-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On 2015-06-14 16:47, Anton Aylward wrote:
I'd advise putting it on a separate dedicated surge protector power bar.
Mmmm...
I can't see a printer needing to be on the UPS. It might take out the UPS and take the computer/storage down!
Yes.
I have my printer on a completely separate power circuit. Separate wiring from the house's main switch pane; separate fuse/trip. The surge protector has nothing else connected.
I have seen problems with this. If the "ground" is not at the same voltage on both sides (and I have seen this happen), when connecting the data cables (network, usb, parallel port, whatever) there can be issues. There can be errors, like a 1 or a 0 not being read correctly because the ground is not zero. I have seen connecting the printer parallel port to a computer, and one of them having a faulty ground, to cause sparks. Yep, little sparks, that were enough to fry the port circuitry on the motherboard (we had to locate and buy a port card) Thus I connect everything in my computer rack to the same exact house cable, the same surge protector. No issues at all, it is within the ratings. But not on the UPS. The UPS complains because the load (specially at the start) is more that what the battery can supply, even on a big UPS. Some UPS have a different socket for the printer: it is not backed by the battery, but both are on the same circuit, to avoid problem with grounding. It was a known issue, specially with parallel ports; not so much with twisted pair ethernet, it seems. I think it was an issue with coax ethernet, though. - -- Cheers / Saludos, Carlos E. R. (from 13.1 x86_64 "Bottle" (Minas Tirith)) -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iF4EAREIAAYFAlV987sACgkQja8UbcUWM1ymQwD+MFXA9JROeQvDKQ5gbVryuY4s 20V4nhX7X1hj7gd7sdAA/36tb2jPTVaPmfi4QtbjOngib4velWKlfCjvgoKWUQXg =7TLa -----END PGP SIGNATURE----- -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org