Re: [Xylo-SDR] RFC - Powers

["Eric Ellison" <ecellison@comcast.net>]

John

That is another reason I like the ATX 20 Pin Phil suggested, the power
connections on ATX are standard and give us all we need, without confusion,
unless someone wires up a plug with a different power source. Then they just
need to be careful. The 20 pin connector isn't that much larger than the 4
pin job. I'm voting for the 20 pin ATX, no chanct for screwup.

Eric


-----Original Message-----
From: xylo-sdr-bounces@lists.ae5k.us [mailto:xylo-sdr-bounces@lists.ae5k.us]
On Behalf Of John Kolb
Sent: Thursday, January 19, 2006 11:28 AM
To: Xylo-SDR Discussion
Subject: Re: [Xylo-SDR] RFC - Powers


If we are going to use a 4 pin connector with gnd, +5, +/-12V, lets use
something different than the 4 pin standard on PC power supplies to
prevent confusion. Maybe a 5 or 6 pin with 2 or 3 grounds.

John  KK6IL

At 05:01 AM 1/19/2006, you wrote:
>Phil
>
>Yep, we are going to at least have to do 'minor' surgery on any power
supply
>we choose, so we should be able to modify or re-connect one of the 4 pin
>molex connectors to carry the -12.
>
>If we ONLY need the three voltages and ground, then let's go with the 4 pin
>molex, mounted on the MB and protruding through the rear panel. The only
>problem might be the spacers, however the spacers do not have to be too
>long. Neither the spacers or final enclosure length have been defined,
which
>we should do soon. If we 'oversize' the hole in the rear panel a bit. We
>should also be able to mount some LED indicators right beside the molex
>connector which I think Phil mentioned as a 'like to have' and would
>eliminate the need to run wires for LEDS running to the front panel. A
>switch and fuse in this area wouldn't be a bad idea either.
>
>Whether we use a pc supply or not, at least the standard, easily obtainable
>molex is available for powers.
>
>Eric

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