Model : EPT1004GH DDR : 512M FLASH : 16M Uplink QTY : 8 Copper : 4*10/100/1000Mauto-negotiable,RJ45 QTY : 4 Physical Interface : 4 SFP slots Connector Type : 1000BASE-PX20+/PX20++/PX20+++ Max splitting ratio : 1 : 64 Management Ports : CONSOLE port/NMS PORT Power Input AC: 100V~240V AC 47/63Hz Support standard : IEEE 802.3ah EPON IEEE802.3(10Base-T) IEEE802.3u(100Base-TX) IEEE802.3z(1000BASE-X) IEEE802.3ab(1000Base-T) IEEE802.1Q(VLAN) IEEEE802.1d(STP) IEEEE802.1W(RSTP) IEEE802.1p(COS) IEEE802.1x(Port Control) IEEE802.3x(flow-control) Each OLT interface supports at most 64 ONU; Transmission distance of each OLT is at most 20Km PON function : Support auto register and confirm Blacklist and whitelist onu DBA configure P2P ONU authorization Layer 2/3 function : VLAN,QinQ,link convergency, broadcast strom control Support at most 4094 VLAN;performance statistic 16K MAC address;mac address management Port mirror / Static Trunk Support RSTP Storm control Support IGMP Snooping/proxy Support 512 router hosts Support 64 router subnets Limit quantity of maximum user at each port Port isolation Packe storm control ACL access control based on data stream QoS based on port, VID, TOS and MAC address; Encrytion of PON port transmitting data Configuration and Management : SNMP/NMS WebGUI management CLI, SNMP, TELNET,cluster etc. SSHv1/v2 Software and bootrom upgrade by TFTP and FTP Local server syslog to record system log Chinese/English command prompt Ping and traceroute Debug/Log management User management; Alarm management. Lightning : Service port has lightning protection Maintenance : Telnet remote maintenance Temperature : -10?~60? Humidity : 5%~95%