System DescriptionH3C S3600 Series Ethernet Switches Chapter 2 Hardware Description2-422.9.4 Attributes of 1000 Mbps SFP PortsThe S3600-52P-PWR-EI has four 1000 Mbps SFP ports which are numbered from 49to 52 (optical or electrical), the number or type of ports is optional. Note:The SFP module does not support PoE.SFP modules allow for great flexibility in networking because they are hot swappableand user configurable.Table 2-6 lists the available SFP modules. Note:The available 1000 Mbps SFP modules are subject to changes. For information on the latest moduleoptions, contact your sales agent.2.9.5 Power SubsystemI. AC-input powerRated voltage: 100 to 240 VAC; 50 to 60 HzMax. tolerance: 90 to 264 VAC; 50 to 60 HzII. DC-input powerVoltage: -53 to -55 VDC.2.9.6 PoEThe S3600-52P-PWR-EI switch provides PoE (Power over Ethernet), that is, to supply-48V DC power to the remote powered device (PD), such as IP phone, WLAN wirelessaccess points (AP), Security, Bluetooth AP, through the twisted pair cable. As the power sourcing equipment (PSE), S3600-52P-PWR-EI supportsIEEE802.3af standard, and is also compatible with PDs that is not conformed tothis standard.