[cisco-voip] FXS Ring Voltage

[Norton, Mike]

What are you looking for the 90V with? Many basic multimeters will only
do useful AC voltage measurements at 50/60 Hz, with the intention that
it will be used for measuring electrical. The 20 Hz telephone ring won't
show up, or will show up extremely inaccurately, with a lot of basic
multimeters. (And just to check of course, you DO have the meter set for
AC volts, right?) Unless you're using a high-end multimeter or an
oscilloscope, not seeing the ring voltage is not entirely surprising.

 

-- 

Mike Norton

I.T. Support

Peace Wapiti School Division No. 76

Helpdesk: 780-831-3080

Direct: 780-831-3076

 

 

From: Jack Martin [mailto:jackm at tushaus.com] 
Sent: July-06-09 3:08 PM
To: Norton, Mike; cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] FXS Ring Voltage

 

I guess the problem is that I am not seeing the 90V ring voltage??  Yes
I'm calling the port.  I've tested inbound/outbound dialing with a butt
set.

 

The night Ringer on the Bogen PCM2000 is triggered by either 90V on the
tip/ring or contact closure.  I'm not sure what contact closure is so
I'll run with the 90V configuration ;)

 

Craig, either you have some voodoo magic or I have a bad FXS card.

 

Wes, I'll look into the Viking line booster.

 

Thanks all 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

 

From: Norton, Mike [mailto:mikenorton at pwsd76.ab.ca] 
Sent: Monday, July 06, 2009 2:26 PM
To: Jack Martin; cisco-voip at puck.nether.net
Subject: RE: [cisco-voip] FXS Ring Voltage

 

If memory serves, I think the night ringer port on the PCM2000 can be
configured a couple different ways - contact closure, etc. As long as it
is set for regular 90V ring, then you don't need anything special.
Sounds like you already have it set up right, you just forgot to
actually place a call to the FXS port. It's only going to provide ring
voltage when someone's calling it. I like to put the FXS port's DN in a
broadcast hunt group with the reception phones, with time-of-day
partitions to achieve the "night" portion of the night ringer.

 

-- 

Mike Norton

I.T. Support

Peace Wapiti School Division No. 76

Helpdesk: 780-831-3080

Direct: 780-831-3076

 

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Jack Martin
Sent: July-06-09 11:24 AM
To: cisco-voip at puck.nether.net
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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