[time-nuts] Re: Wharton/W482 Protocol

[Martin Burnicki]

Dave,

Dave Wilson via time-nuts wrote:
> Hi all,
> 
> is anyone aware of a published definition of the Wharton/W42 timecode
> protocol?
> I'm considering trying to implement an open source master clock for it, to
> help out a friend who has some ex-BBC clocks which use it, but as far as I
> can tell it's entirely proprietary and unpublished.
> 
> Whilst I suspect I can implement something which syncs to NTP and spits out
> W482, reverse engineering the protocol is a whole other thing...

The NTP daemon (ntpd) has a refclock driver for a Wharton clock:
https://www.ntp.org/documentation/4.2.8-series/parsedata/#wharton-400a-series-clock-with-a-4042-serial-interface

Maybe that description helps if you don't find some official specs.

Martin
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