Monday, December 20, 2010
【 Weak current College 】 smart home wiring main reference standards
Home wiring standard (TIA/EIA570-A)
United States National Standards Committee (ANSI) and TIA/TR-41.8 EIATR-41 Committee Subcommittee of TR-41.8.2 working group in 1991 and 5 set out the first ANSI/TIA/EIA570 home wiring standard, and in September 1998, TIA/EIA Association officially revised and updated home cabling standards and reclassified ANSITIA/EIA-570A-home telecommunications cabling standard (ResidentialTelecommunicationsCablingStandard). In the development of requirements, the Working Group made the following number of major technical changes:
The standard does not cover commercial building
Basic specification will follow the TIA manual update of content and standards
The standard does not deal with household wiring in the number of outside lines
Set the level of the household wiring
Authorized user interface including fiber-optic cable, coaxial cable, the three categories and unshielded twisted-pair cable (UTP)
Key path length from the socket to the wiring box must not exceed 90 m (295 ft) in length must not exceed the channel 100 meters (328 feet)
Backbone cabling will be included
Fixtures for wiring, such as radio, fire detectors will be included
Communication socket or plug seat only suitable T568-A connection method and use four on UTP cable termination eight modules or plug
A. standards:
The TIA/EIA570-A proposed requirements are primarily to provide a new generation of domestic telecommunications cabling to present and future of telecommunications services. Standard key for wiring a new level, and to establish a distribution medium basic norms and standards, the main application support voice, data, images, video, multimedia, home automation systems, environmental management, security, audio, TV, probes, alert and radio services. Standard key planning for new construction, equipment, a single update to increase residential and buildings, etc.
B. standard range:
TIA570-A standards apply to today's complex cabling standards and associated piping, space standards for buildings, and can support different types of telecommunications applications in different home environment. Standards including indoor home wiring and indoor to the wiring.
Standard specification mainly follows the international electrical specifications (NationaIElectricCode), international electrical safety specifications (NationaIElectricSafteyCode). FCC part 68 rules and project management.
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