Noise Tests
Copper and G.fast/VDSL2/ADSL2+ Multi-play Test Set
185
WB PSD Noise
Termination Resistance
allows you to select the resistance of the
dummy load connected to the line, unless HiZ Cable is selected above.
Mask
allows you to select a network representing the power signal of
other services, overlaid on the active noise graph, to identify its
presence on the line under test. All of the masks you enabled from the
Select Masks
tab are listed here for test selection.
Threshold Settings
button opens a new page that allows you to set the
RMS Noise Threshold
parameters for the test.
Select Graph
button changes to
Graph Selected
when pressed and
opens a new selection of function keys which allow you to maneuver
the graph as follows:
Cursor
- press the left/right arrow keys to decrease/increase the
values by moving the cursor. Press and hold the left/right arrow
keys to accelerate the cursor. Press
to recall the cursor and
place it in the middle of the current x-axis limits.
Zoom
references the middle of the x/y axis and
not
the cursor
position. Press the arrow keys as follows:
Right = x-axis zoom in.
Left = x-axis zoom out.
Up = y-axis zoom in.
Down = y-axis zoom out.
Pan
- use left/right arrow keys to pan the x-axis and the up/down
arrow keys to pan the y-axis.
1:1
resets the x-axis and y-axis limits to full scale.
Return To Test
removes these function keys and displays the
previous ones.
Peak ON
/
OFF
allows you to measure the current PSD noise value,
compare it against the peak value at each given frequency, and display
the maximum value. Select either Peak
ON
or Peak
OFF
.
Summary of Contents for MAX-635G
Page 1: ...User Guide Copper and G fast VDSL2 ADSL2 Multi play Test Set MAX 635G www EXFO com ...
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Page 270: ...TDR 260 MAX 635G Continuous Examples of Common Faults Short Fault ...
Page 271: ...TDR Copper and G fast VDSL2 ADSL2 Multi play Test Set 261 Continuous Open ...
Page 272: ...TDR 262 MAX 635G Continuous Bridged Tap ...
Page 273: ...TDR Copper and G fast VDSL2 ADSL2 Multi play Test Set 263 Continuous Splice Joint ...
Page 274: ...TDR 264 MAX 635G Continuous Peak Function ...
Page 275: ...TDR Copper and G fast VDSL2 ADSL2 Multi play Test Set 265 Continuous Dual Trace View ...
Page 276: ...TDR 266 MAX 635G Continuous Load Coil ...
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