[Asterisk-Users] Where to get 48 volt Power Supplies for Cisco IP Phones

[Greg Boehnlein]

On Wed, 12 May 2004, Tom wrote:

> At 07:04 AM 5/12/2004, you wrote:
> 
> >Hi,
> >I picked up some Cisco IP phones 7940, however, was foolish to not catch the
> >fact that they do not come with power supplies..  Cisco power supplies for
> >them are  $150 (Can you believe it..) or more from a retailer I know.  I
> >found one place that sold compatible ones for $15 aus but with a 8 week turn
> >around..
> >
> >Can anyone point me in the direction where I can do some Mail Order of
> >48volt power supplies (240 AC in Australia)
> 
> I would not buy the Cisco supply.  I use the 3com 3cnjpse on most of our 
> Cisco 7940g and 7960g phones.  They are available in the US for less than 
> $20 each.  You need a custom wired Cat 5 cable (easy) from the power 
> injector to the phone but this allows one less cord plugged into the back 
> of the phone cluttering your desktop.

http://www.voip-info.org/wiki-Cisco+POE

That is a link to the instructions for making your own POE injector cable 
to use a standard 48v POE injector with a 79xx phone.

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