... Support IGMP snooping 1.25GB/S transmission speed V420 FTTH EPON ONU VTEK EPON optical network terminals are user end access ... ONU to provide different interfaces such as FE, GE, VoIP, E1, WiFi, RF, USB and other interfaces to meet the requirements of FTTH ... on EMS to ensure zero configurations on ONU side. Easy for trouble shootingSupport ONU signal tracing and performance monitoring, and quickly ...