IGS-NT Combi, SW Version 3.0,   ©ComAp – May 2013                    
IGS-NT-Combi-3.0 Reference Guide.PDF 
 
 
ALARM STATES AND BEHAVIOR OF RELATED OUTPUTS 
 
 
Binary output: Horn 
The output closes together with the output Alarm. It opens when the output Alarm 
is opened or Horn reset button is pressed or Horn timeout has elapsed. 
 
Binary output: CommonAlLev 1 
This output is active if there is at least one unconfirmed 1st-level (yellow) alarm 
present in the alarm list. See the chapter Alarm management for more 
information. 
 
Binary output: CommonAlLev 2 
This output is active if there is at least one unconfirmed 2nd-level (red) alarm 
present in the alarm list. See the chapter Alarm management for more