Chapter 7
Cable Testing Fundamentals
7-4
Permanent Link Test Setup
ANSI, EIA, TIA, and ISO all provide two network communication circuit
specifications: permanent link and channel link. A permanent link consists of up to
90 meters of horizontal network cabling. The permanent link (shown below) is
used to certify the horizontal network cable installation before network connection
and user hookup. It excludes adapters, patchcords, and jumpers.
Display
2 Meter Patchcord
Figure 7-3: Permanent Link Test Connections
Connection Cable Length Limits
Horizontal Network Cable Maximum of 90 meters
Note: Ensure that the Cable Type is set to Twisted Pair Permanent Link.
If you exceed the tester length test limits, the tester will fail the link.
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