Running Individual Tests
Monitoring Impulse Noise
4
4-25
Noise Test Results
As the noise test runs, the displayed test results are updated every second after the
first 10-second sample period. Table 4-6 describes the items on the screen.
Table 4-6. Items on the Noise Monitor Screen
Item Description
Impulse
Noise
Threshold
The minimum level of noise that is considered to be a noise hit. The
default threshold is 270 mV. If you want to change the fault threshold, see
the earlier section “Changing the Impulse Noise Threshold.”
Noise Test The overall result of the noise test. Displayed only when 10BASE-T is
selected. A PASS result means that no 10-second intervals included more
than two noise hits. A FAIL result means that more than two noise hits
were detected during a 10-second interval.
Average The average number of noise hits per second since the start of the test.
Peak The highest number of noise hits per second and the time at which the
peak was recorded.
$ Stop
Test
Stops the noise test and freezes the screen. To restart the noise test,
press T.
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