This Command Station is designed to control the Model Railroad and already includes Z21 emulator inside itself.
Ammeter (yellow). Shows the current amperage on the rails in Amps.
Voltmeter (green). Shows the current voltage on the rails in Volts.
Reset button. Allows resetting the Command Station.
Auxiliary 7V power output. Could be used to supply auxiliary modules and decoders.
Build-in Z21 emulator features:
S-88N input. S88 feedback but input.
Micro USB. Allows Connection to PC to control model railroad from PC program.
WiFi. Allows controlling of locomotives from IOS/Android application “ROCO Z21”
XpressNet. Allows connection of external devices such as MultiMaus