Softing 228070, Руководство пользователя

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different twisted pairs are connected to
a set of pins that are supposed to be
connected to a real pair of wires. The
fault usually happens when the same
wires are swapped on both sides of the
link. (eg., Pins 3 & 5 are swapped on
both sides of the link.)
S/UTP : Cable with an overall braid
screen (S) with unscreened UTP. Also
known as STP.
STP : See S/UTP.
S/FTP : Cable with an overall braid
screen (S) with FTP. The “shield”
underneath the jacket is a braid, and
each individual pair is surrounded by its
own foil barrier. The additional foil on
the individual pairs limit the amount of
crosstalk between them. Also known as
S-STP.
SF/UTP : Cable with both an overall
braid screen (S) and foil shield (S) with
UTP. The overall braided screen is very
effective at protecting EMI from
entering or exiting the cable. Also
known as S-FTP.
Straight Through Cable : Cable used to
connect computers to hubs or switches.
A straight through cable has the
following A-to-B ends pin-outs: 1-1, 2-2,
3-3, 4-4, 5-5, 6-6, 7-7, 8-8.
T568A/B : T568A and T568B are two
color codes approved by ANSI/TIA/EIA
that are used for wiring eight-position
RJ45 plugs.
TIA : Acronym for Telecommunications
Industry Association. Generally
referring to TIA-568 Standards for
telecommunication products and
services.
TIA-606-A : The guidelines and choices
of classes of administration for
maintaining telecommunications
infrastructure as defined by the TIA
Standards.
Unshielded : Generally referring to an
electrical cable or connector that are
not enclosed in or by conductive layers.
U/FTP : Cable without overall shielding
or braid (U) with FTP. Commonly used
in 10GBaseT applications.
UTP : Acronym for Unscreened Twisted
Pairs. See U/UTP.
U/UTP : Cable without shielded with
UTP. Also known as UTP.
Wiremap : The parameter that checks
the correct termination of cable wires
in telecommunication outlets and patch