The unit in particular translates NMEA 2000 to NMEA 0183. If you like, I can send you the Maretron box for temporary use to investigate. I imagine you would need to setup a temporary NMEA network, which means a at a minimum a power cable, terminator, and at least two micro connectors. Do you have any of that?
Here is the manual:
http://www.maretron.com/support/manu...B100UM_1.2.pdf