subject: Shanghai International Studies University of cabling solutions - wiring-IT industry [print this page] Shanghai International Studies University of cabling solutions - wiring-IT industry
A structured cabling system 1. Foreword Today's society, information has become a very critical resource, it must be accurately and quickly transmitted in a variety of communications equipment, data processing equipment and Display device Between. For this reason, companies, enterprises, government departments will be required with the fastest speed of these communication and information systems to adjust and improve, and according to need to configure into a variety of different structures.
In the country, not only is the design of some new buildings, often still used in the past, those routing technology, resulting in various systems of wiring can not be compatible, it is difficult to adapt to new technology, and the crowded pipeline unbearable, and the wiring on investment is often repeated. This situation, but also with companies, enterprises, government departments expand, update equipment, personnel changes, Office Environment changes, and get worse. Any additions, changes, may lead to global changes not only affect staff productivity, the company, enterprises, government departments, operators also have a negative impact. Especially with the ISDN (Integrated Services Digital Network) the emergence, application, promotion, the original use of the cabling system will be unable to meet the requirements.
Therefore, to seek a more rational, more optimization, elastic strength, stability and scalability of a good routing technology, has become a top priority. It not only meets current needs, more importantly, on the wiring system to meet future challenges.
Structured cabling system is introduced in this context was to receive a wide range of cabling technology, a one-time wiring it can invest a considerable period of time in future, all the wiring problem.
Recent years, the rapid development of information processing systems, information transmission speed, convenience, security and stability in a high reliability. In the new office in the building Network Requirements for different internal network devices, hosts, terminals, PC and external devices, may constitute a flexible topology, there is sufficient system capacity expansion, with the country's external public network connected with external sources of information to form a comprehensive multi-channel information access system. In short, it is necessary to adapt to current information processing needs, while giving full consideration to the future development trend of information systems.
Structured cabling system that will have the following characteristics:
Practicality: after the implementation of building automation system and all its lines of communication subsystems and interfaces to meet international standards. Has a good user interface and network management functional, easy to use.
Flexibility: the connection of any part of the system is flexible, from the physical connection to the data communication, voice communication, intelligent control devices are not or very little connection to the physical location and the equipment by type of limits.
Modular: all the appropriate accessories for connecting devices are modular standard parts, do not need to have plenty of expertise in these areas, we can connect these devices.
Extensibility: As all system infrastructure (materials, components, telecommunications equipment) have adopted international standards, therefore, regardless of computer equipment, communications equipment, intelligent control equipment with the technology, the future may be very convenient to be connected to the building automation system to go.
Reliability: The system used in all parts of the high-quality materials, the components devices and careful construction and testing to ensure that all aspects of the system is reliable.
2. Structured cabling background: (1) Comparative life Software : 18 months PC Computer: 2 years Host: 10 years Cabling system: 16 years Buildings: 50 years Shows that the lifetime of the cabling system is the only comparable with the life of the building.
(2) network investment Cabling system can support almost all network equipment and is the basis for the operation, which costs only about 5% of total investment in the network.
(3) the movement of persons within the building
Increase, mobile, and change is inevitable. 40% each year to the office staff will be involved in the movement. If you do not use the structured cabling system will affect efficiency. Structured cabling system can make to increase, moving and changing quickly and efficiently.
(4) loss of network failure Loss of network failure USD 1,000 per hour to 50,000 dollars. The annual average of 20 times a network failure occurs, of which 70% are caused by the cabling system. A stable and reliable cabling system is essential.
3. Structured cabling system features and advantages:
(1) structured cabling system features A) systematic works - is a complete structured cabling systems engineering, including the transmission media (twisted pair (copper) and optical fiber), connect the hardware (including Jumper frame , Modular jacks, adapters, tools, etc.) as well as installation, maintenance, management and engineering services.
B) Modular structure - structured cabling system design allows the additional cabling and with minimal changes (if necessary) to achieve the system can be moved, expanded and re-install.
C) independent of the application - as CCITT seven agreements lowest physical layer, structured cabling system constitutes a basic link, the same as an information channel to connect the various buildings and outdoor low-voltage electrical and electronic equipment. The information transmission path of various sensors to provide information and comprehensive data.
D) flexibility - A structured cabling system design is compatible with voice and data communications applications. Thus to reduce the demand for the traditional pipeline, while providing a structured design to achieve and manage the system.
E) technological advance - A structured cabling system allows the user to the possibility of using a variety of possible new technologies. This is because the structured cabling system independent of the application, and future applications can be considerable redundancy.
(2) advantages of structured cabling system
A) Economic: the use of structured cabling system means that with the initial installation costs to reduce the cost of the construction of the permanent operation, to obtain good long-term economic benefits.
B) Efficiency: the growing cost of the building to run a variety of building management systems is a major concern. Structured cabling system installed system can reduce this cost. This is because
