Garmin GPS 19x HVS Technical Specifications

Also see for GPS 19x HVS: Installation instructions

Garmin GPS 19x HVS Technical Specifications Manual pdf 10 page image

10Figure 2. PDA Serial Port InterconnectionFigure 3a. GPS 19x NMEA 0183 HVS Wired for Two-Way CommunicationExceptions:If your NMEA 0183-compliant device has only one receiving wire (Rx), connect it to the gray wire (Tx/A) from theGPS 19x antenna, and leave the white/red wire (Tx/B) from the antenna unconnected.If your NMEA 0183-compliant device has only one transmitting wire (Tx), connect it to the white wire (Rx/A) fromthe GPS 19x antenna, and connect the white/orange wire (Rx/B) to ground.Note: The orange (accessory on) wire is used when wiring the GPS 19x to a Garmin chartplotter, or other NMEA0183 device that has a defined accessory signal wire. If you are wiring the GPS 19x to a device that does not have anaccessory signal wire, the orange wire from the GPS 19x should be connected to ground.Caution: If you are wiring the GPS 19x to a device that does not have an accessory signal wire, connect theGPS 19x power wire to the ignition or install an in-line switch. The GPS 19x can drain the battery of the boat if it isnot switched.