DCC-UAC Universal DCC Accessory Control with Alpha CentralUniversal DCC Accessory Control with Alpha Central Up to 12 Accessories Control digital point motors and lighting with the push button interface of Alpha Central. Installation is very straightforward simply connect the Alpha Interface to your DCC Track Bus, then plug in Alpha Central! Compatible with all DCC systems. Pack Contents 1x DCC ESP. RX ESP Receiver and Alpha Interface 1x DCD AEC Alpha Central Integrated 12 Way Integrated Digital Control Panel