HT instruments QUICKLAN6050 - Manuale (Pagina 28)

QuickLAN 6050
EN - 9
6.2. CABLE LENGTH MEASUREMENT
The tester measures the length of both twisted-pair and coaxial cables. If the tester is not
calibrated to the cable under test, then factory default cable characteristics are used to
compute the length. If a more accurate length measurement is desired, refer to
“CALIBRATING CABLE LENGTH” described on this manual.
Before a length measurement is made, the tester perform “Test Cables” described on this
manual to prevent any cable failures from corrupting the length measurement.
Cable length measuring procedure:
1. Select cable type under test.
2. Connect the cable and test to the appropriate connector on the tester.
3. Press LENGTH key.
4. Use ▼ or ▲ key to scroll selection multiple displays.
The information that is displayed depends on the type of cable selected. For twisted pair
cable, each pair has corresponding length measurement. A 5% difference in length
between pairs is uncommon. Coaxial cables must be unterminated for the tester to display
the cable’s length.
m m m m m
Fig. 5: Cable length example for about 50m long UTP cable and coaxial cable