Chapter 1: System Connections 13SmartPilot computer NMEA inputs/outputsNote:Do NOT connect more than one piece of equipment to each SmartPilot computerNMEA input.NMEA connectivity overviewNote:When connected to a NMEA navigator, S2 & S3 systems look at NMEA 1 first. IfNMEA 1 has no data, it then looks at NMEA 2. If both channels have the same type of nav-igation data, NMEA 1 is used.S1 Systems S2 & S3 SystemsThe S1 has a single NMEA input/output toreceive and transmit information fromNMEA equipment.S2 and S3 systems have two sets of NMEAinputs/outputs to receive and transmitinformation from NMEA equipment.SmartPilot computer NMEA inputsNMEA 0183receivedS1 S2 &S3Information extractedAPB ¸ ¸ cross track error, bearing to waypoint, waypointnumberBWCBWR¸¸¸¸bearing to waypoint, distance to waypoint, way-point number, timeGGAGLL¸¸¸¸latitude/longitude, timeHDGHDMHDT¸¸¸¸¸¸headingMWV ¸ ¸ apparent wind angle, apparent wind speedRMA ¸ ¸ course over ground (COG), speed over ground(SOG), latitude/longitude, variationRMB ¸ ¸ cross track error, bearing to waypoint, distance towaypoint, waypoint numberRMC ¸ ¸ course over ground (COG), speed over ground(SOG), latitude/longitude, time, variationVHW ¸ ¸ speed through water, headingVTG ¸ ¸ course over ground (COG), speed over ground(SOG)VWR ¸ ¸ relative apparent wind angle, relative apparentwind speedXTE ¸ ¸ cross track errorZDA ¸ ¸ time, date
