Before you install an AC power supply in the device, ensure that you understand how to
prevent ESD damage. See “Prevention of Electrostatic Discharge Damage” on page 192.
Ensure that you have the following parts and tools available to install an AC power supply
in a QFX3008-I Interconnect device:
•
Electrostatic discharge (ESD) grounding strap
•
Phillips (+) screwdriver, number 1
To install an AC power supply in a QFX3008-I Interconnect device (see Figure 97 on
page 326):
1. Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
point on the chassis.
2. Taking care not to touch power supply components, pins, leads, or solder connections,
remove the power supply from its bag.
3. Unscrew the captive screw, located at the top of each power supply, counterclockwise
using your fingers. If you cannot easily unscrew the captive screw with your fingers,
use the screwdriver.
4. Pull the handle away from the faceplate of the power supply until it is perpendicular
to the faceplate.
5. Using both hands, place the power supply in the power supply slot on the rear of the
device. Slide the power supply straight into the chassis until the power supply is fully
seated in the slot. Ensure that the power supply faceplate is flush with any adjacent
power supply faceplates.
6. Push the captive screw into the power supply faceplate. Ensure that the screw is
seated inside the corresponding hole on the faceplate.
7. Tighten the captive screw using your fingers. When the screw is completely tight, the
latch locks into the device chassis.
325Copyright © 2012, Juniper Networks, Inc.
Chapter 26: Replacing QFX3008-I Components
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