Table 19 on page 45 provides the required environmental conditions for normal switch
operation for all QFX5110 models.
Table 19: QFX5110 Environmental Tolerances
ToleranceDescription
No performance degradation to 6562 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)
•
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.
Related
Documentation
QFX5110 Clearance Requirements for Airflow and Hardware Maintenance on page 55•
• Installing and Connecting a QFX5110 on page 75
General Site Guidelines
Efficient device operation requires proper site planning and maintenance and proper
layout of the equipment, rack or cabinet (if used), and wiring closet.
To plan and create an acceptable operating environment for your device and prevent
environmentally caused equipment failures:
•
Keep the area around the chassis free from dust and conductive material, such as
metal flakes.
•
Follow prescribed airflow guidelines to ensure that the cooling systemfunctions properly
and that exhaust from other equipment does not blow into the intake vents of the
device.
45Copyright © 2017, Juniper Networks, Inc.
Chapter 5: Preparation Overview
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