Attero Tech BoomBox NA4 - Manual (Page 6)

BoomBox NA4
User Manual
 Attero Tech LLC 2011-2013 Page 2 614-00006-02
1.3 – System Description
Attero Tech
CobraNet
LE
AT2224
PoE
CobraNet
I/F
VCXO
4 Channel
Digital Amp
EEPROM
+3.3V
Switching
Regulator
Speaker Output
Digital Amplifier
Control
Reset and Fault
Interrupts
Digital Audio
AutoSwitch DC
Selector
+3.3V
RJ45
Regulated +12 to
+24VDC
+12V -
+24V
XFMR
Speaker Output
Speaker Output
Speaker Output
Figure 1 – System diagram of a BoomBox
The BoomBox system is shown in Figure 1. Power to the BoomBox is supplied via PoE or a regulated supply. The
CobraNet LE processor receives the digital audio via the CobraNet Ethernet connector. The LE processor passes the
audio to the amplifier which drives the analog output. The amplifier outputs on the NA4 are bridged.