[Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO

[John Brown (CV)]

On Sun, Nov 16, 2003 at 11:11:06AM -0800, Ed Rubright wrote:
> Excuse my ignorance, but could someone explain what tip and ring is and
> how I ensure/test that it is wired correctly?

In the old days, phone plugs looked like 1/4 phono jacks
There was the TIP of the jack and the RING at the base 
of the jack.  Hence  TIP and RING

The easiest way is to go spend $10 at your local radio shack
and buy a polarity tester.

TIP/RING issues also used to cause speed problems with Pre V.90
modems.  Most modern modems today have auto polarity sense / fix
hardware built in..

John Brown
Chagres Technologies, Inc

> 
> Thanks,
> Ed
> 
> -----Original Message-----
> From: asterisk-users-admin at lists.digium.com
> [mailto:asterisk-users-admin at lists.digium.com] On Behalf Of John Brown
> (CV)
> Sent: Sunday, November 16, 2003 10:54 AM
> To: asterisk-users at lists.digium.com
> Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
> 
> 
> The echo issues are line or PSTN.
> 
> make sure your tip and ring are correctly wired.  Polarity 
> does matter and teh X100P does not do polarity fixing like
> most consumer phones today.
> 
> john brown
> chagres technologies, inc
> http://www.chagres.net/products/voip/
> 
> 
> On Sun, Nov 16, 2003 at 01:35:13PM -0500, Kevin wrote:
> > I do support Asterisk. I have a TDM40B and X100P from Digium, I can't 
> > take the echo on the X100P.
> > 
> > -----Original Message-----
> > From: Jeremy McNamara [mailto:jj at nufone.net]
> > Sent: Sunday, November 16, 2003 1:27 PM
> > To: asterisk-users at lists.digium.com
> > Subject: Re: [Asterisk-Users] FX-200 VOIP PORT CONVERTER FXS to FXO
> > 
> > Kevin wrote:
> > 
> > >Has anyone seen an FXO converter for a Cisco ATA.  There is someone 
> > >selling a device on Ebay that claims to convert a Cisco ATA FXS port 
> > >to an FXO.
> > >
> > >FX-200 VOIP PORT CONVERTER FXS to FXO
> > >
> > >http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=3057281388
> > >  
> > >
> > 
> > Don't bother. Support Asterisk and pick up a X100P from Digium. You 
> > will
> > 
> > have more hair and less stress.
> > 
> > 
> > Jeremy
> > 
> > 
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> > 
> > 
> > 
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