Juniper EX4300 Series User Manual

• If one power supply is installed in the switch:
System power budget = Output waage of the installed power supply (PSU(W))
• If two power supplies are installed in the switch:
System power budget = (Sum of the output waage of the two power supplies) – (10% of the output
waage of the installed power supply)
System power budget = PSU
0
(W) + PSU
1
(W) – (0.10 x (PSU(W))
Table 49 on page 116 lists the N +0 power calculaon for EX4300 switches that use 550 W DC power
supplies.
NOTE: The DC power supply in the switch does not support Power over Ethernet (PoE); you can
use either an external power injector or an AC power supply to supply power to PoE devices that
you connect to the switch. 32-port EX4300 switches does not support Power over Ethernet
(PoE).
Table 49: N+0 DC Power Calculaons for EX4300 Switch Conguraons
Switch Conguraon Number of
Power Supplies
Total Power
(in was)
Usable System
Power (in
was)
Backup Power
(in was)
Base Power
(in was)
24-port EX4300 switch 1 550 550 0 150
2 1100 1045 550 150
32-port EX4300 switch 1 550 550 0 149
2 1100 550 550 160
48-port EX4300 switch 1 550 550 0 175
2 1100 1045 550 175
116

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