Higher can't hurt especially with a square wave.
On Thu, 04 Dec 2003 13:07:32 -0500 "Bob [EMAIL PROTECTED]" <[EMAIL PROTECTED]>
writes:
> Good point. I'd probably do something a little higher, like 2-4uF.
> They provide I believe 48v, and
> the ringing voltage is simply flipping the 48v back and forth in
> polarity at 25hz, so it's a little
> weak, but it works. Pretty neat, when you realize they are
> switching this up from the 5v power supply.
>
> Bob
>
> chris Snyder wrote:
> > A diode bridged with a 1 Uf. 400 volt capacitor ( so as to pass
> the AC
> > ring voltage).
> > Otherwise you will lose ringing from the unit.
> >
> > How many volts is the DC loop on this unit?
> >
> > On Wed, 03 Dec 2003 21:47:52 -0500 "Bob [EMAIL PROTECTED]"
> <[EMAIL PROTECTED]>
> > writes:
> >
> >>...Because you can tell the ATA to reverse polarity when the
> callee
> >>hangs up, and do your drop of
> >>loop current by simply inserting a diode in the path. The issue I
>
> >>contacted Cisco about is exactly
> >>for this purpose, and it won't work exactly out of the box as it
> >>should. Hopefully this latest
> >>firmware update will correct this, so you can get it to make your
>
> >>KXTD drop connection properly
> >>(bringing the thread back to KXT...heh).
> >>
> >>Bob
> >>
> >>David Lesher wrote:
> >>
> >>>Speaking on Deep Background, the Press Secretary whispered:
> >>>
> >>>
> >>>>Actually, I'm going through some stuff with Cisco right now on
> >>
> >>getting the polarity reversals to be
> >>
> >>>>correct in the ATA186. It currently is very wrong. They are
> >>
> >>getting closer though.
> >>
> >>>
> >>>Where do the demands for reversals come from? The box is
> >>>{allegedly} emulating a CO, and reversals were last seen in
> what,
> >>>Panel/Step offices? I don't recall any with #1XB.
> >>>
> >>>What is needed should be simple. A solid second, 1000ms, of no
> >>>loop current to indicate an abandoned call. Why that time? The
> >>
> >>only
> >>
> >>>references I could find in BSP's was the 1A2's 400D card setting;
> >>>they dropped on a 500ms interuption so I doubled that, to be
> >>
> >>sure.
> >>
> >>>Is there some issue I don't know of re: KXTD's and detecting
> CPC?
> >>>It seems to work for me.
> >>>
> >>>
> >>
> >>
> >>_________________________________________________________________
> >>KX-T Mailing list --- http://kxthelp.com/
> >>Subscription changes: http://kxthelp.com/mailman/listinfo/kxt
> >>
> >>
> >
> >
> >
> > Chris Snyder
> > Advantage Telcom
> > Cosby, Tn.
> > Sevier County's oldest interconnect.
> >
> > ________________________________________________________________
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> >
> > .
> >
>
>
>
Chris Snyder
Advantage Telcom
Cosby, Tn.
Sevier County's oldest interconnect.
________________________________________________________________
The best thing to hit the internet in years - Juno SpeedBand!
Surf the web up to FIVE TIMES FASTER!
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_________________________________________________________________
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