EXFO IQS-3150 Variable Attenuator for IQS-500/600 - Manual (Page 60)

Operating the IQS-3150
54 IQS-3150
Using the Shutter
Shutter Status
The status of the shutter is shown on the left of the data display.
It is also shown on the Shutter (red) LED push button on the front panel of
the module; when lit, the shutter is closed.
High-Power Detection
The module is equipped with a sensor that detects the presence of
unusually high power at the input. When high power is detected, the
shutter automatically closes and the high power status is indicated by a
laser-radiation sign on the data display.
The red LED push button on the front panel of the module lights up.
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