EXFO MaxTester 635 - Manual (Page 200)

Frequency Tests
192 MAX-635
Load Coils
Load Coils
The Load Coils test allows you to detect the presence of load coils, which
are detrimental to the use of DSL technologies on the line. If a load coil is
detected, use the time domain reflectometry (TDR) test to quickly locate
and remove it from the cable.
Detection
The Detection function specifies the presence or
absence of load coil in the cable section, and displays
the number of load coils in the line and measured
values in graphical form.

Current Group is the current test group name, for
example Frequency Tests.

Current Test displays the test being measured.
Here you can switch to another test from the given
list. However, this action will terminate the
ongoing measurement test.

Cable Parameters:

Cable Type allows you to select a cable entry (with its associated
parameters) from the current Cable Book, to use for testing. The
selection is not saved when leaving the test. The current Cable
Book entry is shown by default.

Cable Fill Material read-only entry is the type of material the cable
is filled with: Aircore, Jelly, Pulp, 5 PR, or 2 PR. Setup in the Cable
Book.

Velocity of Propagation read-only entry is the velocity of
propagation for the cable as a ratio of the speed of light. Setup in
the Cable Book.

Cable Temperature allows you to change the temperature of the
cable under test in either degree C or F.