MoTeC BRX - Manual (Page 15)

MoTeC Beacon Receiver 13
Wiring
The beacon receiver signal wire should be connected to a Digital Input on a
MoTeC ADL Dash/Logger or MoTeC ECU
Do not run the wiring near the engine ignition system.
The receiver must be powered by 8V from an ADL or ECU. The receiver may
be damaged if connected directly to battery voltage.
Wire Colour Function
Red 8V Power from Dash or ECU
White Signal to Dash or ECU
Black 0V Power from Dash or ECU
Output Signal
The output is an “Active Low”, open collector type, ie. it is normally off and
switches to ground when a valid transmitter is detected.
Note that the output only stays low for a short period, even if the transmitter is
still present.
The width of the output pulse represents the beacon transmitter number (units
and tens only), and varies between 0.2 sec and 1.7 sec depending on the
number.
The output is current limited to protect the beacon receiver against incorrect
wiring.
ECU / Dash Setup
Setup the input pin as the beacon channel and set the logic polarity to “Low
Volts = Active”.