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 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 device to protect the hardware components.
Table 18 on page 100 provides the required environmental conditions for normal switch operation.
Table 18: QFX5100 Switch Environmental Tolerances
ToleranceDescription
No performance degradation to 6,562 feet (2000 meters)Altitude
Normal operation ensured in relative humidity range of 5% through 90%,
noncondensing
•
Short-term operation ensured in relative humidity range of 5% through
93%, noncondensing
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.
Relative humidity
•
Normal operation ensured in temperature range of 32° F through 104° F
(0° C through 40° C)
NOTE: Customers with QFX5100-48T switches should ensure the room
temperature does not exceed a 2° C increase or decrease per minute.
•
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
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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