Juniper EX4100 User Manual

EX4100 and EX4100-F Power System
IN THIS SECTION
AC Power Supply in EX4100 and EX4100-F Switches | 68
DC Power Supply in EX4100 Switches | 78
Power Supply LEDs in EX4100 Switches | 81
AC Power Supply in EX4100 and EX4100-F Switches
IN THIS SECTION
Characteriscs of an AC Power Supply | 69
Specicaons of the AC Power Supplies Used in EX4100 and EX4100-F Switches | 71
PoE Budget Planning | 73
AC Power Supply Airow | 74
Specicaons of the Power Cord for AC Power Supplies for EX4100 and EX4100-F Switches | 75
Juniper Networks ships EX4100 switches with one power supply installed in the rear panel. You can
install up to two power supplies in an EX4100 switch. The power supply slots are numbered 0 and 1,
and each slot has a power icon next to it. The power supplies support front-to-back airow or back-to-
front airow. They are fully redundant, load-sharing, hot-removable and hot-insertable eld-replaceable
units (FRUs). Hot-removable and hot-insertable mean that when the second power supply is installed
and running, you can remove and replace the power supplies without powering o the switch or
disrupng switch funcons. This topic describes the AC power supplies that EX4100 switches support.
68

Juniper EX4100 Specifications

General

Model	EX4100
Category	Switch
Layer	Layer 2/3
Power Consumption	Varies by model and configuration
PoE	Optional
Management	Web UI, CLI, SNMP
Operating Temperature	0°C to 45°C
Input Voltage	100-240V AC
Storage Temperature	-40°C to 70°C
Humidity	5% to 90% non-condensing
DC Power Input	-48V DC
JUNOS OS	Yes
Security Features	ACLs
Layer 2 Features	VLAN, RSTP, MSTP, LACP
Layer 3 Features	Static routing, OSPF
QoS	8 queues per port