Uplink: support electrical and optical modules, can be flexibly configured according to different networking Optical link diagnosis: complete warning mechanism High reliability: supports dual power supply Dimension: 1U cassette save space, low power consumption Capacity: Each PON supports up to 128 terminals, the whole device supports up to 256 ONUs under full configuration * Support flexible DBA, up and down traffic speedcontrol

*Support ONU automatic identification, auto-discovery, and auto-registration *Support VLAN *Flexible and controllable multicast support, support IGMP snooping