Re: Telephone : Checking for "RTS"
- From: "R.Wieser" <address@xxxxxxxxxxxxx>
- Date: Mon, 17 Apr 2006 10:59:19 +0200
Ken Taylor <ken@xxxxxxx> schreef in berichtnieuws
Sjo0g.13405$JZ1.537275@xxxxxxxxxxxxxxxxxx
Hello Ken,
A telco isolation transformer at the input would solve your
isolation requirements.
Yes, but it would allso block any direct-current or voltage, which is, I
think, needed by the chip for the reversion detection.
Although, it could just detect the voltage-spikes that are, on the other
side of the trafo, the result of that line-reversal. Alas, dependability
of the "has reversed" -signal would than be a bit questionable, as only the
change-spike can be detected (no "if this volrage holds for at least
....mSec" -check can be performed).
.... it also points toward other chips of its 'genre' which act
similarly. There are other telephone IC manufacturers about
so it's a matter of Googling the right keywords.
Yep, that is what I did (did not find anything yet though).
Regards,
Rudy Wieser
.
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- Re: Telephone : Checking for "RTS"
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