I've actually found they need somewhere around 5watts - so the 24/48
port switch will certainly work.
Only issue we came across was when powering all the phones up
simultaneously (power fail condition) - some of the phones had issues
coming up but were okay once restarted individually. This was for 35x
Aastra 53i's.
Martin
Aloysius Thevarajah Lloyd wrote:
Dave,
Aastra require 2.4 watts.
24 port an 48 port - perfect for Aastra
Thank you
Lloyd
On Thu, Dec 10, 2009 at 5:51 PM, Dave Donovan <[email protected]>wrote:
Hi,
Preamble:
Forgive me if this seems like an RTFM question. I have a pretty straight
forward question that I'm having a hard time finding the answer to.
Perhaps
my Google skills are weak today. I'm hoping that one of you has this
answer
at the top of their head.
I'm planning for my VOIP deployment and I'm looking at the Cisco SRW248G4P
switch. (BTW Some of you might find this chart useful:
http://www.cisco.com/en/US/products/ps9967/prod_models_comparison.html )
I noticed that it supports 48 ports of POE at 7.5 watts and 24 at 15 watts.
I wanted to just double check that my phones don't draw more than 7.5
watts. Unfortunately, I can't find anything in the Aastra docs that say
what wattage is required by any of their phones. All that's in the docs is
that it needs POE.
I've seen some forum posts indicating that the Grandstream 2000 series
draws
about 4 watts. That should be comparable to the Aastra draw but I'd feel
reassured if someone could confirm.
Question:
Does anyone know how much power the Aastra phones require? If you'd like
model number, let's take the 6757i for example since it's one of their
larger ones.
Thanks in advance, I just don't want to end up with a bunch of switches
that
will only power half of my phones.
Dave
