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Installation manual
trailer light converter ABW 24-12-6H
Requirements:
1. The converter is only suitable for the operation of incandescent bulbs and RMS-LEDs *1).
2. The installing locality mustn't be exposed to splash water (de-icing salt risk).
3. The installing locality must show air circulation (no wrapping in insulating material!).
4. All connections have to be made very carefully. Insulated crimp connections have to be pressed
together adequately, insulation displacement connectors have to be used according to cable size.
Installation:
1. All wires must be dead before tapping.
2. Fixing of the converter with delivered M4-screws.
3. First of all make connection to ground (31), then connection of the seven lines in parallel to the
loom of cables of the trailer. The cables have to be connected as follows. Input and output are of
the same colour. Rear lamp left and rear lamp right may never be connected!
Blinker links
Blinker rechts
Schlussleuchte links Rear lamp left
Schlussleuchte rechts Rear lamp right
Bremsleuchte
Nebelschlussleuchte Rear fog lamp
4.
Socket test lamp for functional testing.
Special case:
For the replacement of a damaged original converter in a DB UNIMOG also the second converter must be
removed. Please ask for replacement instruction.
Disturbances:
The short circuit protecting device prevents the blowing of series fuses. When the short circuit is eliminated, the
converter automatically resets itself after disconnection of the input. In case of overheating (e.g. accumulation of
heat caused by covering) the converter could heat itself to a point where the power of the bulbs is taken down. After
cooling, full power is available again. So the converter doesn't get out of order.
Voltage measuring with normal multimeters is only conditionally possible.
Because of the special converter principle (RMS-power converter), such a meter only indicates about a quarter of
the input voltage at all lines (basic load 5W) except the flashing units where the voltage is indicated nearly exactly
(basic load 21W). For details, please see testing instruction.
Notes:
*1) RMS-LEDs are working with internal series resistors or other suitable techniques. If reduction of light intensity occurs in
RMS pulse operation the reduction must remain within the light intensity limits of the ECE regulations (R6, R7, R23, R38).
If series resistor technology is used, light intensity reduction of 20% to 35% must be expected. The nominal light intensity of the
LED lamp unit for 12V operation is mentioned in the manufacturer's ECE approval.
Caution! ISO –Colours
Flasher left yellow L
Flasher right green R
Stop light red 54
Ground
Rear lamp left black 58L
white 31
Rear lamp right brown 58R
Rear fog lamp blue (54g)
ABW 24-12-6H
Lead ground
through or from
one side to the
converter
54 58L
R
58R
L
54g
31
Socket
12V
Funktion
Function
Masse
Ground
Flasher left
Flasher right
Stop light
54 58L
R
58R
L
54g
31
code
31
weiß/white
L
gelb/yellow
R
grün/green
58L
schwarz/black
58R
braun/brown
54
54g
For measuring a basic load of 5W/21W is required!
Technical data:
Maximum load: flasher 2x21W,
Cable loom
other lines 60W each
Connection in
cable case or
Efficiency: flasher ab. 90%,
in parallel to
the rear lights
other lines ab. 95%
Dimensions: 200 x 70 x 25mm
without cable outlet
Mounting hole distance: 185mm,
Weight: 960g
If 2
sockets
installed
Socket
24V
Farbe/colour
rot/red
blau/blue
Level 11/13
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