Lots of systems still use NMEA 0183 for connectivity. It’s a simple two wire system but there’s no standard colour codes or connector type. This means installers need to design their own solution. NMEA devices that transmit data are called “talkers” and they connect to devices that receive data – “listeners.” In other words, NMEA OUT goes to NMEA IN. With a plus and minus polarity for NMEA data, it involves two wires and while a talker can broadcast to multiple listeners (typically up to 5 devices), two talkers can’t connect together without using a specialist multiplexer.
A typical installation would be connecting an AIS transponder to a plotter. The NMEA out from the AIS would connect to the NMEA input on the plotter. If you need to add wifi connectivity for an iPad or tablet, then our WLN10SM could also connect to the NMEA output of the AIS. Some devices may have multiple NMEA outputs. One at 4800 baud for traditional instruments and one at 38400 baud for AIS. These both require their own dedicated wiring.
The new JB1 junction box from Digital Yacht is a simple, easy to install solution for NMEA 0183 and power connections. It uses a patented spring lock terminal system from Wago. This allows various sized cables to be connected and joined in seconds.
The internal connections use a patented Wago system. The two way joining blocks measure just 12 x 18mm and you can be remove this to aid inserting thin and fiddly cables. Open the lever, insert the cable and snap shut for a reliable insulated connection.
“Get NMEA data into your PC or MAC with this super stable interface.”
“Connects to any NMEA AIS compatible chart plotter and adds an AIS overlay. Simple to install, highly sensitive dual channel design that’s easy to install with Garmin, Raymarine, Standard, Lowrance, Simrad, Furuno etc plotters.”
“One NMEA2000 to NMEA0183 Gateway/Converter for all your data needs”
“NAVDoctor is the perfect NMEA 2000 diagnostic tool for dealers, installers and boat builders. It turns any mobile device in to an NMEA 2000 network analyser, creating simple and clear web pages that show the health and status of your NMEA 2000 network.”
“This smart NMEA to WiFi gateway allows tablets & mobile devices to connect to existing on board GPS, AIS and instrument systems.”
“The WLN30 is a smart NMEA to WiFi Multiplexer designed to connect your smart phone and other wireless devices to your boat’s navigation systems. It features three NMEA0183 inputs and easy web interface configuration.”