With the Z21 app, operation is particularly easy because the signal types are also stored in the app and can be read out automatically from the decoder. RailCom® makes programming via the main track (POM) a lot easier, even when it is installed.
In addition, the Z21 signal DECODER can be easily configured and updated using the Z21 pro LINK.
By confirming the programming button, the address of the next switching command can simply be adopted as the new address for the Z21 signal DECODER.
Easy connection

A separate DC supply can be connected so as not to unnecessarily load the outputs of the central unit or booster. If the wiring is as simple as possible, the rail signal can simply be used as the supply.
The outputs are also protected against overload and short circuits. The signals are connected with a common plus. Each LED is connected to the Z21 signal DECODER with its own series resistor, because the output voltage corresponds to the supply voltage.