This way the z21 start can accept commands for locomotives and turnouts via the WiFi interface and process them.
Roco Digital z21 WiFi Package N/HO/OO Gauge RC10814
Roco Central Digital Z21 Start DCC Set Digital Base By Start Set
Roco 10807 Digital Z21 Dual Booster 2x3a
Roco 10870 Digital Z21 XL Control System
Roco 10836 Digital Z21 Switch Decoder
Roco 10819 Digital Z21 X16 Detector
