ABC-module

Asymmetric digital voltage is a simple way to keep locomotives in front of signals with appropriate decoders without having to set the travel controller to zero. The digital signal is thereby changed in such a way that the positive and negative pulses receive different peak values. A directional dependency is possible so that the red signal can be passed in the opposite direction. Many decoders understand this method, which is also known as ABC braking distance. Among other things, the decoders are from ZIMO, Umelec, Lenz and ESU (from version 4). The method was developed by the Swiss company Umelec.
The module contains a bridging relay for the continuation of the green signal.
The full version also includes a two-color status LED, two buttons for stationary operation, and the possibility of connecting a two-signal signal. Furthermore it has the possibility to obtain the own power consumption via separate connections, so that it is also possible to operate behind occupancy detectors with current sensors.
Basic version with pin strips
Full version with screw terminals