Garmin 17x Technical Specifications - Page 11
PDA Serial Port Interconnection, a. GPS 17x NMEA 0183 HVS Wired for Two-Way - gps antenna
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Figure 2. PDA Serial Port Interconnection Figure 3a. GPS 17x NMEA 0183 HVS Wired for Two-Way Communication Exceptions: If your NMEA 0183-compliant device has only one receiving wire (Rx), connect it to the gray wire (Tx/A) from the GPS 17x 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) from the GPS 17x antenna, and connect the white/orange wire (Rx/B) to ground. Note: The orange (accessory on) wire is used when wiring the GPS 17x to a Garmin chartplotter, or other NMEA 0183 device that has a defined accessory signal wire. If you are wiring the GPS 17x to a device that does not have an accessory signal wire, the orange wire from the GPS 17x should be connected to ground. Caution: If you are wiring the GPS 17x to a device that does not have an accessory signal wire, connect the GPS 17x power wire to the ignition or install an in-line switch. The GPS 17x can drain the battery of the boat if it is not switched. 190-00885-07 GPS 17x HVS Technical Specifications Page 7 Rev. A