Ubiquiti UniFi SWITCH 48 User manual

Managed PoE+ Gigabit
Switch with SFP+
Models: US-48-500W, US-48-750W

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
UniFi Switch
ManagedPoE+ Gigabit
Switchwith SFP+
Models:US-48-500W, US-48-750W
Power Cord Mounting Screws
(Qty. 4)
Cage Nuts
(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: Mozilla Firefox, Google Chrome, Microsoft
Edge, or Microsoft Internet Explorer 11
• UniFi Controller v4.3.x or higher
TERMS OF USE: All Ethernet cabling runs must use CAT6. It is the customer’s responsibility to
follow local country regulations and indoor cabling 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 software, located either on-site and connected to
the same Layer2 network, or off-site in a cloud or NOC
UAP-IW
US-48-500W
USG-PRO-4
(DHCP Server)
Internet
UAP-AC-PRO
UAP-AC-PRO-O
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
Front Panel System LED
System
State Status
White Factory defaults, waiting for integration.
Flashing White Initializing.
Alternating
White/Blue
Device is busy; do not use or unplug it.
This usually indicates that a process such
as a firmware upgrade is taking place.
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.
Front Panel Port LEDs
RJ45: PoE RJ45: Speed/Link/Act

SFP: Speed/Link/Act
SFP+: Speed/Link/Act
LED State Status
RJ45 1-48
PoE
Off No PoE
Amber IEEE 802.3af/802.3at
Green 24V Passive
Speed/
Link/
Act
Off No Link
Amber
Link Established at
10/100Mbps
Flashing Indicates Activity
Green
Link Established at
1000Mbps
Flashing Indicates Activity
SFP+ 1-2
Speed/
Link/
Act
Off No Link
Green Link Established at 1Gbps
Flashing Indicates Activity
White
Link Established at
10Gbps
Flashing Indicates Activity
SFP 1-2
Speed/
Link/
Act
Off No Link
Green Link Established at 1Gbps
Flashing Indicates Activity

Front Panel Ports
RJ45 1-48
SFP 1-2
SFP+ 1-2
Port Description
RJ45 1-48 RJ45 ports support Power over Ethernet (PoE)
and 10/100/1000 Ethernet connections.
SFP+ 1-2 Hot-swappable SFP+ ports support
1/10Gbps connections.
SFP 1-2 Hot-swappable SFP ports support 1 Gbps
connections.
Front Panel Button
Reset
Button Description
Reset
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.
*640-00116-05*
640-00116-05

Back Panel
CONSOLE
Mounting Holes
Power
Mounting Holes
Console
Note: The Console port is reserved for future use.
Side Panels
Ventilation Holes
Fans
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 Networks. For more details, visit: www.ubnt.com/
toughcable
Note: Although the cabling can be located outdoors,
the UniFi Switch itself should be housed inside a
protective enclosure.

Hardware Installation
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.
1. Connect the Power Cord to the Power port of the
UniFiSwitch.
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.)

3. Connect the other end of the Power Cord to a power outlet.
Connecting Ethernet
1. Connect an Ethernet cable from your computer or host
system to any port of the UniFi Switch.
2. Connect Ethernet cables from the Ethernet ports of your
devices to the other numbered ports of the UniFi Switch.
Note: The PoE settings for ports 1-48 are set to
auto-sensing PoE+ by default, so 802.3af/at devices
can be plugged in and automatically receive PoE. For
instructions on how to enable 24V passive PoE, refer
to the Configuring PoE Settings section.

Using SFP+ and SFP Ports
These ports support the specified module types at the
following speeds:
Ports SFP+ Module Type SFP Module Type
SFP+ 1-2 10 Gbps 1 Gbps
SFP 1-2 (Not supported) 1 Gbps
To use an SFP+ or SFP port:
1. Remove the protective plug covering the SFP port.
2. Plug a compatible fiber module into the SFP port.
3. Connect a fiber optic cable to the fiber module. Then
connect the other end of the cable to another fiber device.
50
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 downloads.ubnt.com/unifi and follow the
on-screen instructions.
Note: If you already have UniFi Controller v4.3.x or higher
installed, skip 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 admin name and
password that you created and click Login.
You can manage your network and view network statistics
using the UniFi Controller management interface.
To adopt the UniFi Switch, proceed to the Adopting the UniFi
Switch section.
For information on configuring and using the UniFi
Controller software, refer to the User Guide on the website:
documentation.ubnt.com/unifi

Adopting the UniFi Switch
1. From the UniFi Controller dashboard, click Devices in the
left menu bar.
2. On the Devices screen, locate the UniFi Switch in the list of
devices under the Name/MAC Address column. To adopt
the UniFi Switch, click Adopt.
3. The System LED on the UniFi Switch will turn blue to
confirm that it has been successfully adopted.
To configure PoE settings, proceed to the Configuring PoE
Settings section.

Configuring PoE Settings
The PoE settings for ports 1-48 are set to auto-sensing PoE+
by default, so 802.3af/at devices can be plugged in and
automatically receive PoE.
WARNING: Before activating 24V passive PoE, ensure
that the connected device supports PoE and the
suppliedvoltage.
1. On the Devices screen, locate the UniFi Switch in the list of
devices under the Model column. 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 mode: Off, 24V Passive, or PoE+
from the PoE setting. ThenclickApply.
For more information, refer to the User Guide on the website:
documentation.ubnt.com/unifi

Specifications
UniFi Switch
Dimensions 485 x 43.7 x 374.6 mm (19.09 x 1.72 x 14.75")
Weight
US-48-500W
US-48-750W
6.1 kg (13.5 lb)
6.5 kg (14.3 lb)
Total Non-Blocking Line Rate 70 Gbps
Max. Power Consumption
US-48-500W
US-48-750W
500W
750W
Power Method 100-240VAC/50-60 Hz, Universal Input
Power Supply
US-48-500W
US-48-750W AC/DC, Internal, 500W DC
AC/DC, Internal, 750W DC
Certications CE, FCC, IC
Rack-Mount Yes, 1U High
ESD/EMP Protection Air: ± 24 kV, Contact: ± 24 kV
Operating Temperature -5 to 40° C (23 to 104° F)
Operating Humidity 5 to 95% Noncondensing
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 (Reserved
for Future Use), Ethernet In-Band
PoE Per Port
PoE Interfaces POE+ IEEE 802.3af/at (Pins 1, 2+; 3, 6-)
24VDC Passive PoE (Pins 4, 5+; 7, 8-)
Max. PoE+ Wattage per
Port by PSE 34.2W
Voltage Range 802.3at
Mode 50-57V
Max. Passive PoE Wattage
per Port 17W
24V Passive PoE Voltage
Range 20-27V

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
UBIQUITI NETWORKS, Inc (“UBIQUITI NETWORKS”) warrants that the
product(s) furnished hereunder (the “Product(s)”) shall be free from defects
in material and workmanship for a period of one (1) year from the date
of shipment by UBIQUITI NETWORKS under normal use and operation.
UBIQUITI NETWORKS’ sole and exclusive obligation and liability under
the foregoing warranty shall be for UBIQUITI NETWORKS, at its discretion,
to repair or replace any Product that fails to conform to the above
warranty during the above warranty period. The expense of removal and
reinstallation of any Product is not included in this warranty. The warranty
period of any repaired or replaced Product shall not extend beyond its
original term.
Warranty Conditions
The above warranty does not apply if the Product:
(I) has been modified and/or altered, or an addition made thereto,
except by Ubiquiti Networks, or Ubiquiti Networks’ authorized
representatives, or as approved by Ubiquiti Networks in writing;
(II) has been painted, rebranded or physically modified in any way;
(III) has been damaged due to errors or defects in cabling;
(IV) has been subjected to misuse, abuse, negligence, abnormal physical,
electromagnetic or electrical stress, including lightning strikes, or
accident;
(V) has been damaged or impaired as a result of using third party
firmware;
(VI) has no original Ubiquiti MAC label, or is missing any other original
Ubiquiti label(s); or
(VII) has not been received by Ubiquiti within 30 days of issuance of
the RMA.
In addition, the above warranty shall apply only if: the product has been
properly installed and used at all times in accordance, and in all material
respects, with the applicable Product documentation; all Ethernet cabling
runs use CAT5 (or above), and for outdoor installations, shielded Ethernet
cabling is used, and for indoor installations, indoor cabling requirements
are followed.
Returns
No Products will be accepted for replacement or repair without obtaining
a Return Materials Authorization (RMA) number from UBIQUITI NETWORKS
during the warranty period, and the Products being received at UBIQUITI
NETWORKS’ facility freight prepaid in accordance with the RMA process of
UBIQUITI NETWORKS. Products returned without an RMA number will not
be processed and will be returned freight collect or subject to disposal.
Information on the RMA process and obtaining an RMA number can be
found at: www.ubnt.com/support/warranty.

Disclaimer
EXCEPT FOR ANY EXPRESS WARRANTIES PROVIDED HEREIN, UBIQUITI
NETWORKS, ITS AFFILIATES, AND ITS AND THEIR THIRD PARTY DATA,
SERVICE, SOFTWARE AND HARDWARE PROVIDERS HEREBY DISCLAIM
AND MAKE NO OTHER REPRESENTATION OR WARRANTY OF ANY KIND,
EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED TO,
REPRESENTATIONS, GUARANTEES, OR WARRANTIES OF MERCHANTABILITY,
ACCURACY, QUALITY OF SERVICE OR RESULTS, AVAILABILITY,
SATISFACTORY QUALITY, LACK OF VIRUSES, QUIET ENJOYMENT, FITNESS
FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT AND ANY
WARRANTIES ARISING FROM ANY COURSE OF DEALING, USAGE OR
TRADE PRACTICE IN CONNECTION WITH SUCH PRODUCTS AND SERVICES.
BUYER ACKNOWLEDGES THAT NEITHER UBIQUITI NETWORKS NOR
ITS THIRD PARTY PROVIDERS CONTROL BUYER’S EQUIPMENT OR THE
TRANSFER OF DATA OVER COMMUNICATIONS FACILITIES, INCLUDING
THE INTERNET, AND THAT THE PRODUCTS AND SERVICES MAY BE
SUBJECT TO LIMITATIONS, INTERRUPTIONS, DELAYS, CANCELLATIONS
AND OTHER PROBLEMS INHERENT IN THE USE OF COMMUNICATIONS
FACILITIES. UBIQUITI NETWORKS, ITS AFFILIATES AND ITS AND THEIR THIRD
PARTY PROVIDERS ARE NOT RESPONSIBLE FOR ANY INTERRUPTIONS,
DELAYS, CANCELLATIONS, DELIVERY FAILURES, DATA LOSS, CONTENT
CORRUPTION, PACKET LOSS, OR OTHER DAMAGE RESULTING FROM ANY
OF THE FOREGOING. In addition, UBIQUITI NETWORKS does not warrant
that the operation of the Products will be error-free or that operation will
be uninterrupted. In no event shall UBIQUITI NETWORKS be responsible
for damages or claims of any nature or description relating to system
performance, including coverage, buyer’s selection of products (including
the Products) for buyer’s application and/or failure of products (including
the Products) to meet government or regulatory requirements.
Limitation of Liability
EXCEPT TO THE EXTENT PROHIBITED BY LOCAL LAW, IN NO EVENT WILL
UBIQUITI OR ITS SUBSIDIARIES, AFFILIATES OR SUPPLIERS BE LIABLE FOR
DIRECT, SPECIAL, INCIDENTAL, CONSEQUENTIAL OR OTHER DAMAGES
(INCLUDING LOST PROFIT, LOST DATA, OR DOWNTIME COSTS), ARISING
OUT OF THE USE, INABILITY TO USE, OR THE RESULTS OF USE OF THE
PRODUCT, WHETHER BASED IN WARRANTY, CONTRACT, TORT OR OTHER
LEGAL THEORY, AND WHETHER OR NOT ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.

Note
Some countries, states and provinces do not allow exclusions of implied
warranties or conditions, so the above exclusion may not apply to you.
You may have other rights that vary from country to country, state to
state, or province to province. Some countries, states and provinces do not
allow the exclusion or limitation of liability for incidental or consequential
damages, so the above limitation may not apply to you. EXCEPT TO
THE EXTENT ALLOWED BY LOCAL LAW, THESE WARRANTY TERMS DO
NOT EXCLUDE, RESTRICT OR MODIFY, AND ARE IN ADDITION TO, THE
MANDATORY STATUTORY RIGHTS APPLICABLE TO THE LICENSE OF ANY
SOFTWARE (EMBEDDED IN THE PRODUCT) TO YOU. The United Nations
Convention on Contracts for the International Sale of Goods shall not apply
to any transactions regarding the sale of the Products.
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.
NOTE: 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.
Industry Canada
CAN ICES-3(A)/NMB-3(A)
This Class A digital apparatus complies with Canadian CAN ICES-3(A).
CAN ICES-3(A)/NMB-3(A)
Cet appareil numérique de la classe A est conforme à la norme NMB-3(A)
Canada.

Australia and New Zealand
Warning: This is a Class A product. In a domestic environment this
product may cause radio interference in which case the user may
be required to take adequate measures.
CE Marking
CE marking on this product represents the product is in compliance with all
directives that are applicable to it.
RoHS/WEEE Compliance Statement
English
European Directive 2012/19/EU requires that the equipment bearing
this symbol on the product and/or its packaging must not be disposed
of with unsorted municipal waste. The symbol indicates that this
product should be disposed of separately from regular household waste
streams. It is your responsibility to dispose of this and other electric and
electronic equipment via designated collection facilities appointed by the
government or local authorities. Correct disposal and recycling will help
prevent potential negative consequences to the environment and human
health. For more detailed information about the disposal of your old
equipment, please contact your local authorities, waste disposal service, or
the shop where you purchased the product.
Deutsch
Die Europäische Richtlinie 2012/19/EU verlangt, dass technische
Ausrüstung, die direkt am Gerät und/oder an der Verpackung mit diesem
Symbol versehen ist, nicht zusammen mit unsortiertem Gemeindeabfall
entsorgt werden darf. Das Symbol weist darauf hin, dass das Produkt
von regulärem Haushaltmüll getrennt entsorgt werden sollte. Es
liegt in Ihrer Verantwortung, dieses Gerät und andere elektrische
und elektronische Geräte über die dafür zuständigen und von der
Regierung oder örtlichen Behörden dazu bestimmten Sammelstellen zu
entsorgen. Ordnungsgemäßes Entsorgen und Recyceln trägt dazu bei,
potentielle negative Folgen für Umwelt und die menschliche Gesundheit
zu vermeiden. Wenn Sie weitere Informationen zur Entsorgung Ihrer
Altgeräte benötigen, wenden Sie sich bitte an die örtlichen Behörden oder
städtischen Entsorgungsdienste oder an den Händler, bei dem Sie das
Produkt erworben haben.