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Crown MPX-6 User Manual

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Page 25
IQ Mixer / Multiplexer  Hardware Installation
Rev. 0
Fig. 6.1  General IQ Mixer Block Diagram
INPUT 1
PRE-AMP
BALANCED
BUCHANAN
CONNECTOR
GAIN POT
(-12 to +21dB)
M/L/P SWITCH
P = +25dB/+44VDC
M = +25dB
L = 0 dB
VCA
1-1
VCA
1-2
RS232/RS422 or
Crown Local Net 
DB25
POWER
SUPPLY
MEMORY
BATTERY
BACKUP
CROWN BUS
AUX PORT
3-PIN
MINI XLR
ENABLE
DSPI
1 2 3 4 5 6 7 8
1 2 3 4 5 6
BAUD RATE
& PARITY
IQ ADDRESS
4-PIN
BUCHANAN
ACTIVE
BALANCE
OUTPUT
AMP
ACTIVE
BALANCE
OUTPUT
AMP
ACTIVE
BALANCE
OUTPUT
AMP
ACTIVE
BALANCE
OUTPUT
AMP
SUMMING
MIX BUS 1
SUMMING
MIX BUS 2
*INPUT
SENSOR
TO
CPU
STACK INPUT 1
STACK INPUT 2
TO
CPU
*OUTPUT
SENSOR
TO
CPU
*OUTPUT
SENSOR
FROM
CPU
FROM
CPU
BUS 1
RELAY
BUS 1
RELAY
FROM
CPU
FROM
CPU
MAIN 1
OUTPUT
BALANCED
BUCHANAN
CONNECTOR
BUS 1
OUTPUT
BALANCED
BUCHANAN
CONNECTOR
MAIN 2
OUTPUT
BALANCED
BUCHANAN
CONNECTOR
BUS 2
OUTPUT
BALANCED
BUCHANAN
CONNECTOR
CPU
(MICRO-
PROCESSOR)
*FROM
INPUT
SENSORS
*FROM
OUTPUT
SENSORS
TO
VCAs
TO BUS
RELAYS
COMMUNICATION
STANDARD
INPUT 2
PRE-AMP
BALANCED
BUCHANAN
CONNECTOR
GAIN POT
(-12 to +21dB)
M/L/P SWITCH
P = +25dB/+44VDC
M = +25dB
L = 0 dB
VCA
2-1
VCA
2-2
*INPUT
SENSOR
TO
CPU
FROM
CPU
FROM
CPU
INPUT 3
PRE-AMP
BALANCED
BUCHANAN
CONNECTOR
GAIN POT
(-12 to +21dB)
M/L/P SWITCH
P = +25dB/+44VDC
M = +25dB
L = 0 dB
VCA
3-1
VCA
3-2
*INPUT
SENSOR
TO
CPU
FROM
CPU
FROM
CPU
INPUT 4
PRE-AMP
BALANCED
BUCHANAN
CONNECTOR
GAIN POT
(-12 to +21dB)
M/L/P SWITCH
P = +25dB/+44VDC
M = +25dB
L = 0 dB
VCA
4-1
VCA
4-2
*INPUT
SENSOR
TO
CPU
FROM
CPU
FROM
CPU
INPUT 5
PRE-AMP
BALANCED
BUCHANAN
CONNECTOR
GAIN POT
(-12 to +21dB)
M/L/P SWITCH
P = +25dB/+44VDC
M = +25dB
L = 0 dB
VCA
5-1
VCA
5-2
*INPUT
SENSOR
TO
CPU
FROM
CPU
FROM
CPU
**INPUT 6
PRE-AMP
BALANCED
BUCHANAN
CONNECTOR
GAIN POT
(-12 to +21dB)
M/L/P SWITCH
P = +25dB/+44VDC
M = +25dB
L = 0 dB
VCA
6-1
VCA
6-2
*INPUT
SENSOR
TO
CPU
FROM
CPU
FROM
CPU
*Sensors not present on MPX-6
**Ambient sensing input on AMB-5