- 1 Function module
- 2 IR-LED on/in the street
- 3 Remote control
- 4 Function decoder
A function module transmits commands to a DC-Car decoder by means of a short range IR communication (10-20cm).
There are always 8 outputs available.
By using a dip switch 11 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
Function Module B
Flashing Blue light vehicles
Function Module C
Additional lights and speed
1 = Light 2 ON
Function Module D
Function Module E
Function Module F
Function Module G
Function Module H
Function Module I
Function Module J
MF3, MF4 and MF5 functions(from 8.2016)
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.
Instead of function module I:
To make it easy for you we produce a battery powered remote control: MF plus.
The Plus version has build in test functions which can be used with the optional test set. These test functions have proved to be very usefull when building vehicles.
You can test polarity and working of LEDs as well measuring short circuits.
With the foto transistor (include in the set) your able to check the working of the IR LEDs at the back of the vehicles as well IR signals along the road.
And with the remote control it self your able to test the fototransistors at the front and the correct operation of the decoder and vehicle.
Using the function module in DCC mode with a digital center
A function module can be extended with a digital input. After extension the function module becomes a function decoder.
This enables switching the 8 outputs from a digital center using the addresses 1-8, (9-15), etc.
Note: All LEDs on each output are switched ON or OFF together! Especially in combination with other functions, like switching the light output makes sense.
The decoder can be used in the same way as the module, but offers the possibility to switch the 8 outputs separately by means of 8 digital addresses.
- central switching of "stop" for emergency OFF
- central switching of light for day-/night mode
Direction indicators are controlled by feedback sensors of junctions, lights are controlled by a digital addresses
Day/night control with a function decoder other functions still can be controlled by switches