EXFO FTB-635 Wideband Copper and DSL Test Module - Manual (Page 201)

TDR Test
Copper and xDSL Tests 193
Manual TDR
Select Cable
This Cable Selection page allows you to set cable parameters, including
the Velocity of Propagation, for both the Manual TDR and Xtalk TDR
tests.
To select cable values:
1. From either the Manual TDR or Xtalk TDR page, click the Select Cable
button to open the page.
2. In the Cable Selection page, edit the cable parameters as required.
3. Tap Close to confirm and close the page.
The page allows you to set or view the following 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 read-only entry displays 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 allows you to set the velocity of propagation
for the cable as a ratio of the speed of light.

Cable Temperature allows you to change the temperature of the cable
under test in either degree C or F.