Fluke DTX-1800 Technical Reference Handbook page 117

1
8
7
A
The location of the ACR-F results. Press
between the tester and smart remote.
2
B
The overall ACR-F result. "PASS*/FAIL* Results" on page
3-12 describes results marked with an asterisk.
3
C
Horizontal and vertical magnification levels for the plot. To
change the magnification, press
4
BC AD
use or
D
5
Measured ACR-F for the cable pairs. Higher ACR-F means
better cabling performance.
6
E
The limit line (in red) for ACR-F. The higher the
measurements rise above the limit line, the better the
cabling performance. If the line is black, ACR-F is not
evaluated at those frequencies. See page 3-13. Press
see plots of individual pairs.
F
The cursor and its location on the frequency scale. When you
first view the plot, the cursor is placed at the worst margin.
BC
Use to move the cursor (if the plot is in zoom mode,
amd13f.eps K
press Change To Cursor first).
G
The measured ACR-F and margin at the cursor's position.
Margin is the difference between the measured value and
the limit. Margin is negative if the pair failed.
H
The horizontal scale is the frequency range in megahertz.
The vertical scale is the ACR-F range in decibels.
Figure 3-23. ACR-F Plot
Certifying Twisted Pair Cabling
Twisted Pair Autotest Results
J
to switch
K
Change To Zoom; then
to zoom horizontally or vertically.
3
L
to
3-31