For interfacing NMEA signals to the TT-3000E mini-C GMDSS system, the TT-3606E Opt. 003 NMEA Adapter is used. It is designed to be located inside a vessel close to the TT-3606E Message Terminal.
It includes one NMEA talker port and one NMEA listener port. The listener port is galvanic isolated from ground (according to IEC 61162-1 & 61162-2). The ports can operate at baud.