Juniper EX4300 Series User Manual

Table 31: Airow Direcon in AC Power Supply Models for EX4300 Switches (Connued)
Model Label on
Power Supply
Direcon of Airow
JPSU-350-AC-AFI-A 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.
JPSU-715-AC-AFO-A 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.
JPSU-1100-AC-AFO-
A
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.
JPSU-1400W-AC-
AFO
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.
N+0 Redundancy Conguraon of AC Power Supplies
In an
N +0 redundancy conguraon, lower priority PoE ports may be impacted if a power supply fails.
Table 32 on page 96 lists the N +0 power calculaon for 24-port EX4300 switches that use 350 W,
715 W, and 1100 W power supplies.
Table 32: N+0 AC Power
Calculaons for 24-Port EX4300 Switches
Power Supply Rang Total Power
(in was)
PSU
0
(W) +
PSU
1
(W)
Usable
System
Power (in
was)
Backup
Power (in
was)
Base
Power (in
was)
Available
PoE Power
(in was)
Ports
Enabled for
PoE+
PSU
0
PSU
1
350 W AC –
350 350 0 150 200 6
350 W AC 350 W AC 700 665 0 150 515 17
96

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