[cisco-voip] FXS Ring Voltage

[Wes Sisk]

Lelio has encountered similar ring voltage limitations before and 
recommended viking line booster:

http://puck.nether.net/pipermail/cisco-voip/2009-May/001194.html

/Wes

On Monday, July 06, 2009 2:44:51 PM, Craig Staffin <craig at staffin.org> 
wrote:
> Hey Mike,
>
> I just wanted to clarify that the standard ring voltage that you 
> should receive from the telco is 90Volts AC.  Not 150 VAC
>
> This is also what Cisco FXS ports output as ring voltage.
>
> Craig
>
>
> On Mon, Jul 6, 2009 at 1:28 PM, Mike Thompson <mthompson729 at gmail.com 
> <mailto:mthompson729 at gmail.com>> wrote:
>
>     Correct, traditionally night ringers connect right onto an FXS port.
>
>     Base line voltage on an FXS is -48 volts DC.  Ring voltage is 150
>     volts AC.
>     When it rings, it will trigger a night ring input (like the input
>     on a bogen
>     amp for example) to play its ring tone over the speakers.
>
>     -----Original Message-----
>     From: cisco-voip-bounces at puck.nether.net
>     <mailto:cisco-voip-bounces at puck.nether.net>
>     [mailto:cisco-voip-bounces at puck.nether.net
>     <mailto:cisco-voip-bounces at puck.nether.net>] On Behalf Of Paul
>     Sent: Monday, July 06, 2009 2:11 PM
>     To: Jack Martin; cisco-voip at puck.nether.net
>     <mailto:cisco-voip at puck.nether.net>
>     Subject: Re: [cisco-voip] FXS Ring Voltage
>
>
>     Sorry. No, I used the FXO for paging. However it sounds like the
>     night bell
>     is supposed to be activated when the phone rings.
>
>     via Wikipedia...
>
>
>     The ringing signal sent to a customer's telephone is AC at 90
>     volts and 20
>     hertz in North America.
>
>     HTH
>
>
>
>
>     ----- Original Message ----
>     From: Jack Martin <jackm at tushaus.com <mailto:jackm at tushaus.com>>
>     To: Paul <asobihoudai at yahoo.com <mailto:asobihoudai at yahoo.com>>;
>     "cisco-voip at puck.nether.net <mailto:cisco-voip at puck.nether.net>"
>     <cisco-voip at puck.nether.net <mailto:cisco-voip at puck.nether.net>>
>     Sent: Monday, July 6, 2009 1:44:11 PM
>     Subject: RE: [cisco-voip] FXS Ring Voltage
>
>     Paul,
>
>     You used an FXO port for the Night Ringer?
>
>     Jack Martin, CCVP
>     Network Engineer
>     Tushaus Computer Services
>     10400 Innovation Drive, Ste 100
>     Milwaukee, WI 53226
>     414.908.2222 Helpdesk
>     414.908.2267 Work
>     414.908.4467 Fax
>     http://www.Tushaus.com
>     http://www.Linkedin.com/in/Jackster
>
>     -----Original Message-----
>     From: Paul [mailto:asobihoudai at yahoo.com
>     <mailto:asobihoudai at yahoo.com>]
>     Sent: Monday, July 06, 2009 12:35 PM
>     To: Jack Martin; cisco-voip at puck.nether.net
>     <mailto:cisco-voip at puck.nether.net>
>     Subject: Re: [cisco-voip] FXS Ring Voltage
>
>
>     If you have an FXO card/port, use that instead. It works like a
>     charm on the
>     PCM 2000...'er it did for me off of a 3825 box with an FXO card on it.
>
>
>
>
>     ________________________________
>     From: Jack Martin <jackm at tushaus.com <mailto:jackm at tushaus.com>>
>     To: "cisco-voip at puck.nether.net
>     <mailto:cisco-voip at puck.nether.net>" <cisco-voip at puck.nether.net
>     <mailto:cisco-voip at puck.nether.net>>
>     Sent: Monday, July 6, 2009 1:24:03 PM
>     Subject: [cisco-voip] FXS Ring Voltage
>
>     I have a customer that wants to connect a FXS port to a Night
>     Ringer on a
>     Bogen PCM2000.  We are seeing the 48V on the circuit but we need
>     90V to
>     trigger the Night Ringer.  Do we use a step-up transformer in this
>     case or
>     does anyone know of a 3rd party solution?
>
>     Thanks for your help.
>
>     Jack Martin, CCVP
>     Network Engineer
>     Tushaus Computer Services
>     10400 Innovation Drive, Ste 100
>     Milwaukee, WI 53226
>     414.908.2222 Helpdesk
>     414.908.2267 Work
>     414.908.4467 Fax
>     http://www.Tushaus.com
>     http://www.Linkedin.com/in/Jackster
>
>
>
>
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