Fluke DTX-1800 Technical Reference Handbook page 121

The test takes noise voltage samples every second on pair
3, 6. The test produces a PASS/FAIL result if the selected
standard specifies a noise limit.
Monitoring impulse noise without a smart remote
may produce unreliable test results.
To monitor impulse noise:
1 Attach twisted pair link interface adapters to the tester
and smart remote.
2 Turn the rotary switch to MONITOR and turn on the
smart remote; then connect to the testers to the ends
of the cabling.
P
3 Press .
4 To adjust the noise threshold, press
A D
to change the value. Press
resume testing.
Tip: Fluke Networks recommends a noise threshold of
30 mV with an average pulse rate below 0.01/sec for
testing 1000BASE-T (Gigabit Ethernet) cabling.
To stop the test at any time, press
Note
L
Stop; then use
P
to
I
.
Certifying Twisted Pair Cabling
Monitoring Impulse Noise
If you disconnect the tester and smart remote
during the impulse noise test, it takes several
minutes for the remote to stop testing.
Figure 3-25 describes the impulse noise test results.
Note
3
3-35