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Power over Ethernet Ports

EX4100 and EX4100-F switches are available with or without Power over Ethernet (PoE) or Power over

Ethernet Plus (PoE+/PoE++) capability. Models that support PoE, PoE+, or PoE++ provide that support

on all of their RJ-45 downlink ports. The switch models provide perpetual and fast PoE funconality.

PoE, PoE+, and PoE++ ports provide electrical current to devices—such as IP phones, wireless access

points, and security cameras—through network cables. Because the network cables provide electrical

current, you do not need separate power cords for those devices.

1. The EX4100-24P and EX4100-48P switch models support PoE+ (30 W) by default.

2. The EX4100-F-24P and EX4100-F-48P switch models support PoE+ (30 W) by default.

3. The EX4100-24MP and EX4100-48MP switch models support PoE++ (90W) by default.

For more informaon about PoE support on EX series switches, see Understanding PoE on EX Series

Switches.

NOTE: IEEE 802.3at class 4 powered devices require category 5 or higher Ethernet cables.

EX4100 and EX4100-F Cooling System

The cooling system in EX4100 and EX4100-F switches consists of fan modules and built-in fans in the

power supplies. The airow direcon depends on the fan modules and power supplies installed in the

switch. You can order an EX4100 switch that supports front-to-back airow or back-to-front airow, as

follows:

• Front-to-back airow: Air enters through the front of the switch.

• Back-to-front airow: Air enters through the back of the switch.

The fan modules are hot-removable and hot-insertable eld-replaceable units (FRUs) installed in the rear

panel of the switch. You can remove and replace the FRUs without powering o the switch or disrupng

switch funcons.

EX4100-F-24P, EX4100-F-24T, EX4100-F-48P, and EX4100-F-48T switch models have built-in fans.

EX4100 and EX4100-F Power System

The following list presents the EX4100 and EX4100-F switch models with their compable power

systems:

• EX4100-48P and EX4100-24P use the 920W AC AFO (Airow Out) PSU (Power Supply Unit) FRUs.

Juniper EX4100 User Manual

Other manuals for Juniper EX4100