Actisense NMEA 0183 Intelligent MultiplexerNMEA 0183 Intelligent Multiplexer Eight OPTO isolated inputs and six ISO Driveisolated outputs. Offering device protection and excellent flexibility, all in one product. The PRO MUX 2 is rugged, with a stainless steel housing, and provides isolation on all inputs and outputs. With eight NMEA 0183 inputs, six NMEA 0183 outputs, a bi directional serial port, and an Ethernet port, the PRO MUX 2 is a perfect solution for larger leisure vessels, commercial