Premises Distributed System (PDS) is an integrated universal transmission system, which is one of the important information infrastructures in modern buildings. This system uses transmission media such as twisted pairs or optical cables to transmit information within buildings and parks. It can connect phones, computers, conference TVs, surveillance TVs and other equipment to achieve comprehensive transmission of voice, data, images and other information. The following is a detailed explanation of the integrated wiring system:
1. Definition and function
Definition : The integrated wiring system is a medium that provides digitalization and intelligence for offices. It uses a series of high-quality and high-standard materials to integrate voice, data, graphics, multimedia and some control signal systems in a modular combination. Carry out comprehensive planning and design.
Function : It connects these devices to the information management system, and also connects these devices to the external communication network, providing a physical medium for system integration in modern buildings.
2. Characteristics
Practicality : The cabling system will be able to adapt to the development of modern and future communication technologies and achieve unified transmission of signals such as voice and data communications.
Flexibility : The cabling system can meet the requirements of various applications, and any information point can connect different types of terminal equipment.
Modularity : Except for the horizontal cables fixed in the building, all connectors in the integrated wiring system are basic standard parts, which are convenient for use, relocation, modification, expansion and management.
Scalability : The integrated cabling system is expandable so that new equipment can be easily added when there are greater uses in the future.
Economical : The adoption of integrated cabling system can reduce the number of management personnel and reduce the cost of changing or relocating the system in the future.
Versatility : It can adapt to various computer and network topologies that comply with international communication standards, and can support and accommodate the operation of a variety of computer networks.
3. Subsystem composition
The integrated wiring system adopts a star structure and is mainly composed of the following six subsystems:
Workspace subsystem : It is composed of the flexible cords of information sockets and terminal equipment, including assembly, connection, and expansion of cords, and building them between input and output sockets and equipment terminals.
Horizontal subsystem : Also known as the horizontal trunk subsystem, it is responsible for extending the cables of the management subsystem distribution frame from the trunk subsystem to the information socket location, usually on the same floor.
Vertical subsystem : Also known as the trunk subsystem, it is the central system of the integrated wiring system and is mainly responsible for connecting the floor distribution frame system and the main distribution frame system.
Management subsystem : connects the horizontal wiring subsystems and vertical trunk cables of each floor, is responsible for connecting and controlling other subsystems, and consists of cross-connections, interconnections and I/O equipment. It can locate communication lines and facilitate the management of communication lines.
Equipment room subsystem : It consists of cables, connectors and related supporting hardware, and is responsible for the connection of various equipment between public systems.
Building complex subsystem : Communication equipment and devices that extend cables in one building to another building, usually consisting of fiber optic cables and corresponding equipment.
4. Applications and Advantages
Scope of application : Integrated wiring systems are widely used in various types of buildings such as large commercial buildings, government agencies, schools, hospitals, and factories.
Advantages : Compared with traditional wiring systems, integrated wiring systems have the advantages of compatibility, openness, flexibility, reliability, advancement and economy, and can greatly improve the efficiency of information transmission and the intelligence level of buildings.
To sum up, the integrated wiring system is one of the indispensable information infrastructures in modern buildings. It realizes the comprehensive transmission and management of voice, data, imaging and other information through integrated and modular design. It provides strong support for the intelligence and informatization of buildings.