莫伟栋眨-CablingStructured Cabling Standards.pptVIP

CablingStructured Cabling Standards Structured Cabling Structured Cabling is the foundation for any communications installation. An appropriate cabling installation ensures the proper operation of equipment, manageability, organization, and expandability of a communications network. Network Cabling In the early 1980s a variety of cable types and designs were utilized. Coaxial and twin-axial cables were the most popular. Proprietary (non-standardized) designs were predominant. Today cabling and devices have been standardized in a way which makes them interoperable and compatible in almost any implementation. Standards Bodies These organizations are composed of representatives from various distributors, manufacturers, and customers in the communications industry ANSI - American National Standards Institute TIA - Telecommunication Industry Association EIA - Electronics Industry Association EIA/TIA-568 - first version of the standard published July of 1991. TSB-36 August of 1991 a Technical Systems Bulletin specifications for higher grades (Cat 4, Cat 5) of UTP. TSB-40 August of 1992 TSB-40 published addressing higher grades of UTP connecting hardware. TSB-40A UTP patch cords in more detail, and to clarify testing requirements for UTP modular jacks. TIA/EIA-568A/(CSA T529) Commercial Telecommunications Cabling Standard EIA/TIA-569/(CSA T530) Commercial Building Standard for Telecommunications Pathways and Spaces EIA/TIA-570/(CSA T525) Residential and Light Commercial Telecommunications Wiring Standard TIA/EIA-606/(CSA T528) Administration Standard for the Telecommunications Infrastructure of Commercial Buildings TIA/EIA-607/(CSA T527) Commercial Building Grounding/Bonding Requirements TSB-67 Transmission Performance Specifications for Field Testing of Unshielded Twisted-Pair Cabling Systems TSB-72 Centralized Optical Fiber Cabling Guidelines Commercial Building Telecommunications Cabling Standard (ANSI/TIA/EIA-568-A-95) Committee: TR-41.8