EXFO VDSL2 - Manual (Page 63)

Auto Tests
Copper, VDSL2, ADSL2+ and IP Triple-Play Test Set 55
Configuring Final/Active Pair Test
Test Setup
The Test Setup allows you to
select/adjust the setup parameters for
the Final/Active Pair Test as follows:
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Cable Type defines the gauge of
the cable in use. If wire gauge is
measured in American Wire
Gauge (AWG) units, the available
choices are: AUTO, 19 AWG,
22 AWG, 24 AWG, or 26 AWG. For
mm gauge wire, the available choices are: AUTO, 0.32 mm, 0.40 mm,
0.50 mm, 0.60 mm, 0.65 mm, 0.80 mm, 0.90 mm, or 1.20 mm.
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Cable Fill allows you to select the type of material the cable can be
filled with. Changing the selection to AIRCORE, JELLY, PULP, 5 PR, or
2 PR influences the cable capacitance per length, automatically
updating the Cap. T/R-GND field.
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Metallic Insulation Test Time(sec) specifies the duration of the
isolation test: 1 to 15. The default is 3 seconds. A maximum of only 15
seconds is permitted for each connection so that all the measurements
will be completed before the silent switchman times out and
re-applies the battery to the line.
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Input Impedance displays the input impedance in the loop. The
available choices are: >1 MOhm, 100 KOhm.