... EPONs in 1u/19inch chasis 2.Telecom carrier class design 3.Rich uplink ... surf-netting, IP voice, IPTV, CATV and etc. 2. Special FeaturesHighest integration level in industry, 1U height, ... small size, high capacity, 2 built-in PONs in main board, supports 8 PONs ... port, -48Vdc power supply input2PON line card4Hot-swappable 2 EPON interfaces, compliant with IEEE802.3-2005 EPON ...