Installation ManualH3C S7500 Series Ethernet Switches Chapter 1 Product Overview1-23Note:z The S7500 series support a maximum PoE input power of 2400 W.z If the PSE2500-A3 is used, one rectifier can supply 1250 W, two 2400 W, and threein 2+1 redundancy mode also 2400 W at an input voltage of 100 to 140 VAC. Onerectifier can supply 2500 W at a voltage of 200 to 240 VAC and two power modulesare required for redundancy backup.z The S7500 series provide power through Ethernet electrical ports on thePoE-capable cards, with a maximum PoE distance of 100 m (328 ft.).1.5.6 Fan TrayThe fan tray is located on the right side of the S7500 series. The fan tray is directlyconnected to the backplane through a connector. All fan fault signals flow to thebackplane and then the backplane sends them to the SRPU for processing. The fantray is hot swappable.Fan trays of the S7506R, S7503, and S7506 are slightly different. Fan trays of theS7506R and S7503 are fixed by screws, while the fan tray of the S7506 is fixed by twolocks.(1)(2)(3)(1) LPU slot number (0 to 3) (2) Captive screw(3) FanFigure 1-16 Fan tray of the S7503
