1, cable selection should be based on system requirements, technical performance, investment estimates and other comprehensive consideration. In the cabling system should first determine the use of cable categories and cabling composition structure (shielded cable, non-screened cable, fiber optic cable, or will they be joined together to use),
One of the high-end users, they have high requirements for the processing and transmission speed of various types of information, the stability of the product and the system, safety is very important to the strong capital to the media, Stadiums, transportation and hospitals and other units as a representative. Its cabling system more than six categories or higher system, ultra-five such as T1 lines with a total data transfer rate of up to 1.544Mbps, there are special needs to consider the use of optical fiber. For example, the media building audio / video transmission, the frequency of the information flow and field strength requirements are high, and the existence of radio interference sources are more, in order to avoid interference between the transmission line signals and electronic equipment, more shielding and fiber optic cabling system. Another example of the competition venue cabling system to pay attention to three aspects:
In the rapid development of science and technology today, if you do not take into account the development, it is likely that the completion of the cabling system, its products and performance has lagged behind the user's needs. That is not the choice of the products ahead of time is necessarily correct
To consider the stadium plane area is relatively large, should be set up more than one telecommunications room, and the telecommunications between the best use of fiber-optic cable intercommunication;The second is the intermediate users, mainly dealing with integrated data, sound or multimedia information, with a certain scale, but the information transmission speed requirements are not high, to the mid-range office buildings, factories, schools and intelligent District as a representative of the mid-range office buildings, factories, schools and intelligent neighborhoods. This type of building is generally in the wiring to fiber optic backbone, horizontal cabling using ultra-five copper cable (or six), voice lines using more than three types of large logarithmic copper cable. For example, the integrated wiring in the school building is a complex of the overall wiring, more to take into account the construction of the network backbone fiber optic. In addition, the school has more functions, there are teaching buildings, experimental bases, public lecture halls, libraries, science museums and student dormitories, etc., but the overall demand for the network is relatively not too high, so most of the level of the system will choose the super Category 5 cable. Of course, it does not exclude some individual places will also take into account its needs, the level of the use of Category 6 cables, such as science museums and so on.
Ultra Category 5 systems can support the operation of Gigabit Ethernet, and different vendors of Ultra Category 5 systems can be interoperable; Category 6 price is more expensive than Ultra Category 5, but its bandwidth is expanded by 25%, the transmission rate has a significant increase in Category 6 systems are specialized, each vendor's components have their own unique design and performance indicators, the possibility of interoperability between different vendors of the components is very small, the components of the indicators are still under study; the use of Category 6 cables will also be used in some individual places, such as science museums. In the study; the use of Category 6 cables should choose the same level and the business of the production of plug-in devices, because Category 6 is a specialized part of the products of various manufacturers can not yet be interoperable.
IT168 application of ultra-five unshielded twisted-pair cable, ultra-five shielded twisted-pair cable, category six unshielded twisted-pair cable, category six shielded twisted-pair cable, panels, modules, patch panels ..... ...AMP, CompuCom, NetLink and many other brands, in the end, how to choose among the many cabling products suitable for your needs, is a consistent concern of the purchasing staff, this article will teach you how to choose the cable in the network integrated cabling system.
And? Not always the case. Too far ahead of not only increase the investment, but also may be out of touch with the demand, a waste of resources. In addition, the network room, such as the performance of network products, access line bandwidth, office equipment and other external factors, but also to a large extent affects and restricts the performance of the product to play, do not comprehensively consider the environmental conditions and one-sided pursuit of product sophistication, but also fall into the product selection of the wrong area. According to the previous analysis of user needs and selection of principles, the current users and their choice of wiring products for the following three options:
Note that the outdoor environment caused by the aging of the device makes the technical parameters and performance indicators of the decline. So from a security point of view, more shielding and fiber optic cabling system. The transportation building is characterized by a large building area, if it involves the connection between buildings in different places, reflecting the form of decreasing cable along the pipeline, is an extended star network. Trunk part of the cable routing is very long, it is appropriate to use fiber optic cabling system.4, at the same time, the wiring system should take into account both the current demand, but also to take due account of future development, but also can not ignore the external factors, like the foundation of the building, the wiring system in the intelligent system in the basic role of the system determines that once it is built, it is unlikely to be able to change in the short term, and thus the wiring system has a long life cycle - that is, 15 to 25 years.
The wiring management and and the processing of information are done together, in fact, should be called home information wiring equipment, super Category 5 token ring network, both wiring functions, network engineering, and telephone, network information exchange and transmission, the family's three meter reading, emergency call for help, such as the conversion of family intelligent control information and transmission, etc., wireless network card. The general use of pure copper cable wiring, pay attention to good quality and low price.3, shielded and unshielded cable selection, depending on the external electromagnetic interference, the interference field strength is less than 3 V/m, generally do not consider protective measures, the interference signal more than the standard amount of shielded cable can be selected. The price of shielded cables is 1.2 to 1.6 times that of unshielded cables. Therefore, shielded cables are suitable for serious electromagnetic interference areas and places with high confidentiality requirements.
2, to be combined with the application of the cabling system needs to consider the choice of cable categories.
The use of home integrated wiring box to complete the wiring function, but there is no information processing (such as switching, storage, processing, transmission);Personal Digital | Laptops Mobile Phones Home PCs UMPC Digital Imaging Consumer Digital Digital Digital Home Appliances Printing and Scanning Home Networking GPS and Navigation
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For problems involving electromagnetic interference with electromechanical equipment, cables should also be considered for their shielding. The most important thing is to consider the cable transmission bandwidth requirements and medical equipment electromagnetic interference problems, due to the hospital occupies a large area, more buildings, complex functional requirements, to consider it as a multi-functional building groups, in accordance with the requirements of the design of the cable layout between the buildings, in order to meet the demand for a number of conditions, the use of shielded wire + fiber optic cabling system is more appropriate.
Outdoor sites should pay attention to the device moisture, dust, anti-vandalism and lightning;Two, the current user of the main purchase program
Three is the ordinary user, mainly to achieve the transmission of information as a basic need, such as ordinary residential. Residential buildings have two characteristics of integrated wiring: