Juniper Networks EX8208 - Manual (Page 164)

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
Requirements for Airflow and Hardware Maintenance for an EX8208 Switch” on page 101
for detailed information.
• Read “General Safety Guidelines and Warnings for EX Series Switches” on page 263,
with particular attention to “Chassis Lifting Guidelines for EX8200 Switches” on page 276.
• 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
Copyright © 2010, Juniper Networks, Inc. 138
Complete Hardware Guide for EX8208 Ethernet Switches