Point-to-point Networking Optical Line Protection
Diagrammatic sketch：
The two stations use 2-core optical fiber to build a point-to-point transmission network, which can support the maximum 25.6T transmission capacity (400G * 64 waves), which greatly saves optical fiber resources.
OSC can realize the signal communication of each station, and the whole network can be managed by single station access.
Ultra-long distance transmission can be realized by configoptical layer units such as BA, LA, PA and DCM (incoherent transmission application).
Optical Line 1 + 1 protection (OLP)
Protect the transmission section optical cable
The line no-light signal is used as the criterion to trigger the inversion. When the performance of the main line deteriorates or has no light, the system is automatically switched to the standby line. Since the APS protocol is not required, the protection exchange is stable and fast
For point-to-point, lower-protection scenarios