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Section 3: Applications
It is important to keep all optical connections and surfaces free from dirt, oils, or
other contaminants to ensure proper operation. Always clean all test jumpers before
conducting the test procedures outlined in this Guide (see Section titled “Maintenance”
for details).
Measuring Optical Power
Figure 3-1 illustrates the following procedures.
1 Turn on the CSM1 optical power meter.
2 Select the appropriate ber optic test jumper. The ber type of this jumper must be the same
as the ber type normally connected to the output being measured.
3 Mount the appropriate adapter cap on the CSM1 optical input. This adapter cap must match
the connector on the end of the test jumper you will connect to the CSM1.
4 Connect one end of the test jumper to the CSM1 adapter cap and the other end to the
optical output to be measured.
5 Press the [l] key to select the calibrated wavelength that matches the nominal wavelength
of the source being measured.
6 If the CSM1 is presently measuring loss [dB], press and release the [dB/dBm] key to display
power in [dBm], or press and hold to display power in [µW].
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