Exfo FOT-930 Multifunction Loss Tester Uživatelský manuál stáhnout pdf (Strana 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 FASTEST

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).

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Exfo FOT-930 Multifunction Loss Tester Uživatelský manuál Strana 35