FTTH Architecture.

By | April 14, 2022
  • One of the main benefits of FTTH (Fiber to the Home) – also called FTTP, for “fiber to site” broadband – is that it provides much faster connection speeds and load capacity than twisted pair conductors, DSL, or coaxial cable
  • Fiber to the Home or simply FTTH is a technology that uses fiber optics directly from ISP POP to Home.
  • FTTH is the ultimate fiber access solution, in which each subscriber is connected to an optical fiber. Through PON.
  • A PON is a fiber network that uses only passive and fiber components, such as splitters and combiners, instead of active components, such as amplifiers, repeaters, or modeling circuits. These networks cost significantly less than those that use active components.
  • The main disadvantage is less coverage, limited by signal strength. While an active optical network (AON) can cover a range of about 100 km (62 miles), a PON is typically limited to stretches of fiber cable up to 20 km (12 miles).
  • A GPON uses multiplexing by optical wavelength division (WDM) so that a single fiber can be used for both downstream and upstream data.

A PON is a fiber network that only uses fiber and passive components like splitters and combiners rather than active components like amplifiers, repeaters, or shaping circuits. Such networks cost significantly less than those using active components. The main disadvantage is a shorter range of coverage limited by signal strength. While an active optical network (AON) can cover a range of about 100 km (62 miles), a PON is typically limited to fiber cable runs of up to 20 km (12 miles). PONs also are called fiber to the home (FTTH) networks.

GPON & EPON Differences.

GPON & EPON Working Principles.

EPON also uses WDM with the same optical frequencies as GPON and TDMA.