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AA-100/AA-120 Audio Amplifiers Installation/Operation Manual — P/N 9000-0573:C 03/12/2020
Description
Overview AA-100/AA-100E and AA-120/AA-120E Audio Amplifiers
Section 1: Description
1.1 Overview AA-100/AA-100E and AA-120/AA-120E Audio
Amplifiers
1.1.1 AA-100/AA-100E Audio Amplifier
The AA-100/AA-100E audio amplifier provides up to 100 watts of power. There are two outputs
provided:
•
one output at 70.7 V
RMS
•
one output at 25 V
RMS
The combined power taken from one or both of these outputs must not exceed a total of 100 watts.
When output wiring supervision is required, a four-wire high-level output/return circuit must be
employed. The AA-100/AA-100E output wiring must always employ the four-wire configuration.
Cut R-100 to enable output wiring supervision in the AA-100/AA-100E. When using both outputs
of the AA-100/AA-100E, (25 V
RMS
and 70.7 V
RMS
), only the 70.7 V output wiring can and must
be supervised. Therefore, the 25 V
RMS
output wiring must NOT leave the cabinet and must NOT
be connected to the four-wire return input. The speaker zone selection is performed by the INI-
VGE Voice Gateway.
Figure 1.1.1.1 illustrates the AA-100/AA-100E amplifier.
Figure 1.1.1.1 AA-100/AA-100E Audio Amplifier Diagram
1.1.2 AA-120/AA-120E Audio Amplifier
The AA-120/AA-120E audio amplifier provides up to 120 watts of power. One 25 V
RMS
output is
provided. The power taken from this output must not exceed 120 watts total. A four-wire high-level
output/return circuit must be employed when output wiring supervision is required. The AA-
120/AA-120E output wiring must employ the 4-wire configuration when the output wiring con-
nects to the AOM modules located in another cabinet. Cut R-100 to enable output wiring supervi-
sion in the AA-120/AA-120E. Speaker zone selection is performed by the INI-VGE Voice
Gateway.
1.1.3 Trouble Contacts
Trouble contacts on the amplifiers close to report problems with audio input wiring, brown out, bat-
teries, output wiring, or the amplifier itself. Trouble contact wiring must not leave the cabinet.
1.1.4 Backup Amplifiers
Only an AA-120/AA-120E may be used as a backup amplifier for one or more AA-100/AA-100E
and AA-120/AA-120E amplifiers. In the event of an amplifier failure, backup amplifier switching
is automatic. When one backup amplifier is serving multiple primary amplifiers, only one primary
amplifier failure will be supported. Individual LEDs signal each source of trouble to aid in trouble-
shooting. The supervision of the backup amplifier output is done through the four-wire return cir-
cuit on the backup amplifier. The high-level backup input on the AA-100/AA-100E or AA-
120/AA-120E must be 25 V
RMS
only. Use output wiring supervision whenever high-level audio
amplifier output leaves the cabinet.
NOTE: UL 10th Edition Standard Requirement:
For UL 10th Edition standard applications, these amplifiers support only one audio zone.
