Environmental Requirements And Specifications For A Qfx3500 Device - Juniper QFX5110 Series Hardware Documentation

NOTE: Install QFX Series devices only in restricted areas, such as dedicated equipment rooms
and equipment closets, in accordance with Articles 110-16, 110-17, and 110-18 of the National
Electrical Code, ANSI/NFPA 70.
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Environmental Requirements and Specifications for a QFX3500 Device

The device 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 20 on page 102 provides the required environmental conditions for normal device operation.
Table 20: QFX3500 Device Environmental Tolerances
Description
Altitude
Relative humidity
Tolerance
No performance degradation to 10,000 feet (3048 meters)
Normal operation ensured in relative humidity range of 5% through 85%, noncondensing
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