Juniper EX Series Complete Hardware Guide

Table 5: Front Panel LEDs in an EX 4200 Switch (continued)
State and DescriptionColorLED Label
■
On steadily—The switch is the master in the virtual
chassis configuration.
■
Blinking—The switch is the backup in the virtual chassis
configuration.
■
Off—The switch is a member (linecard member) in the
virtual chassis configuration.
GreenMST (Master)
Related Topics EX 4200 Switch—Front-Panel Description on page 11■
■ Power Supply in EX 3200 and EX 4200 Switches on page 27
EX-series Switch—Network Port LEDs
Each network port on the front panel of an EX-series switch has two LEDs.
Figure 10 on page 25 shows the network ports and the locations of the LEDs on the
port.
Figure 10: EX-series Switch—Network Port LEDs
The LEDs to the left of the port opening (labeled LED 1 in Figure 10 on page 25)
indicate link activity. The LEDs to the right of the port opening (labeled LED 2 in
Figure 10 on page 25) indicate the status of one of the four port parameters. The
port parameters are: administrative status; duplex mode; PoE status; and speed.
Table 6 on page 15 describes LED 1.
Table 6: EX-series Switch—Network Port LEDs–LED 1
State and DescriptionColorLED
No link or no link activity.UnlitLED 1
■
On steadily—The port is up and the link is active, but
there is no link activity.
■
Blinking—The port is up, with active links.
Green
EX-series Switch—Network Port LEDs ■ 15
Chapter 1: Switch Overview

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