FreeBSD and controlling an alarm via relay

Achilleas Mantzios achill at
Tue Jul 5 09:33:43 UTC 2011

Στις Tuesday 05 July 2011 11:41:38 γράψατε:
> 2011-07-04 12:39, Achilleas Mantzios skrev:
> > Hello, sorry for the cross-post but i believe this question might seat in both lists.
> > I am the guy who had the done the old 1.23.3 zoneminder port some years ago, and i am thinking of installing/testing
> > the new 1.24.4 port, submitted by bsam at
> > Besides the basic functions, i am thinking of re-using some old techniques by which i controlled
> > the home alarm via a NC/NO circuit (basically it was an enhanced door contact),
> > driven by an old zyXel modem,  which in turn was driven by a small perl program driving the com port, and
> > which was called by a deamon reading zoneminder shared memory info directly.
> > That way i could trigger the alarm system getting into alarm state, whenever zoneminder detected motion,
> > in a fully controlled and programmatic way.
> Is this what you you are looking for

what i am looking for is for a way to control a NO or NC/EOL switch from FreeBSD.
Most probably it must be some kind of relay. I have not used any ever, except
once using a zyXel modem to behave like a relay switch in a N/C contact.

Achilleas Mantzios

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