Juniper Networks manual Mounting an EX8208 Switch on a Rack or Cabinet

Complete Hardware Guide for EX8208 Ethernet Switches

Mounting an EX8208 Switch on a Rack or Cabinet

The EX8208 switch ships installed with front-mounting brackets on the chassis for mounting the switch on a 19-in. equipment rack or cabinet. The switch also comes with adjustable mounting brackets to support it in the rack.

In a four-post rack, the switch consumes 14 U without the optional power cord tray and 15 U with the optional power cord tray. In a two-post rack, the power cord tray is mandatory. The switch with the power cord tray consumes 15 U. You can mount up to three switches on a 42 U four-post rack or on a 45 U two-post rack provided that the racks meet the strength requirements to support the combined weight of the switches.

NOTE: If you are mounting multiple switches on a rack or cabinet, mount a switch on the bottom of the rack or cabinet first and then mount the rest of the switches from bottom to top.

WARNING: If you install the switch without using a mechanical lift, at least three people must be available to lift the unloaded switch chassis (all components except the backplane removed) onto the adjustable mounting brackets (in a four-post rack or cabinet) or onto the lip of the power cord tray (in a two-post rack or cabinet).

CAUTION: Do not install line cards in the chassis until after you mount the chassis securely on a rack or cabinet.

Before mounting an EX8208 switch on a rack or cabinet:

•Verify that the site meets the requirements described in “Site Preparation Checklist for an EX8200 Switch” on page 91.

•Place the rack or cabinet in its permanent location, allowing adequate clearance for airflow and maintenance, and secure it to the building structure. See “Clearance RequirementsforAirflowandHardwareMaintenanceforanEX8208Switch”onpage101 for detailed information.

•Read “General Safety Guidelines and Warnings for EX Series Switches” on page 263, withparticularattentionto“ChassisLiftingGuidelinesforEX8200Switches”onpage276.

•Remove the switch from the shipping box (see “Unpacking an EX8200 Switch” on page 126).

Ensure that you have the following parts and tools available to mount the switch on a rack or cabinet:

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

138 Copyright © 2010, Juniper Networks, Inc.