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61287564G1-22A

3

2. Refer to the following illustration and pull the Protective 

Cover from the SC/APC Connector.

3. Clean the ends of the Incoming Fiber and the SC/APC 

Connector.

4. Refer to the following illustration and connect the Incoming 

Fiber to the SC/APC Connector.

5. Route the fiber cable through the slot in the Protective Panel.
6. Replace the Protective Panel on the Small Form Factor ONT 

and secure with the retaining screw.

NOTE

When the SC/APC fiber connection is not in use, replace the
Protective Cover. This will help keep the optical connection clean.

Step 4: Connect Power

Refer to the following illustration and steps when connecting 
power and turning the Small Form Factor ONT On and Off.

1. Plug the supplied 12 V AC/DC Power Converter into the 

PWR

 connection on the rear of the chassis. 

2. Connect the power plug to a standard 120 V AC outlet.

ON/OFF Button

An On/Off button is located on the back of the Small Form Factor 
ONT. 

Protective 
Cover

SC/APC
Connector

Incoming 
Fiber

Power

On/Off

RESET
Button

LED S

TATUS

The LEDs are located beneath the plastic housing and are only 
visible after power has been applied. The following table provides 
the LED status during normal operations.

T

ROUBLESHOOTING

The following table provides troubleshooting tips.

Label

Status

Indication

PWR

Off
Green

ONT power is Off
ONT power On

GPON

2

Off
Green
Green Flashing 

ONT is not active (not Ranged)
ONT is active (Ranged)
ONT is activating (Ranging in 
progress)

OPTICAL

2

Off

Red

Red Flashing

ONT is receiving optical power 
normally
ONT PON optical module 

power is off
ONT receiving low optical 

power

LAN 

2

Off
Green

Green Flashing Fast

ETH Port not connected
ETH Port connected, but data is 
not being transmitted
ETH Port connected, and data 
is being transmitted 

Problem

Possible Solution

The Power LED is Off

Make sure the power cable connector 
is properly seated in the ONT power 
input.

Verify that the power adapter is 
plugged into a live AC outlet.

Check the power cable for shorts or 
breaks.

Disconnect the power input connector 
at the ONT and use a voltmeter to ver-
ify that the proper voltage level is pres-
ent on the 12 V pin (power and power 
return) from the power adapter.

The GPON LED is flashing 
green

This is normal at boot-up and may take 
up to one minute to turn solid green. If 
this state persists, contact the Central 
Office to verify that the ONT serial 
number, password and vendor ID 
match those provisioned in the data-
base.
If provisioning is correct, have the 
Central Office determine if there are 
alarms on the PON feeding the ONT. If 
no alarms exist, use an optical power 
meter to troubleshoot the fiber net-
work.

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