1000BASE-X

1000BASE-X represents a group of Ethernet standards that operate over fibre optic cables. These standards include 1000BASE-LX, 1000BASE-SX, 1000BASE-CX, and 1000BASE-ZX. 1000BASE-X utilises a data rate of 1 gigabit per second, with '1000' denoting the speed in Mbps, 'BASEBASE: BASE is a telecommunications company that operates within Belgium. It was established in 1999 as a subsidiary of KPN, a Dutch telecommunications and IT service provider. BASE is the third largest of Belgium's three mobile telecommunications operators, offering services to both individual and…' indicating baseband transmission, and 'X' signifying the type of physical medium. 1000BASE-SX employs short wavelength signalling and is designed for use with multimode fibre optic cables. It is typically used in large buildings or campuses, with a maximum range of 550 metres. 1000BASE-LX utilises long wavelength signalling and operates over both single-mode and multimode fibre optic cables. It can cover distances up to 5 kilometres on multimode fibre and up to 10 kilometres on single-mode fibre. 1000BASE-CX is a copper-based standard designed for short distances of up to 25 metres. It is typically used for connections within a single building or between nearby equipment. 1000BASE-ZX is a standard for single-mode fibre optic cables that can cover distances up to 70 kilometres. It employs long wavelength signalling, similar to 1000BASE-LX. All 1000BASE-X standards use 8B/10B encoding, which translates 8-bit symbols into 10-bit symbols to achieve DC-balance and bounded disparity, and to provide enough state changes to allow reasonable clock recovery. This helps to reduce the occurrence of errors during data transmission.