Running mode of fans on OTN devices

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Fans on OTN devices have two running modes: automatic speed adjustment and manual speed adjustment.

Other related questions:
Fan running modes of an OTN device
Automatic speed adjustment and manual speed adjustment modes are supported by the fans on an OTN device.

Fan working mode of BWS 1600G
Question: What are the working modes of fans on BWS 1600G devices? Answer: Fans on BWS 1600G devices can work in two modes. One is the speed adjustment mode. In this mode, the fan speed can be manually set, including high speed, low speed, and stop. The other mode is the automatic adjustment mode. The system control board regularly checks the temperature of each board on the NE every minute to determine whether the temperature of each board exceeds the threshold. If the temperature of one board exceeds the upper threshold, the fan board enables the high speed mode. If the temperature of all boards exceeds the lower threshold, the fan board enables the low speed mode.

Methods for changing the SNCP mode of an OTN
1. Convert SNC/I protection services into common cross-connections. 2. Enable the PM non-intrusive monitoring. 3. Convert the common cross-connections into SNCP services.

Latency of services carried on OTN devices
The pre-calculated latency of each WDM device is 100 μs. The latency of a fiber is 5 μs/km.

Methods used to change the SNCP mode of the OTN
In the WDM service configuration: 1. Convert SNC/I protection services into common cross-connections. 2. Enable the PM non-intrusive monitoring. 3. Convert the common cross-connections into SNCP services.

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