3M C860 User manual

Belt Pack Intercom System
Model C860
Operating Instructions

Model C860 Table of Contents
3M 2003 January i
Intended Use........................................................................................................................................... iii
FCC Information................................................................................................................................... iii
System Description ................................................................................................................................ 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
Headset and Belt Pack .............................................................................................................................. 2
Battery Charger......................................................................................................................................... 2
Controls and Indicators ........................................................................................................................ 3
Base Station..................................................................................................................................................... 3
Headset and Belt Pack..................................................................................................................................... 4
Battery Chargers.............................................................................................................................................. 6
Headset/Belt Pack Preparation ............................................................................................................ 7
Introduction..................................................................................................................................................... 7
Checking the Headset for Proper Fit............................................................................................................... 7
Positioning the Microphone...................................................................................................................... 7
Connecting the Headset to the Belt Pack.................................................................................................. 8
Installing the Belt Pack............................................................................................................................. 8
Wearing the Belt Pack .............................................................................................................................. 9
Operation................................................................................................................................................ 10
System Startup................................................................................................................................................. 10
Turning On the Base Station..................................................................................................................... 10
Turning On the Belt Pack......................................................................................................................... 10
Operating Modes............................................................................................................................................. 10
Standby Mode........................................................................................................................................... 10
Talk/Listen Mode...................................................................................................................................... 10
Talk Lock Mode (“Hands Free”).............................................................................................................. 11
Page Mode................................................................................................................................................ 12
Page Monitor Mode.................................................................................................................................. 12

Table of Contents Model C860
ii 3M 2003 January
Special Considerations.................................................................................................................................... 13
Maintenance........................................................................................................................................... 14
Belt Pack......................................................................................................................................................... 14
Replacing the Battery............................................................................................................................... 14
Replacing the Headset Pad....................................................................................................................... 14
Battery Charger............................................................................................................................................... 15
Location.................................................................................................................................................... 15
Cleaning the Contacts............................................................................................................................... 15
Batteries.......................................................................................................................................................... 15
Care, Handling and Storage...................................................................................................................... 15
Battery Voltage Low Tone....................................................................................................................... 15
Charging Batteries.................................................................................................................................... 15
Disposing of Batteries.............................................................................................................................. 16
Making Sure Batteries are Ready for Use................................................................................................ 16
Important Information about C860 Rechargeable Batteries..................................................................... 16
Special Instructions for System Manager ........................................................................................... 18
Programming the Belt Pack for Cross-Lane Operation.................................................................................. 18
Reprogramming........................................................................................................................................ 18
Changing Channels if Interference is Heard................................................................................................... 19
Changing the Day/Night Switch Setting......................................................................................................... 20
Adjusting the Monitor Speaker Volume......................................................................................................... 21
Troubleshooting..................................................................................................................................... 22
Introduction..................................................................................................................................................... 22
System Troubleshooting ................................................................................................................................. 22
Battery and Battery Charger Troubleshooting................................................................................................ 24
Service ............................................................................................................................................................ 25

Model C860 Important Information
3M 2003 January iii
Intended Use
The 3M Belt Pack Intercom System, Model C860, is designed to provide 2-way
radio-frequency audio communication in quick service drive-through restaurants
and convenience stores.
Misuse of the Model C860 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.

Important Information Model C860
iv 3M 2003 January
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Model C860 System Description
3M 2003 January 1
The 3M Model C860 Belt Pack Intercom System is a wireless intercom system
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 belt 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 belt 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 belt 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 belt 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 belt 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 headset 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.
Introduction
System
Configurations
Single-Lane Standard
Communication
System
Dual-Lane Standard
Communication
System
Dual-Lane Duplex
Communication
System
Single-Lane Duplex
Communication
System
Cross-Lane
Communication
System

System Description Model C860
23M 2003 January
The number of system components and the procedures necessary to operate
them vary depending on the system configuration. However, three components
are common to all system configurations.
The base station is the interface between the customer and the belt pack worn by
the operator. See Figure 1.
Figure 1. Base Station
The belt pack is used by the operator to communicate with customers and with
other store personnel who are wearing belt packs.
The headset is connected by a communications cable to the battery-powered belt
pack. See Figure 2.
Figure 2. Headset and Belt 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
Headset and Belt Pack
Battery Charger

Model C860 Controls and Indicators
3M 2003 January 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.
Note
If for some reason the C860 headset system does not operate and the system
includes an optional wired backup system, turn off the C860 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 channels is selected.
This indicator blinks when the Noise Reduction Module is switched on.
This button turns the optional Noise Reduction Module on or off.
This indicator lights when headset Page communications occur.
This indicator lights when headset–to–menu sign “Talk” communications occur.
This indicator lights when a vehicle is detected at the menu sign.
This access hole allows for adjusting the volume of the optional monitor
speaker.
Base Station
1 ON/OFF Switch
2 POWER Indicator
3 VOLUME
DAY/NIGHT
Switch
4 Channel Indicators
5
N
RM In
d
i
c
at
o
r
6 NRM On/Off
Button
7 Page Indicator
8 Talk Indicator
9 Vehicle Indicator
10 Monitor Volume
Access

Controls and Indicators Model C860
43M 2003 January
The controls on the belt pack are shown below.
Figure 5. 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 headset emits a short tone to indicate
the new volume level. There are 15 different volume levels from minimum to
maximum.
If the headset 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 c control is
pressed.
Note that even when set to its lowest level, headset volume is not turned
completely off.
Press the volume up control to increase the volume in the headset earpiece.
Press the ON switch to turn on the belt pack.
Press the OFF switch to turn off the belt 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.
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.
Headset and Belt Pack
1 Page Switch
2 Volume Down
Control
3 Volume Up
Control
4 ON Switch
5 OFF Switch
6 Talk Lock Switch
(Hands Free)
7 T2 (Talk Lane 2)
Switch