5 Aug
2015
5 Aug
'15
12:52 a.m.
On Wed, Aug 5, 2015 at 12:40 AM, Charley Sheets <rcsheets(a)acm.org> wrote:
On Tue, 4 Aug 2015 17:36:55 -0700
Marc Juul <juul(a)labitat.dk> wrote:
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
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. :)