Figure 173: Installing A Replacement Two-Input 160-A Dc Power Supply - Juniper T640 Hardware Manual

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After a power supply is powered on, it can take up to 60 seconds

for status indicators—such as the output status LEDs on the power supply,

the command output displays, and messages on the LCD on the craft

interface—to indicate that the power supply is functioning normally. Ignore

error indicators that appear during the first 60 seconds.

After powering on a power supply, wait at least 60 seconds before

turning it off. If you have only one power supply, power off the system

before turning off the power supply.

Figure 173: Installing a Replacement Two-Input 160-A DC Power Supply

Chapter 29: Replacing Power System Components

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