What is the difference between the electric port and the optical port of the gigabit optical fiber network card?
Gigabit optical fiber network card is different, mainly reflected in the interface, purpose, chip and other aspects. According to the interface type, there are two kinds of gigabit optical fiber network card: electric port and optical port. Many users pay more attention to the difference and purpose of the two. The electric port of gigabit optical fiber network card refers to the RJ-45 and other twisted pair interfaces (sometimes including coaxial cable port) on servers or switches and other equipment ）It mainly uses electricity as the carrier medium of information and is suitable for small enterprises with short distance transmission. The optical interface of gigabit optical fiber network card refers to various gigabit optical fiber interfaces such as SFPs on servers or switches (at present, it is mainly based on the SFPs), which takes light as the carrier medium of information and is suitable for medium and large enterprises with long-distance transmission.
In fact, the biggest difference between the two is the efficiency and packet loss rate in the transmission distance. Because the gigabit optical fiber network card of the electric port uses crystal head material, there are still problems in the transmission distance and stability. Compared with the gigabit optical fiber network card of the optical port, there are also certain packet loss and loss.
However, both the optical interface gigabit optical network card and the electrical interface gigabit optical network card will support the transmission protocols such as 100M Ethernet and Gigabit Ethernet, with the transmission rate of 10 / 100 / 1000Mbps (adaptive).
