User guide

OMNIScanner User Guide
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TDRL to diagnose a Link for further information.)
Press ESC to exit the RETURN LOSS screen.
ELFEXT
ELFEXT (Equal Level Far End Crosstalk) measures the electromagnetic
coupling at the far end and normalizes the result to account for the cable’s
attenuation. ELFEXT is reported in dB and results are computed for twelve
pair combinations at the OMNI Scanner and the OMNI Remote end of the
cabling.
In the ELFEXT screen, the worst case margin for all
pair combinations is shown at the top of the screen.
The pair combinations are displayed in the column
on the left side, followed by the ELFEXT value, the
limit and the frequency. The result for each pair
combination is tagged with a PASS or FAIL
indicator.
The scrollbar indicates that there are more test results. Use the ê on
OMNI Scanner ’s keypad to scroll through the list and view results for the
other six pair combinations.
Press or to toggle between the
ELFEXT results for OMNI Scanner and OMNI Re-
mote.
Press (Graph) to display the ELFEXT graph
for the currently highlighted pair combination.
ELFEXT is displayed for the frequency indicated by
the cursor position.
Press (Pairs) to view ELFEXT graphs for other pair combinations.
Press ESC to exit the ELFEXT screen.