Optical fiber communication technology plays an important role in the information transmission, which greatly improves the data transmission speed and becomes the main communication transmission technology in China. Optical module is a very important component in the optical fiber communication technology, and we often see the parameters of optical module that contains SFP-10G-SR. For professionals in the field of optical communications will clearly understand the meaning of it, but for some novice and layman, it is possible to can’t fully understand. So let Cozlink (cozlink.com) to explain in detail what SFP-10G-SR is.
What is SFP-10G-SR? In short, the SFP-10G-SR is a very common model of optical module, Cisco, Huawei and other manufacturers will produce it, and it mainly used in switches and routers, we can divide it into three elements to introduce.
SFP (Small Form-factor Pluggable) refers to the small hot-swappable packaging module, it can be seen as an upgraded version of GBIC, and the same size as the thumb, it can significantly improve the port density. The SFP complies with the IEEE 802.3, SFF-8472 protocols and is capable of using digital diagnostic functions by I2C.
10G stands for its highest transmission rate can reach up to 10.3Gbps, and applicable to 10 Gigabit Ethernet. 10G optical fiber network has been popular in the telecommunications network, 10G switches are also being used by more and more people.
SR represents the transmission distance of the optical module. SR, LR, LRM, ER and ZR are the most common used in the 10G IEEE standard, they stands for the transmission distance from short to long, you can check out the following table.
|10G IEEE standard||Description|
|10GBASE-SR||300m or 400m|
|10GBASE-LR||Supporting 10km network transmission|
|10GBASE-LRM||Supporting 200m network transmission|
|10GBASE-ER||Supporting 40km network transmission|
|10GBASE-ZR||Supporting 80km network transmission|
There are a large number of manufacturers on the market, which is representative of Cisco and Cisco switches also occupy a large market share. However, in the process of actual choice, in addition to IEEE standards and transmission distance, we also need to consider a number of other factors, such as compatibility and cost.
There are many third-party manufacturers on the market produce the optical module which compatible with Cisco SFP 10G SR, but not all of them have excellent compatibility, may not be able to use in SFP connector of switch, so you must ensure that it is compatible with the switch when purchase.
The second factor is the cost, and many users will choose the original optical module, of course, this is the best choice in the case of sufficient funds, The SFP-10G-SR optical module from Colink (cozlink.com) is getting more and more popular, because of its excellent quality, high performance and low price.
This article is a simple answer to the problem of what SFP-10G-SR is. If you want to learn more about optical communication, welcome to contact or leave a message for Cozlink (cozlink.com).