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CHAPTER 6 Transmission Techniques: Wire and Cable
Published in Douglas Self, Audio Engineering Explained, 2012
Structured cabling, also called communications cabling, data/voice, low voltage, or limited energy is the standardized infrastructure for telephone and local area network (LAN) connections in most commercial installations. The architecture for the cable is standardized by the Electronic Industries Association and Telecommunications Industry Association (EIA/TIA), an industry trade association. EIA/TIA 568, referred to as 568, is the main document covering structured cabling. IEEE 802.3 also has standards for structured cabling.
Structured Cabling System
Published in Mário Marques da Silva, Cable and Wireless Networks, 2018
The basic idea behind the structured cabling concept relies on overcoming the above-described drawbacks, by using a modular cabling system specified by standards and independent of the manufacturers, and for use in a wide variety of application services. Moreover, the structured cabling concept is oriented by performances, taking redundancy as an important requirement, and keeping flexibility to support future additional network requirements. Structured cabling consists of a way networks are organized, with the aim of facilitating installation, maintenance, and administration.
The BEMS central station
Published in G.J. Levermore, Building Energy Management Systems, 2013
Structured cabling provides a standard way to wire a building for all types of network in an IT system. A main distribution frame, housed in a cabinet, acts as an interface to the outside world, perhaps to the telephone system. A vertical cable, often fibre-optic, then runs from the main distribution frame to distribution cabinets on each floor; the cabinets contain patch panels for connecting horizontal UTP cable to wiring or LAN hubs, from which UTP cables can be run to wall sockets for PCs and devices (Fig. 3.6).
Green engineering of Hong Kong and China's first data centre certified to LEED-CS 2009 Platinum
Published in HKIE Transactions, 2018
Helen Cochrane, Fredrick Leong, Steven So, George Or, Melvyn Lai
Airflow management: a design of hot and cold aisles has been adopted in FDC2. Hot aisle layout means the equipment racks are installed back-to-back whereas cold aisle layout means the equipment racks are installed front-to-front. Such a design avoids the mixing of hot air and cold air, and therefore optimises the airflow in the data centres. A design to separate hot and cold air by installing physical partitions for better uniformity of air temperature from the top to the bottom of equipment racks has also been adopted in FDC2. A structured cabling system (i.e. a standardised wiring infrastructure or system such as using a centralised patch panel or cable tray for cable laying) for improving airflow will also be used in FDC2 and a structured cabling system provides more room within racks to improve airflow. Grouping of equipment with substantially different environmental requirements in a separate zone has been deployed in FDC2 and with separate environmental controls for each zone for optimising cooling efficiency. Equipment is selected with heat dissipation properties to match the airflow design for racks to be installed.