Difference in processing OSC bytes when the SCC board is online or offline

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The automatic OSC byte pass-through function is set when the SCC board is online but it is also effective when the SCC board is offline. In the receive direction, OSC overheads can be automatically transmitted to the downstream even using this function even if the SCC board is offline.
In the receive direction, the OSC board receives overhead bytes (OSC bytes) and outputs them to the SCC board for parsing. In the transmit direction, the SCC board collects local management information and outputs the information to the OSC board who then transmits the information in the OSC overhead format.

Other related questions:
Processing OSC bytes when the SCC board is online
In the receive direction, the OSC board receives overhead bytes (OSC bytes) and sends them to the SCC board for parsing. In the transmit direction, the SCC board collects local management information and sends the information to the OSC board in the OSC overhead format.

Optical supervisory wavelength for the SCC board on OSN 1800
The 1310 nm wavelength can be used by the OSC port of an SCC board on OSN 1800.

Optical supervisory wavelength used by an SCC board on OSN 1800
Generally, 1310 nm wavelength is used.

Method used to determine whether the new SCC board is initialized when one SCC board in an OSN 6800 subrack equipped with two SCC boards is replaced
The new SCC board will complete the initialization 15 minutes later after being inserted into the slot housing the original SCC board.

Whether an SC2 board can concurrently process OSC signals and ESC signals
Processing for OSC signals is different from that for ESC signals. An SC2 board concurrently processes two OSC signals of different directions, transits and exacts the system overhead, and sends the signals to the SCC board. OSC signals occupy a dedicated wavelength for transmitting monitoring and OAM information. Transmission of ESC signals does not require dedicated monitoring units such as SC2. The ESC signals and service information are carried over the same wavelength, which does not require extra wavelength resources.

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