NM-251BRC is a Baud Rate configurable converter 4800, 9600, 19200, 38400 as
Input and configurable output of 4800, 9600, 19200, 38400.
The NM-251 acquires the NMEA-0183 sentences with a specific baud rate from
the InA port and outputs data at the baud rate that you configure
Rate Converter (manual)