Juniper EX4300 Series User Manual

Table 26: Status LED on the Ports on the 4-Port 1-Gigabit Ethernet SFP/10-Gigabit Ethernet SFP+
Uplink Module for EX4300-48MP and EX4300-48MP-S Switches
LED LCD Indicator State and Descripon
Status Green Indicates the speed. The speed indicator is:
• Steadily green—1 or 10 Gbps
Cooling System and Airow in an EX4300 Switch
IN THIS SECTION
Fan Modules | 83
Airow Direcon in EX4300 Switch Models | 84
Front-to-Back Airow | 86
Back-to-Front Airow | 88
Do Not Mix AIR IN (AFI) and AIR OUT (AFO) Components in the Switch | 88
Posioning the Switch | 89
Fan Module Status | 89
The cooling system in an EX4300 switch consists of two fan modules and a single fan in each power
supply. EX4300 switches provide back-to-front airow (air enters through the back of the switch),
indicated by the label AIR IN (AFI), or front-to-back (air exhausts through the back of the switch),
indicated by the label AIR OUT (AFO)—depending on the fan modules and power supplies installed in
the switch.
This topic describes:
82

Juniper EX4300 Series Specifications

General

Product Series	EX4300 Series
Power Consumption	Varies by model and configuration
Virtual Chassis Technology	Up to 10 switches
Software	Junos OS
Ports	24-port and 48-port models
10GBASE SFP+ Ports	Up to 8 ports
40GBASE QSFP+ Ports	2
Uplink Ports	Up to 4 ports
Jumbo Frames	Up to 9216 bytes
Operating Temperature	0°C to 45°C
Relative Humidity	5% to 90% noncondensing
Input Voltage	100 to 240V AC
Power Supply	AC or DC
Power Supply Options	AC or DC
Stacking	Yes
Layer 2 Features	Includes VLAN, STP, RSTP, MSTP, LACP
Layer 3 Features	OSPF, BGP
Management	CLI, Web GUI, SNMP
Security Features	DHCP snooping
QoS	8 queues per port, DSCP
Storage Temperature	-40°C to 70°C