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08-24-2010, 10:43 AM
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| Join Date: Aug 22 2010 Location: South Carolina
Posts: 3
| Interfacing a 178C to a USB port
Has anybody built the cable needed for doing this? I can't figure out what to connect the RED USB wire to. I power my 178C with a 12V source and I KNOW it wouldn't be appropriate to attach the 5V USB output to the 12V source. I have downloaded & installed the USB drivers, but when I plug the 178C into my PC it just doesn't "see" it no matter how I attach the other 3 USB wires. The BLACK wire is Ground so that only leaves two possibilities for hooking up the COM1 TX and the COM1 RX lines and neither way seems to work. (I am interested in examining the NMEA sentence output from my 178C and that's why I'm doing this interfacing.) Any help will be greatly apprciated. Thanks.
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| 178c, usb |
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