Juniper EX9214 Hardware Manual page 218

EX9214 Switch Hardware Guide
194
Before you install a DC power supply in the switch:
Ensure you understand how to prevent Electrostatic discharge (ESD) damage. See
"Prevention of Electrostatic Discharge Damage" on page
Ensure that the voltage across the DC power source cable leads is 0 V and that there
is no chance that the cable leads might become active during installation.
Ensure that you have the following parts and tools available:
ESD grounding strap
Phillips (+) screwdriver, number 1
To install a DC power supply in an EX9214 switch:
Attach the ESD grounding strap to your bare wrist, and connect the strap to the ESD
1.
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.
Move the DC circuit breaker on the power supply faceplate to the Off
4.
Check whether the release lever below the empty power supply slot is locked in the
5.
counterclockwise direction (see
locking pin in the release lever away from the chassis and turn the release lever in the
counterclockwise direction until it stops, and then let go of the locking pin in the release
lever, and ensure that it is seated in the corresponding hole in the chassis.
Using both hands, slide the power supply straight into the chassis until the power
6.
supply is fully seated in the slot on the rear of the switch. The small tab on the metal
housing that is controlled by the release lever must be inside of the corresponding
slot at the bottom of the power supply (see
power supply faceplate is flush with any adjacent power supply faceplates or power
supply cover panels.
329.
Figure 65 on page 195). If it is not, pull the spring-loaded
Figure 65 on page
Copyright © 2017, Juniper Networks, Inc.
position.
(O)
195). Ensure that the