MODE
3. Threshold Setup
The user can set up the value. The steps are as following:
In the menu mode, select the second "Threshold Setup" enters to threshold setup
menu. See Fig. 3.
In this menu, left side displays wavelength and right side displays threshold value. Top
line indicates system information (date and time) and bottom line indicates the
information of threshold including threshold symbol, threshold number and name.
In this menu, short press Threshold button (less than 2 seconds) to switch the
wavelength among 1310nm, 1490nm and 1550nm. Press ▲ ( ) button to view the
previous record, ▼ ( ) button to view the next record, button to validate the
current threshold value. After the above operation, all P/F mode test results will base on
this threshold value.
dBm/dB
REF/SEL
Fig.3 Threshold Setup Menu
10-03-03 11: 43: 15
1310nm
1.2
-4.5
-15.0
ONU
dBm
Pass
Fail
Warning
dBm
dBm
TelecomThreshold 01
USING
4. Time Setup
In the menu mode, select the forth "Time Setup" enters to time setup menu. See Fig. 4.
NOTE: The threshold value can only be preset by PC software. See PC
software section for detail. After finishing the setup, press button (less
than 2 seconds) to exit the setup menu.
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