There are many brands in the optical fiber and cable industry, and the product quality is uneven. Consumers will always face the problem of choice when shopping, and they don't know what brand to buy. How to choose optical fiber and optical cable? What brand of optical cable is good? What is more worth buying? With the support of brand data provided by CNPP, Bian Xiao has carefully sorted out the brands of optical fiber and cable that are worth buying, and at the same time provided relevant purchasing skills for your reference to help you choose satisfactory optical fiber and cable brand products. What brand of optical cable is good? Changfei YOFC is the world's leading supplier of optical fiber preforms, optical fibers, optical cables and integrated solutions. It mainly produces and sells various standard optical fiber preforms, optical fibers and optical cables widely used in the communication industry, and produces various optical modules, special optical fibers, active optical cables, submarine optical cables and other products according to customer needs. Chang Fei has more than 40 subsidiaries around the world, providing various optical fiber and cable products and comprehensive solutions, and providing quality products and services to more than 70 countries and regions around the world. Hengtong Optoelectronic HTGD China is a national innovative enterprise in the fields of optical fiber network, smart grid, big data Internet of Things, new energy and new materials, focusing on optical fiber communication and power transmission. Its products serve the communication, electric power, energy, marine, aerospace and global communication energy Internet system integration projects in more than 65,438 countries around the world. Top 500 Chinese enterprises and China 100 private enterprises have established 1 1 overseas industrial bases and more than 40 marketing technical service companies, covering more than 100 countries and regions. Fiberhome Enterprise, founded in 1999, is an information and communication network product and solution provider, covering optical network, broadband access, optical cable, optical wiring, services and terminals, system integration, software and services. Fiberhome has established a complete sales and service system in more than 50 countries around the world, forming a 1 1 global delivery center with products and services covering more than 90 countries and regions. Corning Corning Company was established in 185 1, a global leader in special glass and ceramic materials and a leading enterprise in optical fiber innovation. It invented the first low-loss optical fiber in the world in 1970, and was the first enterprise to develop a variety of new optical fiber products. From 1998, Corning began to provide optical fiber, optical cable, hardware and equipment products to the China market, and installed optical fiber products over 5 billion kilometers worldwide. Zhongtian Technology ZTT Zhongtian Technology was founded in 1992, and started with optical fiber communication. Specialized in providing multi-dimensional infrastructure services such as cables, components, devices and antenna feeds for network construction, including various prefabricated rods, optical fibers and optical cables. Zhongtian Technology has 89 subsidiaries and 54 overseas offices around the world, and its products are exported to 147 countries and regions around the world. Fortis, founded in 1987, is a private high-tech entity manufacturing enterprise, a global leader in the optical fiber communication industry of Internet information basic transmission materials, mainly engaged in the whole industrial chain of electronic information optical fiber communication and energy and power cable transmission, and is the maker of China optical fiber preform technical standards. Fortis Group is a well-known optical communication enterprise in the world, and it is the first enterprise in China to obtain the intellectual property patent of optical fiber preform full synthesis technology. More optical fiber and cable brands are recommended >> Tips for choosing optical cable What's the difference between coaxial cable, twisted pair cable and optical cable?
In network hardware, there is also a network transmission medium that can not be ignored, which is usually called network cable. At present, common network cables are divided into thin coaxial cable, thick coaxial cable, twisted pair cable and optical cable. What's the difference between them?
1, coaxial cable
Coaxial cable is a transmission medium that many friends are familiar with. This is a kind of cable, and its central copper conductor is wrapped by multilayer insulated wires. Its biggest characteristics are strong anti-interference ability, stable data transmission and low price, so it was once widely used, such as closed-circuit television lines. Coaxial cable was widely used in the past, mainly because the bus structure network composed of coaxial cable has low cost, but the damage of a single cable may cause the whole network to be paralyzed and difficult to maintain, which is its biggest drawback. Coaxial cables in Ethernet applications are mainly divided into thick coaxial cables.
2, twisted pair
Twisted pair is a kind of flexible communication cable, which contains several pairs of insulated copper wires. It is characterized by its low price, so it is widely used, such as our common telephone line. According to the different maximum transmission rate, twisted pair can be divided into three types, five types and more than five types. The speed of class 3 twisted pair is 100Mb/s, class 5 twisted pair can reach 100 MB/s, and class 5 twisted pair can reach 155Mb/s or above, which can meet the demand of multimedia data transmission in the future. It is recommended to adopt class 5 or even class 5 twisted pair. Twisted pair can also be divided into shielded twisted pair (STP) and unshielded twisted pair (UTP).
3. Optical fiber cable
Optical cable is a new generation of transmission medium. Compared with copper medium, optical fiber has been greatly improved in security, reliability and network performance. In addition, the bandwidth of optical fiber transmission greatly exceeds that of copper cable, and the maximum connection distance supported is more than two kilometers, which is an inevitable choice for building a large-scale network. Because optical cable has the advantages of good anti-electromagnetic interference, strong confidentiality, high speed and large transmission capacity, it is also expensive and rarely used in home occasions. At present, there are two kinds of common optical fibers, namely single-mode optical fiber and multimode optical fiber (the so-called "mode" means that a beam of light enters the optical fiber at a certain angle). Multimode optical fiber is generally used for network connection in the same office building or relatively close area. However, single-mode fiber has higher data quality and longer transmission distance, and is usually used to connect office buildings or geographically dispersed networks. If optical cable is used as the network transmission medium, it needs to add optical transceiver and other equipment, so the cost is high and it is rarely used in general applications.
Optical fiber and optical cable knowledge class >>
Buy smart routers, server cabinets, power cats, wireless ap, mobile WiFi, network cards, distributors, servers, print servers, switches, optical transceivers, set-top box receivers, routers, network cards, and TV boxes. When buying optical fiber and cable, don't blindly follow the trend just because the price is cheap. Choosing a well-known brand ensures not only the quality but also the after-sales service. Of course, the pursuit of brands is not necessarily the pursuit of high prices. We can choose brand-name products with different economic levels and different prices. Friends who choose online shopping products should look for the flagship store of the brand and be foolproof.