By Admin / 20 Oct 23 / 0 Comments VLAN ” Virtual LAN 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... Read More By Admin / 20 Oct 23 / 0 Comments The Calibration of the Optical Power Mete 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 ... Read More By Admin / 11 Oct 23 / 0 Comments The Driving force of VoIP 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 ... Read More By Admin / 11 Oct 23 / 0 Comments Relevant Technical Standards 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 ... Read More By Admin / 26 Sep 23 / 0 Comments The Basic Transmission Process of VoIP The traditional telephone network transmits voice by circuit exchange, and the required transmission broadband is 64 k bit/s. The so-called VoIP is based on IP packet switching network as the transmission platform, The analog voice signal is compressed, packaged and a s... Read More By Admin / 26 Sep 23 / 0 Comments Introduction to SFP Module Error Code Test SFP (Small Form-factor Pluggable) is an upgraded version of GBIC (Gigabit Interface Converter), which is an interface device for converting gigabit electrical signals into optical signals. The design can be used for hot plug, and the SFP interface is widely used in switc... Read More << < Previous 891011121314 Next > >> Page 11 / 78