ICP DAS USA RS-405/405F - Manual (Page 41)

Industrial Redundant Ring Switch – RS Series User Manual
TDRS4050601 hh
Alarm Output and Event Log
Green alarm sign indicate there is no unusual event.
Red alarm sign indicate there is unusual event(s) happening. It is
recommended to check the error message and solve the problems.
Event Log record current events. You can monitor current status and recognize the
problems easily by reading messages displayed on this Event Log Viewer.