Assembly Instructions

4.3.2

VIP Input Connections

The VIP input pins are only available on the back of the control head (remote mount).

These connections control inputs from switches. One side of the switch connects to ground while the

other side connects to a buffered input on the control head. The switch can be normally closed (NC) or

normally open (NO) depending on the configuration of the VIP inputs. The following are the three VIP

input connections:

Table 14: VIP Input Connections

VIP IN NUMBER J400 J2

Ground Pin

Number

On/Off Switch-

ed Pin Number

Ground Pin

Number

On/Off Switch-

ed Pin Number

1 2 (green) 8 (white) NA NA

2 2 (green) 9 (orange) NA NA

3 2 (green) 10 (violet) NA NA

NOTICE: Remote Mount requires the VIP cable to be attached to J400.

MCH installations require the VIP inputs to be connected to the head assigned ID #1. See Setting the

Initial Control Head ID on page 56 for further information.

CAUTION: ASTRO mobile radios equipped with the following features are able to transmit

automatically, even if the radio is turned off:

• Automatic Vehicle Location

• Other Special Data Products

All ASTRO mobile radios have accessory connector pins 14 and 15 connected together to allow

the radio to power down. Opening this connection by removing the accessory connector, or

otherwise failing to maintain a normally closed path, could, if left unchecked, drain the vehicle

battery, and possibly cause transmissions to occur.

4.4

Compatibility of Emergency when Attaching a Siren

Procedure:

1 When using emergency footswitch or pushbutton with siren/PA configuration, REMOVE pin 8

(emergency) from the siren connector of the HKN4363_ siren cable.

Figure 95: Field adjustment for Emergency Operation with Siren Accessory

MN005720A01-AB

Chapter 4: Options and Accessories Installation