Juniper EX2200 Series User Manual

Table 18: Site Electrical Wiring Guidelines (continued)
GuidelinesSite Wiring Factor
To reduce or eliminate radio frequency interference (RFI) from your site wiring, do the following:
•
Use twisted-pair cable with a good distribution of grounding conductors.
•
If you must exceed the recommended distances, use a high-quality twisted-pair cable with
one ground conductor for each data signal when applicable.
Radio frequency
interference
If your site is susceptible to problems with electromagnetic compatibility (EMC), particularly from
lightning or radio transmitters, seek expert advice.
Some of the problems caused by strong sources of electromagnetic interference (EMI) are:
•
Destruction of the signal drivers and receivers in the switch
•
Electrical hazards as a result of power surges conducted over the lines into the equipment
Electromagnetic
compatibility
Related
Documentation
General Safety Guidelines and Warnings on page 155•
• General Electrical Safety Guidelines and Warnings on page 179
• Prevention of Electrostatic Discharge Damage on page 180
• Power Supply in EX2200 Switches on page 18
• Power Supply in EX3200 Switches
• Power Supply in EX3300 Switches
• Power Supply in EX4200 Switches
• AC Power Supply in EX4500 Switches
• DC Power Supply in EX4500 Switches
• AC Power Supply in an EX6200 Switch
• DC Power Supply in an EX6200 Switch
• AC Power Supply in an EX8200 Switch
• DC Power Supply in an EX8200 Switch
• Power Supply in a Redundant Power System
• AC Power Supply in a QFX3500 Switch
Environmental Requirements and Specifications for EX Series Switches
The switch must be installed in a rack or cabinet housed in a dry, clean, well-ventilated,
and temperature-controlled environment.
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.
Copyright © 2011, Juniper Networks, Inc.54
Complete Hardware Guide for EX2200 Ethernet Switches

Juniper EX2200 Series Specifications

General

Product Series	EX2200 Series
Operating Temperature	32° to 104° F (0° to 40° C)
Ports	24 or 48 10/100/1000 Ethernet ports, 4 SFP uplink ports
Storage Temperature	-40°F to 158°F (-40°C to 70°C)
JUNOS Software	JUNOS Software
Layer 2 Features	VLAN
Layer 3 Features	Static routing, RIP, OSPF, VRRP
Management	CLI, SNMP
Humidity	5% to 90% non-condensing