hwMonitorOperStatus
1.3.6.1.4.1.2011.6.164.1.2.2.1.1.99
State of the site monitor module. It is an enumeration type:
If the enumeration value is 1, it indicates that the site monitor module is in the normal state;
If the enumeration value is 2, it indicates that the monitor module RS485 port communication failed;
If the enumeration value is 3, it indicates that the monitor module net port communication failed;
If the enumeration value is 4, it indicates that a fault occurs on the monitor module;
If the enumeration value is 254, it indicates monitor module alarm resume;
If the enumeration value is 255, it indicates monitor module operation status unknown.