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Semi-active WDM solution for 5G fronthaul
Date of issue:2020-12-26 20:02:12
Program features:
(1) AAU/DU first chooses CWDM color light module (6/12/18 waves), and second chooses DWDM color light module (up to 48 waves), which is transmitted through wavelength division multiplexing.
(2) With protection and recovery function, a 1:2 coupler is added on the line side of the remote device to receive the optical signal of the main/backup channel at the same time; an optical switch and PD are added on the line side of the central office device, and the device automatically switches the light through the line LOS alarm. Switch to complete the channel switch.
(3) The client side of the combiner/demultiplexer adds PD to monitor the optical power of a single channel, and then judges the service failure.
(4) Increase network management, provide configuration management, fault management, performance management, network topology management and other functions.
Application scenario analysis:
(2) Only one core fiber is required for one station, which consumes very low backbone fiber resources
(3) It can meet the requirements of multiple networking scenarios such as star and chain
(4) The remote system does not need power supply and has the ability to deploy outdoors flexibly
(5) Passive multiplexer/demultiplexer devices can be deployed at optical crossover or other fiber splitting points, and AAU is connected to remote passive equipment through drop cables
(6) Taking into account the cost and maintenance, low power consumption
【Related】
There is no relevant scheme at present
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