[time-nuts] Serial port server .. any interest in a write up on using ?

[David J Taylor]

> I've played with a Lantronix single port server and a Digi 16 port 
> server with no problems for simple COM port emulation.  But I wonder if 
> they would work well with an NTP server.  Has anyone tested that?  Is 
> the network delay a problem due to either amount of delay or variation 
> in the delay?
>
> Ed

I've tried one serial-USB converter for NTP.  The box passed the DCD line, 
which was essential to get the PPS signal through.  Performance was not as 
good as a direct connection, but better than LAN sync alone.  See:

  http://www.satsignal.eu/ntp/NTP-on-Windows-serial-port.html#usb

I haven't tried an Ethernet connected terminal server - I would hope it 
was better than USB, but I don't know.

Cheers,
David
-- 
SatSignal software - quality software written to your requirements
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Email:  david-taylor at blueyonder.co.uk