Operation
OTM-20 Installation and Operation Handbook
3-15
W/dBm
In the Laser Source menu, as shown in Figure 3-22, press
[
]
to scroll and
highlight W/dBm. Press the
ENTER
button to access the Laser W/dBm menu, as
shown in
Figure 3-24
. Press
[
]
to scroll and select the desired unit, and press
ENTER
to accept the selection. “*” indicates the selected menu item. After the
configuration is set, press the
QUIT
button
to exit to the higher-level menu. The
selection is saved to memory after the unit is powered off.
Figure 3-24. Laser W/dBm
The default selection is dBm.
Auto Test
The instrument can perform loss testing of the optical fiber and make an estimation of
the optical fiber length. Loss per kilometer is used to calculate the fiber length.
•
Enter Auto Test Menu
: In the main menu, press
[
]
to scroll and highlight
Auto Test. Press the
ENTER
button to access the Auto Test configuration menu,
as shown in
Figure 3-25
.
Figure 3-25. Auto Test Menu
•
Manually Set Loss
: Users can precisely configure the loss of the 1310nm and
1550nm wavelength, so as to increase the accuracy of the optical fiber length.
Summary of Contents for OTM-20
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