An acronym for 10 GigabitGigabit The Gigabit is the unit of measurement that represents 1 billion bits and is abbreviated as Gbit or Gb. This unit of measurement is often used, together with the megabit and the kilobit, in relation to time (in seconds) for calculating the transmission speed of digital signals, mainly used to calculate the speed of a data download. The Gbit/s is currently a widely used unit of measurement to refer to data transmission speed in computer networks. Passive Optical NetworkNetwork In computer language, the term network defines a set of hardware and software devices which, when linked together, enable the exchange and sharing of resources, data or information. In a computer network, the devices that generate, route and terminate data are called network nodes. technology for the provision of ultra-broadbandBroadband The term broadband, in telecommunications, generally refers to the transmission and reception of information data at a connection speed of over 144 kb/s. Broadband organises different channels, conveying different content in the form of data, such as Internet radio, animation, audio files and high-definition video. services over PONPON PON stands for Passive Optical Network, which describes all types of optical networks that have no active equipment between the start and end point. One of these is the network used to bring the fiber-optic link to the end-user by means of point-to-multipoint architecture in which a single fiber is used to reach several recipients via non-powered optical splitters. FTTHFTTH “Fiber to the Home” is the technology that connects POPs, located in exchanges, to end users’ property units with fiber optics. infrastructure, supporting access speeds of up to 10 Gigabits per second downstream (as indicated by the first two letters ‘XG’) and up to 2.5 Gigabits per second upstream. This is an evolution of GPONGPON An acronym for Gigabit Passive Optical Network, an active access technology for providing connectivity over PON FTTH infrastructure. It is defined as active because it is implemented using active network elements such as OLTs, in the central office, and ONTs, in users’ homes. However, the underlying network infrastructure is passive (Passive Optical Network) because it exclusively uses elements that do not require power, such as splitters that allow the optical fiber to be separated into multiple links that branch off to different buildings, reducing the amount of optical fiber and network equipment required. GPON technology provides unprecedented bandwidth (up to 2.5 Gbps downstream and 1.25 Gbps upstream) and greater distance from the exchange, allowing service providers to enable bandwidth-intensive applications. technology, which is currently the most widespread and robust access technology on PON FTTH networks. A later development is the XGS-PONXGS-PON An acronym for 10 Gigabit Symmetric Passive Optical Network, the evolution of GPON technology that enables connection speeds of up to 10 Gigabits per second in both downstream and upstream, as specified by the ‘S’ for Symmetric. This is the main evolutionary step of GPON after XG-PON, which allows a maximum speed of 2.5 Gbps upstream and a maximum speed of only 10 Gbps downstream. The increase in maximum supported upload capacity is one of the most important features of XGS-PON, which is set to become the mainstream technology of the coming years. technology, which allows identical maximum speeds both downstream and upstream, i.e. up to 10 Gigabits per second (as specified by the ‘S’ for Symmetric).