Agilent Technologies WireScope 350 User Manual page 22

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Link configuration
The link configuration is used in facilities still under construction, and
does not include user patch cords. Because the link configuration does
not include the two additional connections which the patch cords would
produce, performance standards for link configuration tests are more
stringent. The WireScope and DualRemote attach to the link under test
with special link test probes, which terminate into modular-8 plugs.
Channel configuration
The channel configuration includes the user patch cords at both ends of
the cable run. The pass/fail limits applied when testing with the channel
configuration are less stringent than for the link configuration, to allow
for the performance degradation inherent in the two additional
modular-8 connections.
The WireScope and the DualRemote attach to the channel under test
with special channel probes, which provide a modular-8 jack interface
for connection to the user patch cords.
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