89Appendix D Cooling systemTo dissipate heat timely and ensure system stability, the switch uses high-performance cooling system.Consider the site ventilation design when you plan the installation site for the switch.• The S5560-30S-EI and S5560-54S-EI switches use fixed fan trays. Ambient air flows in through theleft side panel and exhausts through the right side panel.• The S5560-E1 switches, excluding the S5560-30S-EI and S5560-54S-EI switches, usehot-swappable fan trays. You can provide airflow from the power module side to the port side orfrom the port side to the power module side for the switch by using different fan trays. For heatdissipation, install two fan trays of the same model for the switch.Table 40 Cooling system for the S5560-E1 switches (excluding S5560-30S-EI and S5560-54S-EI)Switch model Available fan tray Airflow directionS5560-30C-EIS5560-30C-PWR-EIS5560-30F-EIS5560-34C-EIS5560-54C-EIS5560-54C-PWR-EILSPM1FANSA From the power module side to the port side and twosides of the chassisLSPM1FANSB From the port side and two sides of the chassis to thepower module sideS5560-54QS-EILSPM1FANSA From the power module side to the port sideLSPM1FANSB From the port side to the power module sideFigure 83 Airflow through the S5560-30S-EI switch (with fixed fan trays)
