Juniper EX8208 Complete Hardware Manual page 173

Copyright © 2010, Juniper Networks, Inc.
Ensure you understand how to prevent ESD damage. See "Prevention of Electrostatic
Discharge Damage on EX Series Switches" on page 298.
Ensure that you have the following parts and tools available to install a DC power supply
in an EX8200 switch chassis:
Electrostatic discharge (ESD) grounding strap
Phillips (+) screwdriver, number 1
To install a DC power supply in an EX8200 switch (see Figure 53 on page 148):
Attach the electrostatic discharge (ESD) grounding strap to your bare wrist, and
1.
connect the strap to the ESD point on the chassis.
If the power supply slot has a cover panel on it, unscrew the screw on the side of the
2.
cover panel in the counterclockwise direction using the Phillips (+) screwdriver, number
1, and remove the cover panel. Save the cover panel for later use.
Taking care not to touch power supply components, pins, leads, or solder connections,
3.
remove the power supply from its bag.
Flip the switch on the power supply to the Standby position.
4. Enable
Unscrew the captive screw in the counterclockwise direction using the Phillips (+)
5.
screwdriver, number 1.
Pull the captive screw away from the faceplate of the power supply to release the
6.
latch.
Pull the handle away from the faceplate of the power supply until it is perpendicular
7.
to the faceplate.
NOTE: Power supplies can be installed in any slot. You do not have to
install the power supplies in serial order.
Using both hands, place the power supply in the power supply slot on the front of the
8.
switch. Slide the power supply straight into the chassis until the power supply is fully
seated in the slot. Ensure the power supply faceplate is flush with any adjacent power
supply faceplates or power supply cover panels.
Push the handle towards the faceplate of the power supply until it is flush against the
9.
faceplate.
Push the captive screw into the power supply faceplate. Ensure that the screw is
10.
seated inside the corresponding hole on the faceplate.
Tighten the captive screw by turning it clockwise using the Phillips (+) screwdriver,
11.
number 1. When the screw is completely tight, the latch locks into the switch chassis.
To connect power to a DC power supply, see "Connecting DC Power to an EX8200 Switch"
on page 171
Chapter 9: Installing Switch Components
147