[time-nuts] inexpensive fiber optic distribution

[Hal Murray]

bownes at gmail.com said:
> The infrastructure is easily enough interfaced to, even a simple
> microprocessor can do it, using switches allows for distribution with known
> characteristics. 

It would be interesting to  measure the delays through a switch.

The switches are retiming the data stream.  It has to buffer up enough data 
before it starts sending to make sure that it won't run out before the end of 
packet if the switch clock is fast and the source clock is slow.  There is 
also bit/byte synchronization, and crossing a clock boundary before things get 
started.



-- 
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