Chapter 3 Options and Accessories Installation
3.1 VIP Overview
The vehicle interface port (VIP) allows the control head to operate outside circuits and to receive
inputs from outside the control head. There are three VIP outputs which are used for relay control.
There are also three VIP inputs which accept inputs from switches.
3.1.1 VIP Output Connections
The VIP output pins are on the back of the control head (J400), or the rear accessory panel (J2). The
pin information is shown in Figure 2-8 and Figure 3-9, respectively. Use these connections to wire
control relays. One end of the relay should connect to switched B+ voltage, while the other side
connects to a software controlled ON/OFF switch inside the control head. The relay can be normally
on or normally off depending on the configuration of the VIP outputs. There are three VIP output
connections, as follows:
The function of these VIP outputs can be field programmed in the control head. Typical applications
for VIP outputs are external horn/lights alarm and horn ring transfer relay control. For further
information on VIP outputs, see the control head programming manual.
VIP OUT 1 and VIP OUT 2 can be accessed from either J100 or J400 connectors. This is to allow a
previously wired VIP OUT at J2 to move easily to J100. However, when any cable is inserted into
J400, J100 VIP OUTs are disabled.
Table 3-1. VIP Output Connections
J400 J2 J100
VIP OUT #
SW B+ Pin
Number
On/Off
Switched
Pin Number
SW B+ Pin
Number
On/Off
Switched
Pin Number
SW B+ Pin
Number
On/Off
Switched
Pin Number
1 red 1 5 (blue) 24 18 24 18
2 red 1 6 (yellow) 24 19 24 19
3 red 1 7 (black) NA NA NA NA
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