Calculating System Power Requirements; Calculating Ptx5000 Power Consumption; Power Requirements For Ptx5000 Components; Chapter 9 Calculating System Power Requirements - Juniper PTX5000 Hardware Manual

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Calculating System Power Requirements

Calculating PTX5000 Power Consumption on page 123

Use the information in this topic to determine the power consumption for your router

and plan the amount of power you need to provide to the router.

Your Juniper account team can also provide an interactive power

calculation tool for the PTX5000 to determine the minimum PSMs required

to support your system configuration.

Starting in Junos OS Release 14.1, new power management features

in Junos OS for PTX5000 ensure that the chassis power requirements do not

exceed the power available to the PTX5000.

Power management ensures that high-priority FPCs continue to receive

power when the system does not have sufficient power to keep all the

FPCs online.

If a power supply fails, Junos OS can bring low-priority FPCs offline to allow

high-priority FPCs to remain online.

For more information about configuring power management on the PTX5000,

see Understanding Power Management on the PTX5000 in the

Feature Guide

Power Requirements for PTX5000 Components on page 123

Calculating Power Consumption for your Configuration on page 125

Calculating System Thermal Output on page 126

Table 53 on page 124

describes the output power requirements for the required and

optional FRUs for the PTX5000. The power requirements vary depending on the ambient

air temperature for your installation.

Chassis-Level

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