[Asterisk-Users] line battery check

[Jon Pounder]

At 05:18 PM 7/8/2003 +0100, you wrote:
>Hi-
>
>Its not clear from your msg whether you want to detect the open-circuit
>condition of  the T1/E1 directly or on one of the analog circuits connected
>on the other side of the channel bank.

the t1 circuit is fine and the channel bank did not alarm during the 
problem (it does have a form c alarm contact)

What I am asking is if anyone knows offhand if the alarm state can be 
triggered on the fxo/fxs ports by reprogramming, or if it only applies to 
the t1. OR is there any way with rbs to detect a line that lost loop power 
? OR is there a way to have asterisk check every few minutes when a line is 
not in use that it can raise a dialtone ? if not then have some other 
process get triggered.


>If directly on the E1/T1, I imagine that asterisk can detect the condition
>of the "alarm" signals for the circuit - these are separate from the
>signalling supervision bits like on/off hook.  I'm new to asterisk, so don't
>know how to read those alarm indicators in the software, but the ones you
>are probably interested in are: "Red Alarm" - means loss of signal (I think
>a cut line would cause this), "Yellow alarm" - means far end detected an
>error, and "BPV" - bi-polar violation, means degraded signal (usually).
>
>Hope this helps.
>
>regards
>
>Scott M. Stingel
>Emerging Voice Technology Inc.
>
>Email:          scott at evtmedia.com <mailto:scott at evtmedia.com>
>URL:            www.evtmedia.com <http://www.evtmedia.com>
>
>
>
> > -----Original Message-----
> > From: asterisk-users-admin at lists.digium.com
> > [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of
> > Jon Pounder
> > Sent: Tuesday, July 08, 2003 4:29 PM
> > To: asterisk-users at lists.digium.com
> > Subject: [Asterisk-Users] line battery check
> >
> >
> > I know in the x100p hardware the driver can sense whether
> > there is battery
> > voltage on the line or not. Is this possible in the zap
> > drivers using t1/e1
> > interfaces ?
> >
> > I believe the signalling bits are only ring and hook, not
> > loop presence, so
> > not sure if it is possible.
> >
> > I had a situation last night where a main cable was cut in
> > the area and
> > lines were down overnight. My burglar alarm knew right away
> > there was no
> > line battery and started beeping. Data T1 down was a
> > no-brainer for the
> > monitoring software to detect. Now I am looking for a way to
> > detect loop
> > loss on the voice lines - any ideas how to accomplish with asterisk ?
> >
> > I have a zhone bank - anyone know offhand if I can program
> > loop loss on a
> > port to put it into an alarm state ? At least then I would
> > have a contact
> > closure I could monitor easily.
> >
> > _______________________________________________
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> > Asterisk-Users at lists.digium.com
> > http://lists.digium.com/mailman/listinfo/asterisk-users
> >
> >
>
>
>
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