1, electrical port: electrical port is the server and the network of various twisted-pair interfaces such as RJ45 collectively, the reason is that these ports are using electricity as a carrier medium for information, but sometimes it will also include coaxial cable port.
2, optical port: optical port is the server and the network to a variety of fiber optic ports collectively, it is to use light as the information bearing medium. Optical port may contain a variety of fiber optic interfaces from ST to SFF (miniaturized fiber optic connector, mainly MTRJ and LC).
3, network interface: network interface means network interface. Network interface refers to a variety of interfaces for network equipment, we are now using the network interface for the Ethernet interface.
1, fiber optic interface is used to connect the physical interface of the fiber optic cable. The principle is to use the light from the light dense medium into the light sparse medium so that the total reflection occurs. Usually there are SC, ST, FC and several other types, they are developed by NTT Japan.
2, FC is the abbreviation of Ferrule
Connector, its external reinforcement is the use of metal sleeve, fastening for the screw fastener. ST interface is usually used for 10Base-F, SC interface is usually used for 100Base-FX.
3, the electrical port is relative to the optical port, refers to the physical characteristics of the flame arrester. Mainly refers to copper cables, including ordinary network cable and RF coaxial cable, is to deal with the electrical signal.
4, the current use of common network interfaces have 100 megabit electrical port and gigabit electrical port and so on. Simply put, the electrical port is an ordinary twisted pair (Twirst
Pair) interface, the general rate of 10M or 100M, part of the support for 1000M. electrical port of the longest distance of 100 meters. The optical signal is transmitted on the cable of the optical port, while the electrical signal is transmitted on the cable of the electrical port, such as high level (for 1), low level (for 0).