[ntp:questions] NTP sever on an isolated Network

David J Taylor david-taylor at blueyonder.neither-this-bit.nor-this.co.uk
Tue Jan 13 07:35:07 UTC 2009


Diego Ramos wrote:
> My Boss is going to buy the 3 Garmin models, so we can run tests and
> define which one is the best solution for the company.
>
> I told him I'll try to make the boards. :-)

Diego,

This is my simple system - if it helps:

  http://www.satsignal.eu/ntp/FreeBSD-GPS-PPS.htm

I made a small box so that I could see the PPS signal flashing.

You should be able to get 5V from a USB cable - just cut off the connector 
and use the black (0V) and red (+5V) cables.  There is plenty of power for 
a GPS 18 LVC.  More information is here:

  http://pinouts.ru/Slots/USB_pinout.shtml

  http://www.interfacebus.com/Design_Connector_USB.html#b

Cheers,
David 




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