3M 478DA (D-15) Installation Manual

Installation Instructions 

3M

 Model 478DA (D-15) Intercom System  

78-9236-3421-2 

Table of Contents

A. Package Contents

1

B. Introduction

1

C. Mounting Methods

2

D. Connection to Optional System Components

2

1 Speaker/Detection Cable

2

2. Outside Speaker/Mic

2

3. Split Speaker and Mic

3

4. Flex Microphone

3

5. Monitor Speaker

3

6, Footswitch

3

7 Additional Presence Alert

3

8 Multiple Master System

3

9. Music/Message Playback System

3

10. Handset

3

11. Vehicle Detection

3

E. System Checkout and Balancing

4

F Service Information

4

G. Internal Switch Diagram

4

Intercom Mounting Methods

5

Connection Diagrams

6-9

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