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menuUS-24-250W, US-24-500W Quick Start Guide

Package Contents

UniFi Switch
Power Cord
Mounting Screws (Qty. 4)
Cage Nuts (Qty. 4)

Installation Requirements

Note: Although the cabling can be located outdoors, the UniFi Switch itself should be housed inside a protective enclosure.

IMPORTANT: We strongly recommend using UPS backup and power regulation to prevent equipment damage due to stability issues with local AC power.

System Requirements

Hardware Overview

System LED

Click here for detailed descriptions.

RJ45 PoE LED (Ports 1 - 24)


No PoE


IEEE 802.3af/802.3at


24V Passive PoE

RJ45 Speed/Link/Act LED (Ports 1 - 24)


No Link


Link Established at 10/100 Mbps

Flashing Indicates Activity


Link Established at 1000 Mbps

Flashing Indicates Activity

SFP Speed/Link/Act LED (Ports 1 - 2)


No Link


Link Established at 1 Gbps

Flashing Indicates Activity

RJ45 (Ports 1 - 24)

RJ45 ports support Power over Ethernet (PoE) and 10/100/1000 Ethernet connections.

SFP (Ports 1 - 2)

Hot-swappable SFP ports support 1 Gbps connections.

Reset Button

This button serves two functions for the UniFi Switch:

  • Restart Press and release the Reset button quickly.
  • Restore to Factory Default Settings Press and hold the Reset button for more than five seconds.

Back Panel

Console Port

RJ45 serial console port for Command Line Interface (CLI) management. Use an RJ45-to-DB9, serial console cable, also known as a rollover cable, to connect the Console port to your computer. Then configure the following settings as needed:

  • Baud rate 115200
  • Data bits 8
  • Parity NONE
  • Stop bits 1
  • Flow control NONE

Power Port

Connect the included Power Cord to the Power port.

Hardware Installation

  2. OR

Connecting Ethernet

Using SFP Ports

For information about compatible fiber SFP modules, visit: community.ubnt.com/unifi




485 x 43.7 x 285.4 mm (19.09 x 1.72 x 11.24")



US-24-250W 4.7 kg (10.4 lb)
US-24-500W 4.8 kg (10.6 lb)

Total Non-Blocking Line Rate

26 Gbps

Max. Power Consumption

US-24-250W 250W
US-24-500W 500W

Power Method

100-240VAC/50-60 Hz, Universal Input

Power Supply

US-24-250W AC/DC, Internal, 250W DC
US-24-500W AC/DC, Internal, 500W DC


Yes, 1U High

ESD/EMP Protection

Air: ± 24 kV, Contact: ± 24 kV

Shock and Vibration

ETSI300-019-1.4 Standard

LEDs Per Port

RJ45 Data Ports PoE, Speed/Link/Activity
SFP Data Ports Speed/Link/Activity


Networking Interfaces (24) 10/100/1000 Mbps RJ45 Ethernet Ports
(2) 1 Gbps SFP Ethernet Ports
Management Interface (1) RJ45 Serial Port Out-of-Band, Ethernet In-Band

Operating Temperature

-5 to 40° C (23 to 104° F)

Operating Humidity

5 to 95% Noncondensing



PoE Per Port

PoE Interfaces

PoE+ IEEE 802.3af/at (Pins 1, 2+; 3, 6-)

Max. PoE+ Wattage per Port by PSE


Voltage Range 802.3at Mode