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Purpose
Two-ended certification testing
Chapter 2
Cable Testing Overview
Modern structured cabling systems and components are designed to support a
variety of high-speed LAN technology interfaces. In order to ensure that
structured cabling systems provide adequate performance to support these
application interfaces, cabling standards committees have developed quality
control specifications intended to be applied as new cabling is installed.
The purpose of instruments like the WireScope 350 is to provide a convenient
and reliable means of certifying new installations for compliance with structured
cabling standards.
Test
Probe
Telecommunications
Closet
WireScope
Standards for structured twisted pair cabling require that both ends of each
cabling run be tested in order to find the worst case performance condition. For
this reason, all certification testing requires a two-part test set, consisting of a
main unit and a remote unit, each of which contains similar test capabilities. One
unit tests the cabling run from the telecommunications closet end and the other
tests from the telecommunications outlet end at the user location.
Certification testing is highly automated. An Autotest function coordinates a
series of measurements between the WireScope and DualRemote devices and
then analyzes the resulting data to determine if the cabling run passes or fails the
required standards.
Several key criteria apply in determining pass or fail status for a tested cabling
run:
·
Whether the user patch cords are included in the cabling run during the
test (i.e. "Link" or "Channel" test configuration)
What standard document and which performance level you want to test
·
the cabling to (i.e. what "Category" or "Class" are you seeking
certification for)
Structured Cabling Link
Telecommunications
Cable Testing Overview 13
Chapter 2
Test
Probe
Outlet
DualRemote
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