Table 18 on page 47 provides the required environmental conditions for normal device
operation.
Table 18: QFX3500 Device Environmental Tolerances
ToleranceDescription
No performance degradation to 10,000 feet (3048 meters)Altitude
Normal operation ensured in relative humidity range of 5% through 85%, noncondensingRelative 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 temperaturein 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
Clearance Requirements for Airflow and Hardware Maintenance for a QFX3500 Device
on page 53
•
• Installing and Connecting a QFX3500 Device 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 system functions properly
and that exhaust from other equipment does not blow into the intake vents of the
device.
47Copyright © 2017, Juniper Networks, Inc.
Chapter 5: Preparation Overview
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