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10                               NTU-1 Optical Network Terminals 
2.5 Light Indication 
The Power, Status, Link Act., Speed, PON Link, PON Alarm, Reset indicators located on the top panel 
show the device current status. 
Table 5 lists possible statuses of the LEDs. 
Table 5 – Light Indication of Device Status 
device is disconnected from the power source or faulty 
during loading device or a default configuration 
the process of getting configuration by OMCI  
an error in the configuration process by OMCI 
OMCI configuration is completed successfully, the device is working properly 
there is no connection to the LAN-port 
established LAN connection 
Data transmission process 
there is no connection to the LAN-port 
established 1000 Mbps connection 
established 10/100 Mbps connection 
no signal from optical line terminal 
device is not registered on optical line terminal 
transferring data packets 
a connection between the station and the optical terminal device 
a connection between the station and the optical terminal device 
no signal from optical line terminal 
2.7 Reboot and Reset to Factory Settings 
For device reboot, press the Reset button once on the device side panel. In order to reset the device to 
factory settings, press  the  Reset  button  and  gold  it for 7-10 seconds until  the  POWER  LED  glows red.  Factory 
settings for IP address are: LAN – 192.168.1.1, subnet mask – 255.255.255.0.  
2.8 Delivery Package 
The standard delivery package of NTU-1 includes: 
–  NTU-1 optical network terminal; 
–  220V/12V power adapter; 
–  Operation Manual.