[MLB-WIRELESS] OT product question

emdeex emdeex at gmail.com
Tue Jan 2 14:10:43 EST 2007


I think these iboot units will work for Australia.

http://dataprobe.com/products/power/iboot/ibootac/index.html


On 12/29/06, Shaun Lee Clarke <clarke.shaun.l at edumail.vic.gov.au> wrote:
> If the load is just ELV devices such as 12V or so access points, another
> option would be to switch the DC side of the adapter powering them.
>
> This removes a large amount of cost, complexity, and also solves any
> safety issues with switching 240V.
>
> If you went down this path, a cheap option would be the following:
>
> http://www.jaycar.com.au/productView.asp?ID=KV3595&CATID=&keywords=ip+relay&SPECIAL=&form=KEYWORD&ProdCodeOnly=&Keyword1=&Keyword2=&pageNumber=&priceMin=&priceMax=&SUBCATID=
>
> These devices to the job well if you only want to access it occasionally
>   to forcefully reboot the AP (through the web interface), but I have
> not had much success with the SDK for more advanced functions (like
> integrating it into custom control software).
>
> Another note with these devices, is that they have 2 NO and 2 NC relays,
> but provided the device isn't powered off, you could still use them to
> cut or restore power to the device by setting the NO relays to be 'Off'
> and turn them 'On' when you want the AP off.
>
> And lastly, for some reason, Jaycar doesn't bundle a 5VDC adapter with
> these units, but they do for the very similar IP Sensor board, so make
> sure you get one of those... I made that assumption and was quite
> annoyed when I couldn't even power the unit on.
>
> If you want to give these units a trial, I've got one that I'm not using
> yet that I would be happy to loan for a while.
>
>   *Shaun Lee Clarke*
> *Mobile:* 0433 559 020
>
> *Alternate Mobile:* 0400 211 386
>
> *Strathmore Secondary College*
> Computer Technician
> clarke.shaun.l at edumail.vic.gov.au
> http://www.strathmore.vic.edu.au
> (03) 9379-7999
>
> *Victorian Space Science Education Centre*
> Computer Technician
> shaun.clarke at vssec.vic.edu.au
> http://www.vssec.vic.edu.au
> (03) 9379-3456
>
>
>
> Peter Buncle wrote:
> > It's only for a specific controlled application.
> >
> > (ie repowering a group of ap's with a total load no greater than 200w)
> >
> > And yes a fuse with a 5a rating would be a good idea if outside access
> > is possible.
> >
> > Cheers
> >
> > Peter
> >
> >
> >
> > -----Original Message-----
> > From: Rowan 2006 [mailto:rowan2006 at sensation.net.au]
> > Sent: Wednesday, 27 December 2006 10:22 PM
> > To: melbwireless at wireless.org.au
> > Subject: Re: [MLB-WIRELESS] OT product question
> >
> > On Wed, 27 Dec 2006, Peter Buncle wrote:
> >
> >> I just passed the 5v line thru a board soldered to a plug on the
> >> parallel port which uses a bc548 to buffer & switch a radio parts 2$
> >> 5v relay rated at 240v 5A
> >
> > Call me cautious but if it's a powerboard shouldn't the relay contacts
> > be rated in excess of 10A at 240V? What happens if someone unknowingly
> > plugs a heater or other high current device into it?
> >
> > Cheers.
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> >
> >
>
>
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