Opto-coupler for NMEA signals

The Actisense OPTO-4 is a two-way NMEA 0183 / RS422 to RS232 interface cable that provides a secure method of connection between Olex and gps/ais/other devices. The optoisolator prevents unwanted and potentially harmful interference on the signal cable.
| OPTO-4 WIRE COLOR | PIN |
|---|---|
| Blue: | RS232 PC ground |
| White: | RS232 PC Tx |
| No isolation | Shield |
| Red | NMEA listener A/+ |
| Black | NMEA listener B/- |
