aui ethernet

Encapsulate the communication as a class "The features of the program have advantages:Traditional wording when the bar code scanning head stop, abnormal power, network anomalies, communication terminal, the program can not resume the connection, the loss of data caused by failure, I write the program, whether the scan head power off or the production line restart, can be the first time to restart the connection and communication, stability is very good.This is also in a friend old program consta

Yan Hua technology recently launched the latest Ethernet Media switch product ADAM-6521S. A ADAM-6521S with a Single-Mode Optical Fiber port can be used as an industrial converter with a maximum transmission distance of 15 km. You can also use four industrial 10/100 Mbps Ethernet ports as a switch.Like other modules in the ADAM series, ADAM-6521S can be installed in three ways: DIN rail installation, wall m

I. Token Bus ARCNET is a local area network developed by datapoint in 1977. It is still widely used,And uses RG-62 coaxial cable as the NetWare LAN cabling system. ARCNET, which is exactly the same as ibm3270The cables connecting the terminal and the IBM host are the same, so this network is widely used in the Use base of a large number of IBM hosts.ARCNET can now use twisted pair wires and optical fiber cables. The new arcnet plus Speed has increased from 2.5 MB/STo 100 Mb/s (when using optical

Today, we introduce some common basic operations of Cisco devices, such as creating VLANs, binding network cables, doing trunks, using three-layer switching, and so on.This is today's topology diagram: Two three-layer switching, two PCs, respectively, add vlan10 and 20, two three layers to do network redundancy, and finally achieve two PC communication, very simple, but the use of an experiment:650) this.width=650; "src=" http://s3.51cto.com/wyfs02/M00/74/4E/wKiom1YYvWzg69qyAACaxI7J60E493.jpg "s

In the use of computers, often due to network configuration errors caused by the inability to surf the internet, affecting work, learning and entertainment, this situation in fact, as long as the Ethernet can be re-enabled. For the Novice computer, it is necessary to master the skills of network configuration. Here is a brief introduction of how to deal with this problem quickly under the WINDOWS8 system. Processing method: 1, right click on the des

Web3 Javascriptðappapi In order for your application to work on the etheric square, you can use the objects provided by the Web3.js library WEB3. At the bottom, it communicates with the local node through RPC calls. The web3.js works with any of the etheric square nodes that expose RPC layers. WEB3 contains ETH objects-Web3.eth (dedicated to the Ethernet block chain interaction) and Shh objects-web3.shh (for whisper interaction). Over time, we'll int

What are the advantages of a small pluggable (SFP) port for a Gigabit Ethernet switch? How do I connect the four SFP ports of a d-link DGS 1248 t smart switch? I think the main advantage of the SFP port is the flexibility to connect to the network. The SFP port is a hot-swappable input/output device that can be plugged into a Gigabit Ethernet port or slot to connect the port to the network. SFP ports can

TCL Network Equipment Co., Ltd. TCLS4109SFB, is a simple network management switch, is a team-level network equipment, on the basis of the mature chip scheme, specifically for the community users of broadband access to sudden high traffic, diversified natural environment conditions and other characteristics of the optimization design, so as to obtain small volume, Good sealing and wide operating temperature and humidity range provides simple and efficient building solutions for Community FTTB

1. Frame InjectionFor an introduction to Ethernet frames and raw sockets, refer to a previous post that uses raw sockets for Ethernet frame sniffing. Features of frame injection:　　 Packets from the original data format can be injected into the network. Very powerful in analog network response. The original socket package structure is not malleable.　Random Injection If you can ra

WIZ550S2E is a gateway module that provides RS-232 to TCP/IP protocol functionality. And can be based on TCP/IP and Ethernet network equipment management, remote measurement, simply use the RS-232 serial port to connect the current device. In other words, WIZ550S2E is a protocol converter that sends data through the serial port in TCP/IP data format, and vice versa.Characteristics Plug and Play serial to