[MLB-WIRELESS] WRT54G Bulk Buy - cheaper again!

[Paul Jones]

----- Original Message ----- 
From: "Matt Boyd" <matthew.c.boyd at uts.edu.au>
To: <nick.sibbing at arts.monash.edu.au>
Cc: <melbwireless at wireless.org.au>
Sent: Wednesday, June 23, 2004 6:07 PM
Subject: Re: [MLB-WIRELESS] WRT54G Bulk Buy - cheaper again!


>
> > Tony
> > I think the best form of PoE is not to bother. Just use PoW (Power over
> > Wire a standard I'm jointly developing with Michael Borthwick)
> >
> > I just purchased 20m of the heaviest 2core flex I could afford at Jaycar
> > approx $25 and just cut the wire for the original power supply and
> > extended it with the flex and connectors. Even the 4.5 v DLink worked
> > fine over it. The minitars and WRT54Gs that run at 12v would be even
> > easier. Cheap and easy.
> >
> > In fact that returns me to one of my original questions. Could 3 12v APs
> > run off 2 power supplies to avoid me having to do any more cabling?
>
> I'm not Mr. electric, but.. I think you just need to work out how many
> amps each of the APs draws make sure that the power supply can supply 3x
> that at 12v. eg if each AP draws 0.5amps then you need a power supply
> that does 1.5 amps and 12 volts. I would lean towards a single power
> supply with higher amps rather than 2 put together in some sort of
> series, I'm not sure how well that would work and wouldn't want to try
> it. But.. there's probably someone on the list with a better idea than
> me.

1) If it runs on AC you can forget about using more than 1 power supply.

2) DC Supplies in PARALLEL will add CURRENT
   DC Supplies in  SERIES  will add VOLTAGE

Good luck!


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