An Alert Rule has several alert types that specify what conditions generate alert notifications. When a Bell Controller enters an Alarm state, an alert is automatically activated and alert notifications are sent.
There are several alert types that can be enabled or disabled and are commonly enabled based on the condition or device being monitored. By default, an Alert Rule has all alert types enabled and OneVue only generates an alert for a condition or device being monitored.
The section below defines the alert types based on the OneVue solution and its devices.
Bell Controller battery power is for backup-power use only: Alert is activated when a device reported a low battery level during its last check-in. When operating solely on battery backup, its estimated battery life is up to a maximum of 24 hours. Device batteries should be replaced during this alerting condition to avoid a loss of data. All data stored in non-volatile memory is lost when a device loses both AC and battery-backup power.
Alert is activated when a device has not checked-in to OneVue for more than 3 hours. The device is scheduled to check-in hourly.
Time Sync Failure
Alert is activated when the device fails to receive time from its NTP time source during its last check-in. The device may not have the correct time, which will impact the accuracy of its scheduled events.
In addition to alert notifications generated by an Alert Rule, one-time Missed Alarm or False Alarm alert notifications are generated when a state change is not transmitted to OneVue at the time it occurred. Commonly, a state change cannot be transmitted due to a device network connectivity issue.