3: Two Primary Amplifiers With Backup - Honeywell NOTIFIER AA Series Installation Manual

Wiring Multiple Audio Amplifiers
Typical wiring of two primary AA-100 audio amplifiers without using a backup amplifier:
Unamplified
low-level audio
(Twisted-pair, 14-
18 AWG)
DVC-AO Outputs
1, 2, 3, or 4
(See DVC Manual for
details)
Note: 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.
3.8.3 Two Primary Amplifiers With Backup
Use an AA-30, AA-100 or AA-120 audio amplifier to back up one or more amplifiers. If an amplifier fails, backup amplifier switching
is automatic.
Connect P6 on the backup amplifier to P4 on the first primary amplifier as shown in Figure 3.15. If there are multiple primary amplifiers,
use P5 to feed the P4 connector on successive amplifiers.
Figure 3.15 shows a typical wiring configuration using an AA-120 as a backup amplifier, Figure 3.16 below shows the use of two AA-
30s where one serves as a backup, and Table 3.6 lists the wiring components used.
• This wiring diagram applies to AA-30, AA-100, and AA-120 audio amplifiers. Connections to plugs P1, P2, P4, P5, P6, P9, and
P10 are identical.
AA-series Audio Amplifiers Manual for DVC-AO Applications — P/N 52526:B 8/13/2019
70V High-level Output
to Speaker Circuit
Control Modules
(e.g. XP6-C, FCM-1)
1st AA-100
Figure 3.14 Wiring Two AA-100's Without a Backup Amplifier
Item
Low-level audio cable
25-volt audio cable
Backup audio Cable
Table 3.6 Wiring Inventory
Optional
4-Wire
Supervised
Return
(High-Level)
Cable
75110
Supplied with
AA-30, AA-100, AA-120
AA-30, AA-100, AA-120
Amplifying Audio Messages
70V High-level Output
to Speaker Circuit
Control Modules
(e.g. XP6-C, FCM-1)
Optional
Optional
Supervised
Class A
Audio
(High-Level)
Return*
(Low-Level)
2nd AA-100
Part Number
75110
75109
75108
4-Wire
Return
Shield
19