Category:Módulo de funciones, decodificadores de función

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Function Modul
Light on / off

Function Modules


A function module transmits commands to a DC-Car Decoder by means of a short ranche IR communication (10-20cm).
There are always 8 outputs available.
By using a dipswitch 10 different module types are available
Supply voltage can be 12V - 16V AC or 12 - 16V DC
The outputs offer a current of 1A

By using a diode-circuit with 1N400x diodes it is possible to transmit multiple commands on one IR LED.

Stop module (All switches ON)

All switches ON Stop module means all 8 outputs sending a stop signal

Function Module A

Basic Commands
Dipswitch 1 must be set ON
1 = Speed at speed step 0 (stop)
2 = headlights 1 ON
3 = headlights 1 OFF
4 = Left indicator ON
5 = Right indicator ON
6 = Indicators OFF
7 = Speed at speed step 14
8 = Speed at speed step 28

Function Module B

Flashing Blue light vehicles
Dipswitch 2 must be set ON
1 = Speed at speed step 0 (stop)
2 = Hazard lights on
3 = Hazard kights OFF
4 = Flashing blue-light ON
5 = Flashing blue-light OFF
6 = Front-flasher ON
7 = Front-flasher OFF
8 = Speed at speed step 28

Function Module C

Additional lights and speed
Dipswitch 3 must be set ON

1 = Light 2 ON
2 = Light 2 OFF
3 = Light 3 ON
4 = Light 3 OFF
5 = Speed + 2 steps (accelerate)
6 = Speed - 2 steps (slowdown)
7 = Speed at speed step 10
8 = Speed at speed step 21

Function Module D

special functions

Function Module E

automatic module

Function Module F

special functions

Function Module G

Flashing blue-light vehicles

Function Module H

standard collection

Remote control mode I (all off)

All links (jumpers) or switches OFF Now at the outputs the commands of a mobile transmitter are available

Collection as mobile transmitter: the chip has been collected with the functions of the different modules. The letter marks the module, the number its output connector.
D1 time-controlled stop (programmed via CV108) blinker OFF
D5 run-up after stop (time is out) with drive position from CV110 (z.B. 1) blinker OFF
C5 speed +2 (accelerate CV 98)
H2 all lights OFF
A4 blinker left (with CV27=64 blinker right + left (same time) = anti-collision-lights possible)
A5 blinker right (with CV27=64 blinker right + left (same time) = anti-collision-lights possible)
A2 running light 1 (with CV60 light 1, 2, 3 and 4 at the same time possible)
H6 flashing blue-lights and front-flashers with siren (alternative: switch to continuous light for another two lights)

Function Module J (Dipswitch 1+2)

up 1.Sep.2016 Additional lights
Dipswitch 1+2 must be set ON

1 = (MF3) ON
2 = (MF3) OFF
3 = (MF4) ON
4 = (MF4) OFF
5 = (MF5) ON
6 = (MF5) OFF
7 = Speed at speed step 0
8 = Speed at speed step 0

Function Module SW

This module combines the functions of all modules in one.
All links (jumpers) or switches 1 - 8 OFF: all outputs transmit drive position 0 (8 times stop module)
All links (jumpers) or switches 1 - 8 ON: 8 mobile transmitter commands

Link(jumper) or switch "ON":
0 = stop no link
1 = FB-A link 19-9
2 = FB-B link 19-8
3 = FB-C link 19-7
4 = FB-D link 19-6
5 = FB-E link 19-5
6 = FB-F link 19-4
7 = FB-G link 19-3
8 = FB-H link 19-2
all = mobile transmitter mode

IR-LED on/in the street

Mounting of the IR-LED on the site:

The IR-LED is placed in or nearby the street in such a way that the cars can "see" the IR-light, emitted by the LED and execute the transmitted function at the intended place.
The IR-LED must be adjusted in a way, that the approaching vehicles can "see" it. On a straight line the vehicles detect the desired function in a distance of approx. 5 - 15cm from the LED
Sometimes a IR-LED influences the traffic on a parallel line too. In this case you can either increase the series resistor to decrease the range of the IR-signal or mount the LED into the street in a way that its IR beam lights vertical only. If you do the second, please use LED with a wider angle of reflection. Distance of the LEDs shoul be 5 - 10cm, but it is highly recommended to test it in every single case!

When the car passes the first LED it will start slowing down - an when it reaches the second LED in most cases it is that slow,
that it can come to a stop right there.
Using cars with a significiant lag it can be neccessary to use more LEDs

The LEDs are connected to the same connector, each ussing its own series resistor.

Mobile Transmitter SW

Using a more complex circuit, more commands of the SW function module are usable.


For complexity and error rate are to high for self-construction, our mobile transmitters are produced in series

Actually tthe first upgrades are available:

  • charge connector is designed for 11 - 13V

on the other hand the charge connector delivers low voltage/current so it can be used for testing LED

  • this connector can be extended for use as a continuity tester

LED test function is still available using this feature but another LED shows continuity

  • solder a phototransistor to a plug and plug this into the jack

when the phototransistor is lighted, the LED of the continuity tester will glow
So you can check the IR-signals of the DC-Car System anytime

  • possible extensions

with a built-in DC06 decoder, all signals could be shown by indicator lamps/LED
this wouuld enable you to check if in fact, a mixed signal is transmitted or a single signal only
this would make the mobile transmitter to a unversal tool for the DC-Car System

Function Decoder

Using the function module in DCC mode with a digital central A function module can be extended with a digital input
After extension with a digital input the finction module becomes a function decoder
This enables switching the 8 outputs from a digital central using the addresses 1-8 (9-15)

Gerade in der Kombination mit anderen Funktionen macht das Schalten des Lichtausgang Sinn.

The decoder can be usd the same way as the module but offers switching by using 8 sequenced adresses

- central switching of "stop" for emergency OFF
- central switching of light for day-/night mode

Blinkers are controlled by feedback sensors of junctions, lights are controlled by a digrital address

day/night control with a function decoder
Tag / Nachtsteuerung mit einem Funktionsdecoder.
other functions still can be controlled by switches


This category has the following 2 subcategories, out of 2 total.