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TECHNICAL Call 1-800-626-0005
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Call 1-800-626-0005 www.hubbell-premise.com N11 ANSI/TIA -568- C.1 The Telecommunications Room (TR) is an enclosed space for management and termination of backbone and horizontal cross connections. The TR typically provides the horizontal cabling to all of the work areas on a single floor of a building. The TR is centrally located, and isolated from EMI (electromagnetic interference), with proper grounding and lighting. The TR may also contain other active equipment, power, or security devices. Backbone cabling feeds each TR in a building from the main cross-connect (MC) in the Equipment Room (ER). Basic Requirements: O Minimum (1) TR per floor. O No carpet or suspended ceilings. O Minimum (2) walls covered with ¾" A/C plywood. O Dedicated, unswitched electrical power. O (1) TR serves up to 10,000 sq. ft. of floor space. O Temperature and humidity control. The Equipment Room (ER) is a centralized space for housing the core electronic equipment, such as computer servers, routers, hubs, etc. The backbone cabling originates from the ER, which serves the entire building or campus. The ER may function as a TR, and also may contain an entrance facility. Stringent electrical and environmental requirements apply to the design of an ER to provide a suitable operating environment for active network equipment. ERs should be supplied with non-switched, conditioned power with back-up. ERs should not be located near mechanical rooms, electrical distribution panels, or wet/dirty areas. Basic Requirements: O Minimum (1) ER per building. O No carpet, suspended ceiling permitted. O Dedicated, unswitched electrical power - back-up and surge protection. O (1) ER serves up to 20,000 sq. ft. of floor space. O Temperature and humidity control. O Double doors for entrance. The Entrance Facility (EF) is located where the access provider and inter-building network cables enter the building. Outside plant cables, typically from underground, are terminated inside the entrance facility. This location is known as the demarcation point – the transition from access provider to customer-owned cable. A combination of electrical, fire, building, municipal, and FCC codes apply to the EF. The EF may share other functions, including fire and security alarms, CCTV, CATV, PBX, etc. Basic Requirements: O Dry environment. O Proper backboarding for equipment. O Secure location. O Access to building electrical service ground. O Circuit protection. tải về 0.82 Mb. Chia sẻ với bạn bè của bạn:
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