EXFO VDSL2 - Manual (Page 173)

Connection Setup for DSL/IP Triple-Play Verification Tests
Copper, VDSL2, ADSL2+ and IP Triple-Play Test Set 165
Setup Line Connection
To select the thresholds parameters to configure:
1. From the Connection Setup pane, press the left/right function arrows
until the Thresholds tab is displayed.
2. Press the F1, F2, or F3 key located just below the tab to select it.
3. Press the up/down arrows to select the desired parameter.
4. Press to modify the parameter.
5. Use the alphanumeric keypad to enter the value you want to specify.
6. Press to confirm the selection.