A4H254-8F8T port

A4H254-8F8T

Ethernet switch (A4H254-8F8T) Brand :Enterasys Additional Information Port :8 x 10/100 + 8 x 100BASE-FX + 2 x Gigabit SFP Authentication mode :RADIUS, Secure Shell V.2 (SSH2) Nominal voltage :AC 120/230 V Required frequency: 50-60 Hz Interface: Ethernet 100BASE-FX, Ethernet 10BASE-T / 100BASE-TX, RS-232 Function: Redundant power system (RPS) connector

“Port” is the free translation of English port, which can be considered as the outlet of communication between the device and the outside world. Ports can be classified into virtual ports and physical ports. Virtual ports are invisible ports in computers or switch routers.

For example, port 80, port 21, port 23 and so on in the computer. Physical ports, also called interfaces, are visible ports, such as the RJ45 network port on the backplane of a computer or the RJ45 hub of a switch router. Phones using RJ11 jacks also fall under the category of physical ports.