Alarms Fields
The following are explanations of the alarm filters.
Alarms View
The current Alarms can be found in the Alarms View on the Panorama PON Element Management System by clicking the alarms icon and setting the context in the common tree to display the OLT alarm information.
The alarms' view can be filtered by selections in the common tree. The alarms shown will always be limited to those appropriate for the context. The Network context will show all alarms for all OLTs managed by the EMS, the PON context will show all the alarms related to that PON or any underlying ONTs. The ONT context would show only alarms relative to that ONT.
The Alarms view will display the following alarm fields:
| Alarm Field |
Description |
|---|---|
| Time |
The date and time the alarm was set or cleared including the time zone code.
Note: The NE uses the UTC time (from the NTP server) and the daylight savings time setting to determine the local NE time. The NE sends the UTC time with the alarm. EMS converts the UTC time to the local EMS server time (including the daylight savings time adjustment). The result is indicated in this field. |
| Severity |
The severity of the alarm.
|
| Probable Cause | The Probable Cause or name of the alarm. |
| Location | The physical device or port within the OLT that signals the alarm. |
| OLT IP Address | The Internet protocol (IP) address of the OLT that sent the alarm. |
| OLT Name | The name of the OLT that sent the alarm. |
| Service Affecting (SA) |
|
| ACK | If the alarm is acknowledged. Standing alarms can be Acknowledged to get them out of the view if there is no further action to be taken on that alarm. Filters can be used to show or hide Acknowledged Alarms. |
| CLR | If the alarm is acknowledged. Standing alarms can be Acknowledged to get them out of the view if there is no further action to be taken on that alarm. Filters can be used to show or hide Acknowledged Alarms. |
| Additional Info | Additional information clarifying the exact alarm details such as MAC, IP, or other additional information. It can also be used to identify the alarm subtype such as when an access violation occurs. |
| Tracking Notes |
Alarm Tracking notes exist for each alarm instance and allow notes to be added to that specific alarm. |
Alarms Colors and Status
The color of the entry in the Alarm List Manager display corresponds to the color of the most severe alarm (MSA) status. For example, if any OLT has a critical alarm, the network icon is red. For each OLT, the icon color reflects the MSA status for that OLT. Refer to the icon colors, alarm status, and alarm definitions listed in Table BELOW.
Table 1: Alarms View - OLT Icon Colors and Status Descriptions
| 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. |
Reordering of Alarms Table View
Users can drag column headings and re-order columns within the view. In addition, clicking on the heading of a column allows sorting alarms by that column. Columns can be re-sized to fit the screen or see the full text of a given field.
Alarm Counts
Alarm Sync Button
The alarm sync icon 
button at the top of the screen can be utilized to re-load all alarms from a particular OLT to ensure the EMS and OLT are in sync.
Acknowledging Alarms
In some cases, there may be alarms that are long-standing and are not worth a site visit to repair or clear.
Alarms such as these can be acknowledged, and they will turn their status color to white. This indicates to administrators that the alarm has either already been addressed or is not of consequence and can be ignored. It will also indicate that it has been acknowledged in the ACK field.
Unacknowledged Alarms can then be filtered by selecting the Filters -> Acknowledged and clicking the unacknowledged filter button as shown below, and now only unacknowledged alarms will be shown and acknowledged alarms will be filtered.
Alarm Filters
The display can also filter alarms based on multiple criteria; these are found in the filters group area. Each button presents a drop-down that allows filtering alarms to the specific alarms you want to see.
To display alarms with specific severities, one or more can be clicked:
Alarms can be filtered to just the desired probable causes that you want to see. This button supports control clicking to generate a list of alarm probable causes of interest:
Alarm Sorting
The alarms can be sorted by clicking on the heading of a column in the alarms display, and it will sort by that field. The current sort will be indicated by a caret symbol at the top of the column.
Alarms History
The Alarms History view shows all the alarms in time order that have happened. There will be one entry for each alarm set, and each alarm clear. They are all displayed in strict time order. They can be filtered by all the same criteria as the current alarms view, and also support filtering by date range.
Alarm Tracking Notes
Each alarm supports an editable field on the EMS that allows tracking information to be added to the alarm to enable entry of data that will help operators track actions taken on the alarm or information relevant to the alarm. Alarm tracking notes exist for each alarm instance and allow notes to be added to that specific alarm.
Alarm Trouble Shooting Procedure
This field allows adding text to help with local practices for troubleshooting this type of alarm. The Trouble Shooting procedure information is then associated with that type of alarm and visible on all alarms of that type when details are shown.
