The SNA8222TW OLT has a very high cost-performance ratio，it fulfills the standard IEEE 802.3ah protocol’s requirement and support China Telecom EPON device technical requirement V2.0, V2.1, and V3.0 standard. It provides 2 GEPON ports, 4 GE uplink port ( include 4 optical port and 4 10/100/1000Bast-T electrical port), 1 Console port and 1 out-of-band management network port. It allows different kinds of ONU to connect. The FTTB or FTTH optical network can be constructed by the collocation of ONU and ODN. The uplink port of device supporting ring protection (<20ms). This device could be used in the residence block’s Internet, communication and monitoring area. Main Characters:
Support 2 GEPON SC ports, 1.25Gbps transmission rate, 2*10/100/1000Base-Tx uplink interfaces
Support 2 * SFP uplink interfaces and 2*RJ45 Ethernet interfaces
Support ＜20 ms ring protection
Support ONU up-down long alarming, ring network alarming and port status change alarming
Support WEB configuration management
Support serial port and TELNET’s CLI management and joint NMS management
Support DBA Dynamic Bandwidth Assignation
Support ONU automatic MAC binding and filtering
Support ONU offline business configuration, Support Automatic configuration
Support PON port isolation
Support ACL access control lists
Support ONU data exchange at the same PON port
Support multi-cast management (IGMP-Snooping / Proxy)
Support 4096 VLAN additions,transparent transmissions, and transformations, support VLAN stack (QinQ)
Support 16K MAC line speed learning and aging, support port MAC address limitation
Support IEEE 802.1d (STP) and 802.1w (RSTP) Spanning Tree Protocol
Support IGMP v1/v2 Snooping and Proxy, support CTC controlled multicast
Support priority queue scheduling, support SP, WRR, or SP+WRR scheduling algorithm
Support port speed limit, support data packet filtering
Supports port mirroring and uplink port aggregation
Provides logging, alarm and performance statistics
Support SNMP v1/v2c network management
Support remote system update, ONU batch update, system log management and customized change