Juniper SRX4100, Руководство по оборудованию

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CHAPTER 18
Replacing DC Power Supplies
• Removing a DC Power Supply from an SRX4100 Services Gateway on page 71
• Installing a DC Power Supply in an SRX4100 Services Gateway on page 72
Removing a DC Power Supply from an SRX4100 Services Gateway
The power supplies are hot-removable and hot-insertable field-replaceable units (FRUs)
installed in the rear panel of the services gateway. You can remove and replace them
without powering off the services gateway or disrupting services gateway functions.
Ensure that you have the following parts and tools available:
• ESD grounding strap
•
Phillips (+) screwdriver, number 2
•
Antistatic bag or an antistatic mat
• Replacement power supply
To remove a DC power supply (see Figure 22 on page 72 ):
1.
Place the antistatic bag or the antistatic mat on a flat, stable surface.
2.
Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
point on the chassis.
3.
Make sure that the voltage across the DC power source cables leads is 0 V and that
there is no chance that the cables might become active during the removal process.
4.
Remove the plastic cover from the input terminals by sliding the cover either to the
left or right.
5.
Unscrew the locking screws counterclockwise by using the screwdriver.
6.
Remove the cable lugs from the input DC terminals.
7.
Slide the ejector lever toward the left until the power supply is unseated.
71 Copyright © 2017, Juniper Networks, Inc.