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Ensure that these environmental guidelines are followed:
•
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 switch to protect the hardware
components.
Table 17 on page 37 provides the required environmental conditions for normal switch
operation.
Table 17: EX Series Switch Environmental Tolerances
ToleranceDescription
No performance degradation to10,000feet(3048 meters)Altitude
Normal operation ensuredin relativehumidity rangeof 10% through85%, noncondensingRelative humidity
•
EX2200,EX3200, EX4200,and EX4500 switches: Normal operation ensuredin temperature range of 32° F
through113° F (0°C through 45°C)
•
EX8208andEX8216 switches:Normal operationensuredintemperaturerangeof32° Fthrough104°F(0°C
through40° C)
•
XRE200 External RoutingEngines: Normal operation ensuredin temperaturerangeof 41° F through 104°F
(5° C through40° C)
Temperature
Complieswith Zone4 earthquakerequirements asper GR-63, Issue 3.Seismic
NOTE: Install EX Series switches only in restricted areas,such as dedicated
equipmentroomsandequipmentclosets,inaccordancewithArticles110–16,
110–17,and 110–18 of the National Electrical Code, ANSI/NFPA70.
Related
Documentation
• Clearance Requirementsfor Airflow and Hardware MaintenanceforEX2200 Switches
on page 42
• ClearanceRequirements forAirflowand Hardware MaintenanceforEX3200 Switches
• ClearanceRequirements forAirflow and Hardware Maintenance forEX4200 Switches
• ClearanceRequirementsforAirflowand HardwareMaintenanceforEX4500Switches
• ClearanceRequirementsforAirflowandHardwareMaintenanceforanEX8208Switch
• ClearanceRequirements forAirflow and Hardware Maintenanceforan EX8216 Switch
37Copyright©2010,Juniper Networks,Inc.
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