8
Figure 2
Channel
Channel measurements are typically performed when restoring a service or to verify the
existing cabling for application support. The maximum length allowed for a Channel
is 100 meters. It is uncommon to perform Channel tests at the conclusion of a new
installation, since the patch cords that belong to each link are rarely available at that
time. Correct Channel measurements must cancel the effects of the mated connection
in the tester’s channel adapters as seen in Figure 2, which also shows the optional
consolidation point we saw in the Permanent Link. The same Data Center and Direct
equipment links also exist for the Channel.
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