Introduction and development of structured cabling

StructuredWiring is the basis for network implementation. It can support the transmission requirements of data, voice, graphics and images, and become a powerful supporting environment for today's and future computer networks and communication systems.

A structured cabling system is a telecommunications cabling system that supports voice, data, and image applications selected by any user. The system should be able to support transmission of voice, graphics, images, data multimedia, security monitoring, sensing and other information, and support various transmission carriers such as UTP, optical fiber, STP, and coaxial cable, supports multi-user and multi-type product applications and high-speed network applications.

Structured cabling systems have the following features:

1) Practicality: supports a variety of data communication, multimedia technology and information management systems to adapt to the development of modern and future technologies;

2) Flexibility: Any information point can be connected to different types of devices, such as computers, printers, terminals, servers, and monitors;

3) Openness: supports any network products of any manufacturer and any network structure, such as bus, Star, and ring;

4) Modularization: All connectors are modular standard parts for easy use, management, and expansion;

5) Scalability: The Structured Cabling System after implementation can be expanded, so that devices can be installed and connected easily when there will be greater demands in the future;

6) Economy: one-time investment, long-term benefits, low maintenance costs, and minimal overall investment.

　1. Introduction to structured cabling systems

With the rapid development of computer and communication technologies, network applications have become a growing demand. Structured Cabling is the basis for network implementation, it can support the transmission requirements of data, voice, graphics and images, and become a powerful supporting environment for today's and future computer networks and communication systems.

Structured cabling systems are closely related to the development of smart buildings and are the basis for the implementation of smart buildings. Smart buildings are characterized by comfort, safety, convenience, economy, and advancement. They generally include: central computer control system, building automatic control system, office automation system, communication automation system, fire automation system, security automation system structured wiring system, etc, through the design of four basic elements of a building (structure, system, service and management) and their inner connection optimization, it provides an elegant, comfortable, convenient, fast, and highly secure environment with reasonable investment and high efficiency. The structured cabling system is the foundation for achieving this goal.

　Ii. development of structured cabling

The initial implementation of structured cabling has been around for more than a decade.

In 1984, the world's first smart building was created. People used computers to monitor air conditioners, elevators, lighting, and fire prevention systems in a type building in Hatford, United States, it provides customers with information services such as voice communication, text processing, electronic parcels, and intelligence materials. At the same time, a number of companies transfer to the cabling field, but the product compatibility between manufacturers is poor.

In early 1985, the computer industry association (CCIA) proposed a proposal for building cabling system standardization. The American Association of Electronic Industry (EIA) and the American Telecommunications Industry Association (TIA) began to work on standardization.

In July 1991, ANSI/EIA/TIA568 was published as the telecommunications cabling standard for commercial buildings. At the same time, standards Related to cabling channels and space, management, cable performance, and connection hardware performance are also released.

At the end of 1995, the EIA/TIA568 standard was officially updated to EIA/TIA/568A. At the same time, the International Organization for Standardization (ISO) standard issued the corresponding standard ISO/IEC/is11801.

　The EIA/TIA568A standard is developed for the following purposes:

Establish a general-purpose telecommunication cabling system that supports multi-vendor environments;

Design and install the Structured Cabling System of the Commercial Building;

Establish and configure performance and technical standards for cabling systems.

This standard basically includes the following:

Minimum requirements for telecom cabling in office environments;

Suggested topology and distance;

Performance-dependent media Parameters;

Function allocation of connectors and pins to ensure interoperability;

Telecommunications cabling systems require over ten years of service life.

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