Installation Guide

Date : October 18th 2019
DM3G Low-band
Ref : Installation Guide
Edition 1.2.0
Page
20/27
Do not cross loud-speaker cable with RF antenna cable.
7.4.2 Horn
Vehicle horn can be connected to radio mobile DM3G. It is not active in analog radio mode.
Horn must be controlled via an external relay.
Relay is specified as such : with diod, 12V, 30A. See diagram below.
For truck vehicles, with a 24V voltage battery, use a 24V relay.
Horn keyed connector on DM3G
power cable : no polarity
Horn contact
Horn contact
1.5 mm² section cable
1.5 mm² section cable
86 (+)
85 (-)
30 (+)
87 87a
0V
HORN CONNECT on CAR
15A fuse
+12V
UNDER THE HOOD
INTERIOR OF VEHICLE
Use plugs and
connector
provided by
TPL Systèmes
Relay with diod,
12V 30A