EXFO FTB-635 Wideband Copper and DSL Test Module - Manual (Page 207)

TDR Test
Copper and xDSL Tests 199
Xtalk TDR
Xtalk TDR
The Xtalk TDR test allows you to detect and isolate split pairs or electrical
dissimilarities between tip (A) and ring (B) copper wires which may be
causing service disruptions. The test transmits on pair one and receives on
pair two to locate the split pairs.
To access Xtalk TDR Test:
1. From the Copper main menu Test Groups, tap TDR test.
2. From the Tests menu, tap Xtalk TDR to start the test.
3. Use the graph controls to maneuver the graph. Refer to Graph Controls
on page 19 for more information, except for hold trace , see below.
The page allows you to view and set the following parameters:

Hookup Diagram button opens a Confirmation window displaying
how to connect your cables.

Select Cable button opens a new page that allows you to set the Cable
Parameters for the current test. See Select Cable on page 193 for more
information.