[Pool] External device sync / PPS / USB

Anssi Johansson timekeeper at miuku.net
Wed Mar 2 17:00:36 UTC 2011


Daniel Norton kirjoitti:
> As long as we’re on this topic, is it important to distinguish serial
> ports that are connected via an internal (or external) USB bus? Does
> this increase jitter? What if there’s other traffic on the USB bus?

Hi, using USB (either via serial port adapters or otherwise) for time 
synchronization is most probably just a waste of your time and money. 
So, in short, don't do it.

A longer answer to this question can be found from 
http://gpsd.berlios.de/faq.html#time , for example.


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