[kwlug-disc] Recommendations on ethernet cable tool sets, kits?

[William Park]

Ok, I get it now.  Cut the plug with broken-clip, attach Keystone jack,
and extend it with short patch cable.
-- 
William Park <opengeometry at yahoo.ca>

On Mon, Jan 29, 2018 at 03:54:14PM -0500, Cedric Puddy wrote:
> Hi William!
> 
> I would either put a keystone jack on the end of that cable, and use a
> patch cable (always seems to be lots of 1' patch cables around anyway), or
> just toss it.  When most fresh patch cables are between $1.20 - $5.00, how
> long do you need to spend debugging, before you would have been better of
> just going with a cable that was a sure bet?  In the personal world,
> perhaps.... but if it were for a client, I would feel compelled to credit
> back any time I spent on something like that, and it the cost of labour
> would probably exceed the value of the patch cable within the first minute
> or two.
> 
> I'm not sure where all the "dead" cables might be coming from, unless you
> are talking about just "cables with broken clips" -- but that doesn't
> change the observation that installing male RJ45 ends is dodgy.  Also, if
> putting fresh male RJ45 ends on, be sure that you are doing it into
> stranded cable; solid conductor cable (what you generally use in walls)
> isn't intended for male RJ45 ends (the little spike that is supposed to bed
> down in to the cable strands can instead just slide around the round solid
> conductor, giving you a weak/inconsistent electrical connection, and it can
> be very had to visually see that it's not right, and it will usually pass
> continuity tests, but will then cost you days or weeks of frustration when
> you try to use it for actual data communications, and lead you to believe
> you have a dodgy switch, NIC, router, internet feed, etc.).
> 
> Some of cable guys I work with, especially when installing CAT6, most
> especially for longer runs, are quite concerned if the cable gets run over
> or people even walk on it at the job site; I think that's going a bit far
> for the most part, but it does remind us that the rate of twist, the exact
> relationship of the conductors inside that jacket is of utmost importance
> to the signal integrity of the cable (the helical twist, combined with
> differential signalling, gives the cable it's ability to reject external
> electromagnetic noise; if you crunch on the cable, or torque it such that
> the relationship between the conductor changes, then it's ability reject
> noise drops).
> 
> As far as "show and tell" goes - this is a picture showing the crucial bits
> of wiring a keystone jack: https://goo.gl/images/zh6Mfw
> 
> For that matter, youtube has lots of videos, I would wager (have not
> looked, but ... they've got everything else!)
> 
> Arrange the conductors by colour (the cabling industry tenders it's apology
> to colour blind people, as always) on the jack, maintaining the twist to as
> close as possible to the connection point, punch it down, continuity test,
> and enjoy!
> 
>   All the Best,
>   -Cedric
> 
> 
> On 29 January 2018 at 14:40, William Park via kwlug-disc <
> kwlug-disc at kwlug.org> wrote:
> 
> > On Mon, Jan 29, 2018 at 09:42:17AM -0500, Cedric Puddy wrote:
> > > 2) IF YOU ARE CRIMPING MALE RJ45 ENDS ON A CABLE, YOU ARE DOING IT WONG
> > AND
> > > SHOULD JUST STOP.  INSTALL KEYSTONE JACKS AT ALL TIMES.
> >
> > Keystone Jack is the female side of things.  What do you do if clip on
> > the male plug breaks off?  We got boxes full of "dead" cables.  Nothing
> > really wrong with the wires, just the clip is gone.
> >
> > Can you do "show and tell" on this topic?  I have to see how they work.
> > Email doesn't really work for me.
> > --
> > William Park <opengeometry at yahoo.ca>
> >
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