Ubiquiti US-8 User Manual

8-Port PoE-Powered Gigabit
Switch with PoE Passthrough

Model: US-8

Introduction

Thank you for purchasing the Ubiquiti Networks® UniFi® 8-Port
PoE-Powered Gigabit Switch with PoE Passthrough. This Quick
Start Guide is designed to guide you through the installation
and also includes the warranty terms.

Package Contents

UniFi Switch

Mounting Screws

(Qty. 2)

Screw Anchors

(Qty. 2)

8-Port PoE-Powered Gigabit
Switch with PoE Passthrough

Model: US-8

Power Adapter* Power Cord* Quick Start Guide

* Power Adapter and Power Cord are not included with US-8 5-Pack

System Requirements

• Linux, MacOSX, or Microsoft Windows 7/8/10

• Java Runtime Environment 1.6 (1.8 or newer recommended)

• Web Browser: Google Chrome (Other browsers may have
limited functionality)

• UniFi Controller software v5.3.x (or newer), available at:

downloads.ubnt.com/unifi

TERMS OF USE: All Ethernet cabling runs must use CAT5 (or above). It is the customer’s

responsibility to follow local country regulations, including operation within legal frequency
channels, output power, indoor cabling requirements, and Dynamic Frequency Selection
(DFS) requirements.

Network Topology Requirements

USG-PRO-4
(DHCP Server)

UniFi Cloud Key

Remote Access to

UniFi Controller

• A DHCP-enabled network for the UniFi Switch to obtain an

IPaddress (connected devices will also obtain IP addresses

after deployment)

• A UniFi Cloud Key or management station running the UniFi
Controller software v5.3 (or newer), located either on-site

and connected to the same Layer2 network, or off-site in a
cloud or NOC

(UniFi Controller)

US-8

All UniFi devices support off-site management controllers.
For setup details, refer to the User Guide on the website:

documentation.ubnt.com/unifi

LAN

WAN

Internet

Sample Network Diagram

Hardware Overview

Front Panel

Ports 1-8

PoE OutPoE In

Port Description

Ports 1-8 RJ45 ports support 10/100/1000 Ethernet

PoE In

(Port 1)

PoE Out

(Port 8)

The UniFi Switch may be powered by PoE through the PoE In

port or by DC input using a 48V power adapter.

PoE can be enabled on the PoEOut port using the UniFi

Controller software. PoE passthrough supports 48V (2-pair).

connections.

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

PoE passthrough to port 8.
PoE output is Off by default. Enabling PoE

output requires 24W input power via PoE In or

DC input.

Back Panel

Reset

Button

DC InGround

Port Description

Ground Ancillary grounding point for enhanced ESD

DC In To power the switch by DC input, connect a 48V

Reset

Button

protection.

power adapter to the 48VDC port.

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.

LEDs

System

System LED

State Status

Flashing White Initializing.

Steady White Factory defaults, waiting for integration.

Alternating

White/Blue

Steady Blue Successfully integrated into a network

Flashing Blue This is used to locate a device.

Device is busy; do not touch or unplug it.
This usually indicates that a process such
as a firmware upgrade is taking place.

and working properly.

When you click Locate in the UniFi
Controller software, the System LED
will flash blue. The software will also
display the location of the UniFi Switch

on themap.

RJ45 LEDs

1 2 3 4 5 6 7 8

Link/Speed/Activity

PoE

OFF 48V

PoE

DOWN 10/100 1000

Link

LED

PoE

Link/
Speed/

Activity

State Status

Off PoE Disabled

Amber 48V Passive PoE

Off No Link

Link Established at 10/100Mbps

Amber

Flashing Indicates Activity

Link Established at 1 Gbps

Green

Flashing Indicates Activity

Side Panels

Ventilation Holes

WARNING: FAILURE TO PROVIDE PROPER VENTILATION

MAY CAUSE FIRE HAZARD. KEEP AT LEAST 20 MM OF
CLEARANCE NEXT TO THE VENTILATION HOLES FOR
ADEQUATE AIRFLOW.

WARNING: The US-8 must not be stacked. Do not place it

on top of another switch. Do not place anything on top
of the US-8.

Hardware Installation

The UniFi Switch can be mounted on a vertical surface or
placed on a desktop. Follow the Wall Mounting instructions to
mount the switch using the included screws and anchors.

WARNING: To reduce the risk of fire or electric shock, do

not expose the switch to rain or moisture.

Wall Mounting

1. Drill two 6 mm holes set 73.5 mm apart.

73.5 mm

2. Insert a Screw Anchor into each hole, and fasten a Screw
into each anchor.

3. Leave a clearance of approximately 3mm between the
screw head and the wall.

3 mm