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6.9.3. Connecting the Light Outputs, AUX1 and AUX2
This procedure depends on the wiring of the lights and auxiliary
functions in the locomotive:
a) The lamps / function outputs are insulated from the common
pole (ground) (i.e.: the locomotive chassis); therefore they are
potential free. Fig. 17 shows the correct wiring for the out-
puts AUX1 and AUX2. The functions of the locomotive must
be potential-free, in other words there may not be any other
connection to the function besides the wires from the decoder.
The voltage at these outputs is about 1.5V lower than the track
voltage. The blue wire is the „plus-pole“; the function output
the „minus-pole”.
If LEDs are installed (also refer to Fig. 17), then a resistor must be
wired in series with the LEDs. It should have a rating of between
470 Ohms and 2.2 kOhms. Running the LEDs without this resistor
will lead to their destruction!
b) The lamps / function outputs are wired (together) against the
chassis of the locomotive (as in most locomotives by Märklin®
as well as in most older locomotives by Fleischmann® and
ROCO®).
The wiring is simpler but the available voltage is about half. This
type of connection is not suitable for multi-protocol operation.
Both M4 and Motorola® packets are asymmetrical. Therefore, the
function outputs do not have continuous power. This leads to a
rhythmic flicker of the headlights (pulsing) that becomes particu-
larly obvious with LEDs.
Furthermore, the headlights will only work in one direction in
analogue DC mode. Whether it will be the forward lights or the
backup lights depends on which way you have placed your loco-
motive on the track.
Solder the backup lights to the yellow wire, the headlights to the
•
white one.
If your locomotive is wired according to option b), then it is ready
for use. Otherwise, you must connect the remaining wires of all
bulbs and functions together to the blue wire. This pole may not
have any connection to the chassis!
It is possible to use both options in the same locomotive as shown
in Fig. 17.
6.9.4. Using AUX3 and AUX4
6.9.4.1. LokPilot with 21MTC interface
LokPilot decoders with 21MTC interface have two additional out-
puts besides the 4 standard outputs, namely AUX3 and AUX4.
Since they are pure „logic-outputs“, it is not possible to connect
any external loads directly. External power transistors are required.
Connect AUX3 and AUX4 via the 21MTC interface; there are
equal to the other outputs. ESU offers an appropriate adapater
board (art.no. 51968) with transistors.
6.9.4.2. LokPilot with PluX16 interface
LokPilot decoders with PluX16 interface have all in all 6 power
outputs. Consumers can be directly connected.
6.9.4.3. LokPilot Fx V4.0
The LokPilot Fx V4.0 offers up to 6 function outputs (also refer to
Fig. 7). You can access the outputs AUX3 and AUX4 via the orange
resp. the grey wire.
The 21MTC interface version allows to switch output AUX3 and
AUX4 as either logical output or amplified output. This makes a
maximum compatibility between NEM660 and the available roll-
ing material possible.
6.9.5. AUX5 to AUX 6
LokPilot XL V4.0 decoders decoders have additional function out-
puts that may be used as desired.
Installing the Decoder
Summary of Contents for LokPilot Fx V4.0
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