GPON (Gigabit-Capable PON)

GPON (Gigabit-Capable PON) technique is based on ITU-TG. 984. The latest generation x standard broadband passive optical comprehensive access, with high standard, high efficiency, big bandwidth coverage, the user interface, such as rich numerous advantages by most operators as broadband access network business, which realize the ideal technology integration transformation. The earliest GPON by FSAN organization in September 2002 to put forward, ITU-T based on this in March 2003 and completed the ITU-T G 984.1 and 984.2 G the formulation, the February 2004 and June completed the 984.3 G of standardization. And in the end the standard form GPON families.

introduction

GPON technology originated in 1995 began gradually formed the ATMPON technical standard, the PON is "passive optical network is the abbreviation of". And GPON (Gigabit-Capable PON) by the earliest FSAN organization in September 2002 to put forward, ITU-T based on this in March 2003 and completed the ITU-T G 984.1 and 984.2 G the formulation, the February 2004 and June completed the 984.3 G of standardization. And in the end the standard form GPON families. Based on the basic structure GPON technology equipment with existing PON, by the bureau is also similar OLT (light lines terminal), the client ONT/ONU (optical network terminal or known as light network unit), before two kinds of equipment connected by single-mode optical fiber (SM) and fiber passive target with (Splitter) composed of ODN (light distribution network) and network management system composition.

Technical standard

For the rest of the PON standards it, GPON standards provide unprecedented high bandwidth, descending rate as high as 2.5 Gbit/s, its asymmetric characteristic more can adapt broadband data services market. Provide QoS guarantee all the business, at the same time carrying ATM letter and (or) GEM frame, a very good offer service level, support and all the business QoS guarantee access ability. Carrying GEM frame, can will TDM business mapped to GEM frame, use the standard 8 kHz (125 u s) frame to directly support TDM business. As the technical standard, the telecommunication level GPON also stipulated in the level of access network protection mechanism and complete OAM function.

In standard, a clearly defined in GPON needed to support business types including data services, including the IP (Ethernet business business and MPEG video), PSTN business (placing, ISDN business), lines (T1, E1, DS3, E3 and ATM business) and video business (digital video). The mapping to GPON business letter yuan or GEM ATM, frame to transfer to various business types can provide the corresponding QoS guarantee.

products

GPON technology allows operators should according to their respective market potential and specific control environment, the authors provide its customers need to provide specific business. GPON technology, equipment relatively complicated. GPON bearing have the security of the many business and QoS powerful OAM ability advantage to a large extent is the complexity of technology and equipment for the cost, thus make the related equipment costs more. Along with the development of technology and mass GPON application, the cost of GPON equipment will be correspondingly decline.