2: Two Primary Aa-100/Aa-120S Without Backup - Honeywell NOTIFIER AA Series Installation Manual

Analog audio amplifiers for dvc-ao applications
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Amplifying Audio Messages
3.8.2 Two Primary AA-100/AA-120s Without Backup
Figure 3.13 and Figure 3.14 show the use of two audio amplifiers without backup and Table 3.5 lists the wiring components used.
The speaker circuits on the first audio amplifier share 100/120 watts from that audio amplifier; the speaker circuits on the second
audio amplifier share 100/120 watts from that audio amplifier.
To use high-level audio (25 Vrms output) with four-wire supervision, cut resistor R100 on the AA-120 or AA-120 (Figure 3.10).
This wiring diagram applies to AA-100 and AA-120 audio amplifiers. Connections to plugs P1, P2, P4, P5, P6, P9, and P10 are
identical.
Typical wiring of two primary AA-120 audio amplifiers without using a backup amplifier. This option shows how to connect to speaker
circuit control modules at a distance, using twisted-pair wire (18 AWG recommended):
Unamplified
low-level audio
(Twisted-pair,
14-18 AWG)
DVC-AO Outputs
1, 2, 3, or 4
(See DVC Manual for
details)
Notes: Cables must enter from top of the plug.
*Note: If not using Class A low-level audio return, an R-470 resistor assembly may be installed across P3, pins 4 and 5 of the last
directly connected device on the low-level audio riser; this may help to calibrate the audio amplifier.
18
Item
Low-level audio cable
25-volt audio cable
Table 3.5 Wiring Inventory
25V High-level Output
to Speaker Circuit
Control Modules
(e.g. XP6-C, FCM-1)
1st AA-120
Figure 3.13 Wiring Two AA-120's Without a Backup Amplifier
AA-series Audio Amplifiers Manual for DVC-AO Applications — P/N 52526:B 8/13/2019
Supplied with
AA-100, and AA-120
AA-100, and AA-120
Optional
4-Wire
Supervised
Return
(High-Level)
Cable
75110
Wiring Multiple Audio Amplifiers
Part Number
75110
75109
25V High-level Output
to Speaker Circuit
Control Modules
(e.g. XP6-C, FCM-1)
Supervised
Optional
Class A
Audio
Return*
(Low-Level)
2nd AA-120
Optional
4-Wire
Return
(High-Level)
Shield

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