Serial port control of an ATX power supply

pjhealy · 2006-10-21T15:50:15+00:00

Hi,It's been 20+ years since I did any kind of circuit design, so I'mstruggling quite a bit with this. Here's what I'm trying to do:I have a server sitting in a remote location (actually a cell block...)that occaisionally hangs. While I'm trying to determine the reason ithangs, I need a way to remotely toggle the power.My thought is to run a piece of CAT 5 from the troublesome server up toa server that is reachable via the Internet. I would connect that CAT5 cable to a spare serial port on the good server. Using the DTR/RTSpins I would come up with a way to raise those pins to high giving meenough power to activate a reed relay located at the far end. Theother side of the reed relay would be connected to the power on circuitof the ATX power supply in the circuit. The relay would be NormallyOpen and when closed would be closed until my code releases it orminimally 10 seconds.I need help identifying the current needs and what components wouldwork; any help would be gratefully appreciated and I'll be happy toshare whatever circuit comes out of this.Thanks!Pat

Oct 21, 2006 20 Replies

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pjhealy 19 years ago

I found this while looking around for a WOL and shutdown option handled through the NIC. The device listed is $140 which is significantly more than I'd be interested in spending. The idea is similar thought...

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Pat

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Serial port control of an ATX power supply

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