4fe wifi CATV USB gpon optical network terminal 4fe wifi CATV USB gpon optical network terminal



The SGN8668FWT is an ITU-T G.984.x based GPON ONT designed for family users. It offers 4 Fast Ethernet and 1 CATV RF Ports for Internet and TV outputs. It is also built in with a 300Mbps WiFi router.

The SGN8668FWT supports full Home Gateway features, such as Multiple WAN connections, VLAN, QOS, etc. It is a GPON ONT for CATV Operators integrating high speed Internet and high quality TV services over single fiber.

Main Features:

  • Fully complies with ITU-T G.984.x GPON standard, compatible with Huawei, ZTE, Fiberhome, CHIMA GPON OLTs.
  • Offers 1 GPON WAN Port, support 1.25G upstream and 2.5G downstream
  • Offers 4 *10/100Base-Tx Ethernet ports, can be configured in Route or Bridge mode
  • Offers 1 CATV RF port, support high quality TV image transmissions over 1550nm Fiber.
  • Offers a 300Mbps WiFi router, satisfy your WiFi requirement for home & Office
  • Max 1:128 Fiber ration, max transmission distance can reach 35km
  • Supports Software based Multiple WAN connections, offers different services on different LAN ports.
  • Support AES 128-bit encrypted and key switching, enhancing transmission security
  • Support 40 Tconts and 256 GEM Port IDs, enabling multiple services on a single Subscriber CPE.
  • Support FEC (Forward Error Correction), ensures high reliable and precise data transmission
  • Support Dynamic Bandwidth Allocation (DBA), Smarter bandwidth assignment and usage.
  • Support L2 Switching and L3/4 Home Gateway/CPE features with hardware NAT
  • Supports IEEE802.1Q VLAN and 802.1P QOS, classify and prioritize services for you.
  • Support OMCI and TR069 Management, manage subscribers remotely.
  • Supports IPv4 and IPv6, highly applicable in both IP type based networks.

Technical Parameters

GPON Parameters

  • Fully complies with ITU-T G.984.x GPON compliant
  • Built-in a Class B+ 2*10 SFF packaged GPON transceiver, SC/APC connector
  • Support 1310nm wavelength at upstream & 1490nm wavelength at downstream
  • Support G.984.1 General Characteristics
  • Support G.984.2 Physical Media Dependent (PMD) layer Specification
  • Support G.984.3 Transmission convergence layer Specification
  • GPON transceiver sending power: 0.5-5dbm, receiving sensitivity: -27dbm
  • Transmission wavelength: Upstream: 1310nm / Downstream: 1490nm
  • Support 1:128 Fiber Optic Ratio at 35km transmission distance.
  • Fiber Transmission cable: G.652 Single mode optical fiber cable
  • Configurable AES decryption on downstream payload.
  • Configurable FEC on both upstream and downstream payloads.
  • Multiple Application Processor queues for dedicated connections for in-band management.
  • Enhanced GPON debug and diagnostic functions.
  • Support up to 40 Transmission Container (T-Cons)
  • Support 256 bidirectional GEM Port IDs
  • Support NSR/SR Dynamic Bandwidth Allocation (DBA)
  • Support Forward Error Correction (FEC)
  • Maximum 2.488 Gbps Downlink/1.244 Gbps Uplink
  • Support Dying Gasp

CATV Parameters

  • CATV Frequency range: 40~860Mhz (STV Optional: 40~2200MHZ)
  • RF 75ohm Coaxial Cable TX port: Metric F or England F
  • RF output power: ≥ 80dBuV at input optical power =-6dBm
  • Band Flatness:TV±1dB, (Optional: STV±2dB)
  • CNR ≥47dB, CSO≤-61dB, CTR≤-61dB
  • Support Enable or Disable CATV service remotely

Built-in 300Mbps WiFi Router

  • Built-in with a 4 Port IEEE802.11N 300M WiFi Router, 2.4GHz wireless frequency
  • Comes with 2*5Db external antennas,
  • support transmission distance of 150m for Indoors, 200m for outdoors
  • Support WPS, comes with 1*WPS button and 1*WiFi On/Off switching button
  • Support DHCP, Static IP and PPPOE
  • Support DHCP Server, DHCP Relay, DHCP Client
  • Support Static Routing from source IP to destination IP
  • Support firewall, NAT, NAPT, UPnP
  • Support DDNS, DMZ Host, Port Forwarding
  • Support 64/128 bit WEP, IEEE802.1x, WPA and WPA2 authentications
  • Support Multiple SSID broadcasting, Hidden SSID and Wifi Protocol Setup (WPS),
  • Support Automatically choose the best signal channel
  • Support STA mutual isolation and ACL table based on MAC Accesses
  • Support Wifi Multimedia (WMM), enhanced QOS for multimedia packets

Network & Home Gateway Features

  • Support Layer 2 switching & Layer 3/4 Home gateway features
  • Support Filtering packets and Anti illegal message formats
  • Software configurable Multiple-WAN interfaces, support Route and Bridge mode
  • Support Port-Based, Port&Protocol based VLAN and IEEE802.1Q VLAN, max 4K VLAN IDs and 32 enhanced VLANs
  • Support Layer 2 learning, offers 4K MAC address table
  • Support IEEE802.1d Spanning Tree, IEEE802.1w Rapid SpanningTree
  • Support IEEE802.1x, MAC, IP, or TCP/UDP protocol based ACLs (Access Control protocol)
  • Support IEEE802.1P QOS, can classify traffic with IEEE802.1P/Q priority definition, physical port, DSCP, etc.
  • Support Loop detection, can terminate the port when a remote loop is found
  • Support Storm filtering control for broadcast, multicast, unknown unicast, ARP, etc
  • Support Port Mirror, able to mirror multicast monitored source port to monitoring destination port
  • Support IGMP V2 and V3, IGMP Snooping for IPV4 / MLD V2 and V3, MLD Snooping for IPV6
  • Support up to 8 virtual WAN connections that can be bound to different LAN/WiFi interfaces. Each WAN connection can be assigned with VLAN ID and QOS mark to separate services over the same GPON ONT device.
  • Support Auto MDI/MDIX for Ethernet port
  • Support Bandwidth Control, Flow control
  • Advanced Routing, support Static Route, Policy Route, DNS proxy

Management Features

  • Support serial interface maintenance using UART
  • Support local http WEB and Telnet management
  • Support OMCI (ONT Management and Control Interface) management.
  • Support TR069, can work with a customer appointed ACS
  • Support Auto Provisioning through FTP/TFTP/HTTP servers.

Hardware Interfaces

1*GPON PON ports 1*USB port
4*10/100Base-Tx LAN ports, support Auto MDI/MDI-X 1*Power Supply Jack
1*CATV RF Port 1*WiFi Button
1*300Mbps WiFi Router 1*WPS button
LED Indications:  Power, PON, LOS, WAN, TV, LAN1-4, WIFI, WPS, USB 1*Reset button
2*5dB Internal Antennas (2T2R)

 Specification Table

Standards IEEE 802.3,IEEE 802.3u, IEEE802.3ab, IEEE 802.3x, IEEE802.1Q, IEEE802.1P, IEEE802.1D, IEEE802.11b/g/n, ITU-T G.984.1, ITU-T G.984.2, ITU-T G.984.3, ITU-T G.984.4
WAN Port 1*GPON WAN Port, Class B+, SC/APC Connectors
LAN Ports 4*10/100Base-Tx Ethernet LAN Ports
TV Port 1*CATV RF Port
WiFi IEEE802.11b/g/n 300Mbps WiFi, 2*5dB internal Antennas
Ethernet Cable 10Base-Tx: UTP category 3, 4,5, up to 100m
100Base-Tx: UTP category 5, up to 100m 
1000Base-Tx: UTP category 5, 5E, 6, up to 100m
Fiber Cable 8.3μm, 8.7μm, 9μm and 10μm single mode fiber cable
Power Supply AC110-240V Input, DC 12V, 2A output
 Temperature & Humidity    Temperature Humidity
Working 0 to 50℃ 10% - 90%
Standby -20 to 70℃ 5% - 90% RH

 Order Information

Model NO. Description


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Shenzhen Chima Technologies Co Limited




Add:5/F, Building NO.1, TongXin Industry Zone, HengGang, LongGang, Shenzhen, China