71.4 GPS 19X SERIES1.4.1 GPS 19x HVSThe GPS 19x HVS interfaces to a RS-232 serial port of acomputer via a DB-9 connector and receives power through avehicle power adapter. The GPS 19x is RS-422 compatible.See the wiring diagrams for correct wiring.The GPS 19x HVS can cause an issue with Microsoft®Windows® operating systems if the DB9 connector isplugged into the computer before the computer is fullyrunning. The Windows operating system may interpret theserial connector on the GPS 19x HVS as a serial mouse.Please refer to Appendix D: GPS 19x HVS & Window SerialMouse Issue for complete details.1.4.2 GPS 19x NMEA 2000The GPS 19x is also available with a NMEA 2000 interface.See www.garmin.com/oem for details.1.5 TECHNICAL SPECIFICATIONSThe following specifications are for the GSP 19x HVS. Specifications are subject to change without notice.1.5.1 Physical Characteristics1.5.1.1 Size 3 19/32 in. (96.1 mm) in diameter and 1 15/16 in. (49.5 mm) in height1.5.1.2 Weight 7.1 oz. (201 g)1.5.1.3 Color White1.5.1.4 Case Material Fully gasketed high-impact plastic alloy, waterproof to IEC 60529 IPX7 standards1.5.1.5 Cable Length 30 ft. (9.14 m)1.5.2 Electrical Characteristics1.5.2.1 Input Voltage 8–33 Vdc1.5.2.2 Input Current 40 mA @ 12 Vdc1.5.2.3 CMOS Serial Output Levels 0 Vdc to 3.3 Vdc (Differential NMEA 0183 Serial, Compatible Polarity)1.5.2.4 GPS Receiver Sensitivity -185 dBW minimum1.5.2.5 Environmental Characteristics Operating Temperature: -22° to 176°F (-30° to 80°C) Storage Temperature: -40° to 194°F (-40° to 90°C)1.5.3 GPS Performance1.5.3.1 ReceiverWAAS Enabled® GPS receiver continuously tracks and uses multiple satellites to compute and update your position.The receiver can track and use GPS as well as GLONASS satellites at the same time. This will often exceed 20satellites at the same time.