From: Hal Murray
Yes, this is right. But watch the polarity. It is easy to get it wrong.
In RS-232 the controls pins are different from the data pins.
The reference implementation of ntpd can accept either polarity.
It's one of the fudge options.
=====================
Although, IIRC from discussions with Dave Hart, the Windows port can only
accept the normal positive-going signal on the DCD line. The devices I've
tested all have positive going signals. Pulse width is typically 100 or 200
milliseconds, with a few receivers giving a much shorter pulse.
Cheers,
David
--
SatSignal Software - Quality software written to your requirements
Web: http://www.satsignal.eu
Email: [email protected]
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