News

Before understanding the VLAN isolation function of the switch, we first understand the Ethernet switch: Ethernet switch is a switch based on Ethernet data transmission. Each port of the Ethernet switch can be connected to the host, generally working in full-duplex mode,...

 Optical fiber transceiver is a flexible and effective photoelectric conversion device that plays an important role in multi-protocol photoelectric hybrid LAN. Now, in order to better detect and eliminate link faults, some optical fiber transceivers have link fail over (...

The VLAN (Virtual Local Area Network) is named in Chinese. A VLAN divides a physical LAN into multiple logical LANs, and each VLAN is a broadcast domain. Hosts in VLAN can communicate with messages through the traditional Ethernet communication mode, but between hosts in...

For optical communication, testing the optical power is an essential step in building the optical environment. The level of optical power affects the performance of the receiving device. Too low light power will make the device impossible to identify, and too high light ...

Due to many developments and technological breakthroughs in the relevant hardware, software, protocols and standards, the widespread use of VoIP will soon become a reality. Technological advances and developments in these areas have contributed to the creation of a more ...

In order to implement multimedia applications on the existing communication network, the International Telecommunication Union (ITU-T) has developed the H.32x multimedia communication protocol series. The following is a brief description of the main standards H.320, the ...