Juniper EX4300 Series User Manual

Table 28: Airow Direcon in EX4300 Switch Models (Connued)
Model Number Fan Modules and Power Supply Direcon of Airow
EX4300-48T-DC-AFI The switch ships with two fan
modules and a DC 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.
CAUTION: Do not mix:
• AC and DC power supplies in the same chassis
• Power supplies and fan modules with dierent airow labels (AIR IN (AFI) and AIR
OUT (AFO)) in the same chassis
• Fan modules with dierent airow labels (AIR IN (AFI) and AIR OUT (AFO)) in the
same chassis.
• Power supplies and fan modules with dierent airow labels (AIR IN (AFI) and AIR
OUT (AFO)) in the same chassis.
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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