18
Auto Mute / Ack Delay Switch Location
(Information Plate
Removed)
A4219-*
Posidrive
screws
CB4072POP
ON
SW7
ON
OFF
1
OFF
3
2
4
SW7
Automatic Acknowledge or Silence Time Selection
FUNCTION
SW7-1
SW7-2
SW7-3
SW7-4
Automatic acknowledge
ON
U
N
U
S
E
D
Automatic mute
OFF
Disable automatic timer
OFF
OFF
Enable 1 minute time delay
ON
OFF
Enable 4 minute time delay
OFF
ON
Enable 8 minute time delay
ON
ON
5.13 Integral Audible Alarm
Each annunciator is equipped with an internal 3.5kHz 95dB(A) audible located behind the integral
pushbutton module. The audible is supplied with an adjustable volume control using a single turn
potentiometer. The potentiometer can be accessed by hinging down the integral pushbutton module
using a small flat blade screwdriver in the slot of the surround bezel. The potentiometer is located in
the top right hand corner of the cell as shown below. On systems with channels configured to
activate either the urgent or non-urgent audible relays it is important to note that the internal audible
will only operate on channels set to operate the critical audible relay HNA (see Function F23).
