How to choose a suitable optical network card?

With the continuous development of network communication technology , People's requirements for network transmission rate are also increasing , For the increasing demand of network data transmission , Ethernet cards have also undergone great changes in the types of network card ports and transmission rates . From the original 100Mbps network card 、 Gradually developed to the present 100G network card , The network card interface type also covers the optical fiber and the RJ45 port . This article will introduce the optical network card to you in detail today , And help you quickly choose a suitable optical network card .

First of all 、 What is an optical network card ？
Optical network card , It refers to the optical Ethernet network , Optical network card for short , A scientific name Fiber Ethernet Adapter. Follow the Ethernet communication protocol for signal transmission , Generally, it is connected with optical Ethernet switch through optical fiber cable . According to the rate, it can be divided into 100Mbps、1Gbps 、10Gbps、25Gbps、40Gbps、100Gbps. Optical network card is usually used with optical fiber module , The optical fiber module can be divided into ：SC、LC、ST、FC And so on .SC Interface , Because of the convenience of its operation , Widely used . in recent years , Fiber to desktop （FTTD） Wide application of , bring SC The interface optical fiber network card has been popularized .
second 、 How to select an optical network card ？
Choose a suitable optical network card , It is a prerequisite and necessary condition to ensure network connectivity . Generally speaking , The following factors should be considered when purchasing optical network card ：
1. Bus interface type of optical network card
At present, the common bus interface type of optical network card is PCI-X and PCI-E, among PCI Express The interface varies according to the bus bit width , Include X1、X4、X8 as well as X16, Shorter PCI Express The card can be inserted into a longer PCI Express Used in slot . be relative to PCI-X Come on ,PCI-Express It is superior in both speed and structure .
2. Interface type of optical network card
The interface type of the optical fiber network card is distinguished according to the interface definition of the optical fiber module , Conventional optical fiber module interfaces can be divided into SC、LC、ST、FC And so on . Customers can choose to insert multimode or single-mode fiber modules according to the interface type and actual needs , Then according to the actual transmission distance , Select optical fiber module with different transmission distance to insert .
3. The number of ports of the optical network card
The port of the optical network card is mainly used to access the Internet 、 Storage and management , At present, the number of ports of optical network cards on the market includes 1/2/4/6 Number of ports , The dual port optical network card is the most common , When selecting the number of ports, you can select the optical network card corresponding to the number of ports according to the actual access number .
The speed of the optical network card
The optical network card can be divided into 100Mbps、1Gbps 、10Gbps、25Gbps、40Gbps、100Gbps, In which, under normal circumstances 100Mbps and 1Gbps Mainly used in optical fiber to desktop ,10Gbps The above optical network cards are mainly used in industrial cameras 、 We media production 、 Data center and other fields .
however , The speed of the optical network card is not constant , Specific speed requirements require users to purchase according to their actual needs .
summary ： Today, , The application of optical network card has been popularized in the network communication industry , The future comes with AI Concept 、 The in-depth learning and big data computing industries are booming , The development of optical network card will also tend to higher performance and speed .