58 Technical specificationsTable 8Ethernet Routing Switch 8306 physical specifications (cont’d.)Physical specificationsWeight (fully loaded): 140 lb (63 kg)Cooling system:Fan tray: 1 per chassisFans: 6 per fan trayThermal sensors: 1 per fan trayEnvironmental specificationsThe following table lists the environmental specifications of the EthernetRouting Switch 8306 chassis.Table 9Ethernet Routing Switch 8306 environmental specificationsEnvironmental specificationsOperating temperature: 0