81Appendix D Cooling systemTo dissipate heat timely and ensure system stability, the switch uses high-performance coolingsystem. Consider the site ventilation design when you plan the installation site for the switch.• The S5560X-34S-EI and S5560X-54S-EI switches use fixed fan trays and the airflow directionis from left to right. (Left and right refer to the directions when you face the port side panel of theswitch.)• The S5560X-EI switches except the S5560X-34S-EI and S5560X-54S-EI use hot-swappablefan trays. They provide airflow from the port side to the power module side or from powermodule side to the port side by using different types of fan trays. You must install two fan trays ofthe same model for each of these switches. See Table 44 for fan trays available for theswitches.Table 44 Hot-swappable fan trays available for the switchesDevice model Fan tray Airflow directionS5560X-30C-EIS5560X-54C-EIS5560X-30F-EIS5560X-54F-EIS5560X-30C-PWR-EIS5560X-54C-PWR-EILSPM1FANSA From the power module side to the port side and chassis sidesLSPM1FANSB From the port side and chassis sides to the power module sideFigure 73 Airflow through the switch with fixed fan trays (S5560X-34S-EI)
