Electro-Voice P900RL - Handbuch (Seite 32)

32
BLOCK DIAGRAM RCM-24
A
D
A
D
D
A
D
A
A
D
A
D
24 BIT DSP
SRAM 512k x
8
GAINRANGING
24 B
IT ADC
GAINRANGING
24 B
IT ADC
LP
F
LP
F
DUAL
24 B
IT DA
C
INPUT
PARALLEL
-15V +15V
AMPL
IFIER
INTERFACE
CONTROL / S
UPERVISION:
INPU
T / OUTPU
T L
EVEL METE
R
PILOT S
IGNAL G
ENERATOR
PILOT S
IGNAL DETECTION
IMPEDANCE MEASUREMEN
T
AMP INP
UT CH. A (SIGNALA / SENSINA
)
AMP INP
UT CH. B (SIGNALB / SENSINB)
ANALOG POW
ER
SUPPL
Y
CLOCK
12.288 MHz
POWER SUPPLY
CPU
+
FLASH
RAM
A
D
CAN UART
RESET
WATCHDOG
EEPR
O
M
AMP TEMPERATURE
(TEMP)
OUT
PUT CURRENT CH.A (OUTCURA+/-)
OUT
PUT CURRENT CH.B (OUTCURB+/-)
AMP OU
TPUT RELAYS (TIMER)
OUT
PUT 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 AD
C
DUAL AD
C
I/O
DEVICE
ADDRESS
STATUS
SIGNAL PROCESSING:
FILTERS, X-OVER
DELAY
COMPR
ESSOR, 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
OUT
PUT VOLTAGE
CH.B (OUTVOLB+/-)
INPUT
LEVEL CH.
B
INPUT
LEVEL CH.
A
+5V GND
GROUND
FAULT
DETECTION
AMP PR
OTECT (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