3M C960SL User manual

Compact Wireless Intercom
System
Model C960SL
Operating Instructions

Model C960SL Table of Contents
©3M 2003 i
Intended Use ...................................................................................................................................iii
FCC Information............................................................................................................................iii
Service..............................................................................................................................................iii
System Descriptions .......................................................................................................................1
Introduction ........................................................................................................................................... 1
System Configurations .......................................................................................................................... 1
Single-Lane Standard Communication System............................................................................. 1
Single-Lane Duplex Communication System ............................................................................... 1
Dual-Lane Standard Communication System ............................................................................... 1
Dual-Lane Duplex Communication System..................................................................................1
Cross-Lane Communication System............................................................................................. 1
System Components .............................................................................................................................. 2
Base Station................................................................................................................................... 2
Compact Earset and Transceiver Pack .......................................................................................... 2
Battery Charger ............................................................................................................................. 2
Controls and Indicators .................................................................................................................3
Base Station ................................................................................................................................................... 3
Compact Earset and Transceiver Pack .......................................................................................................... 4
Battery Chargers............................................................................................................................................ 6
System Setup...................................................................................................................................7
Introduction ........................................................................................................................................... 7
Positioning the Earphone....................................................................................................................... 7
Connecting the Compact Earset to the Transceiver Pack......................................................................7
System Operation ...........................................................................................................................8
Introduction ........................................................................................................................................... 8
Turning On the Base Station ......................................................................................................... 8
Turning On the Transceiver Pack.................................................................................................. 8
Operating Modes ................................................................................................................................... 8
Standby Mode ............................................................................................................................... 8
Talk/Listen Mode .......................................................................................................................... 8
Single-Lane Standard or Duplex Communication Systems ................................................... 8
Dual-Lane Standard or Duplex Communication Systems...................................................... 8
Cross-Lane Communication Systems..................................................................................... 9
Talk Lock Mode ("Hands Free")...................................................................................................9
Page Mode..................................................................................................................................... 10
Page Monitor Mode....................................................................................................................... 10
Special Considerations .................................................................................................................. 11

Table of Contents Model C960SL
3M 2003
ii
Maintenance....................................................................................................................................12
Transceiver Pack ...................................................................................................................................12
Replacing the Battery ....................................................................................................................12
Battery Charger .....................................................................................................................................13
Location.........................................................................................................................................13
Cleaning the Contacts....................................................................................................................13
Batteries.................................................................................................................................................13
Care, Handling and Storage ..........................................................................................................13
Battery Voltage Low Tone............................................................................................................13
Charging Batteries.........................................................................................................................13
Disposing of Batteries ...................................................................................................................14
Making Sure Batteries are Ready for Use .....................................................................................14
Important Information about C960SL Rechargeable Batteries .....................................................15
Special Instructions for System Manager ....................................................................................15
Programming the Transceiver Pack for Cross-Lane Operation.............................................................15
Reprogramming.............................................................................................................................15
Changing Channels if Interference is Heard..........................................................................................16
Changing the Day/Night Switch Setting ...............................................................................................17
Adjusting the Monitor Speaker Volume................................................................................................18
Troubleshooting..............................................................................................................................18
Introduction ...................................................................................................................................................18
System Troubleshooting ................................................................................................................................18
Battery and Battery Charger Troubleshooting...............................................................................................20

Model C960SL Use and Information
©3M 2003 iii
Intended Use
The 3M Headset Intercom System, Model C960SL, is designed to provide
2–way radio–frequency audio communication in quick service drive–
through restaurants and convenience stores.
Misuse of the Model C960SL could result in poor performance and/or
undesired operation.
FCC Information
This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Changes or modifications not expressly approved by the party responsible
for compliance could void the user’s authority to operate the equipment.
Service
Model C960SL system service needs can be fulfilled by your local 3M
Food Services Trade Department dealer. If special service assistance or
information is needed, please call 1-800-328-0033.

Use and Information Model C960SL
3M 2003
iv
(Blank Page)

Model C960SL System Descriptions
©3M 2003 1
The 3M Model C960SL Wireless Intercom System is a designed for high
reliability, compactness, and ease of service.
The system can be programmed to operate on any one of eight different
radio channels to provide high-quality audio performance and reduce the
possibility of interference between neighboring wireless systems.
The system can be configured in one of five ways depending on the number
of menu signs (lanes) at the facility and the type of communication desired.
The single-lane standard communication system provides standard
communication (talk or listen) for facilities that have one menu sign.
The system consists of one base station and one or more transceiver packs
and battery chargers.
The single-lane duplex communication system provides duplex
communication (simultaneous talk and listen) for facilities that have one
menu sign.
The system consists of one base station and one or more transceiver packs
and battery chargers.
The dual-lane standard communication system provides standard
communication (talk or listen) for facilities that have two menu signs.
The system consists of two independent systems - one dedicated to menu
sign 1 and the other dedicated to menu sign 2. The transceiver packs are
programmed to work with one system or the other and are labeled
accordingly (1 or 2).
The dual-lane duplex communication system provides duplex
communication (simultaneous talk and listen) for facilities that have two
menu signs.
The system consists of two independent systems - one dedicated to menu
sign 1 and the other dedicated to menu sign 2. The transceiver packs are
programmed to work with one system or the other and are labeled
accordingly (1 or 2).
The cross-lane communication system provides duplex communication
(simultaneous talk and listen) for facilities that have two menu signs.
The system consists of two duplex systems that are connected to a cross-
lane module. The transceiver packs are programmed for either lane 1 or
lane 2.
During off-peak hours, the cross-lane module can be turned ON to link the
two systems and enable one operator to simultaneously talk and listen to
customers at menu sign 1 or menu sign 2 or with other earset operators.
During peak hours, the cross-lane module can be turned OFF to separate the
systems and enable menu sign 1 operators to talk to customers at menu sign
1, and menu sign 2 operators to talk to customers at menu sign 2.
The number of system components and the procedures necessary to operate
them vary depending on the system configuration. However, three
Introduction
System
Configurations
Single-Lane Standard
Communication
System
Single-Lane Duplex
Communication
System
Dual-Lane Standard
Communication
System
Dual-Lane Duplex
Communication
System
Cross-Lane
Communication
System

System Descriptions Model C960SL
3M 2003
2
components are common to all system configurations.
The base station is the interface between the customer and the transceiver
pack worn by the operator. See Figure 1.
Figure 1. Base Station
The transceiver pack is used by the operator to communicate with customers
and with other store personnel who are wearing transceiver packs and
compact earsets.
The compact earset is connected by a communications cable to the battery-
powered transceiver pack. See Figure 2.
Figure 2. Compact Earset and Transceiver Pack
The battery charger charges batteries in approximately 1.5 to 2 hours. The
charger is available in 3-slot and 6-slot versions. See Figure 3.
Figure 3. 3-Slot and 6-Slot Battery Chargers
System
Components
Base Station
Compact Earset and
Transceiver Pack
Battery Charger

Model C960SL Controls and Indicators
3M 2003 3
The base station controls and indicators are shown below.
Figure 4. Base Station Controls and Indicators
The ON/OFF switch controls power to the base station.
This indicator lights when the ON/OFF switch is in the ON position.
9Note
If for some reason the C960SL Compact Wireless System does not
operate and the system includes an optional wired backup system,
turn off the C960SL Base Station to enable the backup system.
With the switch in the DAY position, the volume of the menu sign speaker
is increased for daytime operation. With the switch in the NIGHT position,
the volume of the menu sign speaker is decreased for nighttime operation.
(Sound travels further and more efficiently at night.)
These indicators light to show which of the 8 radio channels is selected.
This indicator lights when Page communications occur.
This indicator lights when "Talk" communications occur.
This indicator lights when a vehicle is detected.
This access hole allows for adjusting the volume of an optional monitor
speaker.
Base Station
1 ON/OFF Switch
2 POWER Indicator
3 VOLUME
DAY/NIGHT
Switch
4
C
hann
e
l In
d
i
c
at
o
r
s
5 Page Indicator
6 Talk Indicator
7 Vehicle Indicator
8 Monitor Volume
Access

Controls and Indicators Model C960SL
3M 2003
4
The controls on the transceiver pack are shown below.
Figure 5. Compact Earset and Transceiver Pack Controls
Press and hold the PAGE switch to talk to internal personnel without being
heard by the customer. Release the switch to listen.
Press the volume down control to decrease the volume.
When either volume control is pressed, the compact earset emits a short
tone to indicate the new volume level. There are 15 different volume levels
from minimum to maximum.
If the compact earset volume is at its maximum level, a low, continuous
tone sounds when the volume up control is pressed. A low, continuous
tone also occurs when the volume reaches minimum level and the volume
down control is pressed.
Note that even when set to its lowest level, compact earset volume is not
turned completely off.
Press the volume up control to increase the volume in the compact earset.
Press the ON switch to turn on the transceiver pack.
Press the OFF switch to turn off the transceiver pack.
For duplex systems where hands free operation is desired, press the talk
lock switch once to talk and listen to the customer. This enables hands-free
operation
Compact Earset and
Transceiver Pack
1 PAGE Switch
2 Volume Down
Control
3 Volume Up
Control
4
ON
Sw
i
tc
h
5
O
FF
Sw
i
tc
h
6 Talk Lock Switch
(Hand Free)

Model C960SL Controls and Indicators
©3M 2003 5
For dual-lane systems, press and hold the T2 (Talk Lane 2) switch to talk
to the customer at the menu sign in lane 2. Release the switch to listen.
For single-lane systems, both switches operate identically.
Press and hold the T1 (Talk Lane 1) switch to talk to the customer in lane
1. Release the switch to listen.
Push the battery release toward the center of the unit to release the battery.
This rechargeable battery provides power to the transceiver pack.
This jack accepts the programming cable from the base station to allow the
transceiver pack to be programmed to the same radio channel as the base
station.
The microphone sends the operator's voice to the customer and/or other
compact earset operators.
The earphone is a speaker that broadcasts the voice from the customer or
other compact earset operators. The replaceable earphone cover protects the
earphone and cushions the operator's ear to provide comfort.
8 T1 (Talk Lane 1)
Switch
9 Battery Release
10 Batter
y
11 Programming Jack
12 Micro
p
hone
13 Ear
p
hone
7 T2 (Talk Lane 2)
Switch

Controls and Indicators Model C960SL
3M 2003
6
The 3-slot and 6-slot battery charger controls are shown below.
Figure 6. Battery Charger Controls
The charging slots hold batteries during the recharging cycle.
This dual-function slot holds a battery during conditioning and recharging
cycles. This slot functions as a conditioning slot when the conditioning
button is pressed.
The charging status indicators light RED, GREEN, or ORANGE to indicate
charging status:
RED indicates the battery is being charged.
GREEN to indicate the battery is fully charged.
ORANGE to indicate the battery is defective.
Press the conditioning button to condition a battery that is inserted in the
conditioning/charging slot. The button must be pressed within 2 seconds of
inserting the battery.
The conditioning status indicator lights YELLOW to indicate the battery in
the conditioning slot is being conditioned.
This jack accepts the plug from the power supply cord.
The power supply provides power to the battery charger.
Battery Chargers
1 Charging Slots
2 Conditioning and/or
Charging Slot
3 Charging Status
Indicators
4 Conditioning
Button
5 Conditioning
Status Indicator
6 Power Supply Jack
7 Power Supply

Model C960SL System Setup
3M 2003 7
To prepare the Compact Wireless System for use, you will need to check the
components for proper assembly and operation positioning.
Position the microphone tip so it points forward and the earphone fits
comfortably in your ear. See Figure 7.
Figure 7. Positioning the Earphone
To connect the compact earset to the transceiver pack:
Insert the communications plug at the end of the compact earset cable into the
modular jack in the top of the transceiver pack.
Introduction
Positioning the
Earphone
Connecting the
Compact Earset to the
Transceiver Pack

System Operation Model C960SL
8 3M 2003
System operation includes turning on the base station and each transceiver
pack that will be used.
To turn on the base station:
1. Slide the power ON/OFF switch to/ the ON position. Check to see that
the POWER indicator lights.
2. Slide the VOLUME switch to the desired position (DAY or NIGHT).
To turn on the transceiver pack, press the ON switch located on the transceiver
pack. A single tone will sound in the compact earset to indicate the unit has
been turned on.
The system has several operating modes. The number of available operating
modes depends on the system configuration (single-lane vs dual-lane,
standard communication vs duplex communication, etc.).
In the standby mode, the transceiver pack is on and waiting to receive
communication from the customer or other compact earset operators. This
mode is available with all system configurations.
Use the talk/listen mode to talk to the customer. This mode is available with
all system configurations.
Single-Lane Standard or Duplex Communication Systems
1. A single beep alert tone sounds in the headset at 2-second intervals when
the system detects a customer (vehicle) at the menu sign.
2. When you hear the alert tone, press and hold T1 or T2 to talk to the
customer at the menu sign. Release T1 or T2 to listen.
Dual-Lane Standard or Duplex Communication Systems
In dual-lane systems, some transceiver packs are programmed to communicate
with Lane 1 and others are programmed to communicate with Lane 2.
1. An alert tone sounds in the headset when the system detects a customer
(vehicle) at the menu sign:
• The alert tone for Lane 1 compact earsets is a single beep that repeats
at 2-second intervals.
• The alert tone for Lane 2 compact earsets is a double beep that repeats
at 2-second intervals.
2. When you hear the single beep alert tone, press and hold T1 and talk to the
customer. Release T1 to listen.
When you hear the double beep alert tone, press and hold T2 to talk to the
customer. Release T2 to listen.
S
y
stem O
p
eration
Turning On the Base
Station
Turning On the
Transceiver Pack
Operating Modes
Standby Mode
Talk/Listen Mode

Model C960SL
System Operation
3M 2003 9
Cross-Lane Communication Systems
Communication During Peak Hours
During peak hours, the cross-lane module is turned off and the system
functions like a dual-lane duplex system. Some transceiver packs are
programmed to communicate with Lane 1 and others are programmed to
communicate with Lane 2.
Communication During Off-Peak Hours
During off-peak hours, the cross-lane module is turned on to enable a single
operator to communicate with customers in either lane (1or 2).
1. An alert tone sounds in the compact earset when the system detects a
customer (vehicle) at the menu sign:
• The alert tone for Lane 1 transceiver packs is a single beep that repeats
at 2-second intervals.
• The alert tone for Lane 2 transceiver packs is a double beep that repeats
at 2-second intervals.
2. When you hear the single beep alert tone, press and hold T1 and talk to the
customer at menu sign 1. Release T1 to listen.
When you hear the double beep alert tone, press and hold T2 to talk to the
customer at the menu sign 2. Release T2 to listen.
Use this mode to operate "hands free". The talk lock mode is only available
with duplex system configurations.
In this mode, the transceiver pack automatically switches from standby to
talk/listen when a customer is detected. The transceiver pack automatically
switches back to standby when the customer leaves.
9Note
“Hands Free" operation (talk lock mode) prevents all other compact earset
operators from communicating.
To use the talk lock mode, press the talk lock switch on the transceiver pack.
To return to normal operation, press T1 or P.
Talk Lock Mode
(“Hands Free”)

System Operation Model C960SL
10 3M 2003
Use this mode to talk to other operators who are wearing compact earsets
without being heard by the customer at the menu sign. This mode is available
with all system configurations.
To page another operator, press and hold the page switch while speaking.
Release the page switch to listen.
9Note
If you are not a menu sign operator, do not use the page mode while the
menu sign operator is communicating. Doing so may interrupt or prevent
communication between the menu sign operator and the customer.
Use this mode to listen for pages from other operators (without hearing the
communication to and from the customer). This feature is convenient for
managers who only want to hear page communication. This mode is available
with all system configurations.
To use the page monitor mode:
1. Turn the transceiver pack OFF. See Figure 8.
Figure 8. OFF Switch
2. While pressing and holding the page switch, turn the transceiver pack ON.
This locks the transceiver pack in the page monitor mode. See Figure 9
on the next page.
Page Mode
Page Monitor Mode

Model C960SL
System Operation
3M 2003 11
Figure 9. PAGE Switch and ON Switch
To respond to a page, press PAGE.
To return to normal operation:
1. Turn the transceiver pack OFF.
2. Turn the transceiver pack ON.
When using the talk/listen mode or the page mode, keep the following things
in mind:
• Communication between the operator and the customer may be heard by
several people.
• Only one operator can talk at a time.
• In the talk/listen mode, communication from the transceiver pack is
heard by customers and other operators who are wearing compact earsets.
Special
Considerations

Maintenance Model C960SL
12 3M 2003
When the battery voltage is too low, the compact earset sounds a short, low-
volume tone at seven-second intervals to alert the operator to install a fully
charged battery. The "battery voltage low tone" continues for two minutes after
which the transceiver pack turns off automatically to prevent damage to the
batteries.
9Note
When installing a battery, make sure it is fully charged. It is important to
remember that an unused C960SL battery loses five percent of its charge
per week. If a battery has not been used for several weeks, make sure to
charge prior to use.
To replace the battery:
1. Push the battery release to release the battery. See Figure 10.
2. Remove the discharged battery from the transceiver pack.
3. Insert a fully charged battery in the unit. Make sure the battery is fully
inserted (battery release clicks). See Figure 10.
Figure 10. Replacing the Batteries
Transceiver Pack
Replacing the Battery

Model C960SL Maintenance
3M 2003 13
The battery charger should be placed on a flat surface such as a desktop or table
in a clean, dry environment, or an optional wall mount unit may be used.
If the indicators fail to light during charger operation, clean the contacts using an
alcohol-moistened cotton swab.
Avoid dropping batteries. Do not carry batteries in your pockets or leave them in
hot, damp or dirty places.
!Caution
Be careful not to short the battery contacts together.
When the battery voltage becomes too low, a short, low-volume tone sounds in
the headset at seven-second intervals to alert the operator to replace with a fully
charged battery.
The "battery voltage low tone" continues for two minutes after which the headset
turns off automatically to prevent damage to the batteries.
To charge a battery, insert the battery in one of the charging slots as shown in
Figure 11.
• The indicator lights RED to indicate the battery is charging.
• The indicator lights GREEN to indicate the battery is fully charged.
• The indicator lights ORANGE to indicate the battery is defective.
9Note
Discharged batteries require 1-1/2 to 2 hours to charge.
Figure 11.
Battery Charger
Location
Batteries
Care, Handling and
Stora
g
e
Battery Voltage Low
Tone
Charging Batteries
Cleaning the Contacts

Maintenance Model C960SL
14 3M 2003
To condition a battery:
1. Insert the battery in the charging/conditioning slot as shown in Figure 12.
2. Press the conditioning button within 2 seconds after inserting the battery.
The indicator lights YELLOW to indicate the battery is being conditioned.
3. When the conditioning cycle ends, the Conditioning Status Indicator will
glow green.
9Note
Conditioning leaves the battery in a charged state.
Figure 12.
To help protect the environment, C960SL rechargeable batteries which have
reached the end of their useful life should be disposed of in accordance with
local requirements.
Follow these tips to make sure batteries are always ready for use:
• Have at least one extra battery for each belt pack. This helps ensure that a
fully charged battery is always available.
• Recharge a low battery as soon as it is removed from the transceiver pack.
• Keep the battery contacts clean: both those on the battery and those in the
belt pack. To clean the contacts, use an alcohol-moistened cotton swab.
• Remember that a battery recharge takes approximately 1-1/2 to 2 hours.
• Avoid removing and reinserting batteries while they are charging
(charging status indicator is RED).
• Remember that batteries discharge fastest during Talk and Page operation.
Avoid unnecessary communications.
Disposing of Batteries
Making Sure Batteries
are Ready for Use