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            NTU Optical Network Terminals    3 
CONTENTS 
1  INTRODUCTION ................................................................................................................................. 5 
2  PRODUCT DESCRIPTION .................................................................................................................... 6 
2.1  Purpose ......................................................................................................................................... 6 
2.2  Models .......................................................................................................................................... 6 
2.3  Device Specification ...................................................................................................................... 6 
2.3.1  NTU-2V(C) ............................................................................................................................ 6 
2.3.2  NTU-2W ............................................................................................................................... 8 
2.3.3  NTU-RG ................................................................................................................................ 9 
2.4  Key Specifications ....................................................................................................................... 11 
2.5  Design ......................................................................................................................................... 13 
2.5.1  NTU-2V .............................................................................................................................. 13 
2.5.2  NTU-2VC ............................................................................................................................ 14 
2.5.3  NTU-2W ............................................................................................................................. 16 
2.5.4  NTU-RG-1402G-W ............................................................................................................. 18 
2.6  Light Indication ........................................................................................................................... 19 
2.6.1  NTU-2V .............................................................................................................................. 19 
2.6.2  NTU-2VC ............................................................................................................................ 20 
2.6.3  NTU-2W ............................................................................................................................. 21 
2.6.4  NTU -RG-1402G-W ............................................................................................................ 22 
2.6.5  Reboot and Reset to Factory Settings ............................................................................... 22 
2.7  Delivery Package ......................................................................................................................... 22 
3  DEVICE ARCHITECTURE .................................................................................................................... 23 
3.1  NTU-2V(C) Architecture .............................................................................................................. 23 
3.2  NTU-2W Architecture ................................................................................................................. 26 
3.3  NTU-RG-1402G-W Architecture .................................................................................................. 29 
4  NTU-RG-1402G-W CONFIGURATION VIA WEB INTERFACE. USER ACCESS ..................................... 33 
4.1  The Device Info Menu. Device Information ................................................................................ 34 
4.1.1  The Summary Submenu. Device General Information ..................................................... 34 
4.1.2  The WAN Submenu. The Status of Services ...................................................................... 34 
4.1.2.1.  The Detail Submenu. Detailed Information ............................................................. 35 
4.1.3  The LAN Submenu. LAN Ports Monitoring. Wi-Fi Interface Status Monitoring ................ 35 
4.1.4  The Statistics Submenu. Traffic Flow Information for Ports of the Device ....................... 35 
4.1.5  The Route Submenu. The Routing Table ........................................................................... 37 
4.1.6  The ARP Submenu. ARP Protocol Cache ........................................................................... 38 
4.1.7  The DHCP Submenu. Active DHCP Leases ......................................................................... 38 
4.1.8  The Wireless Station Submenu. Connected Wireless Devices .......................................... 38 
4.1.9  The Wireless Monitor Submenu. Detected Wi-Fi Networks ............................................. 39 
4.1.10  Voice submenu.  Monitoring the phone port states ......................................................... 39 
4.2  The Advanced Setup Menu. Advanced Settings ......................................................................... 40 
4.2.1  The LAN Submenu. Configuration of Main Parameters .................................................... 40 
4.2.2  PPPoE menu. PPP1 Settings .............................................................................................. 41 
4.2.3  The NAT Submenu. NAT Settings ...................................................................................... 41 
4.2.3.1.  The Virtual Servers Submenu. Settings of Virtual Servers ....................................... 41 
4.2.3.2.  The Port Triggering Submenu. Port Triggering Configuration ................................. 42 
4.2.3.3.  The DMZ Host Submenu. DMZ Settings ................................................................... 44 
4.2.4  The Security Submenu. Security Settings .......................................................................... 44 
4.2.4.1.  The IP Filtering Submenu. Addresses Filtering Configuration ................................. 44