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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 1 provides the required environmental conditions for normal device operation.

Table 1: QFX3600 and QFX3600-I Device Environmental Tolerances




No performance degradation to 10,000 feet (3048 meters)

Relative humidity

Normal operation ensured in relative humidity range of 5% through 85%, noncondensing


  • 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)


    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)


Designed to comply with Zone 4 earthquake requirements per NEBS GR-63-CORE, Issue 3.


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.