Re: [CAD_CAM_EDM_DRO] computer power supply

In a message dated 4/2/2003 5:53:52 PM Central Standard Time, pcfw@...
writes:

> I need to connect to the +5V and ground of the computer power supply.
> I have connected the +5V to the red wire and am going to connect the
> ground to the black wire. As I don't want to create smoke , before I
> do that, I hope someone can confirm that the black wire is the ground.
>

It GENERALLY is, but if the assembly-station of your PC was in Basrah,
perhaps not! Haven't you a DC volmeter, preferably a DVM??? ALWAYS connect
the BLACK first, then check polarities and voltages, and, if the red IS +5,
then connect it after turning power OFF. It will NOT hurt the voltmeter if
your have the voltmeter connected to -5 or even +12, as long as you don't
leave it connected long. That can save some expensive equipment! Spock will
tell you, "It's only logical ! ! !"


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