Juniper EX4300 Series User Manual

Removing a DC Power Supply from an EX4300 Switch | 299
Installing a DC Power Supply in an EX4300 Switch | 301
Removing an AC Power Supply from an EX4300 Switch
Before you remove a power supply from an EX4300 switch, ensure that you have taken the necessary
precauons to prevent electrostac discharge (ESD) damage (see Prevenon of Electrostac Discharge
Damage ).
Ensure that you have the following parts and tools available to remove a power supply from an EX4300
switch:
• ESD grounding strap
• Phillips (+) screwdriver, number 2 (not provided)
• Anstac bag or an anstac mat
• Replacement power supply or a cover panel for the power supply slot
The power supplies in EX4300 switches are hot-removable and hot-insertable eld-replaceable units
(FRUs) installed in the rear panel of the switch: You can remove and replace them without powering o
the switch or disrupng switch funcons.
CAUTION: We recommend that you install either a replacement power supply or a
cover panel in the empty power supply slot to prevent chassis overheang and dust
accumulaon.
NOTE: The power supply slots are at the right end of the rear panel on 24-port and 48-port
switches, and at the le end on 32-port switches. Figure 88 on page 297 shows how to remove
an AC power supply from 24-port or 48-port switches. The procedure is the same for 32-port
switches.
1. Place the anstac bag or the anstac mat on a at, stable surface.
2. Aach the ESD grounding strap to your bare wrist, and connect the strap to the ESD point on the
chassis.
296

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