This is the DCC Concepts Universal DCC Accessory Control with Alpha Encoder Unit [DCC-UAA]

Universal DCC Accessory Control with Alpha Encoder Unit – Up to 12 Accessories

Control digital point motors and lighting with AEU. Create your own contrl panel with toggle switches, push-buttons or levers, then simply connect AEU to the Alpha Interface with the included “curly cable”. Simply connect the Alpha Interface to your DCC Track Bus!

Pack Contents
1x DCC-ESP.RX – ESP Receiver and Alpha Interface
1x DCD-ACL – RJ12 Alpha Curly Lead
1x DCD-AEU – Alpha Encoder Unit