Noise Tests
Copper and G.fast/VDSL2/ADSL2+ Multi-play Test Set
181
VF Impulse Noise
VF Impulse Noise
The
VF Impulse Noise
test allows you to measure voice frequency impulse
noise on the circuit under test.
Count
The
Count
function displays and updates results in
real time
, for the length
of time set in
Test Duration
or less if you stop the test. The last valid results
then remain displayed.
Current Group
is the current test group name, for
example
Noise Tests
.
Current Test
displays the test being measured.
Here you can switch to another test from the given
list. However, this action will terminate the
ongoing measurement test.
VF Noise Filter
allows you to define the voice
frequency noise filter to be used, dependent on
ITU
or
ANSI
Standard
mode and the
Noise Filter
set in
Setup
/
Application Settings
.
Termination Resistance
is a read-only value of
600
Ω
.
Test Duration
allows you to set the length of time to run the test from a
list of values. If
UFED Control
option is enabled, the maximum value is
limited to15 min.
Threshold Settings
button opens a new page that allows you to set the
VF impulse noise thresholds.
Result
displays the
High
,
Mid
,
Low
counts, respective detection levels,
and
Elapsed Time
. The pass/fail status of the
Mid
level is displayed
after 1 s and then periodically refreshed, until you stop the test.
Test Status
displays the current state of measurement or an error
message.
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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