Method used to handle the optical power at the wavelength dropping point in OptiX OSN 8800 being too low and closed to the threshold

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The problem can be resolved by decreasing the attenuation of the VOA connected to the OBU at the upstream site. However, the wavelength unflatness caused by line insertion loss and wavelength expansion persists and requires future optimization.

Other related questions:
Method used to handle low transmit optical power
Possible cause 1: Any fiber pigtail in a multiplexing part or the optical cable degrades or is physically damaged. As a result, the attenuation of the fiber increases, and the receive optical power decline causes an OSNR decrease. Possible cause 2: The OA board gain at the local or peer site is decreased. For possible cause 1: a. Check the pigtail of the multiplexing part, and replace the pigtail if it is abnormal. b. Verify that the optical cable is normal. Note: A pigtail in a multiplexing part is one between the following units: Equipment and ODF OA and FIU OA and MUX/DEMUX ODFs TDC and RDC of an OAU board For possible cause 2: Check the OA board gain. If the gain is abnormal, replace the board.

Method used to query the wavelength information of a line board in the OptiX OSN 8800
1. You can query the wavelength information of a line board on the Advanced Attributes tab in the WDM Interface window. 2. You can also query the wavelength information of a line board based on Board Manufacturer Information of its optical module.

Method used to identify whether the WDM-side optical module of the ND2 board in OptiX OSN 8800 is wavelength tunable
The board with "T" included in the BOM code is wavelength-tunable.

Whether OptiX OSN 8800 supports 40G optical wavelength conversion boards
Yes. OptiX OSN 8800 supports 40G optical wavelength conversion boards such as LSXL and LSQ.

Whether the loud noise of fans on OptiX OSN 8800 is normal
The noise can be loud when the fan speed is high to achieve desired heat dissipation.

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