Monday, May 10, 2010

Hitachi Moves Forward with 10GEPON, 10G DOCSIS PON

Hitachi Communication Technologies America introduced 10GEPON and 10G DePON Optical Network Units and Line cards for its Salira product line. The new offerings, which are aimed at North American cable operators, support business access over fiber infrastructure.

Hitachi said it expects 10G-DePON will become the primary technology for cable operators building new high bandwidth access networks because of the combination of high bandwidth, lower cost of PON, and service control that retains an MSO's existing DOCSIS management systems.

Hitachi has been active in integrating DOCSIS management with the IEEE GEPON physical layer. The IEEE 802.3av standard supports symmetrical 10Gbps transmission or 10Gbps downstream and 1Gbps upstream. The wavelengths used in 10GEPON are allocated with the goal of ensuring coexistence with existing GEPON and RF video to enable support for symmetric 10Gbps ONUs, asymmetric 10Gbps/1Gbps ONUs, and symmetric 1Gbps ONUs, as well as radio frequency (RF) video overlay on the same optical distribution network.

Hitachi said it also is a contributor to the IEEE 10GEPON standard and has a leading role in SIEPON and other standards efforts aimed at integrating DOCSIS and EPON as well as creating interoperability of EPON equipment.