[cisco-voip] power supply for ip phone

Thu Apr 10 23:34:53 EDT 2008

I do have some AIR-PWRINJ3 as well.  Could I use those with 7941s and 7911s?

On Thu, Apr 10, 2008 at 7:40 PM, Charles Boening <charlieb at cot.net> wrote:
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>  7940.
>
>  Also, I see there is a newer AIR-PWRINJ3 that's out.  The AIR-PWRINJ2 has been EOL'd.
>
>  My 7970 is only drawing 10.3W with a max of 15.4W.  That's less than the 16W the AIR-PWRINJ2 will offer.
>
>  Here are a couple examples from an actual POE switch.
>
>
>  Power   Device              Class Max
>  (Watts)
>  - ------- ------------------- ----- ----
>  12.2    AIR-AP1131AG-A-K9   3     15.4
>  10.3    IP Phone 7970       3     15.4
>  6.3     IP Phone 7940       n/a   15.4
>
>
>
>  Charlie
>
>
>
>
>
>  > -----Original Message-----
>  > From: Matt Slaga (US) [mailto:Matt.Slaga at us.didata.com]
>  > Sent: Thursday, April 10, 2008 4:43 PM
>  > To: Charles Boening; cisco-voip at puck.nether.net
>  > Subject: RE: [cisco-voip] power supply for ip phone
>  >
>  > Are these 7941s or 7941G-GE?  The power requirements are different.
>  >
>  > -----Original Message-----
>  > From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-
>  > bounces at puck.nether.net] On Behalf Of Charles Boening
>  > Sent: Thursday, April 10, 2008 7:35 PM
>  > To: cisco-voip at puck.nether.net
>  > Subject: Re: [cisco-voip] power supply for ip phone
>  >
>  > -----BEGIN PGP SIGNED MESSAGE-----
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>  > I've done this.  I have some of the injectors (PN:  AIR-PWRINJ2) powering
>  > some 7940 phones without issue.  I've had these in a small office for a
>  > couple years.  They are 48V output at .35A.
>  >
>  > I've used both the POE injector and the power cube plug on 7940 phones.
>  >
>  >
>  > Charlie
>  >
>  >
>  >
>  >
>  > > -----Original Message-----
>  > > From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-
>  > > bounces at puck.nether.net] On Behalf Of Dan Letkeman
>  > > Sent: Thursday, April 10, 2008 3:06 PM
>  > > To: Jorge L. Rodriguez Aguila; cisco-voip at puck.nether.net
>  > > Subject: Re: [cisco-voip] power supply for ip phone
>  > >
>  > > Good point.  Does anyone have this kind of equipment and that can confirm
>  > > this?
>  > >
>  > > Thanks,
>  > > Dan.
>  > >
>  > > On Thu, Apr 10, 2008 at 5:02 PM, Jorge L. Rodriguez Aguila
>  > > <jorge.rodriguez at netxar.com> wrote:
>  > > > Do you plan to use the POE injector or the actual powercube plug.
>  > > Depending on the phone you might not be able to connect the connector
>  > onto
>  > > the phone. Some of the newer phones have kind of a lip around the
>  > Connector
>  > > socket which force you to use Pwr Cube 2 vs Power cube 1 which is
>  > identical
>  > > to the Antenna power connector
>  > > >
>  > > >  Jorge
>  > > >
>  > > >
>  > > >  -----Original Message-----
>  > > >  From: Dan Letkeman [mailto:danletkeman at gmail.com]
>  > > >  Sent: Thursday, April 10, 2008 5:45 PM
>  > > >
>  > > >
>  > > > To: Jorge L. Rodriguez Aguila; cisco-voip at puck.nether.net
>  > > >  Subject: Re: [cisco-voip] power supply for ip phone
>  > > >
>  > > >  I'm looking at powering some 7941's and some 7911's.
>  > > >
>  > > >  The model number on the 1131ag power supply is:
>  > > >
>  > > >  Cisco P/N: 34-1977-04
>  > > >  Model: EADP-18FB B
>  > > >
>  > > >
>  > > >  On Thu, Apr 10, 2008 at 4:02 PM, Jorge L. Rodriguez Aguila
>  > > >  <jorge.rodriguez at netxar.com> wrote:
>  > > >  > The POE from a Wifi Antenna power injector SHOULD power an IP phone
>  > as
>  > > the antennas use more power than most IP phones. What model is the IP
>  > > Phone?
>  > > >  >
>  > > >  >
>  > > >  >  Jorge Rodríguez Aguila
>  > > >  >  CCNA,CCVP,CRMCS
>  > > >  >  Senior Voice/Data Network Consultant
>  > > >  >  Netxar Technologies
>  > > >  >  jorge.rodriguez at netxar.com
>  > > >  >  Office 787-765-0058
>  > > >  >  PCS 787-688-8530
>  > > >  >
>  > > >  >
>  > > >  >
>  > > >  >
>  > > >  >
>  > > >  >
>  > > >  >  -----Original Message-----
>  > > >  >  From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-
>  > > bounces at puck.nether.net] On Behalf Of Dan Letkeman
>  > > >  >  Sent: Thursday, April 10, 2008 4:40 PM
>  > > >  >  To: cisco-voip at puck.nether.net
>  > > >  >  Subject: [cisco-voip] power supply for ip phone
>  > > >  >
>  > > >  >  Hello,
>  > > >  >
>  > > >  >  Does anyone know if the power supply from an 1131ag is the same
>  > power
>  > > >  >  supply that powers an IP phone?
>  > > >  >
>  > > >  >  Thanks,
>  > > >  >  Dan.
>  > > >  >  _______________________________________________
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>  > > >  >
>  > > >
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