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Should I be worried about 24V current from nearby wires frying my Aimtrak?
1UP:
Thanks for the info. Hmm, maybe I'll just have to see if Mouser has any USB 2.0 cabling with a small diameter. I'm not actually sure if the whole hose is this way, but the metal anchor on the end of the cable is only about 1/8" wide. May be possible to just bore that to a larger size, though it might prove difficult on my drill press...
AndyWarne:
--- Quote from: MonMotha on March 15, 2010, 02:09:06 am ---Oh, don't do that. That may not even work at all for full-speed USB (though low-speed will probably still work as it's pretty forgiving). The transmission line characteristics will be all wrong, and the lines won't be twisted which kills the differential coupling. I still wouldn't expect damage from EMI, though.
--- End quote ---
Agreed.
Note that you need to connect a diode across the coil to prevent large back-EMF spikes from being produced when it de-energises. Otherwise i would expect USB will be affected but not actually damaged.
Andy