[cisco-voip] 7936 power supply on 7912/7940 phones?

[David Sullivan]

On 19 May 2005 at 14:23, Benny Giebens wrote:
> 
> 
> Now my question: Can this power adapter also be used with a 7912/7940
> phone?
> 
> Obviously the reason why is that we don't have to put ll poe switches
> on locations where we only need one phone working if there is a power
> failure. Put this power adapter in the computer room on the ups and it
> should do the trick.
> 
> 
> 
> Anyone already tried  this ?

I've never seen the power blocks that come with 7936 conference 
stations since we don't have one but if you wish to do PoE for single 
phones you can buy 3com single port midspans [1] very cheaply that 
can power 7912s (and 7940s if you are happy making a custom patch 
lead).

We've used these in areas where we only have 1 or 2 phones hanging 
off of one switch with great success and it's a lot nicer than 
powering the phones using the cisco power blocks since you can plug 
the midspan into the same supply/UPS as your switch as you would 
like.

[1] http://shrunk.net/58959ff6-www.3com.com

David.
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