Replacing A Side Air Filter On A T640 Ac Power Supply; Removing A Side Air Filter On A T640 Ac Power Supply; Figure 206: Installing A Front Air Filter Element - Juniper T640 Hardware Manual

Replacing a Side Air Filter on a T640 AC Power Supply

Removing a Side Air Filter on a T640 AC Power Supply

Copyright © 2017, Juniper Networks, Inc.

Figure 206: Installing a Front Air Filter Element

Removing a Side Air Filter on a T640 AC Power Supply on page 393
1.
Installing a Side Air Filter on a T640 AC Power Supply on page 394
2.
To remove an AC power supply side air filter:
NOTE: The router has either one nonredundant power supply or two
redundant, load-sharing power supplies. If you have only one power supply,
you must power off the system before removing the side air filter on an AC
power supply. Each redundant power supply is hot-removable and
hot-insertable. When a redundant power supply is powered down or removed,
the other power supply automatically assumes the entire electrical load for
the router.
Attach an electrostatic discharge (ESD) grounding strap to your bare wrist, and connect
1.
the strap to one of the ESD points on the chassis.
Switch the power switch on the power supply faceplate to the standby position.
2.
NOTE: After powering off a power supply, wait at least 60 seconds before
turning it back on.
Detach the ESD grounding strap from the ESD points on the chassis. Reattach the
3.
strap to an approved site ESD grounding point. Follow the instructions for your site.
Chapter 29: Replacing Power System Components
393