at customer premises, E/GPon optica

at customer premises, E/GPon optical network Terminals ONTs (including radio frequency video overlay) consume about 10 W against 8 W for adsl2 modems. gpon onts account for 95% of overall power consumption in gpon networks. although these values seem low, the number of network elements placed at customer premises is very high and represents an important part of the total energy consumption. We have thus also proposed energy efficient ONT hardware design. considering a reference home network architecture for PON services employing an ONT with four gigabit ethernet(BbE) interfaces and a regular routed residential gateway (RG) with layer 3 (L3) functionalities,