Numbering of the optical ports on the TOM board on the NMS

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For all tributary boards, the logical ports are numbered starting from 3. In other words, the optical port numbers displayed on the NMS start from 3.
Numbers 1 and 2 are reserved for WDM-side ports.

Other related questions:
Mapping relationship between the port sequence numbers on the NMS and physical ports on the TOM board
For the TOM board, physical ports 1�? correspond to port sequence numbers 3�?0 on the NMS.

Receive optical power range of 2.5G optical ports on TOM boards
Conversion between SNCP protection types is not allowed. You need to convert the SNCP service into a common service, and convert the common service into the desired type of SNCP service.

Transmission distance and receive optical power range of a TOM board on OSN 6800
The transmission distances of a TOM board on OSN 6800 can be 10 km, 40 km, and 80 km. The receive optical power range is �? to �?0 dB.

850 nm optical module on the LOA board
It is multi-mode.

Optical ports of an FIU board
An FIU board has a total of seven optical ports. The IN/OUT optical port is used to receive and transmit line optical signals. The RC/TC optical port is used to receive and transmit optical signals of the main optical channel. The RM/TM optical port is used to receive and transmit optical signals of the supervisory channel. The MON optical port is used to output optical signals to the spectrum analyzer board for online optical performance monitoring.

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