UniFi Switch Power Cord Mounting Screws (Qty. 4)
Cage Nuts (Qty. 4)
Package Contents
Installation Requirements
Phillips screwdriver
Standard-sized, 19" wide rack with a minimum of 1U height available
For indoor applications, use Category 5 (or above) UTP cabling approved for indoor use.
For outdoor applications, shielded Category 5 (or above) cabling should be used for all
wired Ethernet connections and should be grounded through the AC ground of the power
supply.
We recommend that you protect your networks from harmful outdoor environments and
destructive ESD events with industrial-grade, shielded Ethernet cable from Ubiquiti. For
more details, visit: ui.com/toughcable
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
US-48-500W, US-48-750W Quick Start Guide
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Table of Contents
System LED
RJ45 PoE LED (Ports 1 - 48)
RJ45 Speed/Link/Act LED (Ports 1 - 48)
SFP+ Speed/Link/Act LED (Ports 1 - 2)
Linux, Mac OS X, or Microsoft Windows 7/8/10
Java Runtime Environment 1.6 (1.8 or newer recommended)
Web Browser: Mozilla Firefox, Google Chrome, Microsoft Edge, or Microsoft Internet
Explorer 11
UniFi Controller v5.4.x or higher
Hardware Overview
Click here for detailed descriptions.
Off No PoE
Amber IEEE 802.3af/802.3at
Green 24V Passive PoE
Off No Link
Amber
Link Established at 10/100 Mbps
Flashing Indicates Activity
Green
Link Established at 1000 Mbps
Flashing Indicates Activity
Off No Link
Green
Link Established at 1 Gbps
Flashing Indicates Activity
SFP Speed/Link/Act LED (Ports 1 - 2)
RJ45 (Ports 1 - 48)
SFP+ (Ports 1 - 2)
SFP (Ports 1 - 2)
Reset Button
Console Port
White Link Established at 10 Gbps
Flashing Indicates Activity
Off No Link
Green
Link Established at 1 Gbps
Flashing Indicates Activity
RJ45 ports support Power over Ethernet (PoE) and 10/100/1000 Ethernet connections.
Hot-swappable SFP+ ports support 1/10 Gbps connections.
Hot-swappable SFP ports support 1 Gbps connections.
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.
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
1.
2.
OR
3.
Connecting Ethernet
Using SFP+ and SFP Ports
Ports SFP+ Module Type SFP Module Type
SFP+ 1-2 10 Gbps 1 Gbps
SFP 1-2 (Not supported) 1 Gbps
1.
2.
3.
For information about compatible fiber SFP modules, visit: community.ubnt.com/unifi
Software Installation
Download and install the latest version of the UniFi Controller software at
ui.com/download/unifi and follow the on-screen instructions.
Note: If you already have UniFi Controller v5.4.x or higher installed, go to the section,
Adopting the UniFi Switch.
After you have installed the software and run the UniFi Installation Wizard, a login screen will
appear for the UniFi Controller management interface. Enter the username and password that
you created and click Sign In.
You can manage your network and view network statistics using the UniFi Controller
management interface.
To adopt the UniFi Switch, proceed to the section, Adopting the UniFi Switch.
For information on configuring and using the UniFi Controller software, refer to the User Guide
on the website: ui.com/download/unifi
Adopting the UniFi Switch
1. From the UniFi Controller dashboard, click Devices in the left menu bar.
2. Locate the UniFi Switch in the list of devices under the Model column. Click Adopt.
3. The System LED on the UniFi Switch will turn blue to confirm that it has been successfully
adopted.
Configuring PoE Settings
1. On the Devices screen, locate the UniFi Switch. Click the switch to access its settings.
2. Click the Ports tab.
3. Click Actions for the port you want to configure.
4. Select the appropriate PoE setting: Off, 24V Passive, or PoE+. Then click Apply.
For more information, refer to the User Guide on the website: ui.com/download/unifi
Specifications
US-48-500W/US-48-750W
Dimensions 485 x 43.7 x 374.6 mm (19.09 x 1.72 x 14.75")
Weight
US-48-500W 6.1 kg (13.5 lb)
US-48-750W 6.5 kg (14.3 lb)
Total Non-Blocking Line Rate 70 Gbps
Max. Power Consumption
US-48-500W 500W
US-48-750W 750W
Power Method 100-240VAC/50-60 Hz, Universal Input
Power Supply
US-48-500W AC/DC, Internal, 500W DC
US-48-750W AC/DC, Internal, 750W DC
Rack-Mount 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+/SFP Data Ports Speed/Link/Activity
Interfaces
Networking (48) 10/100/1000 Mbps RJ45 Ethernet Ports
(2) 1/10 Gbps SFP+ Ethernet Ports
(2) 1 Gbps SFP Ethernet Ports
Management (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
Certifications CE, FCC, IC
PoE Per Port
PoE Interfaces POE+ IEEE 802.3af/at (Pins 1, 2+; 3, 6-)
Max. PoE+ Wattage per Port by PSE 34.2W
Voltage Range 802.3at Mode 50-57V
Safety Notices
1. Read, follow, and keep these instructions.
2. Heed all warnings.
3. Only use attachments/accessories specified by the manufacturer.
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 this product to rain or
moisture.
WARNING: Do not use this product in location that can be submerged by water.
WARNING: Avoid using this product during an electrical storm. There may be a remote risk of
electric shock from lightning.
Electrical Safety Information
1. Compliance is required with respect to voltage, frequency, and current requirements indicated on the
manufacturer’s label. Connection to a different power source than those specified may result in
improper operation, damage to the equipment or pose a fire hazard if the limitations are not followed.
2. There are no operator serviceable parts inside this equipment. Service should be provided only by a
qualified service technician.
3. This equipment is provided with a detachable power cord which has an integral safety ground wire
intended for connection to a grounded safety outlet.
a. Do not substitute the power cord with one that is not the provided approved type. Never use an
adapter plug to connect to a 2-wire outlet as this will defeat the continuity of the grounding wire.
b. The equipment requires the use of the ground wire as a part of the safety certification, modification
or misuse can provide a shock hazard that can result in serious injury or death.
c. Contact a qualified electrician or the manufacturer if there are questions about the installation prior to
connecting the equipment.
d. Protective earthing is provided by Listed AC adapter. Building installation shall provide appropriate
short-circuit backup protection.
e. Protective bonding must be installed in accordance with local national wiring rules and regulations.
Limited Warranty
ui.com/support/warranty
The limited warranty requires the use of arbitration to resolve disputes on an individual basis, and, where
applicable, specify arbitration instead of jury trials or class actions.
Compliance
FCC
Changes or modifications not expressly approved by the party responsible for compliance could void the
user’s authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions.
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired
operation.
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operations of this equipment
in a residential area is likely to cause harmful interference in which case the user will be required to correct
the interference at his own expense.
ISED Canada
CAN ICES-3(A)/NMB-3(A)
Australia and New Zealand
Warning: This equipment is compliant with Class A of CISPR 32. In a residential environment this
equipment may cause radio interference.
CE Marking
CE marking on this product represents the product is in compliance with all directives that are applicable to
it.
WEEE Compliance Statement
Declaration of Conformity
Online Resources
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