EXFO IQS-2100 Light Source for IQS-500/600 User Manual
Page 27
Setting Up Your Light Source
Light Source
21
Setting the Attenuation
The attenuation value in the data display will then indicate the increased or
decreased attenuation.
As you change the attenuation value, you will notice that the numbers
change from green to orange. After you release the attenuation controls,
they revert to their original green color to indicate that the change has been
applied to the source (when it is active). The focus indicator rectangle on
the control turns blue when setting the attenuation value.
The attenuation value indicator on the data display (see preceding figure)
indicates the level of attenuation in dB, selected using the attenuation
controls.
You can also set attenuation from the QuickTools utility. For details, see
Monitoring Light Source Modules on page 29.
Note: To obtain maximum output power, attenuation should be set to 0.0 dB and
modulation should be set to None.
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