EXFO MaxTester 635 - Manual (Page 143)

SmartR™ Features
Copper and VDSL2/ADSL2+ Multi-play Test Set 135
FaultMapper
FaultMapper
The FaultMapper test allows you to locate and
identify service-affecting line faults using TDR (time
domain reflectometry) and RFL (resistance fault
locator) technology. This test is useful in locating
bridged taps, shorts, grounds, and opens.

Current Test displays the test being measured.

Far End Strap allows you to select option Yes or
No for use of a strap.
A strap, while not required, enables FaultMapper
to calculate distance to a ground/earth fault.

Cable Setup button opens a new page that allows
you to set the Cable Parameters for the Current Test.

Result displays the cable faults in text and graphical format.
Note: Some displayed resistive faults may be effective faults. For example if a
strap is present, a T-G short may be shown twice: first as a T-G short and
second as an effective R-G short. In such cases, the resistance shown is the
resistance that would be measured using a multimeter.

Estimated Length displays the cable length when the cable is open.
Note: The cable length may include the Bridge Tap length. Remove the Bridge Tap
for better accuracy.

Fault Status displays the number of faults detected (or No fault
detected) after running the test. The status Open detected is reported
in the following case:

No strap.

The pair is open.

No faults (other than the pair being open).