Model HSGQ-E04R DDR 512M FLASH 16M Size (L*W*H) Product size:440mm×185mm×44mm Package size:520mm×372mm×87mm Weight ;5kg Uplink QTY 8 Copper 4*10/100/1000M auto-negotiable,RJ45 SFP 4 SFP slots PON QTY 4 PhysicalInterface 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 fuction