A base station has three sectors, each equipped with one colored optical module. Bidirectional transceivers are required for the three sectors, totaling six colored optical modules.
Designed for short-range connectivity, the 25GBASE-SR module operates over OM3 and OM4 multimode fiber using 850nm VCSEL (Vertical-Cavity Surface-Emitting Laser) technology.
The base station is logically divided into two parts: BBU and RRU. The RRU is responsible for signal transmission and reception, and the BBU is responsible for signal processing.
In this article, we will analyze why 25G optical modules are needed for 5G forward transmission, how big the market for 25G optical modules, and what solutions are available for 25G
This customer adopted the Open RAN (Radio Access Network) architecture and deployed a leading RAN supplier''s baseband unit (BBU). This solution is equipped with up to 36 10/25G
In 4G network, the optical modules used to connect BBU and RRU are mainly Gigabit to 10 Gigabit optical modules; in 5G network, the optical modules used to connect BBU and RRU are mainly 25G
In 4G networks, the optical modules used to connect BBU and RRU are mainly gigabit to 10Gbit optical modules. In 5G networks, the optical modules used for connecting BBU and RRU are mainly at 25G
⚫ High reliability, supporting outdoor application environments in wireless scenarios The key technologies of 25G tunable TOSA include the high-performance optical chip, compact
The transmission carriers connecting the BBU and RRU devices are optical modules and optical fibers. In 2/3/4G networks, it is generally sufficient to use 10Gbps optical modules for CPRI interfaces.
Currently, 5G of the bearer network mainly uses 25Gbps optical modules. Next, ETU-LINK will introduce the types of optical modules used by 10G SFP+ and 25G SFP28 optical modules
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