Versiv Series Cabling Certification Product Family
Technical Reference Handbook
158
Long-Range Communication Mode
(DSX-5000)
DSX-5000 modules have a long-range communication mode that
lets you do tests on very long cables, such as spools of cable and
long links used for voice communications. The DSX-5000
automatically uses this mode when the cable is too long for
normal communications between the main and remote testers.
For example, a Cat 6 cable longer than approximately 200 m will
cause the testers to use long-range communication mode.
When the testers use long-range communication mode, the
arrows on the connection icon are orange:
Note
Tests take more time to complete in long-range
communication mode. For example, an Autotest can
take 90 seconds to two minutes to complete.
A very long cable will fail the Autotest, but you can measure cable
length and compare other results to results from a known- good
cable of the same length to see if the cable is good.
About the AxTalk Analyzer Kit
The DSX-8000 kit includes the hardware you need to do tests for
alien crosstalk on twisted pair cabling. Alien crosstalk is noise, or
crosstalk, transmitted between adjacent cables in a bundle or
patch panel. Alien crosstalk is a primary source of noise in cabling
used for 10GBASE-T applications and above.
The AxTalk Analyzer kit is available as an option for the
DSX-5000.
For instructions on how to do alien crosstalk tests, install the
AxTalk Analyzer software, which is available on the Fluke
Networks website, then see the online help in the software.
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