Notifier DAA2 User Manual

DAA2 & DAX — P/N 53265:A1 8/24/2011 63
DAX Installation DAX Digital Audio Amplifiers
A backup amplifier can support one failed primary amplifier at a time. Should another primary
amplifier also fail, depending on load, the backup amplifier may also fail, generating an
AMPLIFIER LIMIT trouble until the load is reduced or reset.
Figure 3.22 One-to-one or One-to-Many Backup Using BKUP Terminal Blocks
DAP A+
DAP A-
REF A
DVC
TB2
TB3
DAP B+
DAP B-
REF B
DAX
PRIMARY
DAX
BACKUP
Optional Class
A Return
Digital Signal
from DVC
DAPA DAPB
+
+
-
SHLD
-
SHLD
TB4
TB10
TB5
TB11
+
-
SHLD
+
-
SHLD
+
-
SHLD
+
-
SHLD
DAPA DAPB
+
+
-
SHLD
-
SHLD
TB4
TB10
TB5
TB11
+
-
SHLD
+
-
SHLD
+
-
SHLD
+
-
SHLD
To next primary
amplifier for one-
to-many backup*
BKUP2
TB 11
Speaker Circuit
OUT2, TB5
To next primary
amplifier for one-
to-many backup*
BKUP1
TB 10
Speaker Circuit
OUT1, TB4
*Note: No end-of-line resistor is necessary at
the last primary amplifier backup terminal.

Notifier DAA2 Specifications

General

Number of Channels	2
Input Voltage	24 VDC
Frequency Response	400 Hz to 4 kHz
Speaker Circuit	Class B
Humidity Range	10% to 93% non-condensing
Operating Temperature	0°C to 49°C (32°F to 120°F)
Wiring	12 AWG to 24 AWG