The range of SFP 10G (Small Form-Factor Pluggable 10 Gigabit) transceivers can vary depending on the specific model and type of fiber optics used. Generally, the range of SFP 10G transceivers can range from 300 meters to 40 kilometers over multimode or single-mode fiber optics, respectively. However, there are also SFP 10G transceivers with longer ranges, such as 80 kilometers. It's important to verify the specific range of a particular SFP 10G transceiver with the manufacturer or supplier.

hat are the SFP-10G-SR and SFP-10G-LR?

In simple terms, the SFP-10G-SR/LR is a very common type of optical module. Cisco, Huawei and other large manufacturers have this kind of production, mainly used in switches and routers, we can analyze it from the three aspects.

SFP (Small Form-factor Pluggable) refers to a small module that can be hot-pluggable. It can be regarded as an upgraded version of GBIC. It only sizes as the thumb and can greatly increase the port density. The SFP complies with the IEEE802.3, SFF-8472 protocol and can use digital diagnostics through I2C.

10G stands for its maximum transmission rate of 10.3 Gbps. It is suitable for 10 Gigabit Ethernet. 10G optical networks have become popular in telecommunication networks. 10G switches are also being used by more and more people.

SR and LR represent the transmission distance of the optical module. SR, LR, LRM, ER and ZR are more common in the 10G IEEE standard. The transmission distance they represent is from short to long. You can check it by the following table.

Comparison of appearance

Let us first look at the appearance of the SFP-10G-LR-S optical module and the SFP-10G-SR-S optical module. They are packaged in the form of SFP+ and can be plugged into the SFP+ port of the switch and are also hot-pluggable. The overall size is also the same. Because of different manufacturers, there are differences in the label position and interface design of the two optical modules, but the components are the same and there is no difference between them.