N2KAnalyzer® is a software tool, currently offered free of charge with the purchase of a USB100 NMEA 2000/USB gateway, which gives you a detailed view of all of the devices on a NMEA 2000® network, and lets you perform an enormous variety of configuration and troubleshooting tasks. All you need is a PC running Windows and a Maretron USB100 NMEA 2000 gateway.