EXFO FOT-930 Multifunction Loss Tester - Manual (Page 35)

Multifunction Loss Tester 27
Setting Pass/Fail Thresholds
To set loss or ORL thresholds:
1. Press Menu, then select Setup >
Thresholds.
2. Use the arrows to select a threshold group in
the Current list. Select None to deactivate all
thresholds.
3. Use the arrows to select:

a fiber mode (singlemode or multimode)

loss units (dB or dB/distance; distance units are selected in F AS T ES T
setup)
Note: When feet is the current distance unit, you must set thresholds in dB/kft to
obtain meaningful values.
4. Use the arrows to select a value in the table (under the Loss or ORL
columns), then press Enter to display the on-screen keyboard (for
details about keyboards, see Using Menus and Keypad on page 14).
5. Set the threshold, then press OK (F1/F2 key) to hide the keyboard. The
value must be within your unit’s loss/ORL range.
Thresholds are saved only when you turn the unit off.
To rename a threshold group:
1. From the Thresholds pane, use the arrows to select the Current list,
then press Enter to open it.
2. With the current group highlighted, use the up/down arrows to select
the desired group, then press Enter to activate it.
3. Press Rename (F1/F2 key) to display the on-screen keyboard (for
details about keyboards, see Using Menus and Keypad on page 14).
4. Set the new group name (maximum 10 characters), then press OK
(F1/F2 key).