denk dat je verkeerd redeneert. Trk is de digitale spanning die komt van de tracks of een digitale
ringleiding.PW A + B is dan een onafhankelujke voeding en heb je de handleiding niet want staat er duidelijk :
The terminals PW A and PW B serve as the power supply
connecting pints of the SignalPilot. You can either use the digi-
tal track voltage or use an external power supply. An external
power supply is particularly recommended for larger layouts,
because the electric energy does not have to be taken from the
command station or booster.
c) Connect the Terminals Trk A and Trk B to the track output of
the command station (or boosters) from which the SignalPilot
should receive its commands