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22  NTU Optical Network Terminals 
2.6.4 NTU -RG-1402G-W 
The LED indicators located on the front panel show the current state of the device. 
Table 16 provides possible statuses of the LEDs. 
Table 16—Light Indication of Device Status 
established 10/100 Mbps connection 
established 1000 Mbps connection 
transferring data packets 
port is not registered or SIP authentication is not completed 
on server  
Wi-Fi network is inactive 
transmitting data via Wi-Fi 
Wi-Fi network is inactive 
authentication failed at optical line terminal 
authentication failed at optical line terminal 
no signal from optical line terminal 
WAN interface is in static or bridge mode, PPP client is not 
running 
device was successfully authenticated on line terminal (PPP 
session started in WAN interface) 
device is not authenticated (PPP session is not started in 
WAN interface) 
the device is disconnected from the power source or faulty 
the default configuration is active 
current device configuration differs from the default one 
 
2.6.5  Reboot and Reset to Factory Settings 
To reboot the device press ‘Reset’ button once on the side panel (for NTU-2VC/NTU-2W, press ‘F’ button 
located on the rear/back panel). To load the device with default factory settings, press the Reset (F) button and 
hold it for 7–10 seconds until the POWER indicator turns red. The factory settings have the following IP 
addresses: LAN—192.168.1.1, subnet mask—255.255.255.0. Access can be provided from LAN 1 and LAN 2 
ports. 
2.7  Delivery Package 
The NTU-2V(C), NTU-2W, NTU-RG standard delivery package includes: 
–  NTU-2V, NTU-RG subscriber optical terminals; 
–  220V/12V power adapter; 
–  Operation Manual.