TriBrer EPN90, Руководство пользователя, Страница: 13 / 24

11
Wavelength
Max. Value
Min. Value
Warning Value
FIGURE 1
FIGURE 2
FIGURE 3
When the cursor is on NUM , you can change the
threshold number by pressing key. (see figure 1)
Enter
When the cursor is on FALT: , WRNG: , FALT: , you can
shift the cursor from each bit of the data. (see figure 2)
Move the cursor up, please note the cursor is not in one
bit of any data.
Move the cursor down, please note the cursor is not in one
bit of any data.
Increase the bit by 1, when the cursor is in one bit of any
data. (see figure 3)
Decrease the bit by 1, when the cursor is in one bit of any
data. (see figure 3)
How to understand the threshold:
1.Each wavelength has its threshold.
2.If the current value > Max. Value, the alarm of corresponding
wavelength will be
FAIL .
3.If the current value < Max. Value, but > Warning Value, the
alarm of corresponding wavelength will be PASS .
4.If the current value < Warning Value, but > Min. Value, the
alarm of corresponding wavelength will be WRNG
.
5.If the current value < Min. Value, the alarm of corresponding
wavelength will be
FAIL .
PON- Threshold set
ONT:1310nm------
OVER FALT : 03.0
LOW WRNG:-20.0
LOW FALT : -30.0
LOW FALT : -3 0.0
REF/
Enter
Threshold
Unit : dBm
OLT:1490nm
ONT:1310nm VDO:1550nm
OVER FALT : OVER FALT :
OVER FALT :
03.0
LOW WRNG: LOW WRNG:
LOW WRNG:
-20.0
LOW FALT : LOW FALT :
LOW FALT :
-30.0
03.0
-20.0
-30.0
03.0
-20.0
-30.0
NUM: 5