On 2010-03-15, Alby <goo...@empire.org> wrote: > I'm attempting to build my own Stratum-1 Server using a Garmin GPS 18 > LVC. > After splicing out the wires, I have the following: > > Thin Yellow Wire > Thin White Wire > Thin Green Wire > (2) Thin Black Wires > Thick Black Wire > Thick Red Wire > > My question is based on the (2) Thin Black Wires. Why do I have 2 > thin black wires and not (1) thin black wire?
The GPS18 pinout is documented on page 14 of http://www8.garmin.com/manuals/425_TechnicalSpecification.pdf GPS 18 LVC & GPS 18-5Hz PINOUT GPS 18 Pin # Color Signal Name Wire Gauge 1 Yellow Measurement Pulse Output 28 2 Red Vin 26 3 Black Ground 28 4 White Transmit Data 28 5 Black Ground 26 6 Green Receive Data 28 The GPS18x pinout is documented on page 12 of http://www8.garmin.com/manuals/GPS18x_TechnicalSpecifications.pdf 2.1 GPS 18x LVC & GPS 18x -5Hz PINOUT GPS 18x Pin Color Signal Name Wire Gauge # 1 Yellow Measurement Pulse Output 28 2 Red Vin 26 3 Black Ground 28 4 White Transmit Data 28 5 Black Ground 26 6 Green Receive Data 28 > Should I splice both thin black wires together and use them a 1 wire? > Or does each thin black wire serve a purpose and I need to figure out > which one is Ground and which one the other is used for? Based on the pinout information shown in the GPS18/18x manuals the black wires are all ground wires. If you're not sure about this you should check with Garmin Support: http://www.garmin.com/garmin/cms/home/support/supportcontact -- Steve Kostecke <koste...@ntp.org> NTP Public Services Project - http://support.ntp.org/ _______________________________________________ questions mailing list questions@lists.ntp.org http://lists.ntp.org/listinfo/questions
