EXFO VDSL2 - Manual (Page 34)

Auto Tests
26 AXS-200/635i
Configuring CQ Auto Tests
Test List 1
The Test List 1 tab allows you to select the types of tests to include in the
auto test function.
The following tests are available:
³
AC/DC Voltage detects AC RMS
and DC voltages in the line. Toggle
between Enable and Disable.
³
AC/Loop Current checks for AC
RMS and loop currents in the line.
Toggle between Enable and
Disable.
³
Shorts Meter measures resistances between the wires and to ground.
It is also used to identify possible faults, and to measure the resistance
of the twisted pair cable for estimating loop length. Toggle between
Enable and Disable.
³
Opens Meter measures the capacitance of the cable for estimating
loop length. Toggle between Enable and Disable.
³
Metallic Insulation measures the quality of insulation or sheathing for
the copper pairs.
³
Load Coil Detection detects the presence of load coils in the line.
Toggle between Enable and Disable.
³
Power Influence measures the effects that 50 Hz and 60 Hz powerline
(AC Mains) interference has on the circuit under test. Toggle between
Enable and Disable.
³
Longitudinal Balance is very useful in identifying loops that will suffer
from crosstalk. Toggle between Enable and Disable.
³
Noise Metallic measures VF noise in the line. Toggle between Enable
and Disable.