Juniper EX4400 - Mount an EX4400 Switch Flush with the Front Posts of a Four-Post Rack or Cabinet

7. Ensure that the switch chassis is level by verifying that all screws on one side of the rack align with
the screws on the other side.
8. Cover the empty extension module slot and empty power supply slot by using the covers that came
with the switch.
NOTE: The slot covers reduce the risk of objects or substances entering the chassis. They also
ensure opmal cooling for the switch.
Mount an EX4400 Switch Flush with the Front Posts of a Four-Post Rack
or Cabinet
You can mount an EX4400 switch ush with the front posts of a 19-in. four-post rack by using a
separately orderable four-post rack mount kit (part number: EX-4PST-RMK). (The remainder of this topic
uses rack to mean rack or cabinet.)
Before you mount an EX4400 switch ush with the front posts of a 19-in. four-post rack:
• Verify that the site meets the requirements described in "Site Preparaon Checklist for EX4400
Switches" on page 115.
• Place the rack in its permanent locaon, allowing adequate clearance for airow and maintenance,
and secure the rack to the building structure.
• Read Juniper Networks Safety Guide, with parcular aenon to Chassis and Component Liing
Guidelines.
• Ensure that you have taken the necessary precauons to prevent electrostac discharge (ESD)
damage (see Prevenon of Electrostac Discharge Damage).
• Remove the switch from the shipping carton (see "Unpack an EX4400 Switch" on page 143).
Ensure that you have the following parts and tools available:
• Number 2 Phillips (+) screwdriver—not provided
• Eight screws to secure the mounng brackets to the rack—not provided
• An ESD grounding strap—not provided
• Front mounng bracket assembly to mount the switch ush with the front posts of a rack—2
(provided with the four-post rack mount kit)
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