DAA2 & DAX — P/N 53265:A1 8/24/2011 35
DAA2 Installation DAA2 Digital Audio Amplifiers
In Riser Mode to Additional Amplifiers
When a DAA2’s Riser Mode is programmed R
ISER MODE TO ADDITIONAL AMPLIFIERS (refer to the
DVC Digital Voice Command manual for programming), the amplified signal from the DAA2 may
be connected to an audio coupling transformer (ACT-25 for 25V amplifiers, ACT-70 for 70V
amplifiers) to drive additional AA-Series amplifiers. This mode provides a 200 Hz supervisory tone
required by analog amplifiers.
Figure 2.21 DAA2 Riser Mode to Additional Amplifiers
Refer to the ACT-25 or ACT-70 installation document for more information.
In Riser Mode to Control Modules
When a DAA2’s Riser Mode is programmed R
ISER MODE TO CONTROL MODULES (refer to the DVC
Digital Voice Command manual for programming), the amplified signal from the DAA2 may be
routed to multiple speaker circuits using SLC control modules.
Do not use background music in this mode. The DAA2 will provide speaker circuit supervision
only when idle.
AA-100/AA-100E
or
AA-120/AA-120E
AA-30/AA-30E
Audio Coupling
Transformer
DAA2
Low-level Audio
Low-level Audio
High-level Audio
High-level Audio
To other audio coupling
transformers or 20k ELR
(Class B)
Optional 4-wire return from last audio coupling transformer
TB1
P1
P1
TB1
TB10
TB11
10k ELR (Class A)
DAA2 ACT.wmf
Audio
Coupling
Transformer
Up to 7
low-level
inputs
Up to 7
low-level
inputs
DAA2
TB10
DAA2 spkrcktriser.wmf
20k ELR
(Class B)
SLC Control Module
SLC Control Module
SLC Control Module
Figure 2.22 DAA2 Riser Mode to Control Modules
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