Supply Of Master Controller, Master Controller Card With 5V / 2Amp , Power Supply Suitablet E For Double Face Coach Guidance Display Board Installed At Dhd Station Specification -Pcb Glass Proxy Fr-4 Grade , Power Supply 5 Volt , 2Amp. Isolation For Communication , Opto Isolation , Power Supply Option For Controller And Cards 5V For Driver And 5V / 12V / 24 V For Led Card , Fitting Arrangement Modular Diagnostic Commands Coach Id All On , All Off, Operating Temprature 0 Degree To 70 Degree C .