User's Manual
2.4 GHz High-Performance 
Integrated InnerFeed
®
airMAX
®
 ac Bridge
Model: PBE-2AC-400
Introduction
Thank you for purchasing the Ubiquiti Networks® 
PowerBeam®ac. This Quick Start Guide is designed to guide 
you through installation and also includes warranty terms.
If you want to add a radome to enclose the Dish Reflector, 
UbiquitiNetworks offers the PowerBeam Radome, 400 mm, 
modelPBE-RAD-400 as an optional accessory. Product details 
are available on our website at www.ubnt.com/airmax
Package Contents
Dish Reflector PBE-2AC-400 
Antenna Feed
Rear Housing
20
10
10
0
Dish Bracket Pole Clamp U-Bolt Flange Nuts 
(M8, Qty. 2)
High-Performance 
Integrated InnerFeed
™
airMAX
®
 ac Bridge
Model: PBE-2AC-400
Gigabit PoE (24V, 0.5A) 
with Mounting Bracket
Power Cord Quick Start Guide
TERMS OF USE: Ubiquiti radio devices must be professionally installed. Shielded Ethernet 
cable and earth grounding must be used as conditions of product warranty. TOUGHCable
™ 
is designed for outdoor installations. It is the customer’s responsibility to follow local country 
regulations, including operation within legal frequency channels, output power, and Dynamic 
Frequency Selection (DFS) requirements.
Hardware Overview
Bottom View
Dish 
Reflector
Cable Door
Rear Housing
Technology
Ethernet Port
Release 
Button Slot
Dish Bracket
Release Button
Alignment Pins
Reset Button
Antenna Feed
Reset Button  To reset to factory defaults, press and hold the 
Reset button for more than 10 seconds while the PowerBeam 
is already poweredon. Alternatively, the PowerBeam may be 
reset remotely via a Reset button located on the bottom of the 
Gigabit PoE Adapter.
Release Button  After you assemble the PowerBeam, check 
the Release button; it should be fully engaged in the Release 
Button Slot of the Rear Housing. This ensures that the Antenna 
Feed is locked into place. If you need to remove the Antenna 
Feed, you must depress the Release button first.
LEDs
Signal  In airOS, you can modify the wireless signal 
strength threshold values for each LED on the 
Wireless tab under Signal LED Thresholds. The default 
values are shown below:
LED will light blue when the wireless signal 
strength is above -65 dBm.
LED will light blue when the wireless signal 
strength is above -73 dBm.
LED will light blue when the wireless signal 
strength is above -80 dBm.
LED will light blue when the wireless signal 
strength is above -94 dBm.
Ethernet  The Ethernet LED will light steady blue 
when an active Ethernet connection is made and 
flash when there is activity.
Power  The Power LED will light blue when the 
device is connected to a power source.
Application Examples
The PowerBeam mounted outdoors with the Dish Reflector 
installed provides directional outdoor coverage (gain is 
reflector‑dependent).
The PowerBeam mounted outdoors without the Dish Reflector 
installed provides outdoor‑to‑indoor coverage using the 3 dBi 
Antenna Feed only.
Installation Requirements
•  13 mm wrench
•  Shielded Category 5 (or above) cabling should be used for 
all wired Ethernet connections and should be grounded 
through the AC ground of the PoE.
We recommend that you protect your networks from the 
most brutal environments and devastating ESD attacks 
with industrial‑grade shielded Ethernet cable from Ubiquiti 
Networks. For more details, visit www.ubnt.com/toughcable
Installation
1.  Align and insert the tabs of the Dish Bracket into the 
slots of the Dish Reflector. Rotate the Dish Bracket 
counter‑clockwise until the tabs lock into place.
20
10
10
0
2.  Line up the Alignment Pins of the Rear Housing with the 
alignment holes of the Dish Bracket. Insert the pins and 
push until they lock intoplace.
20
10
10
0
*640-00213-01*
640-00213-01
3.  Push in the sides of the Cable Door and detach it from the 
Rear Housing.
20
10
0
10
4.  Attach the Antenna Feed:
a.  Insert the Antenna Feed into the Rear Housing, and push 
until it locks into place with a click. 
b.  Lightly pull the Antenna Feed to ensure that it is locked 
into place and the Release button is fully engaged.
Release Button
Bottom View
5.  Connect the Ethernet cable:
a.  Connect an Ethernet cable to the Ethernet Port of the 
Antenna Feed. 
b.  Re-attach the Cable Door to the Rear Housing.
20
10
0
10
6.  Slide the Pole Clamp onto the Dish Bracket.
20
10
10
0
7.  Insert the U-Bolt into the Pole Clamp and Dish Bracket. Secure 
each end of the U-Bolt with a Flange Nut.
20
10
10
0
25 N-m
Note: The mounting assembly can accommodate a 
Ø 32 - 56 mm pole.
8.  Optional: If you have the PowerBeam Radome (optional 
accessory), then align the arrows on the bottoms of the 
Radome and Dish Reflector so the Drain Holes on the Radome 
point downward. Snap the Radome onto the Dish Reflector.
9.  Connect the Ethernet cable from the PowerBeam’s Ethernet 
port to the POE port of the Gigabit PoE adapter.
10. Connect an Ethernet cable from your LAN to the adapter’s 
LAN port. 
11. Connect the Power Cord to the adapter’s power port. 
Connect the other end of the Power Cord to a power outlet.
Mounting the PoE Adapter (Optional)
1.  Remove the PoE Mounting Bracket from the adapter, place 
the bracket at the desired location, and mark the two holes. 
2.  Pre-drill the holes if necessary, and secure the bracket 
using two fasteners (not included).
3.  Align the adapter’s slots with the tabs of the PoE Mounting 
Bracket, and then slide the adapterdown.
Accessing airOS
Verify connectivity in the airOS® Configuration Interface. 
1.  Make sure that your host system is connected via Ethernet 
to the PowerBeam. 
2.  Configure the Ethernet adapter on your host system with a 
static IP address on the 192.168.1.x subnet.
3.  Launch your web browser and type https://192.168.1.20 
in the address field. Press enter (PC) or return (Mac). 
4.  The login screen will appear. Enter ubnt in the Username 
and Password fields. Select your Country and Language. 
You must agree to the Terms of Use to use the product. 
Click Login.
Note: For the Country setting, U.S. product versions 
are restricted to a choice of Canada, Puerto Rico, 
or the U.S. to ensure compliance with FCC/IC 
regulations. 
The airOS Configuration Interface will appear, allowing you 
to customize your settings as needed. For additional details 
on the airOS Configuration Interface, refer to the User Guide 
available at documentation.ubnt.com/airmax
Installer Compliance Responsibility
Devices must be professionally installed and it is the 
professional installer's responsibility to make sure the device is 
operated within local country regulatory requirements.
Since Ubiquiti Networks equipment can be paired with a 
variety of antennas and cables, the Antenna and Output Power 
fields are provided to the professional installer to assist in 
meeting regulatory requirements.
PBE-2AC-400_QSG_V01_10-30-15.indd (2.75 x 4.5) -- Spread 1 of 2 -- Fri Oct 30 2015 13:07:58 -- NUpConsecutive
PBE-2AC-400_QSG_V01_10-30-15.indd (2.75 x 4.5) -- Spread 1 of 2 -- Fri Oct 30 2015 13:07:58 -- NUpConsecutive


