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Fitting Instructions
Converter
EN
Requirements:
1. The converter is suitabel for indescent
lamps and luminescent diodes (LED) even
with electronic devices.
2. The mounting location must not be ex-
posed to direct splash water (de-icing salt
corrodes).
3. The mounting location must have air circu-
lation (do not wrap in insulation material).
4. All connections must be carried out
carefully. Crimp isolated crimp connectors
well. Insulation displacement connectors
must be used according to the cable size.
Installation:
1. All wires must be dead before tapping
2. Fix the converter with the M4 screws
supplied
3. First of all make the connection to ground
(negative, clamp 31). Then connect the
seven lines parallel to the loom of cables
on the trailer. Use the ground line of the
cable loom if present. The cables must be
connected as follows (input and output
are the same colour):
www.herthundbuss.com
76121451
Function
Code
Colour
Ground
31
white
Direction indicator, left
L
yellow
Direction indicator, right
R
green
Rear lamp, left
58L
black
Rear lamp, right
58R
brown
Stop light
54
red
Rear fog lamp
54g
blue
Reversing lamp
..
violet
4. Use a test lamp to ensure correct function
of the trailer socket.
Fitting Instructions
Disturbances:
The short circuit protecting device prevents
series fuses from blowing. When the short
circuit is eliminated, the converter automati-
cally resets itself after disconnection of the
input. In case of overheating (e.g. accumu-
Flasher left yellow L
Ground
white 31
L
31
4
5
lation of heat caused by covering) the con-
verter could heat itself to a point where the
power of the bulbs is reduced. After cooling
full power is available again.
Flasher right green R
Stop light red 54
Rear lamp left black 58L
Rear lamp right brown 58R
Rear fog lamp blue (54g)
Reversing lamp violet (RL)
76121451
Lead ground
through or from
one side to the
converter
54 58L
R
58R
R
54g
L
RL
31
Socket
24V
76121451
EN
Cable loom
Connection in
cable case or
in parallel to the
rear lights
two sockets
mounted
54 58L
58R
54g
RL
Socket
12V
Technical data:
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