CrimeStopper BSD-200, Руководство по установке

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wire connections
Wiring Connections
Before making any connections, it is recommend to use a DMM (Digital
Multi Meter) to test the wiring. There are (5) wiring connections that are
needed to be made.
1. Ground (Black) – Grounding the MCU should always be the first
connection made to ensure that the system will not accidentally
short out. For proper grounding, it is recommend grounding the
wire to a paint free piece of metal.
2. Reverse Input (Purple) – This wire needs to be connected to a wire
that gets 12V when the vehicle is placed into reverse. To find the
reverse wire, locate the reverse lamp on the vehicle and use your
DMM to test the wires while the vehicle is in Reverse. Some vehicles
do require the vehicle to be running so setting the parking brake
and having a second person change the shifter is recommended.