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HFC (Hydrofluorocarbons). Hydrofluorocarbons: compound molecules used in cooling equipment. They
are part of the family of greenhouse gases. They do not cause ozone depletion.
Home Access Gateway – Access Gateway – Home gateway – Residential Gateway. A residential
gateway is a home networking device, used as a gateway to connect devices in the home to the Internet
or other WAN.
HSDPA (High-Speed Downlink Packet Access/UMTS Hi Speed – Universal Mobile Telecommunications
System). UMTS evolution allows broadband connections up to 3.6 Mbps.
Kvar (kilovolt–amperes reactive). Reactive energy. measurement system, expressed in kilovolt, of power
losses in an AC electrical system.
ICT (Information and communication(s) technology). Broad area concerned with information technology,
telecommunications networking and services and other aspects of managing and processing
information, especially in large organizations.
Internet. The world’s best-known data network. Initially used by the U.S. Department of Defense, the
Internet now provides an interface for networks based on different technologies (LANs, WANs, data
networks, etc.), but which use the TCP/IP protocol platform.
IP (Internet Protocol). A set of communications protocols for exchanging data over the Internet.
IPTV (Internet Protocol Television). A system that utilizes the Internet Protocol infrastructure to transmit
digital television content over a network and deliver it via a broadband Internet connection.
LCA (Life Cycle Analysis) – Life Cycle Analysis: analytic methodology for the evaluation and
quantification of environmental impact associated to a product/process/activity along the whole life
cycle, from the extraction and acquisition of raw materials up to the end of life.
Local Loop (Doppino Telefonico). Copper wire-couple, through which the telephone connection reaches
users; it is the foundation of traditional telephone lines and it is often called “last mile”.
LTE (Long Term Evolution). Represents the fourth generation (4G) mobile phone systems. LTE belongs to
the standard 3GPP (Third Generation Partnership Project) and it is the latest evolution of GSM / UMTS /
HSPA standard. LTE offers a higher spectral efficiency in bits per Hertz and download bandwidth up to
150 Mbit / s per cell reducing the latency time. LTE enabled services that require high interactivity (eg,
gaming, video conferencing). A further development of LTE, called "LTE Advanced", will perform bitrates
even higher.
MEMS (Micro-Electro-Mechanical Systems). MEMS are miniaturized devices ranging in size from a few
micrometers to a few millimeters, which execute one or more monitoring, processing or actuation
functions by deploying a combination of electronic, mechanical, optical, chemical or biological
components integrated on a usually silicon hybrid circuit.
Multimedia. A service involving two or more communications media (e.g., voice, video, text, etc.) and
hybrid products created through their interaction.
Network. An interconnected collection of elements. In a telephone network, these consist of switches
connected to each other and to customer equipment. The transmission equipment may be based on
fiber optic or metallic cable or point to point radio connections.
NGDC (Next Generation Data Center). A major rethink of the IT architecture through the physical
concentration and virtualization of the servers in order to reduce the costs of
maintenance/management and energy consumption, and to improve efficiency.
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