This topic describes these tasks:
1.
How to Calculate the Power Consumption of Your PTX10008 Configuration | 167
2.
How to Calculate the Number of Power Supplies Required for Your PTX10008 Configuration | 169
How to Calculate the Power Consumption of Your PTX10008 Configuration
Use the following procedure to determine the maximum power you need to supply to the router. To
calculate maximum system power consumption, you first determine the combined maximum internal power
requirements of all the router components and then divide this result by the power supply output power.
To calculate maximum system power consumption:
1. Determine the maximum power consumption of the base chassis components (that is, the components
other than the line cards). Use Table 55 on page 167 if your router is configured as either the standard
base or redundant configuration.
Table 55: Chassis Power Consumption for Standard Configurations
Redundant ConfigurationBase ConfigurationChassis Component
950 W950 WJNP10008-FAN
1212 W1212 WJNP1008-FAN2
250 W125 WRouting and Control Board (RCB)
1350 W1125 WSwitch interface board (SIB)
2550 W or 2812 W depending on
the fan tray
2200 W or 2482 W depending on
the fan tray
Total
2. Calculate the maximum internal power consumption of the entire router by adding in the power
requirements of each line card. See Table 56 on page 167 for a chart of the power needed for line cards.
Table 56: Line Card Power Consumption
QFX10000-60S-6QPTX10K-LC1105PTX10K-LC1104PTX10K-LC1102PTX10K-LC1101
Number
of Line
Cards
455 W1250 W1050 W690 W1100 W1
910 W2500 W2100 W1380 W2200 W2
167
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