A
D
A
D
D
A
D
A
A
D
A
D
24 BIT
DSP
SRAM
512k x
8
GAINRANGING
24 BIT ADC
GAINRANGING
24 BIT ADC
LP
F
LP
F
DUAL
24 BIT DA
C
INPUT
PARALLEL
-15V
+15V
AMPLIFIER
INTERFACE
CONTROL / SUPERVISION:
INPUT / OUTPUT LEVEL METE
R
PILOT SIGNAL GENERATOR
PILOT SIGNAL DETECTION
IMPEDANCE MEASUREMEN
T
AMP INPUT CH. A (SIGNALA / SENSINA)
AMP INPUT CH. B (SIGNALB / SENSINB)
ANALOG
POWER
SUPPLY
CLOCK
12.288 MHz
POWER
SUPPLY
CPU +
FLASH
RAM
A
D
CAN
UART
RESET
WATCHDOG
EEPROM
AMP TEMPERATURE (TEMP)
OUTPUT CURRENT CH.A (OUTCURA+/-)
OUTPUT CURRENT CH.B (OUTCURB+/-)
AMP OUTPUT RELAYS (TIMER)
OUTPUT VOLTAGE CH.A (OUTVOLA+/-)
STANDBY POWER SOURCE
+5V
+3.3V
DC
DC
RJ-45
MONITOR BUS
CAN / RS-485
+5V
CAN / RS-485
TRANSCEIVER
MONITOR
OUT B
MONITOR
IN A
MONITOR
IN B
MONITOR
OUT A
SLAVE OUT A
SLAVE OUT B
CLOCK
SPI
D
A
D
A
DUAL ADC
DUAL AD
C
I/O
DEVICE
ADDRESS
STATUS
SIGNAL PROCESSING:
FILTERS, X-OVER
DELAY
COMPRESSOR, LIMITER
ROUTING, LEVEL, POLARITY
I/O
MAINS POWER ON/OFF (POWER_ON)
AMP TYPE CODE (AMP_ID1-8)
LIMITER CH. A (LIMOUTA)
LIMITER CH. B (LIMOUTB)
GPIO
CONTROL
PORT
8
OUTPUT VOLTAGE CH.B (OUTVOLB+/-)
INPUT LEVEL CH. B
INPUT LEVEL CH.
A
+5V
GND
GROUND
FAULT
DETECTION
AMP PROTECT (PROTECT)
CHASSIS
8
STANDBY/ON SIGNAL (STANDBY)
4
CHANNEL A
INPUT
CHANNEL B
PARALLEL
GROUND FAULT CH. A (GNDFLTA)
GROUND FAULT CH. B (GNDFLTB)
VU INPUT A
VU INPUT B
DSP DIGITALBOARD
80477
NRS 90227
NRS 90208
NRS 90208
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