Broadband Optical Access Network System

PON(Passive Optical Network) Standardization

Early in 1993, Hitachi joined in International Telecommunication Unit ITU-T Study Group 15 (SG15) and drafted the earliest broadband PON international standard G.982. In following years, Hitachi and the largest Japan telecommunication operator NTT jointly held Japan-Tokyo ITU-T conference. With the development of broadband multi-service technologies, the market requirement for optical broadband access is becoming obvious. Since 1998, Hitachi began to be dedicated to drafting of ITU-T G.983.1/2 recommendation-ATM based PON technology standard, then joined in the Full Service Access Network (FASN) organization, and participated in drafting of G.983.3~G.983.7 serial BPON standard.

As one of the key members of ITU-T SG15, Hitachi keeps growing and leads the research on broadband optical access technology, since 2001, Hitachi started tracking the high performance GPON technology, and dedicated itself to drafting of ITU-T GPON serial standard G.984.1~G.984.4. During this process, Hitachi sponsored the ITU-T Japan-Yokohama conference.

Cooperating with the requirement of ITU-T PON standard development and industrialization, Hitachi attended BPON interoperability testing respectively in Japan and Geneva that attracted many global PON equipment vendors to participate in. Hitachi achieved satisfactory interoperability result.

In addition to the contribution to international standardization, Hitachi has also been actively involved in "FTTH Council Asia-pacific" which was founded by an optical communication expert of Hitachi and sponsored by optical communications industries of Asia Pacific countries. This organization is serving for FTTH business of all countries in Asia Pacific area. Currently Hitachi is further tracking PON technology's development and future new trends.

PON product development and sales records
Combining experience in PON technology standardization and proven ability of development in the area of electronic components, Hitachi started to develop and manufacture PON series products based on Japan telecomm operators' intellectual property since the mid term of 1990s, including 10Mbps STM-PON and 150Mbps ATM-PON. Since 2000, Hitachi has closely cooperated with NTT, according to ITU-T international standard and NTT service requirement, Hitachi developed AMN1200 series BPON and BEPON equipment, and offered carrier-class broadband PON access solution.

Up to now, Hitachi -supplied nearly one million lines of BPON equipment to NTT, with reliable performance on the network. At the same time, Hitachi also supplied to Australian, American, and European market. According to a recent global survey, PON line number offered globally by Hitachi occupies the largest share of global PON equipment trade. Currently Hitachi accomplished the design and R&D of GPON product based on ITU-T G.984 standard and is actively pushing to the US GPON market.