harmony cable

1. Overview With the development of information society, network technology has become more and more complex, and as the cornerstone of the network, keel-network cable appears more important. In the current network, there are three kinds of cable media: Optical cable, coaxial cable and digital twisted

Basic wire and cable knowledge The manufacturing of wire and cable is completely different from that of most mechanical and electrical products. Mechanical and Electrical Products are usually assembled into parts, multiple parts are installed into a single product, the product is measured in the number of units or pieces. Wire and cable are measured in length. A

The local area network is the individual computer or the terminal, uses the communication line to connect each other, follows certain agreement, carries on the information exchange, realizes the resource sharing. Among them, communication lines, that is, transmission medium commonly used: twisted-pair, coaxial cable, optical fiber and so on. From the cost-performance and maintainability, most LANs use unshielded twisted pair (utp-unshielded Twisted Pa

CATV Broadband Integrated Information network based on 3COM company CATV Access Network platform is a successful implementation of cable TV, data communication and network telephone "three nets in one" on the 750MHz bandwidth fiber-optic coaxial hybrid network (HFC). The open television, telephone, computer line of the public Information network, the main technical indicators to reach the world's advanced level. Now, there are 35 sets of TV programs d

high-speed optical fiber cables need to be correctly selected as appropriate testing instruments. Laser and LED The laser emitting power is very high, and the emitted light is very concentrated. The light emitted by LEDs is usually scattered and the power is low. Compared with LEDs, lasers can send high-speed pulses, which is also the main reason for using lasers in high-speed networks. For Single-Mode Optical Fiber Links, Fabry-Perot laser light sources are usually used. The new VCSEL (Vertica

When dealing with computer networks, it is inevitable that network cables should be used frequently. In fact, the production of Network cables is very simple, that is, to insert the 4-to-8-Core Cable of twisted pair wires into the crystal head according to certain rules, therefore, the materials required for the production of such network cables only need twisted pair wires and crystal heads. The required tools are also relatively simple. Generally, o

In the installation of the project, due to the limited conditions, are on-site production of network cable, generally do not use instrumentation, only through the pilot indicator to determine whether the guide, but the indicators can not really reflect the quality of the network cable, the production of some of the soft fault is not found, after a period of time will gradually exposed, The following are som

At present, lan construction has been very common, and the integration of Ethernet cards on computers is already a standard configuration. The traces of LAN are everywhere around us. A simple small LAN composed of several computers in the family, large Internet cafes in public entertainment venues, campus networks on campus, office networks in the company, and so on are all examples of local area networks. Although they have various networking modes, the current LAN networking mode is still domi