Juniper Networks EX8208 manual Copyright 2010, Juniper Networks, Inc

Complete Hardware Guide for EX8208 Ethernet Switches

CAUTION: Before front-mounting the switch in a rack, have a qualified technician verify that the rack is strong enough to support the switch's weight and is adequately supported at the installation site.

Before you install the switch:

1.Prepare the site for installation as described in “Site Preparation Checklist for an EX8200 Switch” on page 91.

2.Ensure the site has adequate clearance for both airflow and hardware maintenance as described in “Clearance Requirements for Airflow and Hardware Maintenance for an EX8208 Switch” on page 101.

3.Unpack the switch as described in “Unpacking an EX8200 Switch” on page 126.

4.Remove all components except the backplane from the chassis. See:

•Removing an SRE Module from an EX8208 Switch on page 215

•Removing an SF Module from an EX8208 Switch on page 217

•Removing a Line Card from an EX8200 Switch on page 218

•Removing a Fan Tray from an EX8208 Switch on page 211

•Removing an AC Power Supply from an EX8200 Switch on page 207

5.In a two-post rack, install the power cord tray at the desired position (see “Installing the Power Cord Tray in a Rack or Cabinet for an EX8200 Switch” on page 135). The lip of the power cord tray will support the front of the chassis when you install the switch in the rack.

In a four-post rack, install the adjustable mounting brackets at the desired position (see “Installing Adjustable Mounting Brackets in a Rack or Cabinet for an EX8200 Switch” on page 132). Optionally, you can also install the power cord tray and use it to manage the power supply cords.

6.Review chassis lifting guidelines as described in “Chassis Lifting Guidelines for EX8200 Switches” on page 276.

Ensure that you have the following parts and tools available to install the switch:

•24 mounting screws appropriate for your rack

•A Phillips (+) screwdriver, number 2 or number 3, depending on the size of your rack mounting screws

144 Copyright © 2010, Juniper Networks, Inc.