10
AA-series Audio Amplifiers Manual for DVC-AO Applications —
P/N 52526:B 8/13/2019
Section 3: Amplifying Audio Messages
3.1 Topics Covered
Audio-amplification topics covered in this section:
•
Section 3.2 “DVC-AO Connections”
•
Section 3.3 “AA-30 Installation”
•
•
Section 3.5 “AA-100/AA-120 Installation”
•
Section 3.6 “AA-100/AA-120 General Operation”
•
Section 3.7 “Adjusting the Audio Gain Level”
•
Section 3.8 “Wiring Multiple Audio Amplifiers”
– Section 3.8.1 “Two Primary AA-30s Without Backup”
– Section 3.8.2 “Two Primary AA-100/AA-120s Without Backup”
– Section 3.8.3 “Two Primary Amplifiers With Backup”
3.2 DVC-AO Connections
The DVC-AO option board generates low-level analog audio messages that may be used as inputs to AA-Series audio amplifiers.
Figure 3.1 and Figure 3.2 provide a closeup view of connections on the DVC-AO, to be used in conjunction with the other wiring dia-
grams in this manual.
D
V
C-
AO
ap
p.w
m
f
Lo
w lev
e
l an
a
log
au
di
o t
o
A
A
s
e
rie
s
au
di
o
DVC-AO Outputs 1 - 4
Opt
io
n
a
l 4-
wi
re
r
e
tu
rn
AA Series
audio amplifier terminals
S + -
Low level
audio IN
Low level
audio
RET
S + -
Figure 3.1 Wiring the DVC-AO Board
