Juniper EX4300 Series User Manual

Troubleshoong PoE Voltage Injecon Failure in EX2300, EX3400, or
EX4300 Switch Models with PoE Capability
IN THIS SECTION
Problem | 333
Soluon | 333
Problem
Descripon
Devices that draw power from EX2300, EX3400, or EX4300 switch models with Power over Ethernet
(PoE) capability do not get power from those switches. The problem persists aer reboong the
switches or upgrading to the latest version of Junos OS.
Environment
EX2300, EX3400, or EX4300 switch models with PoE capability are connected to EX2200, EX3200, or
EX4200 switch models with PoE capability by using RJ-45 network ports.
Soluon
When you connect EX2300, EX3400, or EX4300 switch models with PoE capability to EX2200,
EX3200, or EX4200 switch models with PoE capability by using RJ-45 network ports, disable PoE on all
the RJ-45 network ports used to connect the switches using the command:
user@device> set poe interface interface-name disable
SEE ALSO
Understanding PoE on EX Series Switches
333

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