Installation Manual

Table Of Contents
6881098C38-O September 22, 2004
Options and Accessories Installation: Dash-Mount Accessory Installations for W4/5/7/9 Models 3-5
3.3.1 MDC Emergency Pushbutton or Footswitch Installation
Mount the footswitch using the hardware that comes with the kit. Open the accessory cable
connector housing; remove the jumper wire. Connect the emergency switch wires to pins 14 and 15
(see
Figure 3-2). Close the connector housing; route the finished cable from the switch location to
the control head location.
Figure 3-2. Emergency Switch Wiring Diagram for W4/5/7/9
3.3.2 Horn and Lights (External Alarms) Relays
For installations that use the horn/lights option, select a suitable location for mounting (normally
under the dash) and, referring to
Figure 3-3, perform the following procedure:
NOTE: The handheld control head can have a horn or light option, but not both. Control wires for
either option should be connected to pins 18 and 24 of the accessory connector.
1. Horn Relay—Connect the relay contacts across the horn ring switch, typically found in the
steering column. Open the accessory cable connector and connect the two control wires
(male pins) into locations 18 and 24 of the connector.
2. Lights Relay—Connect the relay across the headlamp ON/OFF switch, typically found in the
steering column. Open the accessory cable connector and connect the two control wires
(male pins) into locations 19 and 24 of the accessory connector.
Figure 3-3. Horn/Light Wiring Diagram for W4/5/7/9
ACCESSORIES
CONNECTOR
PIN 14
PIN 15
NOTE 1
SPST NORMALLY CLOSED
EMERGENCY SWITCH
NOTE 1: REMOVE BLACK JUMPER WIRE INSIDE
ACCESSORY CONNECTOR HOUSING.
INSERT WIRES FROM EMERGENCY SWITCH
GND
EMER
MAEPF-27617-O
1
7
8
14
13
20
21
26
CONNECT
A
CROSS HORN
RING SWITCH
CONNECT
ACROSS HEAD
LAMP SWITCH
SPST
N.O.
RELAY
12V COIL
12V COIL
VIP OUT 1
SWB+
VIP OUT 2
SPST
N.O.
RELAY
ACCESSORIE
S
CONNECTOR
PIN 1
8
PIN 24
PIN 19
MAEPF-27618-O
SWB+
VIP OUT 2
(LIGHTS)
VIP OUT 1
(HORN)
1
7
8
14
13
20
21
26