HUAWEI ONU each indicator significance
LOS indicator (LOS) x09 x09 PON port to receive the light power normal
PON port indicator light (PON) green light indicates that the device completes MPCP and OAM discovery and registration
Power indicator (POWER) green light long, x09 system power on
Ethernet port status lights (LAN1, LAN2, LAN3, LAN4), green light long, x09 physical link normal
