The Nmea4Wifi multiplexer allows bidirectional serial and wifi communication between your smart-phone, tablet or laptop and your boat instrumentation. The Nmea4Wifi multiplexer can be simply configured using a Web Browser. It has four opto-isolated Nmea 0183 input ports and one Nmea 0183 output port. The multiplexer also has an input/output USB port. One of the 4 input ports can be configured to receive SeaTalk1 data which will be converted to Nmea 0183 data. Wifi communication can use both the UDP and the TCP internet protocols. In total there can exist 6 input streams of data (4 serial, 1 UDP and 1 TCP) and 3 output streams of data (1 serial, 1 UDP and 1 TCP). The 6 input streams can be filtered, combined and transmitted to the receivers on any of the 3 output streams. Serial output can also be filtered.
Please go here and check the description and characteristics of this new powerful multiplexer.