Glossary
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59
Glossary
AC Wire Map
: Feature in WireXpert
that enables test runs measurements
with Power over Ethernet (PoE)
midspan devices in between. WireXpert
supports cable runs with IEEE 802.3 af
and 802.3 at injectors. Recommended
to disable when not performing a test
through a PoE device.
ACRF
: Acronym for Attenuation to
Crosstalk Ratio Far-end, formally known
as Equal Level Far End Crosstalk
(ELFEXT), is a calculated parameter,
derived from subtracting the
attenuation of the disturber at the far
end pair from the FEXT on the
disturbed pair. This is expressed in dB.
ACRN
: Acronym for Attenuation to
Crosstalk Ratio Near-end, formally
known as ACR, is a calculated
parameter, derived from subtracting
the attenuation of the disturber pair
from the NEXT on the disturbed pair.
This is expressed in dB. Test parameter
is not required for TIA cabling
standards.
Adapter
: The modular test probe used
with WireXpert when used in this
Manual’s context, unless otherwise
stated.
CAT
: Abbreviation for “Category”,
describes the transmission
performance and construction of
copper cabling links associated with
ANSI/TIA-568 Standards.
Channel
: Definition of cabling elements
in horizontal cabling, permanently
installed data cable including patch
cords/jumpers at each end.
Class
: Describes the transmission
performance and construction of
copper cabling links associated with
ISO/IEC 11801 Standards.
Crosstalk
: Disturbance caused by the
electric or magnetic fields along a cable
pair. It can occur when removing too
much of the pair shield or untwisting
pairs too much during termination,
using the wrong components, selecting
wrong settings or using inferior quality
test setups.
Crossover Cable
: Cable used to connect
two devices of the same type, e.g., two
computers or two switches. A crossover
cable has the following A-to-B ends pin-
outs: 1-3, 2-6, 3-1, 4-7, 5-8, 6-2, 7-4, 8-
5.
dB
: Acronym for decibel, is the ratio
unit used to measure the power level
of an electrical signal by comparing it
with a given level on a logarithmic
scale.
DCS
: Acronym for Dual Control System,
is a unique feature of WireXpert
that
provides real-time graphical test data
on both the LOCAL and REMOTE units.
Delay Skew
: Refers to test used to
determine the difference in
propagation delay between the fastest
and slowest set of wire pairs. In
general, the lower the skew value, the
better.
Device
: Refers to WireXpert unit in this
Manual’s context, unless otherwise
stated.
E2E
: Acronym for End-to-End. Generally
referring to End-to-End links.
Application that requires direct
connection to machines or machines to
network devices in the industrial
environment, potentially containing 1
or multiple segments with 2 or multiple
connections in the link.
EULA
: Acronym for End User License
Agreement. Starting from v7.3, user
will require to read and agree to the
terms and conditions stipulated by
Softing before proceeding to use
WireXpert and eXport PC firmware.
eXport
: Project management PC
software to seamlessly work with
WireXpert. Required to upgrade device
firmware. Not to be confused with
actions “file export”.
FTP
: Acronym for Foil-screened Twisted
Pairs. See F/UTP. Not to be confused
with “File Transfer Protocol”.
F/FTP
: Cable with overall foil shield
with FTP. Commonly used in 10GBaseT
applications.
F/UTP
: Cable with an overall foil shield
(F) with UTP. Commonly used in
10GBaseT applications. Also known as
FTP.
GUI
: Acronym for Graphical User
Interface, generally referring to the
touchscreen interface on WireXpert in
this Manual’s context, unless otherwise
stated.
IL
: Acronym for Insertion Loss, is the
loss of signal power resulting from the
insertion of jack to a plug. This is
expressed in dB.
ISO
: Acronym for International
Organization of Standardization.
Generally referring to ISO/IEC 11801
Standards for generic cabling for
general purpose telecommunication
cabling systems or structured cabling.
Jack
: Generally referring to a connector
with female electrical contact or
socket.
LBT
: Acronym for List-Based Testing, is
a unique feature of WireXpert that
allows creation of label list and perform
AUTOTEST in a hierarchical format.
Limit
: Or test limit, refers to the
performance threshold that a cable
installation is obliged to meet.
Link
: See Permanent Link.
LOCAL
: Refers to the WireXpert unit
labelled “LOCAL”.
Margin
: Refers to the difference
between the selected test limit value
and the measured value. This is
