What is a Multiplexer (MUX)?
SOB can use two serial (COM) ports for connecting to your navigation instruments. If you have more than two devices you wish to connect (eg: GPS, AIS, Wind, Depth, RADAR etc etc) then you will need a multiplexer which “merges” all the data from these devices into a single “data stream” which will connect to a single COM port on the PC. We recommend MUXes from http://www.brookhouseonline.com/ (New Zealand) or www.shipmodul.com (Netherlands/UK).