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CAS-GPS IVU BASIC SYSTEMS INSTALLATION MANUAL
DOCU0085 Revision Q
Ground
Ground pickup point is the vehicle chassis. A ring terminal on a designated grounding point should be used.
Ignition Signal
Vehicle ignition should be protected by an independent 4 Amp fuse. Although the system does not draw operating
current from this source, the vehicle’s circuit should be protected against inadvertent shorts.
Basic Reverse & Forward Signals
Unless using a CAT Gear Decoder (see below) the reverse signal should be obtained from the vehicle’s reverse
buzzer or alternatively the reverse lights. The forward signal may be wired from a suitable forward gear indicator, with
the forward negative signal is tied to ground. Pickup should be made on the output side of the relays.
CAT Gear Decoder Reverse & Forward Signals
(PROD0587 CAT B,C & D or PROD0724 CAT E & F)
For vehicles using the CAT Gear Decoder, Reverse and Forward signals should be obtained directly from the
decoders outputs observing the correct polarity when connecting to the IVU.
Basic Reverse & Forward Signal wiring
is not required when using the Reverse & Forward Signals from the CAT Gear Decoder.
Input Power & Signal Connections
