Juniper MX480, Руководство по оборудованию

Страница: 191 / 420

Removing the Power Supplies Before Installing the MX480 Router Without a Lift
Remove the leftmost power supply first and then work your way to the right. To remove
the AC or DC power supplies for each power supply (see
Figure 59 on page 191 ):
1.
Attach an ESD grounding strap to your bare wrist and connect the strap to one of the
ESD points on the chassis.
2.
On an AC-powered router, switch the AC input switch on each power supply to the
off (
O ) position. On a DC-powered router, Move the DC circuit breaker on each DC
power supply to the off ( O ) position.
We recommend this even though the power supplies are not connected to power
sources.
3.
Loosen the captive screws on the bottom edge of the power supply faceplate.
4.
Pull the power supply straight out of the chassis.
Figure 59: Removing a Power Supply Before Installing the Router
Removing the Fan Tray Before Installing the MX480 Router Without a Lift
To remove the fan tray (see Figure 60 on page 192 ):
1.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
the strap to an approved site ESD grounding point. See the instructions for your site.
2.
Loosen the captive screws on the fan tray faceplate.
3.
Grasp the fan tray handle, and pull it out approximately 1 to 3 inches.
191 Copyright © 2019, Juniper Networks, Inc.
Chapter 3: Initial Installation and Configuration