Juniper EX3300 Series User Manual

Environmental Requirements and Specifications for EX Series Switches
The switch must be installed in a rack or cabinet housed in a dry, clean, well-ventilated,
and temperature-controlled environment.
Ensure that these environmental guidelines are followed:
•
The site must be as dust-free as possible, because dust can clog air intake vents and
filters, reducing the efficiency of the switch cooling system.
•
Maintain ambient airflow for normal switch operation. If the airflow is blocked or
restricted, or if the intake air is too warm, the switch might overheat, leading to the
switch temperature monitor shutting down the switch to protect the hardware
components.
Table 21 on page 45 provides the required environmental conditions for normal switch
operation.
Table 21: EX Series Switch Environmental Tolerances
ToleranceDescription
No performance degradation to 10,000 feet (3048 meters)Altitude
Normal operation ensured in relative humidity range of 10% through
85%, noncondensing
Relative humidity
•
EX2200 (except EX2200-C models), EX3200, EX3300,EX4200,
and EX4500 switches: Normal operation ensured in temperature
range of 32° F through 113° F (0° C through 45° C)
•
EX2200-C switches:
•
At temperature range of 32° F through 104° F (0° C through
40° C) and at altitudes up to 5,000 ft (1,524 m), normal
operation is ensured.
•
At temperature ranges beyond 104° F through 113° F (40° C
up to 45° C) at altitudes up to 5,000 ft (1,524 m), extended
temperature range SFPs should be used when fiber uplinks
are used.
•
At temperature ranges beyond 95° F through 113° F (35° C up
to 45° C) and at altitudes beyond 5,000 ft (1,524 m) up to
10,000 ft (3,048 m), extended temperature range SFPs should
be used when fiber uplinks are used.
•
EX6210,EX8208, and EX8216 switches: Normal operation ensured
in temperature range of 32° F through 104° F (0° C through
40° C)
•
XRE200 External Routing Engines: Normal operation ensured in
temperature range of 41° F through 104° F (5° C through 40° C)
Temperature
Complieswith Zone 4 earthquake requirements as per GR-63, Issue
3.
Seismic
45Copyright © 2011, Juniper Networks, Inc.
Chapter 4: Site Preparation

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)