ZNR-140 4ch NMEA Buffer/Converter is a high reliable serial data buffer and converter for relaying such NMEA 0183 data received from one signal talker to four RS422/RS232 listeners. It is able to receive and transmit any type of serial data such RS422, RS232 and 5V TTL signal independently. This buffer provides full DC isolation between input, outputs and input power. NMEA Buffer is also called as a splitter, a distributor, an expander and an amplifier.