User guide

OMNIScanner User Guide
4 - 6
In the NEXT 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 measured NEXT
value, limit, and frequency. The result for each pair
combination is tagged with a PASS or FAIL
indicator.
Press or to toggle between the NEXT results for OMNI Scan-
ner and OMNI Remote .
Press (Graph) to display the NEXT graph for the highlighted pair
combination. NEXT is displayed for the frequency indicated by the cursor
position.
Press (Pairs) to view NEXT graphs for other
pair combinations.
Press (Diagnostics) to display the TDNXT
screen, where cabling and/or connection faults can
be identified. (See Chapter 5 - Diagnostics: Using
TDNXT to diagnose a Link for further information.)
Press ESC to exit the NEXT screen.
Attenuation
The Attenuation function measures signal loss in a cable as a function of
frequency. OMNI Remote generates and injects a signal at the far end of the
cable. OMNI Scanner measures the signal at the other end of the cable to
determine cable loss.
In the ATTENUATION screen, the worst case margin
for all pairs is shown at the top of the screen.
The pairs are displayed in the column on the left
side, followed by the Attenuation in decibels (dB),
the Attenuation Limit values, and the frequency. The
result for each pair is tagged with a PASS or FAIL
indicator.