Item V1600D4-L Chassis Rack 1U 19 inch standard box Uplink Port 1000M QTY 4 Copper 2*10/100/1000M auto-negotiation SFP (independent) 2*SFP slots EPON Port QTY 4 Physical Interface SFP Slots Connector Type 1000BASE-PX20+ Max splitting ratio 1:64 Management Ports 1*10/100BASE-T out-band port, 1*CONSOLE port PON Port Specification Transmission Distance 20KM EPON port speed Symmetrical 1.25Gbps Wavelength TX 1490nm, RX 1310nm Connector SC/PC Fiber Type 9/125m SMF TX Power +2~+7dBm Rx Sensitivity -27dBm Saturation Optical Power -6dBm Management Mode SNMP, Telnet and CLI, EMS and WEB Management Function Fan Group Detecting; Port Status monitoring and configuration management; Layer2 switch configuration such as VLAN, RSTP,IGMP,QOS, etc; EPON management function: DBA,ONU authorization, ACL,QOS,etc; Online ONU configuration and management; User management; Alarm management. Layer2 Switch 16K Mac address; Support 4096 VLANs; Support port VLAN and protocol VLAN; Support VLAN tag/Un-tag ,VLAN transparent transmission; Support Vlan translation and QinQ; Support storm control based on port; Support port isolation; Support port rate limitation; Support 802.1D and 802.1W; Support static LACP; QOS based on port,VID,TOS and MAC address; Access control list; IEEE802.x flow control; Port stability statistic and monitoring; Onu switch in the same pon; Multicast IGMP snooping; 256 IP Multicast Groups; EPON Function Support port-based rate limitation and bandwidth control; In compliant with IEEE802.3ah standard; Up to 20KM transmission Distance; Support data encryption, multi-cast, port VLAN, separation,RSTP,etc; Support Dynamic Bandwidth Allocation (DBA); Support ONU auto-discovery/link detection/remote upgrade of software;