur est en marche.
Maintenez le bouton enfoncé jusqu'à obtention du volume souhaité (environ
cinq secondes). Il y a trois niveaux de volume. Le lecteur émet deux bips
sonores à chaque niveau de volume avant de passer au niveau suivant.
Si le lecteur est en mode veille ou repos, une simple pression sur ce bouton
permet de l'activer.
Connexions
Les ports du lecteur se trouvent au bas de l'appareil. Retournez-le pour y
accéder.
Port (Synapse)
Port d'alimentation
Port de verrouillage EAS
Port auxiliaire RS-232
Port hôte
secondaire du lecte
u

19
Routage des câbles
Le boîtier du lecteur est doté de plusieurs canaux qui permettent d'y ranger les
câbles de façon à ce qu'ils ne gênent pas son installation. Après avoir branché
les connecteurs de câble aux ports correspondants du lecteur, rangez les
câbles dans les canaux les plus proches.
Pour les câbles dotés d'un connecteur Y (qui contient les connecteurs
d'interface et d'alimentation) :
1. Connectez les câbles d'alimentation et d'interface aux ports appropriés.
2. Rangez les câbles comme illustré dans le diagramme ci-dessous.
Fixation du lecteur sur une surface
Attention : Le LS 7708 doit être fixé à l'aide du support de fixation
afin de garantir des conditions d'utilisation appropriées
et sécurisées. Le non-respect de ces instructions peut
entraîner une instabilité du scanner.
Connexionsauxportsd'alimentatione
t
de lecteur portable, sortie latérale :
pliez le câble d'alimentation et dirigez
-
le vers le câble d'interface.
Connexions aux ports hôte et
d'alimentation, sortie latérale :
gardez le câble d'alimentation
droit et dirigez-le vers le câble
d'interface.

Guide utilisateur du LS 7708
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Le LS 7708 est conçu pour être posé sur un comptoir ou pour être fixé sur un
mur. L'encoche située au dos du lecteur permet d'y monter un support
permettant de le fixer sur une surface. Ce support s'adapte aux deux
configurations de montage.
Fixation du support
Configuration sur pied
Utilisez cette méthode lorsque le lecteur n'est pas fixé sur une surface.
1. Retournez le lecteur de façon à apercevoir les connexions.
2. Connectez tous les câbles d'interface et d'alimentation au lecteur.
Reportez-vous au Guide de référence produit du LS 7708 pour de plus
amples informations.
3. Inclinez le support de fixation de façon à ce que l'attache plastique soit
orientée vers le bas et dans la direction de l'encoche située au dos du
lecteur. Les coussins carrés du support doivent se trouver au-dessus du
câble d'alimentation.
Attache plastique
Pieds en
caoutchouc