The Powerware units are fairly rugged (They go on ships and don't blow
up when power is disconnected from the port). You can use the sizing
tools on their site. We use three of them at the answering service.
The old one complains about power from the generator now. I'm not sure
what's wrong there. Battery packs can be plugged in for more reserve.
Peter M.
Philip Mullis wrote:
The Netgear FS116P uses a total of 88watts (volts x amps=watts) under maximum
load so to figure out run time on ups use the following equations.
First you need to get a load ratio by divideing the total va / watts
So an 1000va ups 1000va/88watts= 0.088 or rougly 9% load
Now if that ups lasts 10mins (take this from the mfgrs box and always round
down) under full load you would get the max run time looking at the load and
runtime under fully load
So in this case a 1000va would roughly get you 111 minuets (1hr 51mins)
Hope that helps out.
Regards,
Philip Mullis
________________________________________
From: Mike Ashton [mailto:[EMAIL PROTECTED]
Sent: Monday, February 05, 2007 1:04 PM
To: [email protected]
Subject: Re: [on-asterisk] UPS for phones at desktop
Drew,
I use the Ultra 1000kva units from TigerDirect, if you go to their store they
have (had it's been a few weeks since I've been there) them as in store
specials at $68, online their 107. They're hard to beat for the price.
My most heavily loaded one will keep 5 small servers, a router and two modems
running for at least 35 minutes ( haven't test any longer ). So I imagine it
would keep 5 phones and a switch going for quite a while.
Mike
Drew Gibson wrote:
I have to power groups of 5 Aastra 480i phones plus a small PoE switch (Netgear FS116P) for 2-3 hours. There has to be 1 UPS per group due to the office layout.
Has anyone found a low VA/ long battery life UPS at a reasonable price?
What are others using?
regards,
Drew
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
--
Peter L. MacFarlane, ACP
C & P Consulting 2000
Charlottetown PEI
