Version 29.11.2022
HW: BOT(V43)(V54)
RL4-NAC12
P
a
g
e
19
2.5.2.2.
Case 2: Video interface does not receive the reverse gear signal
If the video interface does not carry +12V on the green wire
„Reverse-OUT“
of the 20pin
cable when reverse gear is engaged (not all vehicles are compatible), an external switching
signal from the reverse gear light is required. As the reverse gear light’s power supply isn’t
voltage-stable all the time, an ordinary open relay (e.g AC-RW-1230 with wiring AC-RS5) or
filter (e.g. AC-PNF-RVC) is required. The diagram below shows the connection type of the
relay.
Connect the green input cable
“Trig.-REAR”
to the output connector (87) of the relay.
Connect the Reverse light’s power-cable to coil (85) and the vehicle’s ground to coil
(86) of the relay.
Connect the output connector (87) of the relay to the rear-view camera’s power-
cable, like you did it to the green
“Trig.-REAR”
cable before.
Connect permanent power / 12V to the relay’s input connector (30).
Note: If, due to a missing CAN communication, interface has been connected the analogue
way, the green wire’s connection has also to be done as shown in the picture above.
For analogue connection, dont forget to set dip4 to OFF!
