Juniper EX Series Complete Hardware Guide

Table 28: Site Electrical Wiring Guidelines (continued)
GuidelinesSite Wiring Factor
If your site is susceptible to problems with electromagnetic
compatibility (EMC), particularly from lightning or radio
transmitters, you might want to 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 Topics ■ General Safety Guidelines and Warnings on page 130
■ General Electrical Safety Guidelines on page 153
■ Preventing Electrostatic Discharge Damage on page 138
■ Power Supply in EX 3200 and EX 4200 Switches on page 27
AC Power, Connection, and Power Cord Specifications
Detachable AC power cords are supplied with the switch. The appliance coupler at
the female end of the cord inserts into the AC appliance inlet on the faceplate of the
AC power supply. The coupler is type C19 as described by International
Electrotechnical Commission (IEC) standard 60320. The plug at the male end of the
power cord fits into the power source outlet that is standard for your geographical
location.
NOTE: In North America, AC power cords must not exceed 4.5 meters (approximately
14.75 feet) in length, to comply with National Electrical Code (NEC) Sections 400-8
(NFPA 75, 5-2.2) and 210-52 and Canadian Electrical Code (CEC) Section 4-010(3).
The cords supplied with the switch are in compliance.
Table 29 on page 56 lists AC power cord specifications provided for each country or
region.
Table 29: AC Power Cord Specifications
Plug StandardsElectrical SpecificationsCountry/Region
AS/NZ 3112–1993250 VAC, 10 A, 50 HzAustralia
GB2099.1 1996 and GB1002 1996
(CH1-10P)
250 VAC, 10 A, 50 HzChina
CEE (7) VII250 VAC, 10 A, 50 HzEurope (except Italy and United
Kingdom)
56 ■ AC Power, Connection, and Power Cord Specifications
Complete Hardware Guide for EX 3200 and EX 4200 Switches

Juniper EX Series Specifications

General

Series	EX Series
Category	Switch
Layer	Layer 2/3
Operating System	Junos OS
Managed	Yes
ACLs	Yes
Port Density	Varies by model
Power over Ethernet (PoE)	Available on some models
Virtual Chassis	Supported on some models
Form Factor	Fixed configuration, Modular
Switching Capacity	Varies by model
Forwarding Rate	Varies by model
Power Supply	Varies by model (AC or DC, redundant options available)
Management	CLI, Web UI, SNMP
Redundancy	Power supply, fan, Virtual Chassis
Latency	Varies by model
Jumbo Frames	Supported
VLAN Support	Yes
MAC Address Table Size	Varies by model
QoS	Yes
Energy Efficiency	EEE (802.3az)
Dimensions	Varies by model
Weight	Varies by model
Operating Temperature	0° to 45° C
Storage Temperature	-40° to 70° C
Humidity	5% to 90% non-condensing
MTBF	Varies by model
Warranty	Limited Lifetime