This structure is designed to support any brand of EPON ONU and is capable of handling up to 512 ONUs with a splitting ratio of 1:64 per PON port. It is equipped with PON SFP slots that feature a PX20++ SC/UPC connector type, which provides a high level of compatibility with other devices. The structure also supports SNMP, Telnet, Https, and SSH login access management, which allows users to easily access and manage their network. It also supports IEEE802.12x, VLAN, Radius, TACACS+, HTTPS, and SSH V2.0, which provides users with a variety of advanced features for network management. In addition, this structure features 8 GE (RJ45) & 4x1GE SFP, 4x10GE (SFP+) ports, which provides high-speed connectivity and support for up to 512 ONUs. The structure also supports L3, which enables it to provide advanced routing features, such as load balancing, routing protocols, and network segmentation. To ensure reliable and uninterrupted operation, this structure also features 2x redundant power supply with an AC input of 100~240V; 47/63Hz, which provides backup power in the event of a power outage. Overall, this structure is a reliable and powerful solution for managing large-scale EPON networks.