RDM 481 BB D-20 Installation Instructions Manual

In stal I atio n Instructions
Model 481 BB D-20 6-Channel Intercom System
81-9236-2877-6
Table of Contents
A. Contents ................................................................... 2
B. Introduction ........ ....................................................... .. 2
C. Mounting Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
D. Mounting and Connecting Speakers, Call Switches and Handsets ...................... 3
1. Speakers and Call Switches
2. Outside Handsets
3. SODAR Cable ( if used)
4. Vehicle Detection Components (Drive-thru applications)
E. Changing D-20 Jumper Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
F. Installing D-20 and Optional Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1. Routing Cables
2. Attaching Mounting Guides and "A" Bracket
3. Plug-In Cable and Terminal Strip Connections
4. Optional Footswitch
5. Optional Monitor Speaker
6. Optional Music and Message Player Connections
G. System Checkout and Volume Balancing .......................................... 6
1. Connect Transformer to D-20
2. Plug-in Transformer
3. Volume Ad j ustments and Function Checkout
4. Final D-20 Mounting
H. Service Information . ........... ............................................... 8
List of Illustrations
Figure 1. Intercom Mounting Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 2. D-20 Connections - Separate Speaker/Call Switch. . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 3. D-20 Connections - Combined Speaker/Call Switch ..... ............... ...... 10
Figure 4. D-20 Connections - with Outside Handsets ..................... ............ 11
Figure 5. D-20 Connections - Multiple-Lane Dri\€-thru . ............................... 1 2
To the Installer:
Be sure to review the page 3 and 4 notes regarding wiring and cable
requirement before you proceed.
78-8028-9281-6
ROM Industrial Electronics, Inc.
850 Harmony Grove Rd. Nebo, NC 28761
Phone: 1-800-282-5183
Rev.J