Juniper QFX3500, Hardware Documentation

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Clearance Requirements for Airflow and Hardware Maintenance for a QFX5100 Device | 122
QFX5100 Standalone Installation Overview | 276
Environmental Requirements and Specifications for QFX3600 and
QFX3600-I Devices
The QFX3600 and QFX3600-I devices must be installed in a rack or cabinet housed in a dry, clean,
well-ventilated, and temperature-controlled environment.
Follow these environmental guidelines:
•
The site must be as dust-free as possible, because dust can clog air intake vents and filters, reducing the
efficiency of the device cooling system.
•
Maintain ambient airflow for normal device operation. If the airflow is blocked or restricted, or if the
intake air is too warm, the device might overheat, leading to the device temperature monitor shutting
down the device to protect the hardware components.
Table 19 on page 101 provides the required environmental conditions for normal device operation.
Table 19: QFX3600 and QFX3600-I Device Environmental Tolerances
Tolerance Description
No performance degradation to 10,000 feet (3048 meters) Altitude
Normal operation ensured in relative humidity range of 5% through 85%, noncondensing Relative humidity
•
Normal operation ensured in temperature range of 32° F through 104° F (0° C through
40° C)
•
Short-term operation ensured in temperature range of 23° F through 131° F (–5° C
through 55° C)
NOTE: As defined in NEBS GR-63-CORE, Issue 3, short-term events can be up to 96
hours in duration but not more than 15 days per year.
•
Nonoperating storage temperature in shipping container: –40° F through 158° F (–40° C
through 70° C)
Temperature
Designed to comply with Zone 4 earthquake requirements per NEBS GR-63-CORE, Issue
3.
Seismic
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