Re: Advice on cheap data cabinets and rackmount switches....

["noel_pilot" <HA@xxxxxxxxxxxxxxxxxx>]

thanks for all the advice everyone.
i have found this...
http://www.netshop.co.uk/productcategorydetail.aspx?categoryid=T347

unfortunately I don't think I can really stretch to that kind of money
so any ideas where I can find any that size for less money or even
second hand sources.

those under desk sizes seem to be quite rare!

thanks all.

Noel

--- In ukha_d@xxxxxxx, "Andy Whitfield"
<andywhitfield2002@y...> wrote:
>
> Hi
> Generally speaking the smaller the physical size of the UPS, the
> lower the VA rating.
> To convert VA to Watts, multiply by 0.67.  So 250VA is about
> 170Watts max load.
> I suggest running a UPS at half load or less.
> Running at or near full load means...
> 1) you'll have a very short runtime (from seconds up to about 5
> minutes depending on battery condition).
> 2) you're probably going to shorten the life of the UPS as running
> the electronics at maximum power.
> 3) if your load increases slightly then the UPS will shutdown
> because of overload.
>
> You could look inside your broken UPS but remember it is the SAME as
> working on live mains (when the batteries are connected)!!
> If you do open it, take extreme care!  The is enough voltage &
> current to kill.
> It maybe your batteries are dead or it could be an electronic
> fault.  Generally parts won't be interchangeable between models of
> different VA ratings.
>
> I've got a black APC Powerstack 450va 1U batteries have about half
> runtime.  Also got some new batteries for Powerstack.
> In 2U I've only got beige Compaq R1500h.
> I have black 3U APC Smart 2200 & 3000va
>
> Regards
> Andy

<SNIP>