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menuUF-LOCO Quick Start Guide

Package Contents

UFiber loco
Wall Mount Bracket
Screws (Qty. 4)
Screw Anchors (Qty. 4)
Micro-USB Power Adapter* (5V, 1A)

* Included only in the single-pack of the UF-LOCO.

System Requirements

Before You Begin

Designing your first GPON deployment requires specific knowledge and planning. For information on GPON network design and installation, including important considerations and best practices, refer to:

For details on configuring UFiber devices for the first time to allow ONU LAN ports to provide connectivity, refer to: ubnt.link/UFiber-Initial-Configuration

Hardware Overview

Reset Button

The Reset button serves two functions for the UF-LOCO:

  • Restart Press and release the Reset button quickly. The three signal LEDs will flash amber.
  • Restore to Factory Default Settings Press and hold the Reset button for more than five seconds.

PON Port

SC/APC GPON port supports WAN connections of 2.488 Gbps downstream and 1.244 Gbps upstream.

Power Port

The Micro-USB Power Adapter connects to this port to provide power.

Ethernet Power

RJ45 Ethernet LAN port supports a 10/100/1000 Mbps connection and passive 24V PoE to power the device.

Ethernet LED


Ethernet connection down


Ethernet connection up

Signal LEDs



Signal strength: low

≥ -28 dBm

Signal strength: good

≥ -25 dBm

Signal strength: strong

≥ -11 dBm

Signal strength: too low

< -28 dBm

Check the quality of the fiber connection, and calculate the total optical loss of the optical splitters.

Signal strength: too strong

≥ -8 dBm

Add an optical splitter, or add
a 5 or 10 dB optical attenuator.

No signal

Check the fiber cables and connectors, and ensure that the OLT functions properly.

No authority

The UF-LOCO has not been authorized or cannot communicate with the OLT. Check passwords and OLT settings.

Power LED


Power off


Power on

Hardware Installation

Wall Mounting

Connecting Fiber

WARNING: Never look directly into the ends of fiber or modules. The emitted light could cause damage to the eye.

WARNING: Until ready for use, keep modules and fiber patch cables covered using the included protective caps to ensure the connections stay clean.

WARNING: DO NOT connect the device directly to a UFiber GPON module (UF-GP-B+ or UF-GP-C+). Doing so will damage the device optics. Ensure that the device’s received signal level never exceeds -8 dBm. Use a UFiber PLC Splitter to add attenuation as needed.

Connecting LAN

Connecting Power


Note: The airCube provides Wi-Fi connectivity with PoE passthrough, so it is the ideal complement to the UF-LOCO for CPE installations.


WARNING: The switch port must comply with the power specifications listed in this Quick Start Guide.

Accessing the Configuration Interface

  1. Ensure that your computer (or other host system) is connected to the device.
  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. Type in the address field. Press enter (PC) or return (Mac).

  4. Enter ubnt in the Username and Password fields. Click Login.

Customize settings as needed. For more information, refer to the UFiber resources, which are available at: http://ubnt.link/UFiber-Support

OLT Compatibility Profiles

The device is compatible with most major brands of OLT (Optical Line Terminal) and offers four compatibility profiles. By default the device is set to Profile 1 - Ubiquiti UFiber OLT. For other brands, manually select Profile 2, 3, or 4.

  1. Log into the UFiber Configuration Interface.
  2. Go to Settings .

  3. On the Network screen, click the System tab.

  4. Select the appropriate profile from the OLT Profile drop-down menu:
    • Profile 1 Ubiquiti UFiber OLT
    • Profile 2 Other brands
    • Profile 3 Other brands
    • Profile 4 Other brands

    Note: For more information, visit: https://ubnt.link/Supported-3rd-Party-OLTs

  5. Click Save Changes.

The device will automatically restart with the new profile.




76.5 x 76.5 x 26.4 mm
(3.01 x 3.01 x 1.04")


77 g (2.72 oz)

Networking Interfaces


(1) RJ45, Ethernet LAN

Networking Interface Speeds

(1) GPON WAN, ITU G.984,
2.488 Gbps Downstream,
1.244 Gbps Upstream

(1) GbE LAN, 10/100/1000 Mbps

Management Interface

In-Band Ethernet


Normal Optical Power Range

TX (Class B+): 1.5 to 5 dBm

RX: -28 to -8 dBm

Power Method

Micro-USB: 5V, 1A

24V Passive PoE (Pins +4, 5; -7, 8)

Power Supply

Micro-USB Power Adapter*: 5V, 1A

Max. Power Consumption


Supported Voltage Range

4.7 to 5.3V

Processor Specs

MIPS-32, 240 MHz

Memory Information

128 MB DDR3


(1) Reset

Operating Temperature

-10 to 45° C (14 to 113° F)

Operating Humidity

10 to 90% Noncondensing



* Included only in the single-pack of the UF-LOCO.