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Topic: External power supply pins. (Read 464 times) previous topic - next topic


Hi folks.

Maybe a silly question but here goes:

My freetronics Etherten card.

The display I have just now says it doesn't work with the USB voltage and needs external power.

Terrific.  The main board has a 2.1mm socket but nowhere does it say which is the + and -.

I'm guessing centre + but you know what thought did.

I don't want to plug it in and watch all the magic smoke escape.


James C4S

The schematic shows it is center-pin positive (pg 2).

Of course, since this is a Freetronics board, maybe you should ask in their support forums?
Capacitor Expert By Day, Enginerd by night.  ||  Personal Blog: www.baldengineer.com  || Electronics Tutorials for Beginners:  www.addohms.com


Thanks James.

I was trying to navigate their site and was getting lost and confused (hmmmm.....) with the layout and how it kept looping back to pages I had been.

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