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Forum: OpenCPN 29-08-2015, 11:53
Replies: 17
Views: 2,889
Posted By SeaSon
Re: No GPS if laptop is charging. strange

Assumptions are being made. Is your adaptor rs232 or rs422? Wire accordingly, but it should be 422 as that is nmea 0183 signaling - I believe without double checking.

422 is differential,...
Forum: OpenCPN 28-08-2015, 21:09
Replies: 17
Views: 2,889
Posted By SeaSon
Re: No GPS if laptop is charging. strange

And is one of the two nema wires a ground?
-If not, why is there not a ground wire.
- If so, did you reverse thier pin connections?

Sent from my SAMSUNG-SGH-I537 using Cruisers Sailing Forum...
Forum: OpenCPN 28-08-2015, 12:34
Replies: 17
Views: 2,889
Posted By SeaSon
Re: No GPS if laptop is charging. strange

Floating grounds ...

Sent from my SAMSUNG-SGH-I537 using Cruisers Sailing Forum mobile app
Forum: OpenCPN 28-08-2015, 11:49
Replies: 17
Views: 2,889
Posted By SeaSon
Re: No GPS if laptop is charging. strange

Aw, come on now. $5 bucks says you've got one of the data and ground wires in the cable converter to the laptop's USB reversed. Maybe from the factory (reverse vs straight or vice versa), or maybe...
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