Fujitsu Network Communications unveiled a new Hybrid Gigabit Passive Optical Networking (GPON) architecture and industry vision that incorporates several enhancements, including higher downstream/upstream speeds, support for native transport of Ethernet and TDM services via Generic Encapsulation Method (GEM), and the option to eliminate legacy ATM.
Fujitsu said its Hybrid GPON architecture allows cost-effective and efficient capacity upgrades without requiring changes to previously deployed GPON Optical Network Terminals (ONTs). Available as part of the initial GPON product release, the Fujitsu Hybrid GPON option is fully G.984 compliant, utilizing the same GPON protocol, downstream rates, and upstream rates.
Since most of the cost of a PON architecture is in residential ONTs and associated installation and labor costs, substantial savings are produced by eliminating the requirement to upgrade the ONTs.
Current PON deployments rely on BPON technology that provides 622 Mbps of bandwidth toward subscribers (i.e. downstream) and 155 Mbps of bandwidth from subscribers (i.e. upstream). The newer GPON technology supports 2.488 Gbps downstream and 1.244 Gbps upstream, allowing for residential speeds of up to 75 Mbps per home.
http://us.fujitsu.com/telecom
