How many models are there of 25G SFP28 optical module?

A 25 Gbit/s optical module is an optical module with a transmission rate of 25 Gbit/s. It is mainly used in 25 Gbit/s Ethernet and 100 Gbit/s Ethernet. Packaged as SFP28, its function is used for the interconnection of data center servers and switches.

With the rapid development of the Internet, cloud computing and big data, the construction of IT infrastructure data centers is further accelerated. 25G SFP28 SR optical module and 25G SFP28 LR optical module are favored by the majority of data center users because they can provide cost-effective 25G and 100G network solutions. Below we will introduce the next 25 SFP28 exactly how many models?

The 25G SFP28 conventional optical module includes SR,LR, and ER. The 25G SFP28 SR optical module is a 25G optical module with an operating wavelength of 850nm. The internal emitter of the 25G SFP28 SR optical module is a vertical cavity surface emission laser, so it needs to be used together with the 50/125µm OM3/OM4 multi-mode fiber. The transmission range is 70 meters when used with OM3 and 100 meters when used with OM4. The 25G SFP28 LR and 25G SFP28 ER are single-mode optical modules and must be used together with the single-mode fiber jumper OS2.

The 25G SFP28 color optical module includes CWDM SFP28 optical module and DWDM SFP28 optical module. The working wavelength of the 25G CWDM SFP28 optical module is 1271-1331nm. It is mainly applied in 5G front-transmission bearer network and can be transmitted up to 10km through single-mode optical fiber OS2.