Ansul AUTOPULSE IQ-396X - Page 48

34 AUTOPULSE IQ-396X Operations Doc. 50403:B 07/22/96
Audio Amplifiers
The following figure identifies the AA-100/AA-120 components.
Speaker Trouble
Input Trouble
Amplifier Trouble
Incorrect Level
Battery Trouble
Brownout
Audio Gain
Rotary Switch
(see note)
Normal Level
AA-100/AA-120 Indicators
Notes:
1) During complete loss of primary (AC) power, the AA-100/AA-120 operates
on secondary (battery) power. To conserve secondary power, no LEDs
light on the AA-100/AA-120 while operating on batteries.
2) An audio amplifier does not indicate a trouble condition until 40 seconds
after a fault occurs.
3) To calibrate audio amplifiers, install a 470-ohm resistor at the end of the
low-level audio loop.
AA-100/AA-120
Components
Audio Gain Rotary switch 
refer to Adjusting the Audio
Level in this chapter.
Backup tone switch (SW1) 
refer to Selecting the
AA-100/AA-120 Backup Tone
in this chapter.
SW1  Backup tone
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