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Help Center4 Port EPON OLT OFSET-5204
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4 Port EPON OLT
OFSET-5204 is a small scale office end OLT device of FTTX telecommunication level independently researched and developed by OPTFOCUS Company; it conforms to IEEE802.3-2005 standard; it can provide user with access to comprehensive services such as broadband, voice, IPTV and CATV.
Main Advantages OFSET-5204 is an optical network device series that is suitable for the current market; one OFSET-5204 supports up to four EPON systems, so it has the following advantages:
EPON: OFSET-5204 supports IEEE802.3ah and PRC Community Industry Standard (YD/T 1475-2006).
System’s capacity: The modularized PON card of OFSET-5204 can support four EPON systems simultaneously, up to 256 ONUs and the 1/64 coupling ratio.
Uplink interface: Its flexible design supports various MAN interface type groups. The optical ports or the electrical ports are selected according to network conditions.
Device size: A 1U device occupies a little space and consumes little power, decreasing the function cost of the services.
Protecting the bus optical fiber: OFSET-5204 supports that the link can be automatically switched to protect the optical fiber when trouble occurs in the optical fiber.
It is highly reliable and powered by two power sources.
Main Characteristics
It adopts the point-to-multipoint network topology, effectively collects separate Ethernet services and aggregates them on the MAN node. It connects the upper-layer devices through the GE interface and can be connected to the existing network smoothly.
The Dynamic Bandwidth Allocation (DBA) mechanism enables all users to share the 1Gbps bandwidth reasonably, guaranteeing a reliable QoS.
The Rapid Spanning Tree Protocol (RSTP) enables the redundant interconnection between OLT and backbone network, while EAPS provides highly reliable 50ms ring.
They support the IGMP multicast and efficiently utilize the bandwidth. They support the multicast VLAN.
It supports the broadcast of IPTV, voice and data simultaneously.
It has rich OAM functions such as configuration, alarm, performance monitoring, trouble isolation and security management. At the same time, it supports the CLI/GUI management, which is easy to use.
Technical Parameters
Attributes |
OFSET-5204 |
System’s capacity |
Maximum coupling ratio, 1:64 32G backplane bandwidth |
Main interface |
6 GE ports (2 gigabit RJ45 ports, 2 combo ports, 2 gigabit optical ports) 4 fixed EPON ports |
PON interface |
A 1Gbps transmission rate with downlink and uplink symmetry Average emitting power of the PON port: +2dbm ~ +7dbm Light reception sensitivity of the PON port: no less than -30dBm Security: ONU authentication mechanism Network coverage diameter: 30 kilometers |
Standard |
IEEE802.3ah IEEE 802.1D, Spanning Tree IEEE 802.1Q, VLAN IEEE 802.1w, RSTP IEEE 802.3ad physical link static/dynamic aggregation (LACP) Ethernet – II, Ethernet-SNAP IEEE 802.3ad VLAN Stacking( Q in Q) |
Service quality |
Backpressure flow control (half duplex) IEEE 802.3x flow control (full duplex) IEEE p802.1p, CoS WR, SP and FIFO Supporting the Mark/Remark priority of 802.1P/DSCP Limiting the uplink/downlink rate based on each ONU Supporting DBA and SLA |
VLAN |
Port-based VLAN GVRP IEEE802.1Q VLAN relay Supporting QinQ and flexible QinQ |
Multicast |
IGMP v1/v2/v3 IGMP Snooping Multicast VLAN and limited multicast |
Application
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