The NMEA expander 2NMEAto2+2 is used to
distribute the data from two serial sources
(NMEA/RS422) to each of 2 receiver
(NMEA/RS422 or RS232).
It distributes the input signals of CH1
(NMEA/RS422) to CH2 and CH3 (NMEA/RS422).
It also distributes the input signals from CH0
(NMEA/RS422) to CH5 and CH6 (RS232).
