The difference between optical fiber and network cable: multi-angle understanding

2019-12-18  35

The appearance of the optical fiber cable and the network cable is similar. They are both used in network communication related aspects. What are the specific differences?

1. Different materials: The material of most optical fibers is glass fiber, which is an abbreviation for optical fiber. It is used as a light transmission tool. The transmission principle is "total reflection of light." The network cable is a copper core. Three forms of lines. The differences in materials also lead to differences in the technical indicators of the two.

2. Transmission distance: The transmission distance of network cables is theoretically within 100 meters. Single-mode fiber can achieve 10-20km transmission, and multi-mode fiber can achieve 2km up to 3km information transmission, which is much higher than network cables.

3. Function: The existence of optical fiber is to accelerate the transmission speed of network information. It exists as an information transmission tool, and the network cable is used to connect devices to ensure the communication between devices.

4. Application scenario: The network cable is used for communication transmission, which can provide users with interactive multimedia information such as communication, data, and views, such as network interactive games, remote video surveillance, and work conference videos. Network cables are used to connect devices, such as engineering cabling, network connections, device port connections, and so on, such as hubs, firewalls, and switches.

5. Product properties: The network cable is the carrier of information transmission and a kind of physical medium; optical fiber is the abstract concept and the transmission rate of dynamic information.

6. Existence mode: The optical fiber exists in a virtual way, and the optical fiber cable is the carrier of its existence; the network cable is the actual cable, and there are specific physical objects.

Some users think that there are 8 cores in a network cable, in fact, only 4 cores are used, but there are 48 cables in a 48core fiber. In fact, the signal transmission has nothing to do with the number of roots. Generally, a group of two optical fibers is equivalent to a network cable, and a 48core optical fiber cable is equivalent to 24 network cables.