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menuUS-8 Quick Start Guide

Package Contents

UniFi Switch
Mounting Screws (Qty. 2)
Screw Anchors (Qty. 2)
Power Adapter*
Power Cord*

* Included only in the single-pack of the device

System Requirements

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

Hardware Overview

Front Panel

System LED

Click here for detailed descriptions.

PoE In (Port 1)

Supports 802.3af/at or 48V Passive PoE to power the switch and can provide 48V (2-pair) PoE passthrough to port 8.

PoE Out (Port 8)

48V (2-pair) PoE output is Off by default. Enabling PoE output (via the UniFi Network Application) requires 24W input power via PoE In or DC input.

RJ45 (Ports 1 - 8)

RJ45 ports support 10/100/1000 Ethernet connections.

Top Panel

PoE LED (Port 8)


PoE Disabled


48V Passive PoE

RJ45 Speed/Link/Act LED (Ports 1 - 8)


No Link


Link Established at 10/100 Mbps

Flashing Indicates Activity


Link Established at 1 Gbps

Flashing Indicates Activity

Back Panel


Ancillary grounding point for enhanced ESD protection.


To power the switch by DC input, connect a 48V power adapter to the 48VDC port.

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.

Hardware Installation

Wall Mounting (Optional)

Grounding (Recommended)

The UniFi Switch is grounded through the Power Adapter. When powering the switch with PoE, ground the device by connecting the ancillary ground.

  1. Loosen the ground screw and secure a ground wire (not included) to the grounding point.

  2. Secure the other end of the ground wire to a grounding block or other grounded structure.

Connecting Power


Connecting Ethernet

WARNING: Before enabling PoE passthrough in the UniFi Network Application, ensure that the connected PoE device supports the PoE power (48V).

WARNING: When both PoE In and DC Input are connected, the highest voltage power of the two will immediately pass through to PoE Out (if enabled).




148 x 99.5 x 30.7 mm
(5.83 x 3.92 x 1.21")


432 g (15.24 oz)

Networking Interfaces

(8) 10/100/1000 Mbps RJ45 Ports

PoE In (Port 1)


PoE Mode 1 802.3af/at (Pins 1, 2+; 3, 6-)
PoE Mode 2 48V (Pins 4, 5+; 7, 8-)

PoE Out (Port 8)


PoE Mode 1 48V (Pins 1, 2+; 3, 6-)
PoE Mode 2 Passive 48V (Pins 4, 5+; 7, 8-)
DC Input Mode DC Passthrough (Pins 1, 2+; 3, 6-)

Power Method

(1) DC 48V, Max. 1.25A

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

Power Supply

External AC/DC Adapter*: 100-240VAC, 50/60 Hz; 48V, 0.5A

Max. Power Consumption

12W (Excluding PoE Output)

Max. Passive PoE Wattage per Port


PoE Mode 1 12W @ 802.3at
PoE Mode 2 12W @ 48V
DC Input Mode 12W @ 48V

Passive PoE Voltage Range

Depends on Power Source

Line Rate

8 Gbps, Non-Blocking



System Status
RJ45 Data Ports PoE; Link/Speed/Activity

ESD/EMP Protection

± 24kV Air, ± 24kV Contact

Operating Temperature

-5 to 45° C (23 to 113° F)

Operating Humidity

5 to 95% Noncondensing



* Included only in the single-pack of the device.