From: Mark Gaffney <markgaffney@me.com>

Date: December 24, 2009 11:26:23 AM MST

To: Astro_IIDC@yahoogroups.com

Subject: Re: [Astro_IIDC] Re: Firewire connections...

Hi Milton, 

I`ve found a number of adaptors now none seem to be the recommended 1.5A!   http://www.unibrain.com/Products/p1394/FR400.htm

 The adaptor I already tried with the (native to here) plug says ...Output +6V=2A.. another says 12V+0.8A,  a big one I have on which I`ve removed the 12V plug says 12V=2000mA 24VA & one with an American plug says 9V=17A (16W Max). I also have the variable voltage American one I bought for the Peltier cooler (which is quite permanently attached now- with the 12V plug removed) which says Output 12VDC current DC 2500mA. I guess I could try the second one I mentioned @ 12V+0.8A...

Mark.

On 25/12/2009, at 3:58 AM, Milton Aupperle wrote:

Hi Mark;

Yes, that's what I am trying to get across.

You need to use a 4 pin to 6 pin FW adapter between the Hub and the
Mac, which forces the Hub to power itself. You also need an AC/DC
adapter too for the Hub to power it. Usually they indicate near the
plug what the Adapter will need for input, like 12 volt and xx amps.

HTH..

Milton Aupperle

On 23-Dec-09, at 9:17 PM, Mark Gaffney wrote:

>
>
> Milton, That"s another good idea but the solution I have now with
> the 12 volt power adaptor dosen"t involve any more expendtures of
> money at this stage & appears to be working. Do you mean that the 6
> pin cables are drawing power from the computer"s FW bus & this may
> be detracting from the Firerepeater 400"s operation?
>
> Mark.