23 
 
 
 
Pressing the SUPV ACK key once globally acknowledges all supervisory conditions that exist 
within the fire alarm system.  In addition, the “SUPERVISORY“ LED changes from flashing to 
steady ON and the tone-alert silences. 
 
If global acknowledge is enabled on your system, use the following procedure to acknowledge the 
supervisory conditions. 
 
1.  Unlock and open the enclosure door.  The alphanumeric display shows the supervisory 
condition, similar to the following example. 
 
 
 
 
 
 
 
2.  Press the SUPV ACK key under the flashing yellow LED.  The alphanumeric display shows 
the area and type of condition.  The tone-alert silences and the yellow LED glows steady. 
 
 
 
 
 
 
 
Read the alphanumeric display.  Investigate the problem to determine its cause.  Restore or replace 
the defective device (switch, wire, notification appliance) in accordance with the manufacturer’s 
instructions, or call Simplex to repair the system.  When the problem causing the supervisory is 
corrected, the supervisory automatically clears and, after a delay, the alphanumeric display 
indicates that the system status is normal. 
 
If individual acknowledge is enabled on your system, you need to separately acknowledge each 
supervisory condition.  Use the following procedure to do this. 
 
1.  Unlock and open the enclosure door.  The alphanumeric display shows the supervisory 
condition, similar to the following example. 
 
 
 
 
 
 
 
19BAcknowledging Supervisory Conditions 
76BGlobally 
Acknowledging 
Supervisory 
Conditions 
77BIndividually 
Acknowledging 
Supervisory 
Conditions 
**SUPERVISORY**  Press <ACK> to review 
FIRE = 0    PRI2 = 0    SUPV = 1    TRBL = 0 
REVERE BASEMENT NORTH WING  ROOM 31 
SPRINKLER MONITOR  ABNORMAL 
**SUPERVISORY**  Press <ACK> to review 
FIRE = 0    PRI2 = 0    SUPV = 1    TRBL = 0