[LINK] Broadband

[Chirgwin, Richard]

Another thought is that devices like the DLink access point or the NetComm
DSL modem and so on are probably designed with the physical/environmental
requirements in mind - ie, that their packaging, temperature range and so on
are probably specified assuming that they'll always be turned on, that
they'll suffer unconditioned air, that they don't have fans and so on. A
desktop PC, while still reasonably robust, has a lot more stuff to keep cool
than a DSL modem/firewall...

RC

> -----Original Message-----
> From: bscott at gtlaw.com.au [mailto:bscott at gtlaw.com.au]
> Sent: Tuesday, 29 April 2003 14:28
> To: David Lochrin
> Cc: Craig Sanders; Link; Richard Chirgwin
> Subject: Re: [LINK] Broadband
> 
> 
> 
> I bought a Dlink wireless 713P on the weekend (anyone care to find and
> warchalk me? :). It draws 1.2A @ 12V = 14.4W (according to 
> its data sheet -
> http://www.dlink.com.au/products/wireless/di713p/).  The transformer
> probably adds another 5 or 6 watts in heat, so call it 20 W. 
> Some back of
> the envelope calculations indicate this will cost around $20 
> to run 24/7
> for a year.  Compared with your pentium, which will come out at about
> $150/year.
> 
> You can probably get the power consumption of a computer down 
> by replacing
> the hard drive with extra memory, getting a power saver 
> motherboard that
> will wake at the right time etc, but all of these cost $$$.
> 
> btw wireless is way neat.
> 
> Brendan
> 
> 
> 
>                                                               
>                                                                  
>                       David Lochrin                           
>                                                                  
>                       <dlochrin at dot.net        To:       
> bscott at gtlaw.com.au, Richard Chirgwin                                 
>                       .au>                      
> <Richard.Chirgwin at informa.com.au>, Craig Sanders 
> <cas at taz.net.au>              
>                                                cc:       Link 
> <link at anu.edu.au>                                             
   
>                       29/04/03 12:57 PM        Subject:  Re: 
> [LINK] Broadband                                                  
>                                                               
>                                                                  
>                                                               
>                                                                  
> 
> 
> 
> 
> At 11:19 29-04-2003 +1000, bscott at gtlaw.com.au wrote:
> >If you are going to leave the gateway box on all the time 
> you should check
> >the relative power consumptions of the pc/a dedicated box.
> >For example, 100W difference in power consumption = 2.4 kWh 
> per day at
> >about 12c per kWh (inc GST, NSW domestic tariff) = 28.8c/day 
> = ~$105/year
> 
>    That's a good point - this Pentium has a 145 watt power 
> supply.  I don't
> like having mechanical bits like disks and fans running 
> continuously in a
> domestic environment, either, quite apart from the physical 
> bulk of a PC.
> Since this solution is providing security, the user also 
> needs to be fairly
> expert in configuring and maintaining Linux.
> 
> <snip>
> 
> 
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