Instructions

Chapter 2: Certify Twisted Pair Cabling
Twisted Pair Autotest Results
51
 The vertical scale is the measured value in decibels.
 The horizontal scale is the frequency range in megahertz.
 To see help for the screen, tap .
 To switch between results for the main unit and the remote,
tap REMOTE or MAIN.
 The margin at the cursor’s location. The margin is the
difference between the measured value and the limit. The
margin is negative if the pair failed.
 The measured value at the cursor’s location.
 When you first look at the plot, the cursor is at the frequency
of the worst margin. To move the cursor to the worst value,
tap WORST VALUE. (The insertion loss plot is different. See
the Technical Reference Handbook.)
 To see the plots for pairs, tap or . To select pairs to
show on the plot, touch or for one second to see the
SELECT PAIRS window. Select the pairs you want to see, then
tap OK.
 When you first look at the plot, the cursor is at the frequency
of the worst margin. To move the cursor to the worst value,
tap WORST VALUE (). The box at the bottom of the cursor
shows the frequency at the cursor’s position.
To move the cursor to other points, touch and drag the yellow
circle at the top of the cursor.
To move the cursor in small increments, tap the yellow circle,
then tap the arrow buttons that show on the plot ( or ).
 The overall result for the test. If you look at pairs, the result is
for those pairs. If the result shows an asterisk, see “PASS*/
FAIL* Results” on page 42.
To zoom in and out, use the pinch, reverse-pinch, and double-
tap gestures on the touchscreen. You can also use the zoom
controls to change the magnification on the frequency and
decibels scales independently.