Using Infra-red Function Module FB-A

The FB-A controls the following functions:

Connection 1 = Set speed to drive position 0 (stop)
Functions like an infra-red stop module.
The vehicle brakes and stops. Stop light turns on automatically.

Connection 2 = Headlight on
The vehicle switches its headlights and taillights on.
Neither the photo-sensor or the DCC controller can turn the headlights off.

Connection 3 = Headlight off
The vehicle switches its headlights and taillights off.
The photo-sensor and the DCC controller can control the headlights again.

Connection 4 = Left indicators on
The vehicle switches the left indicators on.
The DCC controller cannot turn the indicators off.

Connection 5 = Right indicators on
The vehicle switches the right indicators on.
The DCC controller cannot turn the indicators off.

Connection 6 = Indicators off
The vehicle switches both the left and right indicators off.
The DCC controller can control the indicators again.

Connection 7 = Set speed to drive position 14
The speed is set to drive position 14. (approx. half speed)
If the vehicle was going faster then the brake light is activated.

Connection 8 = Set speed to drive position 28
The speed is set to drive position 28 (maximum speed)

With this module the basic functions of a car can be controlled.

Example, the junction of a side street into a main street:

Five infra-red LEDs are needed. (the numbers mark the connection)

--> 7 --> 5 --> X --> 6 --> 8 -->>

LEDs 7 and 5 are positioned before the junction.
LED X is at the junction.
LEDs 6 and 8 are positioned after the junction and also affect the main street.

The junction is clear and the vehcile can drive into the main street
LED 7 is on
LED 5 is on
LED X is switched to connection 7 (drive position 14)
LED 6 is on
LED 8 is on

The vehicle arrives at LED 7 and slows to drive position 14.
At LED 5 it switches the right indicator on.
It carries oninto the main street, because LED X is switched to 7 (drive position 14).
At LED 6 it turns off the right indicator.
At LED 8 it accelerates back maximum speed.
Note: The connections 7, 5 and X can all be the same physical LED, as can 6 and 8.
See the diagram below point 2. There the connections 1 and 5 are both attached to a single LED.
Two diodes (1N4148 or 4001) must be included in the circuit.
Thus using a single LED the vehicle is stopped and the right turn signal is switched on.
The junction is not clear and the vehicle must stop
LED 7 is on
LED 5 is on
LED X is switched to connection 1 (stop)
LED 6 is on
LED 8 is on

The vehicle arrives at LED 7 and slows to drive position 14.
At LED 5 it switches the right indicator on.
At LED X it stops with the right indicator still on.
When the junction is clear LED X is switched to connection 7 (drive position 14).
The vehicle accelerates in into the main street.
At LED 6 it turns off the right indicator.
At LED 8 it accelerates back maximum speed.
Note: The connections 7, 5 and X can all be the same physical LED, as can 6 and 8.
See the diagram below point 2. There the connections 1 and 5 are both attached to a single LED.
Two diodes (1N4148 or 4001) must be included in the circuit.
Thus using a single LED the vehicle is stopped and the right turn signal is switched on.

Example, headlights turn on in a tunnel:

Two infrared LED are needed. (the numbers mark the connection)

--> 2 --> Tunnel --> 3 -->>

LED 2 turns on the headlights on
LED 3 turns them off again

Example, local speed restriction:

Two infrared LED are needed. (the numbers mark the connection)

--> 7 --> Place --> 8 -->

LED 7 decreases the speed before the place
LED 8 increases the speed again after the restriction

Disclaimer:
This page has been translated, with permission, from a page on Claus Ilchmann’s web site.
The original page, in German, is located here.
This translation is provided with no guarantee of accuracy or liability for errors.
Should you decide to use the DC-Car system then you should check that the functionality meets your needs by reference to the manufacturer’s web site.