ONT Power
Depending on the ONT type, there are three different Power tabs that may be displayed.
- ONTs capable of supporting Power over Ethernet (PoE), ONT120C, ONT120W, ONT140C, ONT140W, ONT709GP, ONT728GP, and ONT729GP.
- Wall-mount Indoor/Outdoor ONTs, capable of being supported by a Battery Backup Unit (BBU), ONT‘140C, ONT742, ONT702, ONT703, and ONT714.
- Desktop ONTs, capable of being supported by a Battery Backup Unit (BBU), ONT120C, ONT140C, ONT142R, ONT704F, ONT704G, ONT705GR, ONT709G.
Use the following procedure to view or edit the ONT Power parameters of ONTs that support Power over Ethernet (PoE):
- If the ONT supports Power over Ethernet (PoE), click the Power tab. The Power dialog is displayed.

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Refer to the table below for descriptions of the contents of each field in the Power over Ethernet Section of the Power tab.
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If the ONT supports Power Shedding, click the Power tab. Refer to the table below for descriptions of the contents of each field in the ONT Property – Power Tab.
- Click the Apply button to save any ONT provisioning updates.
- A confirmation message is displayed. Click the OK button.
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Refer to the table below for descriptions of the contents of each field in the Power over Ethernet
Section of the Power tab.
Note: The Power tab displays differently depending on the selected ONT type.Field
Description
Config
Alarm Threshold
The Alarm Threshold defines the percentage of the Nominal PoE power being allocated and will trigger a threshold crossing alert for the ONT level. This informs the user when the requested PoE power is near its maximum value. The Alarm Threshold value is 2 digits. This value is set through the ONT Template.
External Power Supply
The External Power supply defines the power that is available when the ONT has a BBU and is on battery power. Enter a value, in watts, for the selected ONT.
Note 1: If the ONT Type is set to ONT120, ONT140, or ONT709, set the Power Supply to 50 watts for PoE ONTs supported by a Battery Backup Unit (BBU), or 75 watts (default) for PoE ONTs supported by AC power.
Note 2: If the ONT Type is set to ONT728 or ONT729, set the Power Supply to 450 watts (default) if the ONT power is being supported by an Uninterruptable Power Source (UPS), or 450 watts (default) if power is provided from a direct AC source.
Battery Power Supply
If configured with Battery Power Supply)
Indicates that Battery Power Supply is available. The BBU Power value is 2 digits Range: Depends on ONT type.
Watts: For ONT120 & ONT709 (75 Watts)
Enable PoE Alarms
Enables the generation of PoE Threshold crossing alarm. Values are Enable or Disable. Default is Enable.
Status
Operation Status
Defines whether the PoE power circuit is operating normally. Values are: Up, Down or Faulty. Faulty indicates a total power draw that is exceeded or a PoE hardware issue.
Nominal Power
Defines the maximum PoE power that is available to the ONT PoE circuit. External power minus ONT base power and losses equals Nominal PoE Power.
Allocated Power
Defines the total of all PoE power requested from attached PoE devices on all ONT ports.
Delivered Power
Defines the current number of Watts being delivered to devices via PoE.
Power Status
AC Power Status
Displays the power status of the AC power supply. Values are: OK – On AC power
Fail – AC power has failed.
Unknown – Power status not known.
Battery Status
(if configured with a BBU)
Provides current ONT Backup Battery Unit status. Supports reporting of: OK – Battery power available and batteries okay.
BBU missing – Battery is missing
BBU HW fail – Battery power has failed
BBU low – Battery power at low power threshold.
- If the ONT supports Power Shedding, click the Power tab. Refer to the table below for descriptions of the contents of each field in the ONT Property – Power Tab.
Field
Description
Config
Restore power timer reset interval (zero means disabled)
Range is 0 to 64980 seconds. Default is 30 seconds.
Data class shedding interval (zero means disabled)
Range is 0 t0 64980 seconds. Default is 30 seconds.
Video overlay class shedding interval (zero means disabled)
Range is 0 to 64980 seconds. Default is 30 seconds.
Status
Data class shedding status
Powered
Video overlay shedding status
Powered
Status
AC Power Status
Displays the power status of the AC power supply. Values are: OK – On AC power
Fail – AC power has failed. If a BBU is configured, see Battery Status.
Battery Status
(if configured with a BBU)
Provides current ONT Backup Battery Unit status. Supports reporting of: OK – Battery power available and batteries okay.
BBU missing – Battery is missing
BBU HW fail – Battery power has failed
BBU low – Battery power at low power threshold.
- If the ONT is a desktop ONT capable of a Battery Backup Unit (BBU), click the Power tab. Refer to the table below for descriptions of the contents of each field in the ONT Property – Power Tab.
Field
Description
Power Status
AC Power Status
Displays the power status of the AC power supply. Values are: OK – On AC power
Fail – AC power has failed. If a BBU is configured, see Battery Status.
Battery Status
(if the ONT is configured with a BBU)
Provides current ONT Backup Battery Unit status. Supports reporting of: OK – Battery power available and batteries working
BBU missing – Battery is missing
BBU HW fail – Battery power has failed
BBU low – Battery power at low power threshold.
- Click the Apply button to save any ONT provisioning updates.
- A confirmation message is displayed. Click the OK button.