Juniper EX3300 Series User Manual

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
switch.
•
Follow the prescribed ESD prevention procedures to avoid damaging the equipment.
Static discharge can cause components to fail completely or intermittently over time.
•
Install the device in a secure area, so that only authorized personnel can access the
device.
Related
Documentation
Prevention of Electrostatic Discharge Damage on page 158•
• Clearance Requirements for Airflow and Hardware Maintenance for EX2200 Switches
• Clearance Requirements for Airflow and Hardware Maintenance for EX3200 Switches
• Clearance Requirements for Airflow and Hardware Maintenance for EX3300 Switches
on page 50
• Clearance Requirements for Airflow and Hardware Maintenance for EX4200 Switches
• Clearance Requirements for Airflow and Hardware Maintenance for EX4500 Switches
• Clearance Requirements for Airflow and Hardware Maintenance for an EX6210 Switch
• Clearance Requirements for Airflow and Hardware Maintenance for an EX8208 Switch
• Clearance Requirements for Airflow and Hardware Maintenance for an EX8216 Switch
• Environmental Requirements and Specifications for EX Series Switches on page 45
• Clearance Requirements forAirflow and Hardware Maintenance for a QFX3500 Switch
• Environmental Requirements and Specifications for the QFX Series
Site Electrical Wiring Guidelines
This topic applies to hardware devices in the EX Series product family, which includes
switches and the XRE200 External Routing Engine.
This topic also applies to hardware devices in the QFX Series.
Table 20 on page 44 describes the factors you must consider whileplanningthe electrical
wiring at your site.
43Copyright © 2011, Juniper Networks, Inc.
Chapter 4: Site Preparation

Juniper EX3300 Series Specifications

General

Layer Support	Layer 2 and Layer 3
JUNOS OS	Yes
Ports	24 or 48 x 10/100/1000BASE-T ports
Uplink Ports	4 x 1GbE/10GbE SFP/SFP+ ports
Power Supply	AC or DC options
Stacking	Yes, up to 10 units
MAC Address Table Size	32, 000
Operating Humidity	10% to 90% non-condensing
PoE Support	Available on PoE models
Virtual Chassis	Yes, up to 10 units
Operating Temperature	32° to 104° F (0° to 40° C)