[Asterisk-Users] Linksys SRW224P POE Switch

[Nicholas Kathmann]

The Cisco IP phones that end in 1, for instance 7941, 7961, 7971, all 
support 802.3af standards, and were built just for that.

Thanks,
Nick

Rich Adamson wrote:
> Tom wrote:
>> At 05:24 AM 6/10/2006, you wrote:
>>> " What will you be powering with it?  I bought one to power Cisco IP
>>> phones but realized that it will not power them before it arrived."
>>>
>>> What obscure cisco phones are you using ?
>>
>> 7960G  - pretty obscure huh?
>>
>>
>>> You may only need a different fly lead if you have older pre 
>>> standard phones
>>> otherwise it should work ok.
>>
>> Pay attention Fadge:  There are many types of POE and at least two 
>> types that use 48v and are somewhat 802.3af compliant.  Older POE 
>> like Cisco take their power over the unused pairs of an ethernet cable.
>>
>> Most of the latest generation POE switches including the Linksys 
>> SRW224P provide their power on the data pairs, not the unused pairs.  
>> So if both the data and the power are on the same pairs, how do you 
>> make a cable adapter to work with the 7960G?
>
> Its my understanding the 7960"G" model is .3af compliant, and the 
> older 7960's are not. I think I read that on one of Cisco's pages, but 
> not sure, and obviously I haven't tested it.
>
> R.