Juniper EX4300 Hardware Guide

List of Figures
Part 1 Overview
Chapter 1 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Figure 1: Front Panel of a 24-Port EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2: Rear Panel of a 24-Port EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 3: Front Panel of a 32-Port EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4: Rear Panel of a 32-Port EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 5: Front Panel of a 48-Port EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 6: Rear Panel of a 48-Port EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 7: Components on the Front Panel of a 24-Port EX4300 Switch . . . . . . . . 13
Figure 8: Components on the Front Panel of a 32-Port EX4300 Switch . . . . . . . . 13
Figure 9: Components on the Front Panel of a 48-Port EX4300 Switch . . . . . . . . 14
Figure 10: Components on the Rear Panel of a 24-Port and 48-Port EX4300
Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 11: Components on the Rear Panel of a 32-Port EX4300 Switch . . . . . . . . . 15
Chapter 2 Chassis Components and Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 12: LCD Panel in EX4300 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 13: 4-Port 10-Gigabit Ethernet SFP+ Uplink Module . . . . . . . . . . . . . . . . . . 33
Figure 14: LEDs on the 4-Port 10-Gigabit Ethernet SFP+ Uplink Module . . . . . . . . 33
Figure 15: 2-Port 40-Gigabit Ethernet QSFP+ Uplink Module . . . . . . . . . . . . . . . . 34
Figure 16: LEDs on the 2-Port 40-Gigabit Ethernet QSFP+ Uplink Module . . . . . . 34
Figure 17: 8-Port 10-Gigabit Ethernet SFP+ Uplink Module . . . . . . . . . . . . . . . . . . 35
Figure 18: LEDs on the 8-Port 10-Gigabit Ethernet SFP+ Uplink Module . . . . . . . . 35
Figure 19: Chassis Status LEDs in an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . 36
Figure 20: LEDs on the Management Port on a 24-port EX4300 Switch . . . . . . . 38
Figure 21: LEDs on 10/100/1000BASE-T Network Ports . . . . . . . . . . . . . . . . . . . . 39
Figure 22: LEDs on SFP Network Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 23: LEDs on the Built-In QSFP+ Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Figure 24: LEDs on the SFP+ Uplink Ports and on the SFP+ Uplink Module Ports
on the 4-Port SFP+ Uplink Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 25: LEDs on the QSFP+ Uplink Module Ports . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 26: LEDs on the SFP+ Ports on the 8-Port SFP+ Uplink Module . . . . . . . . 40
Chapter 3 Cooling System and Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 27: Fan Module Used in an EX4300 Switch . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 28: Front-to-Back Airflow Through 24-Port and 48-Port EX4300 Switch
Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Figure 29: Front-to-Back Airflow Through 32-Port EX4300 Switch Chassis . . . . 46
Figure 30: Back-to-Front Airflow Through the 24-Port and 48-Port EX4300
Switch Chassis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
ixCopyright © 2017, Juniper Networks, Inc.

Juniper EX4300 Specifications

General

Model	EX4300
Virtual Chassis	Yes, up to 10 members
Layer 3 Routing	Yes
10GBASE SFP+ Ports	4
Jumbo Frames	9216 bytes
MAC Address Table Size	32, 000
Operating System	Junos OS
Uplink Ports	4 x 10GBASE SFP+
Power Supply	AC or DC options
Operating Temperature	0°C to 45°C (32°F to 113°F)
Input Voltage	100-240V AC
Operating Relative Humidity	5 to 90% RH, non-condensing
Management Options	CLI, Web UI, Junos Space
Redundancy	Yes, power supply and fans
Storage Temperature	-40°F to 158°F (-40°C to 70°C)
Ports	24 or 48