Whether 1492-nm and 1511-nm wavelengths on the RM1 and TM1 ports of the ST2 boards are single-fiber unidirectional or single-fiber bidirectional

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The ST2 board uses two wavelengths to transmit and receive signals. It works with the SFIU board for single-fiber bidirectional transmission of supervisory signals. The SFIU board converges the two wavelengths of the ST2 board at its LINE1 port for output. This applies to scenarios where IEEE 1588 clock signals need to be transmitted in supervisory signals.

Other related questions:
Whether the logical fibers between the client-side ports of OLP and OTU boards need to be created on the NMS
When port protection or 1+1 protection is configured in single-site mode, it is not mandatory to configure logical fibers. This is because boards and ports are specified in single-site configuration and there is no need to search for boards or ports based on logical fibers. Correct logical fibers created on the NMS provide references for configuration and check. Therefore, you are advised to correctly create logical fibers on the NMS.

Whether an optical module whose wavelength is 1511 nm can be configured on the TM/RM port of the SCC board on OSN 1800
An optical module whose wavelength is 1511 nm can be configured for the TM/RM port of the SCC board on OSN 1800. However, OSN 1800 board supports CWDM. A conflict occurs between the 1511 nm supervisory wavelength and the 1511 nm service wavelength. Therefore, it is recommended that the SCC board on OSN 1800 use optical modules whose supervisory wavelength is 1310 nm.

Whether an optical module whose wavelength is 1511 nm can be configured on the TM/RM port of the SCC board on an OSN 1800
The SCC board on an OSN 1800 needs to use an optical module whose wavelength is 1310 nm.

Whether the corresponding fiber on the NMS turns red after a fiber cut occurs on WDM equipment
If logical fiber connections are correct and a fiber cut occurs on WDM equipment, the corresponding fiber on the NMS will turn red.

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