Whether the laser on an FIU board can be turned off

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An FIU board is not equipped with any laser. Instead, it has only optical splitters, multiplexers, and demultiplexers. Therefore, no laser can be turned off.

Other related questions:
Method used to keep the laser on an OTU board off since it is automatically turned on 5 minutes after it is turned off
You can set Laser shutdown to Disable in Automatic Disabling of NE Function on the U2000.

Whether the local or peer laser is turned off when ALS is enabled on the 52TOG board but no optical signal is input to the client side of the board
The peer client-side laser is turned off.

Reason why the laser on the RAU board cannot be turned on
The possible causes are as follows: 1. The fiber return loss exceeds the threshold. 2. The IPA is not configured. 3. When the network becomes faulty, IPA is triggered and the laser is shut down.

How can I turn off the DP300 display?
Tap the power button in the lower right corner of the display and choose to turn off the display, exit the videoconferencing system, or restart the videoconferencing system as prompted.

Whether the FIU board reports the MUT_LOS alarm
Yes, it does.

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