Exfo VDSL2 Manual do Utilizador descarregar pdf (Página 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:

³ 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.

³ Cable Fill allows you to select the type of material the cable can be

filled with. Changing the selection to AIRCORE, JELLY, PULP, 5PR, or

2PR influences the cable capacitance per length, automatically

updating the Cap. T/R-GND field.

³ 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.

³ Input Impedance displays the input impedance in the loop. The

available choices are: >1 MOhm, 100 KOhm.

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Exfo VDSL2 Manual do Utilizador Página 63