... different interfaces such as FE, GE, VoIP, E1, WiFi, RF, USB and other interfaces to meet the requirements of FTTH,FTTO ... ONU side. Easy for trouble shootingSupport ONU signal tracing and performance monitoring, and quickly locate fault of ONU. Particular power saving ... status monitoring when ONU is free, and enter low power consumption state; Optical module can also enter low-power state when ...