Dell PowerConnect J-8216 Hardware Guide - Page 102

Dell PowerConnect J-Series J-EX8216 Ethernet Switch Hardware Guide • Ensure that you know the power requirements of different switch components. See "Power Requirements for J-EX8216 Switch Components" on page 82. This topic describes these tasks: • Calculating the Power Consumption of Your J-EX8216 Switch Configuration on page 86 • Calculating the System Thermal Output for Your J-EX8216 Switch Configuration on page 87 • Calculating the Number of Power Supplies Required for Your J-EX8216 Switch Configuration on page 88 Calculating the Power Consumption of Your J-EX8216 Switch Configuration Use the following procedure to determine the maximum power you need to supply to the switch. To calculate maximum system power consumption, you first determine the combined maximum internal power requirements of all the switch components and then divide this result by the power supply efficiency. To calculate maximum system power consumption: 1. Determine the maximum power consumption of the chassis components other than the line cards: • Use Table 40 on page 86 if your switch is configured for N+1 power redundancy. • Use Table 41 on page 87 if the power management software feature on your switch is configured for N+N power redundancy. NOTE: If power management is configured for N+N redundancy, the maximum fan speed is lowered, reducing the chassis' maximum power consumption. Table 40: Chassis Power Consumption for N+1 Configurations Chassis Component Redundant Configuration Two fan trays 1600 W Routing Engine (RE) module 100 W Second RE module 100 W Eight Switch Fabric (SF) modules 600 W Total 2400 W 86