Juniper EX4300 Series User Manual

Table 27: Fan Modules in EX4300 Switches
Fan Module Label on the Fan Module
EX4300-FAN AIR OUT (AFO)
EX4300-FAN-AFI AIR IN (AFI)
Airow Direcon in EX4300 Switch Models
Table 28 on page 84 shows the direcon of airow in EX4300 switch models as shipped.
Table 28: Airow Direcon in EX4300 Switch Models
Model Number Fan Modules and Power Supply Direcon of Airow
• EX4300-24T
• EX4300-24P
• EX4300-32F
• EX4300-48T
• EX4300-48P
The switch ships with two fan
modules and an AC power supply,
each with a label AIR OUT (AFO).
Front-to-back—that is, air intake to
cool the chassis is through the vents
on the front panel of the chassis
and hot air exhausts through the
vents on the rear panel of the
chassis.
• EX4300-32F-DC
• EX4300-48T-DC
The switch ships with two fan
modules and a DC power supply,
each with a label AIR OUT (AFO).
Front-to-back—that is, air intake to
cool the chassis is through the vents
on the front panel of the chassis
and hot air exhausts through the
vents on the rear panel of the
chassis.
EX4300-48T-AFI The switch ships with two fan
modules and an AC power supply,
each with a label AIR IN (AFI).
Back-to-front—that is, air intake to
cool the chassis is through the vents
on the rear panel of the chassis and
hot air exhausts through the vents
on the front panel of the chassis.
84

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