9.10 Alarm 
The alarm function enables users to identify gateway abnormalities in time. When 
an abnormality occurs, the gateway reports an alarm. You can select system-defined 
abnormalities and choose an appropriate notification way to obtain the abnormality 
information. All alarms are recorded in alarm logs so that users can identify 
abnormalities and perform troubleshooting in time. 
Alarm states: 
● Raise: indicates that the alarm has been generated but not been confirmed. 
● Confirm: indicates that the alarm cannot be solved currently. 
● All: indicates all generated alarms. 
Alarm levels: 
● EMERG: The device undergoes a serious error that causes a system reboot. 
● CRIT: The device undergoes an unrecoverable error. 
● WARN: The device undergoes an error that affects system functions.