Advantages & Features

  • 4PON ports
  • 4*GE uplink RJ45 ports
  • 2*GE uplink SFP ports
  • IEEE 802.3ah EPON
  • 1:64
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Product details for EPON OLT TW8004EN 4GE 2SPF 4EPON

EPON OLT TW8004EN 4GE 2SPF 4EPON 1U AC/DC optional Double power redundancy

TW8004EN is designed for chassis OLT device which prodices 4 downlink 1000M PON ports,2 uplink GE RJ45 ports and 4 uplink GE SFP. The height is only 1U for easy installation and space saving. Each PON supports up to 64 terminals, the whole device supports up to 256 ONUs under full configuration. TW8004EN adopts advanced technology to support SLA and DBA to keep strong function on the Ethernet and QoS features. TW8004EN is applied for commercial and grid network digital management to provide perfect, smart, strong, advanced, professional solutions for “automatic distribution” and “electricity information collection” in the implemented project for the national grid.




Item TW8004EN
Service port 4*PON ports,2*GE uplink RJ45 ports,4*GE uplink SFP ports
Redundancy design Dual power supply, support AC input,dual DC input and AC+DC input

Default:single AC power supply

Power supply AC:90~260V,47~63Hz ;


Power consumption ≤46W
Outline dimensions(mm) (W*D*H) 442mm×44mm×300mm
Weight (in maximum configuration) ≤3kg


Working temperature:0°C~40°C

Storage temperature:-40°C~70°C

Relative humidity:10%~90%,no condensing

Product features:

Item TW8004EN






POE features

IEEE 802.3ah EPON;

China telecom/Unicom;  GEPON standard;

20Km for single fibber;

Access 64 terminals for single fibber PON;

Uplink and downlink triple churning encrypted function;

ONU terminal legitimacy certification, report illegal; ONU registration;

DBA algorithm;

Standard OAM and extended OAM;

ONU batch software upgrade, fixed time upgrade, real time upgrade;

PON transmit and inspect receiving optical power


L2 features

MAC MAC Black Hole

Port MAC Limit

8K MAC address

VLAN 4K VLAN entries

Port-based/MAC-based/IP subnet-based VLAN

Port-based QinQ and Selective QinQ (StackVLAN)

VLAN Swap and VLAN Remark and VLAN Translate


Based on ONU service flow VLAN add, delete, replace

Spanning tree protocol IEEE 802.1D Spanning Tree Protocol (STP)

IEEE 802.1w Rapid Spanning Tree Protocol (RSTP)

IEEE 802.1s Multiple Spanning Tree Protocol instances (MSTP)

ONU remote loop detecting alarm

port Bi-directional bandwidth control

Static link aggregation and LACP(Link Aggregation Control Protocol)

Port mirroring and traffic mirroring


Security feactures

User security Anti-ARP-spoofing


IP Source Guard create IP+VLAN+MAC+Port binding

Port Isolation

MAC address binds to port and port MAC address filtration

IEEE 802.1x and AAA/Radius authentication

Device security Anti-DOS attack(such as ARP,Synflood, Smurf, ICMP attack), ARP detection, worm and Msblaster worm attack

SSHv2 Secure Shell

SNMP v3 encrypted management

Security IP login through Telnet

Hierarchical management and password protection of users

Network security User-based MAC and ARP traffic examination;

Restrict ARP traffic of each user and force-out user with abnormal ARP traffic;

Dynamic ARP table-based binding;

Supports IP+VLAN+MAC+Port binding;

L2 to L7 ACL flow filtration mechanism on the 80 bytes of the head of user-defined packet;

Port-based broadcast/multicast suppression and auto-shutdown risk port;

URPF to prevent IP address counterfeit and attack;

DHCP Option82 and PPPoE+ upload user’s physical location;

Plaintext authentication of OSPF,RIPv2 and BGPv4 packets and MD5 cryptograph authentication.


Service features

ACL Standard and extended ACL

Time Range ACL

Packet filter providing filtering based on source/destination MAC address, source/destination IP address, port, protocol, VLAN, VLAN range, MAC address range, or invalid frame. System supports concurrent identification at most 50 service traffic

Support packet filtration of L2~L7 even deep to 80 bytes of IP packet head

QoS Rate-limit to packet sending/receiving speed of port or self-defined flow and provide general flow monitor and two-speed tri-color monitor of self-defined flow

Priority remark to port or self-defined flow and provide 802.1P, DSCP priority and Remark

CAR(Committed Access Rate),Traffic Shaping and flow statistics

Packet mirror and redirection of interface and self-defined flow

Super queue scheduler based on port and self-defined flow. Each port/ flow supports 8 priority queues and scheduler of SP, WRR and SP+WRR.

Congestion avoid mechanism,including Tail-Drop and WRED

Ipv6 SA/DA Classification

MLD Snooping

Multicast IGMPv1/v2/v3

IGMPv1/v2/v3 Snooping

IGMP Filter

MVR and cross VLAN multicast copy

IGMP Fast leave

IGMP Proxy



MLDv2/MLDv2 Snooping



Loop protection EAPS and GERP (recover-time <50ms)


Link protection FlexLink (recover-time <50ms)

RSTP/MSTP (recover-time <1s)

LACP (recover-time <10ms)


Device protection VRRP host backup

Double fault-tolerant backup of host program and configuration files

PON card/fan hot-swappable

1+1 power hot backup

Maintenance Network maintenance Telnet-based statistics

RFC3176 sFlow


802.3ah Ethernet OAM

RFC 3164 BSD syslog Protocol

Ping and Traceroute

Device Management Command-line interface(CLI), Console, Telnet and WEB configuration

System configuration with SNMPv1/v2/v3

RMON (Remote Monitoring)1/2/3/9 groups of MIB

NTP(Network Time Protocol)

GN.LinkⅡ Server

NGBNView network management

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