FV-NS255U is a XGS-PON ONU which is based on the lastest XGS-PON Technology, and it support the lastest WIFI6 Technology.
The ONU also uses a relatively stable Realtek WIFI chip, which can provide customers with a better WIFI internet experience.

It is based on ITU-T G9807.1 Standard. The PON port is with XGS-PON SFP+ and wavelengh is Transmit: 1270nm Receiver: 1577nm. 
It supports uplink rate of 10Gbps and a downlink symmetric rate of 10Gbps.
And also, there is a 10GE LAN port which could meets some of customers requirements who needs high internet speed access.

This XGS-PON ONU supports WIFI6 IEEE 802.11ax technology, with a wireless rate of up to 3000Mbps.
It is with advantages of wide wireless coverage, and stable WIFI signal, which fully ensure the stability of users‘ wireless internet connection.
The WIFI6 AX3000 ONU supports WPA3 security encryption, which can better ensure the security of user data.
This ONU also supports up to 128 user links, fully meeting application scenarios such as home, office, and shopping malls

In summary, XGS-PON is a future trend , and EPON and GPON will also gradually be phased out.
With the evolution of technology and increasing demand for networks, XGS-PON will be widely used in various scenarios in the near future.

PON:  1* SC/APC or SC/UPC connector
LAN:  1*100/1000/2.5G LAN port + 3* GE RJ45 ports
FXS:  1* RJ11 VoIP port
USB:  1* USB 3.0 port
WiFi:  4* 5dBi external antennas
Button: WiFi, WPS, Reset, Power On/Off
LED Status Indicators: Power, PON, LOS, WIFI, LAN1-LAN4

Register
XGS-PON: SN,Password, Loid authentication
Flexible mapping between GEM Port and TCONT
SR-DBA and NSR-DBA

XGS-PON Parameters
XGS-PON: ITU-T G.9807.1 standards, XGS-PON  SFP+
XGS-PON: 9.953Gbps/9.953Gbps downstream/upstream
Wavelength: Transmit: 1270nm, Receiver: 1577nm
Receiving Sensitivity : XGS-PON:  ≥ -30dBm
Transmitting Power : XGS-PON: 1～4dBm

Layer 2 Switch
IEEE 802.1q, VLAN transparent/tag/trunk
MAC address learning/limit
Port flow control

Device Parameters
Power: AV100~240V --> DC12V 2A
Power Consumption: <18W
Dimensions: 235mm(L) x155mm(W) x41mm(H)
Weight: About 560g
Operating Temperature: -5°C to +50°C
Storage Temperature: -40°C to +85°C
Operating humidity: 10% to 95%(Non-condensing)

WiFi
4*4 5dBi external antennas
IEEE 802.11a/b/g/n/ac/ax
Speed 3000Mbps@2.4GHz 2T2R+5.8GHz 2T2R
4* SSIDs broadcast/hidden
WEP/WPA/WPA2/WPA3 security
WiFi channel auto select

USB
DLNA DMS
SFile/Printer sharing
USB backup/restore configuration

VoIP
SIP/H.248
Codec: G.711, G.729, G.723
T.30, T.38, G.711 fax mode
Caller Identification/Call Waiting/Call Forwarding/Call Transfer/Call Hold/3-way Conference

Network
PPPoE/DHCP/Static IP
NAT/NATP
Port forwarding
DNS server/client
DHCP server/client
IPV4, IPV6, IPV4/IPV6 dual stack
Static routing/Dynamic routing
IGMP transparent/proxy/snooping

QoS
Flexible packet classification
SP/WRR/SP+WRR
Ingress rate limit
Egress shaping
WMM(WiFi Multi Media)

Security
Broadcast packet rate limit
MAC address/URL filtering
Multiple VPN(IPSec, PPTP) pass through Firewall
Broadcast/Unicast/Multicast attack protection
Dual image for firmware auto rollback

Management
OMCI/TR069 management
Local WEB GUI/Telnet management
Remote WEB GUI/Telnet management