EXFO VDSL2 - Manual (Page 108)

Fault Location Tests
100 AXS-200/635
Loop Mapper Test
To measure the distance/duration between reflections:
1. Press
to cycle the mode and change to CursorMarker.
2. Press the left/right arrow keys to position the blue cursor (indicated by
the blue color of data above cursor).
3. Press the up arrow key to select the red marker.
4. Press the left/right arrow keys to position the marker.
5. The difference between the cursor and marker is continuously
updated and is indicated with a triangle (delta symbol) above the
graph.
To zoom in/out:
1. Press
to select the Zoom function. Default mode is Zoom.
2. Press the up/down arrow keys to increase/decrease Zoom function.
The graphical display zooms in or out accordingly.