Navico TR-120 Network Terminator.
NMEA 2000® network terminators available in a set of 1 male and 1 female terminator or individually.
NMEA 2000® Network Terminators 120ohm
Each NMEA 2000 installation must have precisely two 120Ω termination resistors installed, one at each end of the backbone, to ensure proper operation and signal integrity.