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3M
Intercom System
C860
3M C860 User Manual
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2
5.
Connect
the
atten
uators
to
the
microphon
e
line.
Using
wire
nuts,
connect
the
attenuators
to
the
microphone
line
at
the
base
station
end
of
the
mic
cable.
See
Figure
2.
6.
Check
the
system
for
correct
operati
on.
Determine
the
type
of
intercom
system,
and
ad
-
just
the
speaker
and
microphone
according
to
the
related
installation
instructions.
Figure
1.
T
ypical
Installation
in
a
Speaker
Post
151
153
Table of Contents
Revision History
4
Table of Contents
4
Section 1. Operation and Diagrams
8
Battery Charger
8
Introduction
8
Speaker and Microphone Assemblies
8
Cross-Lane Module
8
Interconnect Module
8
Vehicle Alert System
8
System Components
8
Base Station
8
Headset
8
System Configurations
8
Dual-Lane Duplex Communication System
9
Dual-Lane Standard Communication System
9
Single-Lane Duplex Communication System
9
Single-Lane Standard Communication System
9
Operating Theory
9
Processing Vehicle Alert Signals
9
Talk/Listen Communication
9
Transmitting and Receiving
9
Cross-Lane Talk/Listen Mode
11
Monitor Amplifier and Speaker
11
Page Mode
11
Page Monitor Mode
11
Talk Lock Mode
11
Headset Components
11
Headband
12
Microphone Boom Assembly
12
Rechargeable Battery
12
Speaker Assembly
12
Base Station
13
DC Power
13
Talk/Page Input
13
Vehicle Detector Input
13
Menu MIC Input
14
Table of Contents
24
Figure 1. Typical Installation
26
Typical Single Lane Installation
26
Battery Charger
27
Figure 2. Battery Chargers (3-Slot and 6-Slot Versions)
27
Base Station
28
Figure 3. Base Station Mounting Holes
28
Speaker and Microphone Assemblies
28
Standard Systems
28
Duplex Systems
28
Face-To-Face Type Duplex Systems
28
Interconnect Module (Optional)
29
Connecting the Base Station Directly to Components
30
Figure 5. Direct Base Station-To-Component Connections
30
Connecting the Base Station to Components Using the Optional Interconnect Module
31
Figure 6. Base Station - Interconnect Module Connections
31
Figure 7. Connecting Components to the Interconnect Module
32
Connecting the Auxiliary Intercom (Optional)
33
Figure 8. D-15D (M478 DA) Connections
33
Figure 9. D-15B and D-15C (M478 BA and CA) Connections
33
Dual Lane System Installation
34
Figure 10. D-30 Connections
34
Cross Lane System Installation
35
Figure 11. Cross-Lane Wiring Diagram
36
Wiring the System
36
System Configurations and Function Jumper Settings
39
Standard Operation - Single Lane System (One Base Station)
39
Standard Operation - Dual Lane System (Two Base Stations)
39
Duplex Operation - Single Lane System (One Base Station)
40
Duplex Operation - Dual Lane System (Two Base Stations)
40
Channel Selection
41
Figure 12. Removing the Half-Cover from the Base Station
41
Figure 13. Base Station Circuit Board
42
Duplex Systems Only
43
Duplex and Standard Systems
43
Alert Tone Level
43
Monitor Speaker Volume Levels
44
Standard Systems Only
44
Listen Level (Menu Sign Microphone Sensitivity)
44
Menu Sign Talk Volume Level
45
Setting Audio Levels
42
Circuit Board Jumpers, Adjustment Controls, Indicators and Switches
46
Jumpers
46
Figure 14. Base Station Circuit Board
46
Adjustment Controls
47
Indicators
47
Switches (Etc.)
47
Connectors
47
Finishing up
48
Technical Assistance
48
Troubleshooting Guide
64
Troubleshooting Audio Feedback
48
Model C960
72
Intended Use
74
FCC Information
74
Model C960
74
System Description
76
Introduction
76
System Configurations
76
Cross-Lane Communication System
76
Dual-Lane Duplex Communication System
76
Dual-Lane Standard Communication System
76
Single-Lane Duplex Communication System
76
Single-Lane Standard Communication System
76
System Components
77
Base Station
77
Battery Charger
77
Headset
77
Controls and Indicator
78
Base Station
78
Headset
79
Battery Chargers
81
Headset Preparation
82
Introduction
82
Checking the Headset for Proper Fit
82
Adjusting Headband Width
82
Adjusting Headband Size
83
Positioning the Ear Pad and Microphone
83
Installing the Cap Clip
84
Operation
86
System Startup
86
Turning on the Base Station
86
Turning on the Headset
86
Operating Modes
86
Cross-Lane Communication Systems
86
Dual-Lane Standard or Duplex Communication Systems
86
Single-Lane Standard or Duplex Communication Systems
86
Standby Mode
86
Talk/Listen Mode
86
Talk Lock Mode ("Hands Free")
87
Page Mode
88
Page Monitor Mode
88
Special Considerations
89
Maintenance
90
Headset
90
Replacing the Battery
90
Replacing the Center Headband Pad
91
Replacing the Side Headband Pads
91
Replacing the Ear Pad
92
Battery Charger
92
Cleaning the Contacts
92
Location
92
Batteries
92
Battery Voltage Low Tone
92
Care, Handling and Storage
92
Charging Batteries
92
Disposing of Batteries
93
Important Information about C960 Rechargeable Batteries
93
Making Sure Batteries Are Ready for Use
93
Special Instructions for System Manager
95
Programming the Headset for Cross-Lane Operation
95
Reprogramming
95
Enabling/Disabling the Talk Lock Feature
96
Changing Channels if Interference Is Encountered
96
Changing the Day/Night Switch Setting
98
Adjusting the Monitor Speaker Volume
99
Troubleshooting
100
Introduction
100
System Troubleshooting
100
Battery and Battery Charger Troubleshooting
103
Service
104
Wiring Diagrams
108
Status Indication
118
Wiring Diagram
124
Figure 4. Interconnect Module
131
Specifications
149
Mounting Procedure
150
Other manuals for 3M C860
Installation Instructions
29 pages
Parts And Service
10 pages
4
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3M C860 Specifications
General
Brand
3M
Model
C860
Category
Intercom System
Language
English
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