Juniper EX9208, Руководство по оборудованию, Страница: 105 / 396

Related
Documentation
General Safety Guidelines and Warnings on page 317
•
•
Mounting an EX9200 Switch on a Rack or Cabinet Using a Mechanical Lift on page 165
•
Mounting an EX9208 Switch on a Rack or Cabinet Without Using a Mechanical Lift on
page 168
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 37 on page 81 provides the required environmental conditions for normal switch
operation.
Table 37: EX Series Switch Environmental Tolerances
Environment Tolerance
Switch or
device
Seismic Temperature Relative Humidity Altitude
Complies with Zone 4
earthquake
requirements as per
GR-63, Issue 4. Normal operation ensured in the
temperature range 32° F (0° C)
through 104° F (40° C) at
altitudes up to 5,000 ft
(1,524 m).
For information about extended
temperature SFP transceivers
supported on EX2200 switches,
see
Pluggable Transceivers
Supported on EX2200 Switches .
Normal operation ensured in
the relative humidity range
10% through 85%
(noncondensing) No performance
degradation up to
5,000 feet
(1524 meters) EX2200-C
Complies with Zone 4
earthquake
requirements as per
GR-63, Issue 4. Normal operation ensured in the
temperature range 32° F (0° C)
through 113° F (45° C) Normal operation ensured in
the relative humidity range
10% through 85%
(noncondensing) No performance
degradation up to
10,000 feet
(3048 meters) EX2200
(except
EX2200-C
switches)
Complies with Zone 4
earthquake
requirements as per
GR-63, Issue 4. Normal operation ensured in the
temperature range 32° F (0° C)
through 104° F (40° C) Normal operation ensured in
the relative humidity range
10% through 85%
(noncondensing) No performance
degradation up to
5,000 feet
(1524 meters) EX2300-C
81 Copyright © 2017, Juniper Networks, Inc.
Chapter 6: Preparation Overview