Interfacing differential NMEA 0183 devices to single ended NMEA 0183 devices
While most marine electronics products having a NMEA 0183 communications interface feature a standard differential NMEA 0183 v2.0 communications interface (i.e. dedicated signal high (A/+) and low (B/-) terminals or leads for each NMEA 0183 channel), some third party products (ex. Garmin, etc.) feature a single ended NMEA 0183 communications interface. In such cases, the Raymarine Product's NMEA 0183 B/- lead/terminal will be interfaced to the third party product's NMEA 0183 Data Common lead or ground lead which in turn will be interfaced to -12VDC.
![[Image: attachment.php?aid=1116]]()
RAYFAQ#
![.jpg]()
Clipboard02.jpg (Size: 15.96 KB / Downloads: 1)
While most marine electronics products having a NMEA 0183 communications interface feature a standard differential NMEA 0183 v2.0 communications interface (i.e. dedicated signal high (A/+) and low (B/-) terminals or leads for each NMEA 0183 channel), some third party products (ex. Garmin, etc.) feature a single ended NMEA 0183 communications interface. In such cases, the Raymarine Product's NMEA 0183 B/- lead/terminal will be interfaced to the third party product's NMEA 0183 Data Common lead or ground lead which in turn will be interfaced to -12VDC.
RAYFAQ#
Clipboard02.jpg (Size: 15.96 KB / Downloads: 1)