* Refer to the Specifications section for more information.
Package Contents
airFiber
AF-5/AF-5U
Pole Clamps
(Qty. 2)
Serrated Flange Bolts
(M8x14, Qty. 4)
Cable Ties
(Qty. 2)
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.
I-BracketUpper Mount Bracket
M10x150 Carriage Bolts
Azimuth Support Brackets
GigE PoE Adapter
(50V, 1.2A)
with Elevation Rod
(Qty. 4)
(Qty. 2)
Power CordQuick Start Guide
Lower Mount
Bracket
M10x100 Carriage Bolts
(Qty. 2)
Serrated Flange Nuts
(M10, Qty. 6)
1
airFiber® AF-5/AF-5U Quick Start Guide
Hardware Overview
Side
Elevation Rod
Hex Nut
to adjust
Elevation Rod
Pre-Installed
M10 x25
Flanged Bolts
Lanyard Attachment
Loop
Grounding Point
Lanyard Attachment
Loop
Assembled View
2
Interfaces
AUX
ACTSPEED ACTSPEED
Hardware Overview
MASTER
MANAGEMENTDATA
InterfaceDescription
Reset Button
Remote Display
Local Display
GPS
LINK
RESET
REMOTE
LOCAL
OVERLOAD
8X
6X
4X TO 0.25X
To reset to factory defaults, press and hold the
Reset button for more than five seconds while
the unit is already powered on.
Displays the received signal strength in dBm of
the remote airFiber radio.
Displays the received signal strength in dBm of
the local airFiber radio.
Management Port
default, this is the only port that can monitor,
configure, and/or update firmware.
Aux PortPort for audio tone aiming.
Data Port10/100/1000 Mbps port handles all user traffic.
10/100 Mbps, secured port for configuration. By
3
airFiber® AF-5/AF-5U Quick Start Guide
AUXMANAGEMENTDATA
ACTSPEED ACTSPEED
LEDs
GPS
MASTER
LINK
RESET
LEDStateStatus
OffNo GPS Synchronization
GPS
OnOperational (Strong Signal)
Normal Flash*Non-Operational (Weak Signal)
OffSlave mode
Master
OnMaster mode
OffRF Off
Short Flash*Syncing
Link
Normal Flash*Beaconing
REMOTE
LOCAL
OVERLOAD
8X
6X
4X to 0.25X
RemoteOn
4
Long Flash*Registering
OnOperational
Displays the received signal
strength in dBm of the remote
airFiber radio.
LEDStateStatus
Hardware Overview
LocalOn
strength in dBm of the local
airFiberradio.
OverloadFast FlashOverload Condition
(Unlabeled)On10x (1024QAM MIMO)
8xOn256QAM MIMO
6xOn64QAM MIMO
On16QAM MIMO
Long Flash*QPSK MIMO
4x to 0.25x
Normal Flash*1x QPSK xRT™**
Short Flash*¼x QPSK xRT**
Displays the received signal
* Short Flash (1:3 on/off cycle)
Normal Flash (1:1 on/off cycle)
Long Flash (3:1 on/off cycle)
** xtreme Range Technology
Port LEDs
LEDStateStatus
OffNo Ethernet Link
Act
OnEthernet Link Established
Random FlashingEthernet Activity
Speed
Management
Act
Speed
Data
Off10 Mbps
On100 Mbps
OffNo Ethernet Link
OnEthernet Link Established
Random FlashingEthernet Activity
Off10/100 Mbps
On1000 Mbps
5
airFiber® AF-5/AF-5U Quick Start Guide
Installation Requirements
Pre-Assembly Tool
• 13 mm wrench
Pole-Mounting Tool
• 17 mm wrench
Other Requirements
• Clear line of sight between airFiber radios
• Clear view of the sky for proper GPS operation
• Vertical mounting orientation
• Mounting location with < 0.5° displacement due to twist and
sway under wind loading
• Mounting point:
• At least 1 m below the highest point on the structure
• For tower installations, at least 3 m below the top of thetower
• Ground wires – min. 10 AWG (5 mm2) and max. length: 1m.
Asa safety precaution, ground the airFiber radios to grounded
Note: For guidelines about grounding and lightning
protection, follow your local electrical regulatory codes.
• Outdoor, shielded Category 6 (or above) cabling and shielded
RJ45 connectors are required for all wired Ethernet connections.
6
Installation Overview
Installation Overview
We recommend that you configure your paired airFiber radios
before mounting. Below is an overview of the installation with
specific details in the following instructions:
• Connect Power over Ethernet to the Data port, and
connect an Ethernet cable between your computer and the
Managementport.
• Configure the device settings in the airFiber Configuration
Interface.
• Once configuration is complete, disconnect the cables to move
the airFiber radios.
• Pre-assemble the mounting hardware.
• Install the airFiber radios at the site.
• Establish and optimize the RF link.
Note: The AF-5 and AF-5U models share the same
installation and configuration instructions.
Connecting Power over Ethernet
1. Push the button and slide the port cover down to access the
cableports. (The port cover cannot be completely removed.)
7
airFiber® AF-5/AF-5U Quick Start Guide
AUXMANAGEMENTDATA
ACT SPEED ACT SPEED
2. Connect an Ethernet cable to the Data port.
REMOTE
LOCAL
OVERLOAD
8X
6X
4X to 0.25X
MASTER
RESET
GPS
LINK
3. Connect the other end of the Ethernet cable from the Data
port to the Ethernet port labeled POE on the GigE PoE Adapter.
4. Connect the Power Cord to the power port on the GigE
PoE Adapter. Connect the other end of the Power Cord to a
powersource.
8
airFiber Configuration
SlaveMaster
SlaveMaster
airFiber Configuration
The instructions in this section explain how to access the airFiber
Configuration Interface and configure the following settings:
• Wireless Mode Configure one airFiber radio as the Master and
the other as the Slave.
• Duplex The airFiber radio supports both half-duplex and
full-duplex operation. Half-duplex operation provides more
frequency planning options at the cost of higher latency
and throughput. Full-duplex operation provides the highest
throughput and lowest latency; however, you have fewer
frequency management options.
- Half Duplex (default) The TX and RX Frequencies can be the
same or different to suit local interference.
RX
Frequency A
Frequency A
TX
Half-Duplex Diagram
RX
TX
- Full Duplex The TX and RX Frequencies should be different.
RX
Frequency B
Frequency A
TX
Full-Duplex Diagram
RX
TX
• TX and RX Frequencies The TX Frequency on the Master must
match the RX Frequency on the Slave, and vice versa.
9
airFiber® AF-5/AF-5U Quick Start Guide
AUXMANAGEMENTDATA
ACT SPEED ACT SPEED
1. Connect an Ethernet cable from your computer to the
Management port on the airFiber radio.
MASTER
GPS
LINK
RESET
REMOTE
LOCAL
OVERLOAD
8X
6X
4X to 0.25X
2. Configure the Ethernet adapter on your computer with a static
IP address on the 192.168.1.x subnet.
3. Launch your web browser. Type http://192.168.1.20 in the
address field and 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.
10
Note:U.S. product versions are locked to the U.S. Country
Code to ensure compliance with FCC regulations.
airFiber Configuration
5. The Main tab will appear. Click the Tools drop-down and
select Link Calculator. This tool will guide you on how to best
minimize bandwidth and power/interference issues.
Note: If you do not see the Link Calculator, then upgrade
the firmware on your airFiber radios. Download the
firmware at: downloads.ubnt.com/airfiber
6. Enter the requirements of your link, and then click Calculate.
Adjust the values as needed to get the optimal result, and then
write down the settings needed for your configuration.
7. Click the Wireless tab.
8. Enter the Basic Wireless Settings:
a. For one airFiber radio, select Master as the Wireless Mode.
For the other airFiber radio, keep the default,Slave.
b. Enter a name in the Link Name field. This should be the
same on both the Master and the Slave.
c. For the Duplex drop-down:
Half Duplex The default mode. The TX and RX Frequencies
can be the same or different to suit local interference.
Full Duplex The TX and RX Frequencies should be different.
d. Select a TX Frequency. This must match the RX Frequency on
your other airFiber radio.
e. Select a RX Frequency. This must match the TX Frequency of
your other airFiber radio.
f. If needed, change the Output Power and/or Maximum
Modulation Rate settings.
11
airFiber® AF-5/AF-5U Quick Start Guide
9. Configure the Wireless Security:
a. Select the AES Key Type, HEX or ASCII.
b. For the Key field:
HEX Enter 16 bytes (eight, 16-bit HEX values: 0-9, A-F, or
a-f). You can omit zeroes and use colons, similar to the
IPv6 format.
Note: The airFiber Configuration Interface supports
IPv6 formats excluding dotted quad and "::"
(double-colon) notation.
ASCII Enter a combination of alphanumeric characters (0-9,
A-Z, or a-z).
10. Click Change and then click Apply.
11. In-Band Management is enabled by default, so each airFiber
radio must have a unique IP Address. (If the airFiber radios use
the same IP Address, you may lose access to the airFiber radios
via the Data ports.) Click the Network tab.
a. For the Management IP Address option:
DHCP Keep the default, DHCP, to use DHCP reservation on
your router to assign a unique IP Address.
Static Change the IP Address, Netmask, and other settings
to make them compatible with your network.
b. Click Change and then click Apply.
Repeat the instructions in the airFiber Configuration section on
your other airFiber radio. After you have configured the airFiber
radios, disconnect them and move them to your installation site.
12
Hardware Installation
Hardware Installation
The mounting hardware of the airFiber radio can be pre-assembled
before pole-mounting.
Mounting Hardware Pre-Assembly
1. Insert two M10x150 Carriage Bolts into the Lower Mount Bracket.
2. Insert two M10x150 Carriage Bolts into the Upper Mount Bracket with Elevation Rod.
13
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