[Tfug] Cable test fail

Bexley Hall bexley401 at yahoo.com
Tue Jan 14 18:44:32 MST 2014


Hi,

Today, I was handed what appeared to be a brand spanking new
CAT5 cable... that didn't work.  (replaced with a *used* cable
that worked well  :> )

I later put the cable on an old Navitek tester to run a cable
test.  Normally, the display lists the cable pins (12345678)
with the same pins repeated, in order, beneath -- accompanied
by a message "Cable OK" (which is usually the case unless I've
built a crappy cable!  Note this cable was prefabbed).

This cable highlighted pins 3456 (in the second line of text)
and indicated "Split 3645".

Nearest I can guess, this is claiming that the cable is just a
straight through cable (like a regular patch cord) but one in
which the pairs are *not* split as intended.  I.e.,
   1+2
   3+4
   5+6
   7+8
instead of:
   1+2
   3+6
   4+5
   7+8
Said even more explicitly:
   Or/Wht
   Or
   Bl/Wht
   Bl
   Gr/Wht
   Gr
   Br/Wht
   Br
(on both ends) instead of:
   Or/Wht
   Or
   Gr/Wht
   Bl
   Bl/Wht
   Gr
   Br/Wht
   Br

Aside from the normal labeling that is present on "bulk cable",
there are no other markings (i.e., the "wire" used to make the
cable is CAT5e).  It just appears to be wired "wrong".

Any idea what this may have been intended for?  I'd like NOT
to discard it (as it is in pristine condition) *but* I want
to ensure it is labeled in such a way that no one else is
"tricked" into thinking it is a legitimate patch cord.
(obvously, someone thought it *looked* like a patch cord
and, so, placed it with the other similar looking cords!)
Ideally, labeling it with its intended purpose!  (hopefully
someone has been similarly tricked, before)

Thx!
--don



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