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On Aug 25, 2015 12:55 PM, <mesh-request(a)lists.sudoroom.org> wrote:
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> Today's Topics:
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> 1. Re: [sudo-discuss] Can someone please donate Cat6 Shielded
> cable? (danarauz(a)gmail.com)
> 2. Re: [sudo-discuss] Can someone please donate Cat6 Shielded
> cable? (danarauz(a)gmail.com)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 25 Aug 2015 12:43:44 -0700
> From: "danarauz(a)gmail.com" <danarauz(a)gmail.com>
> To: max b <maxb.personal(a)gmail.com>
> Cc: sudo-discuss <sudo-discuss(a)lists.sudoroom.org>,
> "mesh(a)lists.sudoroom.org" <mesh(a)lists.sudoroom.org>, Charley
> Sheets
> <rcsheets(a)acm.org>
> Subject: Re: [Mesh] [sudo-discuss] Can someone please donate Cat6
> Shielded cable?
> Message-ID:
> <CAPMS6zb2ApzqNP3jmAy-zd0pm0eN4yum16F883DibLzL3=
> UvSg(a)mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hey Charley,
>
>
> Many thanks for stepping forward, and about answering your valid questions.
>
> Actually Max pretty much answered the questions.
> But, I would like to add that the small room where the phone line enters
> the building has a lot of electrical cables on the ceiling and many of them
> go along in part of the path that leads to CCL-Sudoroom area.
>
> Question two, Termination:
>
> I totally understand your point about terminating cables properly.
>
> For example, Cat6A with Cat6A connectors + Cat6A Patch Panels; Shielded
> with Shielded; etc.. I brought that up when I was working on the
> Netwoork/Reboot (
> https://sudoroom.org/wiki/Network/Reboot#Wishlist_.28in_progress.29) plan.
>
> Anyhow, like Marx mentioned, this line that we are trying to run at Omni is
> a phone line, so it will terminate to a small box by the two post rack,
> close to the wall. We will be using just a punch down tool.
>
> Max, thanks for answering these questions. The only thing I would like to
> mention is that we want to stay away from CAT5, if the case is that we
> cannot have CAT6 or CAT6A type, then the minimum should be CAT5e (e for
> enhanced). (
>
> http://midwesttelephone.com/wp-content/uploads/2015/02/Speed-comparrison2.j…
> )
>
> Thanks!
>
> Daniel
>
> On Tue, Aug 25, 2015 at 1:38 AM, max b <maxb.personal(a)gmail.com> wrote:
>
> > Hey Charley,
> >
> > You're more than welcome to donate money (or time) if that's more up your
> > alley. Also, if you want to donate UTP cat6, we'll take that as well. We
> > use a bunch of ethernet cable both at the omni and for other
> installations,
> > so we can always use more. If you're feeling really generous, we can
> really
> > use shielded outdoor cat5 and cat6 for installing antennas. Don't worry -
> > no matter what kind of ethernet cabling you feel like donating, we can
> > almost certainly find a use for it :)
> >
> > As for the questions you've outlined:
> >
> > First thing: shielded cable
> >
> > This isn't actually an ethernet run. It's dsl lines + phone lines running
> > over cat copper wires. As such, it's my understanding that it's more
> > sensitive to EMI disturbance. Additionally, it's much better to err on
> the
> > safe side as we'll only want to string this once and the entire network
> > communications infrastructure depends on the dsl signal that passes
> through
> > this line. As for needing shielded mating jacks, we have plenty of
> grounded
> > rj-45 connectors and with whatever other scenarios, it's pretty easy to
> > ensure that they're grounded. We're not talking about our entire network
> > infrastructure, we're just talking about this one cable run.
> >
> > Second thing: hand termination
> >
> > We're using an EZ RJ-45 crimper, which makes the process fairly
> > straightforward. We have spools of other types of ethernet cables and
> have
> > done runs throughout the building. Also - we'll be breaking out these
> pairs
> > anyhow, so most of this is fairly non standard types of termination which
> > are much easier than rj-45 disconnects.
> >
> >
> > Daniel, let us know if I missed anything here?
> >
> >
> > Max
> >
> > On Tue, Aug 25, 2015 at 2:01 AM, Charley Sheets <rcsheets(a)acm.org>
> wrote:
> >
> >> Hey Daniel,
> >>
> >> I am interested in helping out, but I have to admit I'm fairly
> >> skeptical of two elements of this request, so I'd like to get some
> >> clarification if possible.
> >>
> >> First thing: shielded cable. My understanding is that most of the noise
> >> rejection comes from the twists, not the shielding, and that shielded
> >> cable is only useful in high-EMI environments. Am I mistaken about the
> >> application, or are we perhaps in a high-EMI environment? The standard
> >> example of high EMI is something like a factory floor. Shielding also
> >> only works as intended if the mating connectors (jacks and whatnot) are
> >> also shielded. Does that apply here? My inclination is to donate
> >> standard (UTP) cat6 cable. Please help me understand why I should
> >> donate shielded cable instead.
> >>
> >> Here is some information (could be biased -- it's from a cable
> >> supplier) about the differences as they apply to cat6a:
> >> http://mirapath.com/blog/item/cat6a-shielded-or-unshielded
> >>
> >> Second thing: hand termination. You've stated a preference for a box of
> >> several hundred feet of cable. To me that implies that you'd prefer to
> >> hand terminate the cable rather than having pre-terminated cables. I
> >> certainly won't make any claims about your personal ability to
> >> terminate cables, but most people are not especially skilled at this,
> >> and many hand terminated cables I've seen in the field are visibly not
> >> well made. I've terminated cat5 and cat5e cable, and it's always been
> >> very fiddly and challenging for me to minimize the untwisted distance,
> >> and to ensure there are no open pins. Pre-terminated cable is
> >> available with strain relief boots and is often certified to be
> >> complaint with the relevant cabling standard. What do you see as the
> >> advantage of spools of cable? Why not buy pre-terminated cable?
> >>
> >> I hope this doesn't come across as overly critical. Sorry if it does. I
> >> really just want to make sure we get exactly what we need.
> >> --
> >> Charley Sheets
> >>
> >> _______________________________________________
> >> sudo-discuss mailing list
> >> sudo-discuss(a)lists.sudoroom.org
> >> https://sudoroom.org/lists/listinfo/sudo-discuss
> >>
> >>
> >
>
>
> --
>
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> - - - - - - - - - - - -
> Help open a people-powered common space in Oakland, California!
> https://omnicommons.org/donate
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
> - - - - - - - - - - - -
>
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Hello Sudoers-Meshers:
We are having Omni work parties for the last three Saturdays, and we have
postpone the wiring run from the point of entry to the Server area, only
because we don't have the cable. This line brings the phone+Internet to the
omni itself.
Guestimating the run is about 70' long.
But, if we can get a box of 500' or 1000' would be awesome, so that the
rest can be used by the Sudomesh projects as well.
Can someone help us out? If we get it by Saturday, I volunteer myself to …
[View More]do
this job on Saturday as part of the work party.
Many thanks in advance,
Daniel
--
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - -
Help open a people-powered common space in Oakland, California!
https://omnicommons.org/donate
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - -
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I won't be able to make it and I know Max and Alex aren't coming.
If someone else wants to still have it you should speak up and un-cancel it!
--
marc/juul
Just wanted to announce that my new home in west oakland, a collective
house with six inhabitants, is now the first house to receive 100% of its
internet connectivity through the People's Open Network!
This was accomplished using the sudo mesh 0.2 firmware which is currently
in alpha testing!
Thanks to everyone who participated, especially Pete Forsyth for being node
0 in this 0.2 mesh and for being so patient during extended debugging
sessions!
--
marc/juul
Hello Humans!
Lets get Omni open to the public. Please help to get the building ready.
No skills? No worries!
Last week I was thought how to help. It was a fun and rewarding experience.
Food+Drinks included. :)
Join us!
daniel
---------- Forwarded message ----------
From: "Sarah Grant" <lists(a)chootka.com>
Date: Aug 7, 2015 1:51 PM
Subject: [Battlemesh] Radical Networks Conference NYC - Call for Proposals
To: <battlemesh(a)ml.ninux.org>
Cc:
I would like to announce Radical Networks, a 2-day conference taking
place the weekend of 10/24-25 in NYC at NYU Poly in partnership with
Eyebeam (http://eyebeam.org/)!
Join us for two days of speakers, panels and workshops designed to
introduce the community to DIY …
[View More]networking. The conference will feature
talks and hands-on workshops that will take a critical look at wireless
networks and discuss the future of
alternative DIY networking.
The conference will be organized around the following questions and ideas:
*GOALS*
To understand how the technology can be used as a method of control and
how to subvert that.
Teach people how to use networking technology for themselves.
Encourage creative and social exploration with computer networks.
*IDEALS*
Promoting free and open networks built with free and open hardware and
software.
Decentralizing the control of where networks exist and what and whom are
served by them.
Maintaining control of our own content, hardware, and means of deployment.
Community and free expression first.
*QUESTIONS*
What would you do with your own network?
Why does it matter to understand how networks work?
Why do community networks matter?
How could free, open local networks benefit people?
What can networks be used for other than social networking and
commercial use?
This conference is for the community! Educators, artists, technologist,
students, and anyone interested in learning about how networks work are
invited to attend. http://radicalnetworks.org
If you would like to participate, the call for proposals is open and due
8/10/15, although we will most likely extend this deadline to 8/15.
Please submit if you would like to give a talk, hold a
panel discussion, demo some work, or teach a workshop. For more
information on how to submit, follow this link:
http://radicalnetworks.org/participate/
More information will be posted to the site, including a schedule and
confirmed speakers over the next few weeks.
Thanks!
Sarah
@woolypixel
@RadNetworks
_______________________________________________
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