Ubiquiti US-48 User manual

Managed Gigabit Switch
with SFP
Models: US-24, US-48
/
/

Introduction
Thank you for purchasing the Ubiquiti Networks® UniFi®
Switch. This Quick Start Guide is designed to guide you
through the installation and also includes the warranty terms.
Package Contents
or
US-24 US-48
Power Cord Rack-Mount Brackets
(Qty. 2)
Bracket Screws
(Qty. 8)
ManagedGigabit Switch
withSFP
Models:US-24, US-48
/
/
Mounting Screws
(Qty. 4)
Cage Nuts
(Qty. 4)
Rubber Feet
(Qty. 4)
Quick Start
Guide
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 v4.8.5 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
• 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 v4.8.5 (or newer) software, located either on-site
and connected to the same Layer2 network, or off-site in the
cloud or NOC
US-24
USG-PRO-4
(DHCP Server)
Internet
UAP-AC-PRO
UAP-AC-Outdoor
UAP-AC-LR
LAN
WAN
UniFi Cloud Key
(UniFi Controller)
Remote Access to
UniFi Controller
Sample Network Diagram
All UniFi devices support off-site management controllers.
For setup details, refer to the User Guide on the website:
documentation.ubnt.com/unifi

Hardware Overview
Ethernet Ports
SFP 1-2
Reset
Button
RJ45 1-48
Model US-48
SFP+ 1-2
Port Description
RJ45
1-24 (US-24)
1-48 (US-48)
RJ45 ports support 10/100/1000 Ethernet
connections.
SFP+ 1-2
(US-48 only)
Hot-swappable SFP+ ports support 10 Gbps
connections.
SFP 1-2 Hot-swappable SFP ports support 1 Gbps
connections.
Reset
Button
This button serves two functions for the
UniFi Switch:
• Press and release the Reset button to
restart the device.
• Press and hold the Reset button (for at least
five seconds) to restore the device to its
factory default settings.

LEDs
Model US-48
System LED
SFP+
Link/Speed/Activity
SFP
Link/Speed/Activity
RJ45
Link/Speed/Activity
System LED
State Status
Flashing White Initializing.
Steady White Factory defaults, waiting for integration.
Alternating
White/Blue
Device is busy; do not touch or unplug it.
This usually indicates that a process such
as a firmware upgrade is taking place.
Steady Blue Successfully integrated into a network
and working properly.
Flashing Blue
This is used to locate a device.
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
LED State Status
Link/
Speed/
Activity
Off No Link
Amber
Link Established at
10/100Mbps
Flashing Indicates Activity
Green
Link Established at
1000Mbps (1 Gbps)
Flashing Indicates Activity
SFP+ LEDs (Model US-48)
LED State Status
Link/
Speed/
Activity
Off No Link
Green Link Established at 1Gbps
Flashing Indicates Activity
White Link Established at 10 Gbps
Flashing Indicates Activity
SFP LEDs
LED State Status
Link/
Speed/
Activity
Off No Link
Green Link Established at 1Gbps
Flashing Indicates Activity
*640-00237-04*
640-00237-04

Back Panel Ports
Model US-24
DC Input
Console Power
Model US-48
Console PowerDC Input
Port Description
Console 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
DC Input The 25VDC input can connect a redundant or
stand-alone DC power source (not included) with
minimum power: 25W (US-24) or 56W (US-48), 25
to 16V, and 2.5 mm DC power inline connector.
Note: You can use the redundant DC
power source as a hot spare; if the internal
AC/DC power supply no longer provides
power, then the EdgeSwitch Lite will
switch to the DC power source without
interrupting its operation.
Power Connect the included Power Cord to the
Powerport.

Hardware Installation
The UniFi Switch should be placed on a horizontal surface.
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: To reduce the risk of fire or electric shock, do
not expose the UniFi Switch to rain or moisture.
Mounting in a Rack (Optional)
1. Attach the Rack-Mount Brackets to the UniFi Switch using
the eight Bracket Screws.
2. Attach the UniFi Switch to the rack using the four Mounting
Screws. (If the rack has square slots, then use the Cage Nuts
with the Mounting Screws.)

Connecting Power
1. Connect the Power Cord to the power port on the back of
the UniFi Switch.
2. Plug the Power Cord into a power outlet.

Connecting Ethernet
1. Connect an Ethernet cable from your DHCP server or LAN
to any port on the UniFi Switch.
2. Connect your computer or host system and other devices
to the other ports on the UniFi Switch.