FS FOPM-107, Быстрый старт

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EN
directly. In this mode, the LED indicators will not light. The results are displayed in
2 units: dB and dBm, using button to switch. See Fig. 1.
Unit dBm is to display the actual power.
Unit dB is to display a power value relative to a reference value. In this mode,
reference value needs to be preset correctly.
(2) P/F Test Mode
P/F test mode means the measured light power comparing to a preset threshold
value to determine if the measured light power meets user’s requirement or not.
LCD will display the optical power and current state. The LED indicators below the
LCD display will also change color to match the current state of measured light.
This test mode is very useful in some special cases required. See Fig. 2.
dBm/dB
10-03-03 11 : 43 : 15
1310nm
1.2
-4.5
-15.0
1490nm
ONU
dB
dB
dB
Auto off
OLT
1550nm
VIDEO
Fig. 1 Normal Test Mode Menu (dB)
10-03-03 11 : 43 : 15
1310nm
1.2
-4.5
-15.0
1490nm
ONU
dBm
Pass
Fail
Warning
dBm
dBm
Auto off
OLT
1550nm
VIDEO
Fig. 2 P/F Test Mode Menu
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