There are three summary relays, one for each alarm level, an audible buzzer and an Acknowledge push button switch. It functions as a typical annunciator sequence per Instrument Society of America
Sequence A, automatic reset, as described below:
There are three summary relays, one for each alarm level, an audible buzzer and an Acknowledge push button switch
| There are three summary relays, one for each alarm level, an audible buzzer and an Acknowledge push button switch |