[sudo-sys] Slow internet

[Marc Juul]

On Wed, Aug 5, 2015 at 12:40 AM, Charley Sheets <rcsheets at acm.org> wrote:

> On Tue, 4 Aug 2015 17:36:55 -0700
> Marc Juul <juul at labitat.dk> wrote:
>
> > I ordered another 1000' roll of cat5e outdoor shielded cable which
> > should arrive on Friday. Daniel talked about re-running this on
> > Saturday so I will try to ensure that it is at sudo room before
> > Saturday morning. It's probably a good idea to ground this cable at
> > both ends. I like to ground stuff by making a three-prong AC plug
> > that only has the ground wire (though I know that's not the
> > "professional" way of doing things).
>
> How confident are we in the ground at each end of the run? Is the
> existing cabling shielded and grounded at both ends? If we're going to
> ground both ends of the run, let's make sure we're not making a
> significant ground loop.
>
> I don't know nearly enough about the electrical service at Omni to have
> an opinion on whether a ground loop is likely, and I'm definitely not a
> pro at this kind of thing, but I think if you stop just short of
> hooking it up and measure the current through the drain wire, as long
> as it's reasonably low you're in good shape.
>
> I don't do a lot with shielded twisted pair though, so if I'm confused,
> please correct me. :)
>

No you're right. We need to ensure we're not doing something stupid here
and I don't know anything about the grounding at Omni. If someone else runs
the cable and leaves the ground wire dangling then I'll take care of
grounding (or not) as needed.

-- 
marc/juul
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