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A 4-port EPON OLT (Ethernet Passive Optical Network Optical Line Terminal) is a central device in a fiber-to-the-home (FTTH) or fiber-to-the-building (FTTB) network. It plays a crucial role in delivering broadband services over passive optical networks. Here are the key features and functions:
In summary, a 4-port EPON OLT is a compact yet powerful device that enables high-capacity, cost-effective, and scalable fiber access solutions for modern broadband networks.
- Port Capacity:
It has 4 PON ports, each capable of supporting up to 64 ONUs/ONTs (Optical Network Units/Terminals) using 1:64 optical splitters, totaling up to 256 subscribers. - Uplink Interfaces:
Usually equipped with GE (Gigabit Ethernet) or 10GE (10 Gigabit Ethernet) uplink ports to connect to the core network or internet backbone, ensuring high-speed data transmission. - Bandwidth Support:
Supports 1.25 Gbps upstream and 2.5 Gbps downstream bandwidth per port, suitable for internet, IPTV, VoIP, and other services. - Standard Compliance:
Based on IEEE 802.3ah standard, ensuring compatibility with various vendors and network components. - Network Management:
Includes features like SNMP, CLI, Telnet, and Web GUI for remote management, monitoring, and configuration. - QoS and VLAN Support:
Provides Quality of Service (QoS) mechanisms and VLAN tagging for traffic prioritization and efficient bandwidth allocation. - Compact Design:
Often comes in a 1U rack-mountable chassis, making it ideal for small to medium-sized deployments in ISPs or enterprises.
In summary, a 4-port EPON OLT is a compact yet powerful device that enables high-capacity, cost-effective, and scalable fiber access solutions for modern broadband networks.