Whether at railway stations, events, or at the point of sale (POS), the targeted display of digital information or advertising content in spaces featuring high volumes of public traffic is experiencing ever-increasing growth. The NEC CAT 5 system for video signals has already been successfully deployed into the market for some months now. However, NEC CAT 5 system with significantly enhanced functionality. In addition to its video connector, the receiver model now offers an audio output port as well as a RS232 interface. The device is ideal both for deployment in completely installations as well as for upgrading existing systems. The RS232 interface not only allows displays to receive a signal but also allows them to transmit signals in response. For even more realistic and vibrant imaging, the NEC CAT 5 system also supports Full HD resolution.