Juniper EX3300 Series User Manual

Table 22: Rack Requirements and Specifications for the Switch (continued)
GuidelinesRack Requirement
•
Ensure that the rack complies with standard defined for 19-in. rack as defined in Cabinets, Racks,
Panels, and Associated Equipment (document number EIA-310–D) published by the Electronics
Industry Association (http://www.eia.org).
•
Ensure thatthe rack rails are spaced widely enough to accommodate the switch chassis' external
dimensions . The outer edges of the front-mounting brackets extend the width of the chassis to
19 in. (48.2 cm).
•
The rack must be strong enough to support the weight of the switch.
•
Ensure that the spacing of rails and adjacent racks allows for the proper clearance around the
switch and rack.
Rack size and strength
•
Secure the rack to the building structure.
•
If earthquakes are a possibility in your geographical area, secure the rack to the floor.
•
Secure the rack to the ceiling brackets as well as wall or floor brackets for maximum stability.
Rack connection to
building structure
One pair of mounting brackets for mounting the switch on two posts of a rack is supplied
with each switch. For mounting the switch on four posts of a rack or cabinet, you can
order a four-post rack-mount kit separately.
Related
Documentation
Chassis Physical Specifications for EX3300 Switches on page 5•
• Clearance Requirements for Airflow and Hardware Maintenance for EX3300 Switches
on page 50
• Rack-Mounting and Cabinet-Mounting Warnings on page 146
• Mounting an EX3300 Switch on Two Posts in a Rack or Cabinet on page 68
• Mounting an EX3300 Switch on Four Posts in a Rack or Cabinet on page 71
Cabinet Requirements for EX3300 Switches
You can mount the switch in a cabinet that contains a 19-in. rack.
Cabinet requirements consist of:
•
Cabinet size
•
Clearance requirements
•
Cabinet airflow requirements
Table 23 on page 49 provides the cabinet requirements and specifications for the switch.
Copyright © 2011, Juniper Networks, Inc.48
Complete Hardware Guide for EX3300 Ethernet Switches

Juniper EX3300 Series Specifications

General

Layer Support	Layer 2 and Layer 3
JUNOS OS	Yes
Ports	24 or 48 x 10/100/1000BASE-T ports
Uplink Ports	4 x 1GbE/10GbE SFP/SFP+ ports
Power Supply	AC or DC options
Stacking	Yes, up to 10 units
MAC Address Table Size	32, 000
Operating Humidity	10% to 90% non-condensing
PoE Support	Available on PoE models
Virtual Chassis	Yes, up to 10 units
Operating Temperature	32° to 104° F (0° to 40° C)