[ntp:questions] Proposed NTP solution for a network
bmwjason at bmwlt.com
Wed Mar 4 01:24:54 UTC 2009
David Woolley wrote:
> Richard B. Gilbert wrote:
>> A very poor configuration if accuracy is wanted. Typically, one
>> "edge", leading or trailing, of the PPS output is within 50 to 100
>> nanoseconds of the "top of the second"! The serial output tells you
>> the time value of the PPS "edge".
> As I read it, the PPS was a red herring. I think the appliances are
> ethernet appliances, so any notional serial link from the reference
> clock is purely internal. The appliances probably do use PPS.
The appliance does indeed have a high-quality receiver, and has NTP on
Ethernet output, as well as PPS (DE-9 connector) and 10Mhz on BNC (coax)
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