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ANUAL
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Using the OTS module
MTS
e
4.
From the OTS Results window press the <Source> softkey to access the Light
source functions of the OTS.
5.
Press the <Laser On> (or <LED on>) softkey.
The resulting measured power is displayed on the power meter.
6.
From the OTS Results window press the <Return>, then <Power meter>
softkey to access the power meter functions of the OTS.
7.
Press the <Set Ref. Level> to store the displayed value as the reference level.
8.
Press the <Return> then the <Source> softkeys.
9.
Press the <Laser Off> (or <LED off>) softkey to switch off the source.
Measuring the fiber under test
After making a reference measurement use the following procedure to measure
the insertion loss of the fiber under test:
1.
Using suitable jumpers and adapters to connect the fiber under test between
the output of the light source and the input of the power meter.
2.
Press the
SET-UP
direct access key to display the OTS TEST SETUP window.
3.
In the power meter configuration menu select dBr as the measurement unit.
4.
Press the
RESULTS
then the <Source> softkey.
5.
Press the <Laser On> (or <LED on>) softkey.
The resulting measured power is displayed on the power meter and
corresponds to the insertion loss of the fiber under test.
Source Specific Functions
Using variable power (with laser source only)
The output power of the laser source can be modified between 0 and -10 dBM
typically. To modify the output power:
1.
Press the SET-UP direct access key to display the OTS TEST SETUP window.
2.
In the laser source configuration menu select CW as the transmission mode.
3.
Select Variable for the output power.
4.
Press the RESULTS direct access key to display the OTS Results window.
5.
From the OTS Results window press the <Source> softkey then the <Laser
On> softkey.
6.
Use the
↑
et
↓
arrow keys to select the required output power.
Scanning Mode
In the scanning mode the Light source alternately transmits on the two
wavelengths every 10 seconds. To use the scanning mode:
1.
Press the
SET-UP
direct access key to display the OTS TEST SETUP window.
2.
In the Light source configuration menu select Yes for the Scanning menu
option. The CW transmission mode is automatically selected when Scanning
is enabled.
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