Alarms
The Active Alarms view allows the user to recognize one or more alarms and view the Severity Levels and Probable Causes text all on one screen. Additionally, the user can sort each column separately as ascending or descending and, using a filter, select a selected group of failures. The navigation buttons allow the user to page through multiple pages of alarms.
The Alarm History contains historical alarm records that can number up to 1,500,000 alarm records at a time. Once the alarm database storage limit is reached, older alarms are cleared, and the most current alarm is displayed. The Alarm History displays each entry for an Alarm Set and an Alarm Clear.
Alarm Color Codes and Status displayed in the Severity column correspond to the color of the most severe alarm (MSA) status. For example, if any Optical Line Terminal (OLT) has a critical alarm, the Network icon is red. The icon color reflects the MSA status for that OLT. See the icon colors, alarm status, and alarm definitions below.
| Color | Alarm Status | Alarm Definition |
| Green | Clear | No alarms present. |
| Red | Critical | Most critical alarm status, defined by the Probable Cause and corresponding severity setting. |
| Orange | Major | Major alarm status, defined by the Probable Cause and corresponding Severity setting. |
| Yellow | Minor | Minor alarm status, defined by the Probable Cause and corresponding severity setting. |
| Warning | The card has an active warning (no critical, major, or minor alarms are present). | |
| Blue | The OLT is unreachable or the alarm synchronization at startup of the server is not complete or the most critical alarm status for the OLT is indeterminate. |
Active Alarms
Displays the Active Alarms connected to the OLT. The alarms displayed will be dependent on the alarm location on the Device Common Tree.
Access to Alarms is from the OLT, Slot, PON Ports, ONT and ONT UNI PORTS Menu Bars.
Timestamp
At the time of the alarm occurrence, the normal state is in descending order from newest to oldest but can be changed to descending by clicking on the arrow beside the heading name. The default order of displayed alarms will be from newest to oldest.
Severity
The severity of the alarm is shown. Normal state is the descending order of newest to oldest but can be changed by clicking on the arrow beside the heading name. This will group the alarms from the highest severity to the least.
OLT Name
The name of the OLT that initiated the alarm will be shown. Normal state is in descending order but can be changed by clicking on the arrow beside the heading name. This will display the alarms in alphanumerical order.
OLT naming convection for the OLT name is shown below.
- Target Identifier (TID) - Name of whole shelf
- i.e. VolPWorld 1134, VolPWorld OLT2
For extended information go to Name and Location AIDS,
On mouse over the named OLT will display the properties of the selected OLT.
When the user single clicks the mouse, all the alarms of only that OLT will be displayed in the Devices Section. The Ascending and Descending arrows work the same as in the Alarms section.
Location
The Location of the ONT that initiated the alarm is shown. Normal state is in descending order but can be changed by clicking on the Arrow beside the heading name. This will display the alarms in alpha-numerical order.
ONT Location naming convection for the ONT location is shown below.
- Access Identifier (AID) - Position in shelf
- ESU Faceplate Ports
- ESU Port - MDS1-ESU<A|B>-<Port> MDS1-1-1-1
- PON Port - MDS1-<slot>-<pon> MDS1-1-1
- ONT - MDS1-<slot>-<pon>-<ont id> MDS1-8-64
- ONT UNI - MDS1-<slot>-<pon>-<ont id>-<uni port> MDS1-8-64-4
- ESU Faceplate Ports
For extended information go to Name and Location AIDS.
On mouse-over the OLT Location will display the properties of the selected ONT.
When you single click the mouse, the alarms of the selected ONT at that location will be displayed in the Devices Section.
For more information about the location, go to Alarm Aids>OLT Components.
Probable Cause
The Probable Cause of the alarm is shown. Normal state is in descending order but can be changed by clicking on the arrow beside the heading name. This will display the Probable Cause in alphanumerical order.
For more information about the location, go to Alarm Aids>OLT Probable Cause.
Additional Info
Additional information about the alarm is shown if available. Normal state is in descending order but can be changed by clicking on the arrow beside the heading name. This will display the Additional Information in alphanumerical order.
