Future development trend of indoor wiring cables

As standardization organizations increasingly feel that they should adopt more general protocols in their work, they are faced with new technologies (such as enhanced Category 5 and 6 cables, Gigabit Ethernet, escalated field testers, fireproof cables, etc.) ) Accelerated the pace of establishing alliances between countries and international organizations. There are more participants in standardization work, such as the International Organization for Standardization (ISO), and the cooperation between them has become increasingly harmonious. This cooperation has led people to have a more in-depth understanding of certain viewpoints, and these opinions have affected Technical specifications including cables and devices. For example, far-end crosstalk and other phenomena have become important indicators for measuring transmission performance.

We now have the Telecommunication Industry Association (TIA), the Electronic Industries Alliance (EIA), and the cable standardization organizations that belong to each country. In fact, the cable industry is now globalized. Based on this fact, a universal cable standard is about to be introduced from the perspective of suppliers and consumers. There will be a "bloody" before this, but it is hoped that the new standard will combine the advantages of various standards.

Gigabit Ethernet is gaining momentum on some backbone networks. Gigabit Ethernet is gaining momentum and applications are growing rapidly on high-speed fiber-optic and copper-core cable backbones and private networks. In addition, in order to adapt to a wider range of applications, a new generation of Ethernet LAN protocols will be transferred to the desktop. This development is facilitated by the increase in desktop processing power and processing speed, and the increase in requests for rapid response from users across the network.

Gigabit Ethernet (or the implementation of 1000Base-T on copper-core cables) can theoretically be run on today's widely installed cable systems, including on cable systems that have been widely installed worldwide, including Including in the world has been widely used high-speed local area network cabling system, namely: unshielded (UTP) Category 5 twisted pair. Contrary to what is easily misleading in the market, Gigabit Ethernet designs operate in the 100 MHz frequency range. As enhanced Category 5 cabling provides higher performance, it will be the best choice for future installations of Gigabit Ethernet.

The performance standards for Category 6 UTP cable are expected to accelerate the widespread adoption of Gigabit Ethernet in the office. "Compared to 10Base-T and even 100Base-T, 1000Base-T has made a significant leap in network performance. Category 6 cable will be more suitable for l000Base-T and 100Base-T Ethernet. As the two organizations TIA and ISO All of them maintain close cooperation with the IEEE-8022.3 Gigabit Ethernet Committee, and therefore, they can guarantee backward compatibility with existing systems. Therefore, both 10Base-T and 100Base-T can operate on 1000Base-T networks.

Application of Category 5 Cables in Homes Residential cables will undergo a tremendous development process, and the digital revolution will sweep home electronic devices.

With the advent of the Internet as a viable home media and the gradual shift of the workplace from the company's office to the home's small office, the residential cable cabling system will evolve into a high-volume, high-reliability cabling system. Most home users can use the Internet for education and entertainment purposes. By 2002, it is expected that at least 100 million people will work at home in the world.

Residential/home offices need to connect computers, printers, modems, Ethernet, Integrated Services Digital Network (ISDN), and require high-speed, broadband digital and communications transmissions. In order to solve this problem, considering the cost and performance factors, Category 5 UTP cables and related equipment are obviously more reasonable choices. You can use a Category 5 cable to create a virtual home LAN. Home users can simply plug in any socket in the room and use the bandwidth and enjoy any kind of service on the LAN. Today, many major cable manufacturers provide Class 3 cables, Category 5 cables, and coaxial cables to home users.

50/125 micron fiber Currently, many end users and manufacturers have shifted their interest to 50-125 micron multimode fiber. In North America, most users have adopted 62.5 micron fiber because it has been approved by the TIA and sold in large quantities in the market. However, because 50-micron fiber has a technical advantage over 62.5-micron fiber and is less expensive, it has its inherent advantages.

62.5/125 micron fiber can be optimized when used with light emitting diodes. However, studies have shown that when other light sources (such as VCSEL's cavity surface laser transmitters) are used with multimode fibers, 62.5-125 micron fibers sometimes show limited performance, while 50-125 micron multimode fibers do not. This limitation.

In fiber optic cable systems with horizontal backbone cabling, more and more 50-125 micron fiber optic cables and ancillary equipment are being used to replace 62.5/125 micron fibers or as a supplement. 50-micron fiber can support Gigabit Ethernet and can transmit over 500 meters (recommended value) for both long and short wavelength light sources. The emergence of low-voltage cable systems in the United States, the traditional sound, video and security systems will be incorporated into the low-voltage cable structure. However, cable installers may find this process will not be successful because all of these manufacturers have their own different cultural backgrounds.