I had the same problem with aastra 480i On Thu, Dec 10, 2009 at 6:01 PM, Martin Glazer <[email protected]>wrote:
> 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 >>> >>> >>> >> >> >> > -- Thank you Patrick Song Thinking globally, Networking locally CCVP, CCNP, M.Eng in Telecommunications Cell:1-647-868-2950
