Tripp Lite T040-001-HDMI Owner's Manual page 5

Detecting Connections
Crossed Connection
If the wires inside the cable are out of order or crossed, the LEDs on the
Remote Identifier will illuminate to show in what order they are wired.
For example, in the diagram below, when the Master unit shows pin 14
illuminated, pin 19 on the Remote unit will illuminate, indicating those
connections are crossed.
Note: Crossed connections cannot be tested in "Continuity" mode.
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Continuity
Off
Sweep
Power
Master
Remote
5
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