NTU-RG-54xx Operational manual
2.2  Models
NTU-RG series devices are designed to support various interfaces and features, see Table 1.
Table 1 – Models
Model Name WAN LAN FXS Z-Wave RF Wi-Fi USB
NTU-RG-5402G-W 1xGPON 4
х1Gigabit
2 - - 802.11n, 2*2 - 300 Mbps – 2.4GHz 1
NTU-RG-5421G-
Wac
1xGPON 4
х1Gigabit
1 - - 802.11n, 2*2 - 300 Mbps – 2.4GHz802.11ac 
2*2 - 866 Mbps – 5GHz
1
NTU-RG-5421G-WZ 1xGPON 4
х1Gigabit
1 1 - 802.11n, 2*2 - 300 Mbps – 2.4GHz802.11ac 
2*2 - 866 Mbps – 5GHz
1
2.3  Device Specification
The device is equipped with the following interfaces:
• RJ-11 ports for analogue phones connection (FXS):
• 2 ports in NTU-RG-5402G-W;
• 1 port in NTU-RG-5421G-Wac, NTU-RG-5421G-WZ.
• 1 x PON SC/APC port for connection to operator's network (WAN);
• Ethernet RJ-45 LAN ports for connection of network devices (LAN):
• 4 x RJ-45 10/100/1000Base-T ports.
• Wi-Fi transceiver:
• 802.11b/g/n in NTU-RG-5402G-W;
• 802.11a/b/g/n/acin NTU-RG-5421G-Wac, NTU-RG-5421G-WZ.
• 1 x USB 2.0 ports for external USB or HDD storage;
• "Smart Home" controller, forms a part of NTU-RG-5421G-WZ.
The terminal uses an external adapter for 220V/12V power supply.
The device supports the following functions:
• Network functions:
• Operation in 'bridge' or 'router' mode;
• PPPoE support (auto, PAP, CHAP, MSCHAP authorization);
• IPoE support (DHCP-client и static);
• Static IP address and DHCP support (DHCP client on WAN, DHCP server on LAN);
• transmission of Multicast traffic via Wi-Fi;
• DNS (Domain Name System);
• DynDNS (Dynamic DNS);
• UPnP (Universal Plug and Play);
• IPsec (IP Security);
• NAT (Network Address Translation);
• Firewall;
• NTP (Network Time Protocol);
• QoS technology;