CROWN MPX 6 User Manual

[
IQ Mixer/Multiplexer  
AMB-5, MPX-6, SMX-6  
HARDWARE INSTALLATION MANUAL  
©1993 by CROWN INTERNATIONAL, INC.  
Mailing Address:  
P.O. Box 1000  
Elkhart, IN 46515-1000  
Service Department:  
1718 W. Mishawaka Rd  
Plant 2 SW  
Elkhart, IN 46517  
TrademarkNotice:  
®
AMB-5,SMX-6,MPX-6,Distributed Intelligence, and Algoare trademarks and Crown,  
®
®
Amcron, IQ System, PCC ® and PZM® are registered trademarks of Crown International, Inc.  
Modified for the  
WorldWideWeb  
All other trademarks are the property of their respective owners.  
The information furnished in this manual does not include all of the details of design, production, or  
variations of the equipment. Nor does it cover every possible situation which may arise during installation,  
operation or maintenance. If you need special assistance, beyond the scope of this manual, please contact  
our Crown Technical Support Group.  
Crown Technical Support Group, POB 1000, Elkhart, Indiana 46515-1000 U.S.A.  
Phone: 800-342-6939 or 219/294-8200 Fax: 219-294-8301  
WARNING  
TO REDUCE THE RISK OF ELECTRIC  
SHOCK, DO NOT EXPOSE THIS  
EQUIPMENT TO RAIN OR MOISTURE!  
IQ Mixer/Multiplexer Hardware Installation  
CONTENTS  
1 Welcome .......................................................................7  
1.1 Options .................................................................7  
1.2 Unpacking.............................................................7  
2 Facilities........................................................................8  
3 Hardware Installation .................................................. 10  
3.1 Connecting to a Host Computer (Step 1) ........... 10  
3.1.1 Communication Standards & Parameters 11  
3.2 Connecting to the Crown Bus (Step 2) ............... 12  
3.2.1 Setting the IQ Address............................. 12  
3.2.2 Crown Bus Wiring .................................... 13  
3.3 Connecting the Audio Ins & Outs (Step 3) ......... 15  
3.3.1 Mic/Line Inputs ......................................... 15  
3.3.2 AMB-5 Ambient Sensing Input ................. 16  
3.3.3 Audio Outputs .......................................... 16  
3.3.4 Stack Inputs ............................................. 17  
3.3.5 Paralleling Inputs...................................... 18  
3.4 Connecting Auxiliary Devices (Step 4)............... 19  
4 Options ....................................................................... 20  
4.1 Option 1: A 1-Loop IQ Interface ......................... 20  
4.2 Option 4: Crown Local Net ................................. 20  
4.2.1 Wiring the Crown Local Net ..................... 20  
5 Service........................................................................ 22  
5.1 Amcron Service .................................................. 22  
5.2 Crown Service..................................................... 22  
5.2.1 Service at a Crown Service Center .......... 22  
5.2.2 Crown Factory Service ............................. 22  
6 Technical Information ................................................. 23  
6.1 Audio................................................................... 23  
6.1.1 Input Section ............................................ 23  
6.1.2 VCA Sections............................................ 23  
6.1.3 Output Section.......................................... 23  
6.1.4 Level Sense Circuits (AMB-5 & SMX-6) ... 23  
6.2 Control and Interface Section ............................. 23  
6.2.1 Crown Bus Interface................................. 23  
6.2.2 RS232/RS422 Interface............................. 23  
6.2.3 D/A Converter .......................................... 23  
6.2.4 Log Amp and A/D Converter .................... 24  
6.2.5 Auxiliary Port ............................................ 24  
7 Specifications ............................................................. 26  
7.1 General ............................................................... 26  
7.2 Audio................................................................... 26  
A Appendix ..................................................................... 27  
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IQ Mixer/Multiplexer Hardware Installation  
ILLUSTRATIONS  
1.1 Three Mixer / Multiplexer Models ............................ 6  
2.1 Front and Rear Panels .............................................. 8  
3.1 An IQ System with a PC Host Computer, etc. ........10  
3.2 RS232 Cable Wiring for a PC ..................................11  
3.3 RS422 Cable Wiring for a Macintosh ......................11  
3.4 RS232 Cable Wiring for a Macintosh ......................11  
3.5 Selecting the Communication Parameters ..............12  
3.6 Crown Bus Wiring for Removable Barrier Blocks...13  
3.7 Crown Bus Wiring for 5-pin DIN Input ....................14  
3.8 Crown Bus Wiring for 4-pin DIN Output .................14  
3.9 Crown Bus Wiring Loopš from Output to Input, etc.14  
3.10 An Audio Input Section ............................................15  
3.11 Suggested Audio Input Gain Control Settings ........15  
3.12 Balanced Audio Input Wiring ...................................15  
3.13 Unbalanced Audio Input Wiring ..............................16  
3.14 Sensing Input Section..............................................16  
3.15 An Audio Output Section .........................................17  
3.16 Balanced Audio Output Connections ......................17  
3.17 Unbalanced Audio Output Connections..................17  
3.18 A 12x2 Mixer Using 2 Mixer/Multiplexers...............17  
3.19 Stacking the Outputs of Multiple Units ...................18  
3.20 A 6x8 Mixer Using 4 Mixer/Multiplexers.................18  
3.21 Paralleling the Inputs of Multiple Units ...................18  
3.22 A 12x8 Mixer Using 8 Mixer/Multiplexers...............18  
3.23 Sample Auxiliary System Wiring .............................19  
3.24 Internal Auxiliary Circuit ..........................................19  
4.1 A Crown Local Net RS422 Serial Loop ....................20  
4.2 Crown Local Net Wiring...........................................21  
6.1 General IQ Mixer Block Diagram ............................25  
A.1 IQ Address Switch Settings from 0 to 125..............27  
A.2 IQ Address Switch Settings from 126 to 250..........28  
Page 5  
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IQ Mixer/Multiplexer Hardware Installation  
DSPI  
ENABLE  
DSPI  
ENABLE  
Fig. 1.1 Three Mixer / Multiplexer Models  
Page 6  
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IQ Mixer/Multiplexer Hardware Installation  
1.1 Options  
1 Welcome  
In a standard IQ System, the IQ components like  
the mixer/multiplexers are connected to the system  
via the Crown Bus. The Crown Bus is a serial com-  
munication loop which carries IQ commands and  
data. IQ mixer/multiplexers are also able to bypass  
the Crown Bus and connect (one at a time) directly  
to a computer (PC compatible or Macintosh®). Once  
configured, the mixer/multiplexers can be discon-  
nected and allowed to operate by themselves.  
Thank you for purchasing a Crown IQ mixer/multi-  
plexer. IQ mixer/multiplexers are intelligent mixers  
with special signal routing capabilities. Their intelli-  
gence stems from a powerful onboard microproces-  
sor which enables them to be controlled and  
monitored by a Crown IQ System®. Each input and  
each output can be individually controlled and, with  
their distributed intelligencecapability, continue to  
operate even when an IQ System is not connected.  
Option 1 allows an AMB-5, MPX-6 or SMX-6 to con-  
nect to a host computer and serve as a Crown Bus  
interface between the computer and other IQ com-  
ponents. This eliminates the need to purchase a  
separate IQ interface (IQ-INT) for a small IQ Sys-  
tem.  
In addition to two main outputs (one for each chan-  
nel), each model has a second set of ÷busš outputs  
which are switched on/off by a relay. This enables  
many mixer/multiplexers to be connected to a com-  
mon audio bus without loading it down. They are  
designed to work as stand-alone units in a small  
audio system or as modules in a large audio sys-  
tem.  
Option 4 allows an SMX-6 (only) to connect to a  
Crown Local Net loop. The Crown Local Net is a  
communication subsystem within an IQ System.  
Using it, two or more SMX-6s can communicate  
between themselves to keep track of the total num-  
ber of open microphones. This information can then  
be used to prevent feedback when more mics are  
open.  
Three different models are available to serve a wide  
variety of needs. The MPX-6 and SMX-6 models  
operate as 6x2 mixers. The AMB-5can operates  
as a 5x2 mixer. Multiple units can be connected  
together to form larger mixers. For example, a MPX-  
6 and SMX-6 can be connected together to form a  
single 12x2 mixer. They can also be connected as a  
6x4 mixer.  
Note: Options 2-3 are not presently available.  
The MPX-6 is the simplest of the three models. It  
provides basic mixing capabilities. All control and  
monitor functions are handled by the IQ System.  
The MPX-6 does not have the automatic mixing  
capability of the other models because it does not  
have input sensing.  
1.2 Unpacking  
Please unpack and inspect the unit for any damage  
that may have occurred during transit. If any dam-  
age is found, notify the transportation company im-  
mediately. Only you, the consignee, may initiate a  
claim with the carrier for damage resulting from  
shipment. Crown will cooperate fully as needed.  
Save the shipping carton as evidence of damage for  
the shipper’s inspection.  
The SMX-6 is more sophisticated because it has  
sensing ability. A sensing circuit is located at the  
beginning of each input to sense the input signal  
level ahead of any signal processing. Similar sen-  
sors are located at each output. These sensors,  
along with its onboard intelligence, enable the SMX-  
6 to perform many versatile functions like automatic  
mixing, compression, and automatic level control.  
Even if the unit arrived in perfect condition, as most  
do, save all packing materials so you will have them  
if you ever need to transport the unit. NEVER SHIP  
THE UNIT WITHOUT THE FACTORY PACK.  
The AMB-5 has the same functions as an SMX-6  
plus it has the ability to sense the ambient sound  
level and automatically adjust its output level ac-  
cordingly. In this way it serves as the ultimate  
automatic level controller. Input 6 is dedicated as  
the sensing input, leaving five to function normally  
as a 5x2 mixer. Unlike the SMX-6, signal processing  
is only available for Channel 1. Channel 2 functions  
like an MPX-6.  
Page 7  
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IQ Mixer/Multiplexer Hardware Installation  
(Front View)  
CROWN  
SERIAL DATA LOOP  
IN  
OUT IN  
BUS  
STACK  
IN  
STACK  
IN  
AUDIO  
OUT  
AUDIO  
OUT  
AUDIO  
-5  
ADD 25  
AUDIO  
ADD 25  
AUDIO  
ADD 25  
AUDIO  
-5  
ADD 25  
AUDIO  
ADD 25  
AUDIO  
ADD 25  
120 VAC  
60 Hz  
AUX  
CTRL  
0
0
0
0
0
0
5
5
5
5
5
5
FOR MIC  
FOR MIC  
FOR MIC  
FOR MIC  
FOR MIC  
FOR MIC  
IN  
IN  
IN  
IN  
IN  
IN  
-5  
-5  
-5  
-5  
10  
10  
10  
10  
10  
10  
-10  
-10  
-10  
-10  
-10  
-10  
15  
21  
15  
21  
15  
21  
15  
21  
15  
21  
15  
21  
2
1
6
5
4
3
2
1
+
+
MAIN  
BUS  
MAIN  
BUS  
-12  
-12  
-12  
-12  
-12  
-12  
M
L
P
M
L
P
M
L
P
M
L
P
M
L
P
M
L
P
INPUT  
GROUND  
ONLY  
RS232 / RS422  
+
+
+
+
+
+
+
+
+
+
(Rear View)  
Figure 2.1 Front and Rear Panels  
2 Facilities  
AUX Connector  
Enable Indicator  
This amber enable indicator shows that the unit is  
receiving AC power.  
A 3-pin male mini-XLR connector is used for remote  
control of equipment lacking the Crown Bus. A 10  
VDC power source is provided to control solid state  
relays and other logic circuits. The auxiliary con-  
nector also includes a high-impedance 10 VDC in-  
put. (Section 3.4)  
Audio Input Gain Control  
Each of the six input channels has a screwdriver-  
set, calibrated gain potentiometer for adjusting the  
input gain to the input signal level. They can be  
used to compensate for different microphone sensi-  
tivities. (Section 3.3.1)  
Stack Audio Inputs  
These two stack inputs allow you to multiply the  
number of audio inputs by stacking 2, 3, or more  
units to build a 12x2, 18x2, or larger mixer. (Section  
3.3.3)  
RS232/RS422 Connector  
This DB25 connector functions as a standard RS232  
or RS422 serial communications port. It can be used  
for connection directly to a host computer (Section  
3.1) or, if Option 4 was purchased, for connection to  
a Crown Local Net loop (Section 4.2).  
DSPI  
This yellow LED is a Data Signal Presence Indicator.  
It flashes whenever a valid IQ command has been  
received. The indicator can also be forced on to aid  
rapid troubleshooting of the Crown Bus wiring.  
Crown Bus Ground Connector  
This chassis ground stud is provided to connect an  
Page 8  
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IQ Mixer/Multiplexer Hardware Installation  
Important: TURN THE UNIT OFF before connecting to the RS232/RS422 (F) or Crown Bus  
(H) connectors. TURN THE UNIT OFF before changing the settings of the IQ Address (M),  
Baud Rate & Parity (N) or Communication Standard (O) switches.  
with the inputs of other mixer/multiplexers to make a  
6x4 (or larger) mixer. (Section 3.3.1)  
optional shield for the Crown Bus cable. Only the  
shield of the input cable should be connected.  
Shielded wire will reduce the total distance a Crown  
Bus loop can be run, but shielding may be neces-  
sary to reduce interference with certain kinds of  
audio cables. (Section 3.2)  
Input Selector  
A three-position input selector accommodates dif-  
ferent input signal levels. The three settings are L  
for line-level input, M for mic-level input, and P for  
mic-level input with phantom power. The P setting  
supplies 44 volts DC for phantom-powered mics.  
Crown Bus Input/Output Connector  
A 4-pin removable barrier block plug is used for  
input and output connection to the Crown Bus. The  
pins are numbered backward from right to left (as  
you face the back panel of the unit). Pin 1 is input  
negative (–), pin 2 is input positive (+), pin 3 is  
output negative (–), and pin 4 is output positive (+).  
(Section 3.2)  
IQ Address  
An 8-section DIP switch is used to set the IQ ad-  
dress of the unit. The unit must be given a unique IQ  
address so it can be independently controlled and  
monitored by a the system. It must also be set  
properly if the unit is to be used in a Crown Local  
Net. Two or more IQ components of the same type  
should NEVER have the same address on the same  
Crown Bus loop. (Section 3.2) Important: The IQ  
address should only be set with the power cord  
disconnected from the AC supply.  
Main Audio Outputs  
A 3-pin removable barrier block plug is used to  
connect to the main output of each channel. These  
outputs can also be connected to the stack inputs  
(B) of other mixer/multiplexers to make a 12x2 (or  
larger) mixer. (Section 3.3.2)  
Baud Rate & Parity  
Auxiliary Bus Audio Outputs  
A 6-section DIP switch is used to set the baud rate  
and parity for RS232/RS422 serial communication.  
This is only necessary when the DB25 connector (F)  
is used. Important: The baud rate should only be set  
with the power cord disconnected from the AC sup-  
ply.  
A 3-pin removable barrier block plug is used to  
connect to the bus audio output of each channel.  
The bus outputs are isolated switchable outputs that  
can be turned on when needed by the IQ System.  
This allows many multiplexers to be tied together on  
the same bus without loading down the outputs.  
(Section 3.3.2)  
Communication Standard  
A communication standard switch which allows the  
unit to be configured for the RS232 or RS422 com-  
munications. (Sections 3.1³3.1.1) Important: The  
communication standard should only be set with the  
power cord disconnected from the AC supply.  
Audio Inputs  
A 3-pin removable barrier block plug is used to  
connect to the input of each of the six audio inputs.  
The input gain control (E) and the input selector (K)  
of each one should be set to match the input signal  
level. These inputs can also be connected in parallel  
Page 9  
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IQ Mixer/Multiplexer Hardware Installation  
RS232  
DSPI  
ENABLE  
DSPI  
ENABLE  
ODEP  
IOC  
ENABLE  
ODEP  
IOC  
ENABLE  
POWER  
POWER  
SPI  
SPI  
CH1  
CH2  
CH1  
CH2  
OFF  
OFF  
ODEP  
IOC  
ENABLE  
ODEP  
IOC  
ENABLE  
POWER  
POWER  
SPI  
SPI  
CH1  
CH2  
CH1  
CH2  
OFF  
OFF  
ODEP  
IOC  
ENABLE  
ODEP  
IOC  
ENABLE  
POWER  
POWER  
SPI  
SPI  
CH1  
CH2  
CH1  
CH2  
OFF  
OFF  
Fig. 3.1 An IQ System with a PC Host Computer and Two Mixer/Multiplexers  
How the mixer/multiplexer will be used will deter-  
3 Hardware Installation  
mine whether or not it will need to be connected  
directly to a host computer. If the unit will be con-  
nected to the Crown Bus it will not need to be  
connected directly to a host computer. The following  
circumstances require connection to a host com-  
puter:  
The installation of an IQ mixer/multiplexer consists  
of two major parts: installing the hardware and con-  
figuring the software. This manual deals only with  
hardware installation. Refer to the appropriate soft-  
ware manual for instructions in setting up and oper-  
ating your unit.  
• If a Crown Bus will not be used, the mixer/mul-  
tiplexer will need to be connected to a host  
computer so the software inside the unit can  
be configured. Afterward, if manual control is  
not required, the host computer can be discon-  
nected.  
Provide adequate cooling if the unit will be used in a  
hot environment. Allow one empty rack space (1.75  
inches or 4.4 cm.) between each unit if more than  
four units will be stacked in a cabinet. Each empty  
rack space should be sealed with a blank rack  
panel.  
• If the mixer/multiplexer must be configured be-  
fore it is installed into an IQ System, it must be  
connected directly to a host computer for con-  
figuration. The onboard battery of the unit will  
maintain its software configuration for up to 60  
days without it being plugged into an AC  
source.  
The hardware installation is divided into 4 steps:  
1) connecting to a host computer, 2) connecting to  
the Crown Bus, 3) connecting the audio inputs and  
outputs and 4) connecting auxiliary devices.  
3.1 Connecting to a Host Computer (Step 1)  
An IQ host computer is an IBM® PC compatible or  
Apple® Macintosh computer which is used to con-  
figure or control/monitor part or all of an IQ System.  
Depending upon the design of your IQ System, it  
may or may not require a host computer during  
normal operation.  
• If the mixer/multiplexer will be used as an IQ  
interface (Option 1) it will need to be con-  
nected directly to a host computer.  
One of the advantages of connecting directly to a  
host computer is that a separate IQ interface (IQ-  
INT) is not required. If you plan to configure the unit  
Page 10  
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IQ Mixer/Multiplexer Hardware Installation  
while it is connected to the Crown Bus, skip ahead  
to Section 3.2.  
It is also possible to use RS232 to communicate  
with a Macintosh computer. Here’s how to wire the  
cable:  
There are two main communication standards sup-  
ported by the unit for serial communication with a  
host computer. They are RS232 and RS422.  
Macintosh  
SMX-6 (RS232)  
(RS232)  
6
7
8
1
13  
3
4
5
RS232 is commonly used with IBM PCs and com-  
patibles. Because it uses unbalanced signal wiring,  
it cannot be used for distances over 50 feet (15.2  
m).  
14  
25  
1
2
Cable connectors are numbered as they appear from the front.  
PIN  
1
2
3
4
PIN  
4
5
2
7
Output handshake  
Input handshake  
Transmit data –  
Ground  
Clear to Send (CTS)  
Request to Send (RTS)  
Receive Data (RXD)  
Signal Ground (GND)  
Transmit Data (TXD)  
RS422 is commonly used with Macintosh comput-  
ers. It uses balanced signal wiring and can be used  
for distances up to 2,000 feet (610 m).  
Receive data –  
5
3
Not used 6,7,8  
Fig. 3.4 RS232 Cable Wiring for a Macintosh  
Although uncommon, RS423 communication can  
also be used. It uses the unbalanced transmitter  
(TXD) wiring of RS232 and the balanced receiver  
(RXD) wiring of RS422 to provide signal ground  
isolation between the transmit and receive lines.  
With a proper cable it can be used over a greater  
distance than RS232…but a shorter distance than  
RS422. For details contact either Crown Tech. Sup-  
port or Amcron Tech. Services (see page 22).  
Important: Do not use twisted-pair wire for RS232  
because it increases crosstalk. Instead use an un-  
twisted cable or ribbon cable. Twisted-pair wire can  
be used for RS422.  
3.1.1 Communication Standards and Parameters  
Before communication can take place between the  
unit and a host computer the communication stan-  
dard must be selected and the communication pa-  
rameters must be set with switches accessed  
through an opening in the side of the chassis. (Fig-  
ures 2.2 and 3.5)  
The following illustrations show how to wire the two  
most common serial cables:  
PC (RS232)  
SMX-6 (RS232)  
1
5
1
13  
Caution: Be sure to disconnect the AC power from  
the unit before selecting a different communication  
standard or changing the parameters.  
6
9
14  
25  
Cable connectors are numbered as they appear from the front.  
PIN  
PIN  
Not used 1,4,6,9  
IBM PC-compatible computers typically have an  
RS232 serial port, so the communication standard  
switch should be moved to the right (Figure 3.5).  
With a Macintosh host computer, the standard is  
usually RS422, and the communication standard  
switch should be moved to the left. In the rare event  
that RS423 communication is used, set the switch to  
the RS422 position.  
ReceiveData (RXD)  
Transmit Data (TXD)  
Signal Ground (GND)  
Request to Send (RTS)  
Clear to Send (CTS)  
2
3
5
7
8
3
2
7
4
5
Transmit Data (TXD)  
Receive Data (RXD)  
Signal Ground (GND)  
Clear to Send (CTS)  
Request to Send (RTS)  
Fig. 3.2 RS232 Cable Wiring for a PC  
Macintosh  
(RS422)  
SMX-6 (RS422)  
Setting the communication parameters for RS232  
and RS422 serial communication is accomplished  
using the six segment baud rate and parity DIP  
switch in Figure 3.5. The first four switches select  
the baud rate and the last two set the parity. Use the  
fastest baud rate possible. The highest baud rate  
supported by the unit is 19.2 K baud. Parity check-  
ing is not presently supported and should be OFF.  
The odd/even parity bit doesn’t matter when parity  
is switched OFF. The unit has been factory set to 1  
stop bit and 8 data bits.  
6
7
8
1
13  
3
4
5
14  
25  
1
2
Cable connectors are numbered as they appear from the front.  
PIN  
1
2
3
4
5
6
7
8
PIN  
4
5
2
7
Output handshake  
Input handshake  
Transmit data –  
Ground  
Clear to Send (CTS)  
Request to Send (RTS)  
Serial In (–)  
Signal Ground (GND)  
Serial Out (–)  
Receive data –  
Transmit data +  
Not used  
3
10 Serial In (+)  
Receive data +  
9
Serial Out (+)  
Fig. 3.3 RS422 Cable Wiring for a Macintosh  
Rev. 0  
Important: The communication standard and param-  
Page 11  
IQ Mixer/Multiplexer Hardware Installation  
BAUD RATE & PARITY SETTINGS  
1
2
3
4
5
6
19200  
9600  
4800  
2400  
1200  
300  
BAUD RATE  
& PARITY  
COM  
STANDARD  
BAUD  
RATE  
IQ ADDRESS  
RS422 RS232  
BAUD RATE PARITY  
OFF  
ON  
150  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
ON  
OFF  
PARITY  
MAC  
PC  
ODD  
EVEN  
Fig. 3.5 Selecting the Communication Standard and Parameters  
• If communication problems persist, check the  
serial cable for improper wiring or possible  
shorted or broken wires.  
eters of the mixer/multiplexer and the host computer  
must be the same. Any mismatch will prevent com-  
munication from taking place.  
• For further assistance call either the Crown  
Technical Support Group or Amcron Technical  
Services Dept. (see page 22 for telephone  
numbers).  
The communication parameters of the host com-  
puter are set by the IQ software. This is true for both  
PCs and Macintosh computers. Please refer to the  
appropriate software manual for details.  
Here are some important guidelines when configur-  
ing serial communication:  
3.2 Connecting to the Crown Bus (Step 2)  
The Crown Bus is a serial communication loop de-  
signed to transmit IQ commands and data. As a  
communication standard it is independent of the  
wiring system used. This flexibility is a great  
strength, enabling a Crown Bus loop to be wired  
with either fiber optic cabling or with inexpensive  
twisted-pair wire, whichever the installation re-  
quires. A single IQ System can have more than one  
Crown Bus loop. To function properly, a Crown Bus  
loop must be unbroken.  
• Use the same communication standard at each  
end. If the unit is set for RS232, the computer  
must also be set for RS232. (Refer also to the  
appropriate IQ software manual.)  
• Use the same communication parameters at  
each end. The unit and the computer must be  
set for the same baud rate and parity check-  
ing.  
• Use the highest baud rate possible but be  
aware that the communication circuitry (UART)  
in some PCs cannot function over 9600 baud.  
(IQ mixer/multiplexers can be set as high as  
19.2 K baud.)  
3.2.1 Setting the IQ Address  
Before installing a mixer/multiplexer on a Crown  
Bus loop, it must be given a unique IQ address.  
This address will be used by the IQ System when-  
ever it communicates with the unit.  
• If the host computer fails to communicate with  
the unit and the communication standard and  
parameters are set correctly, try reducing the  
baud rate of both the unit and the computer.  
The 8-segment DIP switch shown in Figure 3.5 is  
used to set the IQ address. No two IQ components  
of the same model which are connected to the same  
Page 12  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
Crown Bus can have the same address. Suppose,  
for example, an IQ System has two Crown Bus  
loops as shown in Figure 3.1 and an SMX-6 is  
installed in loop 1 and given IQ address 77. No  
other SMX-6 can be given the same address in  
Crown Bus loop 1. However, an SMX-6 can have the  
same address if it is installed in loop 2. Different IQ  
components can have the same address and be in  
the same Crown Bus loop. In the previous example,  
an AMB-5 could be installed in loop 1 and use IQ  
address 77 because it is not an SMX-6.  
vices (see page 22) for information on adding the  
appropriate transceivers.  
Here are some guidelines for twisted-pair wiring:  
Use shielded twisted-pair wire at least 26  
AWG in size. The wire should be of good qual-  
ity and should NOT have high capacitance (30  
picofarads/foot or less is good). Shielded wire  
is recommended for situations where interfer-  
ence is a problem. (West Penn 452 or an  
equivalent wire works well.) The shield serves  
two purposes: First, it helps prevent the IQ  
data signal from transmitting to nearby audio  
wiring. Second, it helps prevent outside RF  
from interfering with the data signal. However,  
in most cases interference is not a problem  
and, since unshielded wire has lower capaci-  
tance, it is a better choice.  
A valid IQ address is any number from 1 to 250. Do  
not use a number higher than 250 since they are  
reserved for special use. An address of ÷0š (zero)  
should not be used. The IQ address is determined  
by adding the values of each segment of the DIP  
switch which is turned on (pushed down). Figure 3.5  
shows the value of each DIP switch segment. For  
example, if the desired unit address is 1, only  
switch 1 should be down. If the desired unit address  
is 217, switches 8, 7, 5, 4, and 1 should be down  
(128+64+16+8+1=217). See Appendix A for list of  
all valid DIP switch settings.  
• If shielded wire is used, connect the shield  
only to the input connector.  
Add an IQ Repeater for very long  
loops…greater than 1,000 feet (305 m)…or  
when required by high-capacitance wire. Al-  
though we recommend adding a repeater for  
loops longer than 1,000 feet, it is often pos-  
sible to go 2,000 feet (610 m) or more. The  
most significant characteristic of the wire is its  
capacitance. The lower the capacitance, the  
longer the loop can be. Unshielded wire typi-  
cally has less capacitance.  
If the IQ interface used is an IQ-INT, the system can  
have up to eight separate Crown Bus loops. This will  
enable the audio system to be divided into different  
zones, each with its own Crown Bus loop. Dividing  
the IQ System into multiple Crown Bus loops has  
advantages and disadvantages which are listed be-  
low:  
Never use the ground wire in a mic snake  
line. It may sometimes be convenient to run  
Crown Bus data signals to and from stage  
monitor amplifiers along unused wire pairs in a  
mic snake. If this is done, do not use the  
ground wire which is normally connected to pin  
1 on an XLR connector or data noise will be  
Multiloop Advantages  
• A break in communication in one loop does not  
affect other loops.  
• Over 250 IQ components of the same model  
can be use in a system.  
• The same IQ address can be used more than  
once (once per loop per model).  
Mixer/Multiplexer 1  
Mixer/Multiplexer 2  
Single Loop Advantages  
• The IQ System can send and retrieve data  
faster in a single loop.  
1
2 3 4  
1 2 3 4  
Cable connectors are numbered as they appear from the front.  
÷Real timeš level display of a greater number  
of units is possible.  
PIN  
PIN  
Input (–)  
Input (+)  
Output (–)  
Output (+)  
GND  
1
2
3
4
1
2
3
4
Input (–)  
Input (+)  
Output (–)  
Output (+)  
GND  
3.2.2 Crown Bus Wiring  
The Crown Bus is implemented in IQ mixer/multi-  
plexers as a 20 milliamp current loop operating at  
38.4 K baud so that it can function with inexpensive  
twisted-pair wiring. If fiber optic wiring is required  
contact Crown Tech. Support or Amcron Tech. Ser-  
Fig. 3.6 Crown Bus Wiring for Removable Barrier Blocks  
Page 13  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
Crown Bus 5-pin DIN Input  
Crown Bus Barrier Block  
Crown Bus 4-pin DIN Output  
Crown Bus Barrier Block  
1
2
5
4
4
1
1
2
3
4
1
2
3
4
3
The Crown Bus connector  
shown here is the standard  
connector found on the back  
panel of most mixers and SLM.  
3
2
The female Crown Bus connector shown  
here can be found on the back panel  
of IQ-INT IIs and most IQ-P.I.P.s.  
The Crown Bus connector  
shown here is the standard  
connector found on the back  
panel of most mixers and SLM.  
The female Crown Bus connector shown  
here can be found on the back panel  
of IQ-INT IIs and most IQ-P.I.P.s.  
PIN  
Output (+) 1  
Output (–) 2  
Input (+) 3  
PIN  
PIN  
PIN  
5
4
3
(Not Used)  
(Not Used)  
GND  
1 Output (+)  
4
3
2
1
(Not Used)  
(Not Used)  
Output (+)  
Output (-)  
2 Output (–)  
3 Input (+)  
4
2
1
Input (+)  
Input (–)  
Input (–)  
GND  
4
Input (–)  
GND  
Optional Shield  
Fig. 3.8 Crown Bus Wiring for 4-pin DIN Output  
Fig. 3.7 Crown Bus Wiring for 5-pin DIN Input  
TO HOST COMPUTER  
IN  
8
OUT  
7
OUT  
IN  
6
OUT  
IN  
5
OUT  
IN  
4
OUT  
IN  
COMPUTER  
OUT  
IN  
3
IN  
2
OUT  
1
OUT  
IN  
POWER  
IQ INTERFACE  
Important: Provide ad-  
equate cooling if the unit  
will be used in a hot envi-  
ronment. Allow one  
empty rack space (1.75  
inches or 4.4 centime-  
ters) between each unit if  
more than four units will  
be stacked in a cabinet.  
Each empty rack space  
should be sealed with a  
blank rack panel to facili-  
tate proper air flow inside  
the cabinet.  
A
D
D
25  
AUDIO  
-5  
A
D
D
25  
AUDIO  
-5  
0
5
5
5
F
O
R
MIC  
A
D
D
25  
AUDIO  
-5  
0
5
5
5
F
O
R
MIC  
A
D
D
25  
AUDIO  
-5  
0
IN  
5
F
O
R
MIC  
A
D
D
25  
MIC  
10  
AUDIO  
-5  
0
IN  
5
5
5
F
O
R
MIC  
A
D
D
25  
10  
AUDIO 0  
0
IN  
STAC  
K
5
5
5
F
O
R
10  
AUDIO  
OUT  
IN  
-10  
STAC  
K
5
5
5
F
O
R
MIC  
10  
15  
21  
AUDIO  
OUT  
IN  
-10  
C
ROWN  
BUS  
10  
15  
21  
1
IN  
IN  
-5  
-10  
IN  
10  
15  
21  
2
-12  
-10  
15  
21  
3
-12  
-10  
120 VAC  
60 Hz  
AUX  
TRL  
SERIAL DATA LO  
O
P
15  
21  
4
-12  
-10  
15  
21  
5
-12  
6
-12  
C
1 MAIN  
-12  
BUS  
2
L
M
P
BUS  
IN  
O
UT  
MAIN  
M
L
P
M
L
P
+
L
+
M
P
M
L
P
M
L
P
+
+
+
+
+
+
+
+
+
+
RS232  
/
/
/
RS422  
RS422  
RS422  
A
D
D
R
25  
MIC  
AUDIO  
A
D
D
R
25  
MIC  
AUDIO  
0
A
D
D
R
25  
MIC  
F
O
AUDIO  
0
A
D
D
R
25  
MIC  
F
O
AUDIO  
0
IN  
-5  
5
F
O
A
D
D
R
25  
MIC  
10  
AUDIO  
0
IN  
-5  
A
D
D
R
25  
MIC  
F
O
10  
AUDIO 0  
0
IN  
-5  
STAC  
K
F
O
10  
AUDIO  
OUT  
IN  
-5  
-10  
STAC  
K
F
O
10  
15  
21  
AUDIO  
OUT  
IN  
-5  
-10  
CROWN  
BUS  
10  
15  
21  
1
IN  
IN  
-5  
-10  
IN  
10  
15  
21  
2
-12  
-10  
15  
21  
3
-12  
-10  
120 VAC  
60 Hz  
AUX  
TRL  
SERIAL DATA LO  
OP  
15  
21  
4
-12  
-10  
15  
21  
5
-12  
6
-12  
C
1 MAIN  
-12  
BUS  
2
L
M
P
BUS  
IN  
MAIN  
M
L
P
O
UT  
M
L
P
+
M
L
P
+
M
L
P
M
L
P
+
+
+
+
+
+
+
+
+
+
RS232  
A
D
D
R
25  
MIC  
AUDIO  
A
D
D
R
25  
MIC  
AUDIO  
0
A
D
D
R
25  
MIC  
F
O
AUDIO  
0
A
D
D
R
25  
MIC  
F
O
AUDIO  
0
IN  
-5  
5
F
O
A
D
D
R
25  
MIC  
10  
AUDIO  
0
IN  
-5  
A
D
D
R
25  
MIC  
F
O
10  
AUDIO 0  
0
IN  
-5  
STAC  
K
F
O
10  
AUDIO  
OUT  
IN  
-5  
-10  
STAC  
K
F
O
10  
15  
21  
AUDIO  
OUT  
IN  
-5  
-10  
CROWN  
BUS  
10  
15  
21  
1
IN  
IN  
-5  
-10  
IN  
10  
15  
21  
2
-12  
-10  
15  
21  
3
-12  
-10  
120 VAC  
60 Hz  
AUX  
TRL  
SERIAL DATA LO  
OP  
15  
21  
4
-12  
-10  
15  
21  
5
-12  
6
-12  
C
1 MAIN  
-12  
BUS  
2
L
M
P
BUS  
IN  
MAIN  
M
L
P
O
UT  
M
L
P
+
M
L
P
+
M
L
P
M
L
P
+
+
+
+
+
+
+
+
+
+
RS232  
BALANCED INPUTS  
CH–1  
CH–2  
DSPI  
AUX  
AUX  
AUX  
SERIAL IN  
SERIAL OUT  
SERIAL OUT  
SERIAL OUT  
INVERT  
(–)  
3
NON-  
INVERT  
(+)  
1
2
GND  
BALANCED INPUTS  
CH–1  
CH–2  
DSPI  
SERIAL IN  
INVERT  
(–)  
3
NON-  
INVERT  
(+)  
1
2
GND  
BALANCED INPUTS  
CH–1  
CH–2  
DSPI  
SERIAL IN  
INVERT  
(–)  
3
NON-  
INVERT  
(+)  
1
2
GND  
Figure 3.9 Crown Bus Wiring ÷Loopsš from Output to Input of Each IQ Component  
Page 14  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
added to the audio lines. Use only the signal  
lines which normally connect to pins 2 and 3 of  
the XLRs. Note: Because typical mic cables  
have high capacitance, the maximum possible  
Crown Bus loop distance will be less.  
3.3 Connecting the Audio Ins & Outs (Step 3)  
IQ mixer/multiplexers have 6 mic/line inputs and  
2 stack inputs. (Input 6 of the AMB-5 is dedicated  
for ambient sensing and is discussed in Section  
3.3.2.) For output, there are two audio channels that  
feed two main and two auxiliary bus outputs.  
Outside RF interference is seldom a problem for a  
Crown Bus loop…especially if shielded twisted-pair  
wire is used. However, there are extreme situations  
when fiber optic wiring is recommended. For ex-  
ample, locating a Crown Bus loop next to an AM  
radio transmission line may require fiber optic ca-  
bling. An extremely long Crown Bus loop distance  
(greater than 10 miles) may also require fiber optic  
cabling.  
3.3.1 Mic/Line Inputs  
Three-terminal removable barrier block connectors  
are provided for the audio inputs. Each input has an  
input selector switch. Slide it to the left (M) for  
microphone signal levels up to +7 dBu (0 dBu =  
Shield connected  
at both ends  
Microphone  
Some examples of twisted pair wiring follow. Figure  
3.6 shows point-to-point wiring for the Crown Bus  
using two female removable barrier block connec-  
tors:  
INPUT  
+
+
+
Some IQ components use separate 5-pin and 4-pin  
DIN connectors for Crown Bus input and output  
wiring. Connecting to them is shown below:  
Note: If more than one  
input is driven from the same  
source equipment, connect only  
one shield at the source  
Floating  
source  
equipment chassis.  
The IQ components in each Crown Bus loop are  
wired in series. The output of one IQ component  
÷loopsš to the input of the next and so on. This is  
shown in Figure 3.9.  
Output  
+
INPUT  
2-wire line cord  
(or battery power)  
AUDIO  
ADD 25  
Grounded  
source  
0
5
FOR MIC  
Shield not connected  
at this end  
IN  
-5  
10  
-10  
15  
21  
1
-12  
Output  
+
M L P  
INPUT  
3-wire grounded line cord  
(or other ground connection)  
+
Fig. 3.12 Balanced Audio Input Wiring  
Fig. 3.10 An Audio Input Section  
Pro audio  
equipment  
Semi-pro or  
consumer  
equipment  
Dynamic  
Condenser  
Hot  
Dynamic  
mic, music  
Hot  
Close-miked Close-miked  
mic, speech mic, speech condenser  
mic, speech  
condensor dynamic mic, dynamic mic,  
mic, music bass/drums  
kick drum,  
guitar amp  
dBm/dBV  
dBu  
+4 dBm  
+4 dBu  
–4 (L)  
–10 dBV  
–8 dBu  
+8 (L)  
–75 dBV  
–73 dBu  
+21 (M)  
–65 dBV  
–63 dBu  
+11 (P)  
–45 dBV  
–43 dBu  
+18 (P)  
–55 dBV  
–53 dBu  
+21 (M)  
–25 dBV  
–23 dBu  
–2 (P)  
–15 dBV  
–13 dBu  
–12 (M)  
–5 dBV  
–3 dBu  
–12 (M)  
or  
+3 (L)  
Suggested  
Setting  
0 dBm = 0.775 VRMS with a 600 ohm load, 0 dBV = 1 VRMS, 0 dBu = 0.775 VRMS  
Fig. 3.11 Suggested Audio Input Gain Control Settings  
Page 15  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
0.775 volts). Select the center position (L) for line  
level signals up to +32 dBu. Slide it to the right (P)  
to provide 44 VDC to mics requiring phantom  
power.  
Figures 3.12-13 show the normal wiring for bal-  
anced and unbalanced inputs. It is also possible to  
parallel the inputs of multiple units to increase the  
number of mixer outputs. For example, the inputs of  
two 6x2 MPX-6s can be paralleled to create a 6x4  
mixer. This technique is described in Section 3.3.6.  
Each input has a screwdriver-set, calibrated gain  
control to compensate for different input source  
levels. The slot on the control shaft points to the  
gain setting. The settings are labelled for line-level  
input. Add 25 dB to the scale if the inputs are  
switched for microphone level signals.  
Balanced sources should be wired as shown below  
in Figure 3.12. Notice that the shield is not con-  
nected to the chassis ground of the source if the  
source is also connected to the AC ground (that is,  
it has a grounded AC plug). This prevents unwanted  
ground loops.  
Use a screwdriver to adjust the gain pot so that the  
input signal level plus gain equals roughly 0 dBu.  
You will need to know, or estimate, the level of the  
input source. Setting the source signal level to ap-  
proximately 0 dBu will provide 20 dBu of headroom  
in the input preamp. Some recommended settings  
follow in Figure 3.11:  
Unbalanced sources should be wired as shown  
below in Figure 3.13. The examples in Figure 3.13  
are grouped according to whether twin-lead  
shielded wire or single-conductor coax (and twisted  
pair) wire is used.  
Floating  
Shield connected  
to ground terminal  
3.3.2 AMB-5 Ambient Sensing Input  
source  
Output  
+
SENSE  
ADD 25  
0
5
FOR MIC  
IN  
-5  
-10  
-12  
10  
INPUT  
2-wire line cord  
15  
21  
(or battery power)  
+
M L P  
+
Grounded  
source  
Shield not connected  
at this end  
Fig. 3.14 Sensing Input Section  
Output  
+
In addition to its automatic mixing capabilities, the  
AMB-5 also has the ability to adjust the output level  
of Channel 1 to the ambient sound level. (Remem-  
ber, Channel 2 functions only as an MPX-6.) It does  
this with its sensing input (input 6). This is an  
extremely useful feature. With an AMB-5 the paging  
level at a train station can be automatically adjusted  
so pages can be heard over the roar of an incoming  
train and yet quieted to an appropriate level during  
periods of softer ambient sound levels.  
INPUT  
3-wire grounded line cord  
(or other ground connection)  
+
Floating  
source  
Shield connected to both negative  
(–) and ground input terminals  
Output  
+
The sensing input section of the back panel is  
shown in Figure 3.14 below. It has the same fea-  
tures as the other mic/line inputs: input gain control  
and input level switch.  
INPUT  
2-wire line cord  
(or battery power)  
+
Grounded  
source  
Input ground  
terminal not used  
The obvious way to use the sensing input is to  
connect a microphone (such as a Crown PZM-6D) to  
it and locate the microphone so that it can accu-  
rately receive the ambient sound level. Great care  
must be taken in the placement of the ambient sens-  
ing microphone so that it is not too close to the  
loudspeakers being driven by the system. If it is too  
close, the system could go into feedback oscillation.  
Output  
+
INPUT  
3-wire grounded line cord  
(or other ground connection)  
+
Fig. 3.13 Unbalanced Audio Input Wiring  
Page 16  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
system). Because the bus outputs are controlled by  
the IQ System, they can be kept off until they are  
actually used, preventing too many of them being  
on at the same time and loading down a common  
audio bus network.  
It is also possible to connect more than one ambient  
sensing microphone to the sense input. This can be  
accomplished by taking advantage of the manual  
mixing function of Channel 2. Simply connect each  
ambient sensing microphone to one of the five regu-  
lar inputs of the AMB-5 and use the IQ software to  
assign each of them to Channel 2 only. Switch the  
sense input to the line-level position (L) and connect  
the main audio output of Channel 2 to it. Use the IQ  
software to control the level of the ambient sensing  
microphones. The microphones which are located in  
more critical areas can be set to a higher level so  
they will trigger the level controller first.  
The versatile bus outputs can be used for any audio  
system, small or large, where switchable outputs  
are desired, such as switchable recording outputs.  
Both main and bus outputs are wired the same way.  
Balanced output wiring is shown below.  
Notice that the shield is not connected to the output  
ground terminal if the load is connected to AC  
ground. This prevents unwanted ground loops. Un-  
balanced output wiring is shown next.  
Be sure the microphone has adequate sensitivity for  
the spectral content of the ambient sound. For ex-  
ample, a microphone with a bandwidth designed  
solely for speech reinforcement may not have ad-  
equate low-frequency sensitivity to pick up the low-  
frequency noise of machinery in a factory.  
Floating  
Shield connected at both ends  
load  
+
Output  
OUTPUT  
2-wire line cord  
3.3.3 Audio Outputs  
(or battery power)  
+
Three-terminal removable barrier block connectors  
are provided for audio output (Figure 3.15). Both a  
main and bus output are provided for each of the  
two mixer channels. They are balanced and can  
drive 1200 ohms or more to +26 dBu or 600 ohms to  
+20 dBu. Each bus output can drive any number of  
inputs within this impedance range.  
Grounded load  
Shield not connected  
at this end  
(power amp)  
+
Output  
OUTPUT  
3-wire grounded line cord  
(or other ground connection)  
The main audio outputs are provided for connection  
with other audio equipment such as power amplifi-  
ers. They can also be stacked with the outputs of  
other mixer/multiplexers to increase the number of  
mixer inputs. For example, two 6x2 MPX-6s can be  
stacked to create a 12x2 mixer. This is described in  
Section 3.3.4.  
+
Fig. 3.16 Balanced Audio Output Connections  
Twin-lead shielded cable  
Shield connected to ground  
terminal of load only  
Load  
The bus outputs are turned on or off by relays and  
function like the aux send outputs on a conventional  
mixing console. They are switched on or off by the  
IQ System. This special design allows many bus  
outputs to be connected to a common audio bus in a  
multiple-zone network (like a large airport paging  
+
Output  
OUTPUT  
+
+
Single-conductor coax  
or twisted pair  
STACK  
IN  
AUDIO  
OUT  
Load  
1
+
MAIN  
BUS  
Output  
OUTPUT  
+
– +  
Fig. 3.15 Audio Output Section  
Fig. 3.17 Unbalanced Audio Output Connections  
Page 17  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
3.3.4 Stack Inputs  
3.3.5 Paralleling Inputs  
The stack in jacks (Figure 3.15) enable the audio  
inputs to be increased by stacking 2, 3, or more  
mixer/multiplexers to create a 12x2, 18x2 or wider  
mixer. Use 2-conductor shielded cable to route the  
signal from the main output of one unit to the stack  
input (RCA phono jack) of the second unit. This is  
shown in Figure 3.19. The stack input routes the  
signal directly to the output of the second unit. Use  
the outputs of the last unit in the stack for connec-  
tion to amplifiers or other external audio equipment.  
When using more than one unit, the inputs may be  
wired in parallel to increase the number of outputs  
that a source can drive. This is shown in Figures  
3.20-21. For example, the audio signal in Figure 21  
which feeds Input 1 is available to the outputs of  
both units, creating a 6x4 mixer.  
Important: If the source is a microphone which re-  
quires phantom power (P) select it only at the first  
input. Switch all other parallel inputs to mic (M).  
Note: When mixer inputs are paralleled, the total  
input impedance will drop by ¦N where N is the  
number of inputs to be connected. Depending on  
the signal source, this may place a limit on the  
number of possible outputs.  
Note: The level of each signal on the stacked output  
bus is controlled by the unit having the signal as an  
input.  
1
Stacking mixer/multiplexers can create an almost  
unlimited number of inputs. However, there will still  
only be two main and two auxiliary bus outputs for  
connection to other equipment. See Section 3.3.5 to  
find out how to increase the number of outputs.  
6 INPUTS  
SMX-6  
The correct way to wire stacked units is shown  
below:  
PARALLELED  
INPUTS  
MPX-6  
12 INPUTS  
8
OUTPUTS  
MAIN  
OUT  
STACK  
IN  
MPX-6  
2
SMX-6  
SMX-6  
OUTPUTS  
MPX-6  
STACKED  
OUTPUTS  
Fig. 3.20 A 6x8 Mixer Using 4 Mixer/Multiplexers  
Fig. 3.18 A 12x2 Mixer Using 2 Mixer/Multiplexers  
To signal  
source  
STACK  
IN  
STACK  
IN  
AUDIO  
OUT  
AUDIO  
OUT  
First  
Unit  
2
1
MAIN  
BUS  
MAIN  
BUS  
AUDIO  
AUDIO  
ADD 25  
ADD 25  
First  
Unit  
0
0
5
5
FOR MIC  
FOR MIC  
IN  
IN  
-5  
-5  
10  
10  
+
+
+
+
-10  
-10  
15  
21  
15  
21  
2
1
-12  
-12  
+
3-pin output connector  
M L P  
M L P  
+
(–) No connection  
2-conductor shielded cable  
Do NOT tie ground terminals  
of parallel inputs together  
Connect ground ( ) from  
output to phone plug shield  
2-conductor shielded cable  
Connect shield to ground  
terminal of input ONLY  
Phone (RCA) plug  
STACK  
IN  
STACK  
IN  
AUDIO  
OUT  
AUDIO  
OUT  
Second  
Unit  
AUDIO  
ADD 25  
AUDIO  
ADD 25  
Second  
0
0
5
5
FOR MIC  
FOR MIC  
IN  
IN  
-5  
-5  
Unit  
10  
10  
-10  
-10  
2
1
15  
21  
15  
21  
2
1
MAIN  
BUS  
MAIN  
BUS  
-12  
-12  
No  
phantom  
power  
M L P  
M L P  
+
+
+
+
+
+
Fig. 3.19 Stacking the Outputs of Multiple Units  
Page 18  
Fig. 3.21 Paralleling the Inputs of Multiple Units  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
By using several units and a combination of parallel  
inputs and stacked outputs, larger mixing configu-  
rations (12x8, 24x4, etc.) can be created as shown  
below:  
maximum of 16 mA. This is shown below in Figure  
3.24.  
Notice in Figure 3.24 that the Aux port also has the  
capability to receive a signal across pins 2 (+) and  
1 (ground). It is a high impedance input and in-  
cludes a pull-down resistor.  
12 INPUTS  
MAIN  
OUT  
STACK  
IN  
+24 V  
SMX-6  
MPX-6  
MPX-6  
SMX-6  
MPX-6  
MPX-6  
PARALLELED  
INPUTS  
1.5 K ohm  
10 V Zener  
8
OUTPUTS  
AUX  
CONNECTOR  
MPX-6  
MPX-6  
3
OUT  
1
GND  
+5 V  
2
IN  
STACKED  
OUTPUTS  
6x8  
6x8  
20 K  
Fig. 3.22 A 12x8 Mixer Using 8 Mixer/Multiplexers  
(LSTTL)  
100 K  
3.4 Connecting Auxiliary Devices (Step 4)  
Auxiliary devices, external to the IQ System, can be  
turned on and off using the Aux port on the mixer/  
multiplexer. For example, auxiliary cooling for an  
amplifier equipment rack can be controlled using  
the Aux port to control a solid state relay which in  
turn controls a cooling fan. This is shown below in  
Figure 3.23:  
Fig. 3.24 Internal Auxiliary Circuit  
AUX  
CONNECTOR  
GND  
1
10 V  
3
SOLID  
STATE  
RELAY  
INPUT  
2
+
(C 7308-7)  
110 VAC  
AUXILIARY  
EQUIPMENT  
Fig. 3.23 Sample Auxiliary System Wiring  
The solid state relay shown (Crown part number C  
7308-7) can be ordered from Crown.  
The Aux port uses a male 3-pin mini XLR connector  
which is located above the DB25 connector (Figure  
2.1). Use a Switchcraft® TA3F cable connector or  
equivalent to make the connection.  
When the Aux port is turned on by the IQ System it  
provides 10 VDC across pins 3 (+) and 1 (ground).  
An internal 1500 ohm resistor limits the current to a  
Page 19  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
time. This means that SMX-6s will need to be con-  
nected to a Crown Bus via an external IQ interface  
for setup of a CLN.  
4 Options  
There are two optional uses for mixer serial ports.  
The first is direct RS232/RS422 communication with  
the unit where the unit is its own interface and  
interface for any connected components. The sec-  
ond, called Crown Local Net, applies only to SMX-6  
mixers.  
4.2.1 Wiring the Crown Local Net  
A Crown Local Net is a serial loop (Figure 4.1). With  
two exceptions, a Crown Local Net loop is wired the  
same as standard RS422 wiring. Exception 1: The  
Crown Local Net does not use handshaking, there-  
fore pins 4 and 5 (RTS/CTS) are not used. Exception  
2: When more than 2 components will be communi-  
4.1 A 1-Loop IQ Interface  
The serial port allows any of the mixer models to  
serve a an IQ interface between a host computer  
and a single Crown Bus loop.  
Note: While 250 IQ components of each type can be  
controlled on a single Crown Bus loop, it is recom-  
mended that no more than 20 units be connected to  
an AMB-5 or SMX-6. This is because of the tremen-  
dous timing demands on their microprocessors.  
More than 20 IQ components may cause timing  
problems. The MPX-6 has no such limitations.  
CLN Interface (RS422)  
CLN Interface (RS422)  
CLN Interface (RS422)  
Note: While the mixers may be used as a system  
interface, they do not support IQ2 protocol as an  
interface. The only components that an IQ mixer  
may used as interface for are other mixers, MRX  
relay modules, and IQ-PIP-AP modules.  
Fig. 4.1 A Crown Local Net RS422 Serial Loop  
cating on a Crown Local Net, two cables must be  
connected to each DB25 connector…one for incom-  
ing data and one for outgoing data. With two units  
on a Crown Local Net, only one cable is attached to  
the connector.  
With the built in serial port an IQ mixer can eliminate  
the need for an external IQ Interface (IQ-INT II) in a  
small system. The mixer connects directly to the  
host computer via the DB25 serial connector.  
Switches accessed through the side of the chassis  
are used to select the serial interface configuration,  
parity and baud rate. See Section 3.1 for specific  
wiring and switch instructions.  
Figure 4.2 shows the wiring for a 3-unit Crown Local  
Net. If more units are desired, simply add another  
unit and follow the same pattern for wiring. Note: Pin  
7 should not be used as a ground if the units are  
already properly grounded. The wire used for  
RS422 communication is usually unsuitable for use  
as a ground.  
4.2 Crown Local Net  
Crown Local Net is available only for an SMX-6. It  
enables multiple SMX-6s to be interconnected via a  
Crown Local Net (CLN). This is a pseudo-RS422  
communication loop designed for local communica-  
tion between IQ components apart from the Crown  
Bus. SMX-6s can use this option to communicate  
the total number of open mics in the system as well  
as their individual ducking priorities. In this way,  
one SMX-6 will know how many mics are being used  
by other SMX-6s and can take appropriate action to  
prevent feedback or implement priority switching  
(ducking) of mics.  
Important: The Crown Local Net must make a com-  
plete loop. If the last unit in a group is not connected  
to the first unit, the system will not function.  
Important: The Crown Local Net depends on proper  
IQ address assignments, even if the system will not  
be installed with a Crown Bus loop. Each unit in a  
Crown Local Net must have a different IQ address.  
See Section 3.2 for details.  
As more diverse IQ communications are needed,  
the Crown Local Net will be available to move infor-  
mation directly between IQ components without af-  
fecting the performance of a host computer.  
Note: Because RS232/422 and CLN use the same  
DB25 connector, they cannot be used at the same  
Page 20  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
SMX-6 #1  
SMX-6 #2  
SMX-6 #3  
Pin  
Pin  
Pin  
2
2
2
3
3
7
3
7
(Optional)  
(Optional)  
7
9
9
9
10  
10  
10  
(Optional)  
Pin 2 Serial In (–)  
Pin 3 Serial Out (–)  
Pin 7 GND (Optional)  
Pin 9 Serial Out (+)  
Pin 10 Serial In (+)  
(All other pins are not used.)  
Fig. 4.2 Crown Local Net Wiring  
Page 21  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
5.2.1 Service at a Crown Service Center  
5 Service  
This method usually saves you the most time and  
effort. Simply present your bill of sale along with the  
defective unit to an authorized Crown Service Cen-  
ter. They will handle the necessary paperwork and  
repair. Remember to transport your unit in the origi-  
nal factory pack.  
Your unit has very sophisticated circuitry which  
should only be serviced by a fully trained techni-  
cian. This is one reason why each unit bears the  
following label:  
CAUTION: TO PREVENT ELECTRIC SHOCK DO  
NOT OPEN. NO USER SERVICEABLE PARTS IN-  
SIDE. REFER SERVICING TO A QUALIFIED  
TECHNICIAN.  
5.1 International Service  
5.2.2 Crown Factory Service  
Service may be obtained from an authorized Im-  
porter Service Center. (Contact your local Importer  
or our office for a list of authorized service centers.)  
Simply present your bill of sale as proof of purchase  
along with the defective unit to an authorized Ser-  
vice Center to obtain service. They will handle the  
necessary paperwork and repair.  
To obtain factory service, fill out the Service Infor-  
mation Card in the back of this manual and send it  
along with proof of purchase and the defective unit  
to the Crown factory. Enclose a letter explaining the  
nature of the problem and what service you would  
like. Include your return shipping address and tele-  
phone number.  
Remember to transport your unit in the original fac-  
tory pack. Amcron will pay the surface shipping  
costs both ways for warranty service to the autho-  
rized service center nearest you after receiving  
copies of all shipping receipts. You must bear the  
expense of all taxes, duties, and customs fees  
when transporting the unit.  
The unit must be shipped in the original factory  
pack. If you no longer have the original shipping  
container, contact us and we will promptly send you  
a replacement.  
Crown will pay ground shipping costs both ways in  
the United States for warranty service after receiv-  
ing copies of all shipping receipts. Shipments  
should be sent UPS ground. (If the unit is under  
warranty, you may send it C.O.D. for the cost of the  
shipping.) The factory will return your serviced unit  
via UPS ground. Please contact our Shipping De-  
partment (219-294-8246) if other arrangements are  
necessary.  
5.2 Crown Service  
Service may be obtained in one of two ways: from  
an authorized Crown Service Center or from the  
factory. You may choose either. It is important that  
you have your copy of the bill of sale as your proof  
of purchase.  
Crown Technical Support Group  
POB 1000  
Elkhart, Indiana 46515-1000 U.S.A.  
Phone: 1-800-342-6939  
or: 1-219-294-8200  
Fax: 1-219-294-8301  
Page 22  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
6 Technical Information  
1
ing upon the model). Levels can be set in ¦2 dB  
The IQ System was developed to provide a way to  
both monitor and control complete sound systems  
during operation. The system began with amplifier  
control using plug-in IQ-P.I.P. modules in each am-  
plifier and an IQ-INT to connect the system to a host  
computer. The next major advance was the MPX-6,  
the first intelligent mixer/multiplexer able to mix and  
route audio inputs under computer control. Now, the  
SMX-6 and AMB-5 sensing mixers offer advanced  
signal processing and have the capability of mixing  
audio signals automatically.  
increments from 25 dB gain to 100 dB attenuation  
(which is considered off).  
6.1.3 Output Section  
The two mix buses are sent to the corresponding  
main output and auxiliary bus output stages. All  
output stages are active, balanced and can drive  
1200 ohms to +26 dBu or 600 ohms to +20 dBu. The  
auxiliary bus output stages have internal relay con-  
tacts which can connect or disconnect the signal to  
the auxiliary bus output connector. These contacts  
are controlled by the host computer and thus allow  
programmed signal routing. Optional output isola-  
tion transformers can also be added by the factory.  
6.1 Audio  
6.1.1 Input Section  
Each audio input signal first passes through a bal-  
anced filter designed to eliminate RF interference.  
The RF filters are a balanced network of chokes,  
ferrite beads and capacitors that attenuate both  
common-mode and differential-mode signals above  
500 kHz. Optional input isolation transformers can  
also be added by the factory.  
6.1.4 Level Sense Circuits (AMB-5 and SMX-6 only)  
The output of each input preamp and each mix amp  
is monitored by a corresponding level detector.  
Each level detector tracks the peak level of the  
signal and releases with a time constant of about 85  
ms. The eight levels are sent to a multiplexer and  
the A/D converter.  
The signal then enters the input switching circuit.  
This circuit can insert a 25-dB pad for line level  
signals or apply phantom power to the input termi-  
nals (44 volts through two 6810-ohm resistors). The  
signal is filtered again to eliminate lower-frequency  
RF energy such as interference from the AM broad-  
cast band. The signal then goes to the preamp  
stage.  
6.2 Control and Interface Section  
The host computer communicates with the unit mi-  
croprocessor either through an outboard IQ inter-  
face (like an IQ-INT) via the Crown Bus, or directly  
through the RS232/RS422 port. Each unit acts only  
on commands with an address matching its own.  
Each of the six input preamplifier stages is a bal-  
anced circuit providing from 13 to 46 dB of voltage  
gain. The preamp consists of a pair of low-noise  
transistors followed by a high performance op-amp.  
The transistors, in effect, convert the input voltage  
to a current while maintaining reasonably high input  
impedance. Their transconductance (output current  
divided by input voltage) depends on the setting of  
the gain control. The op-amp then converts the  
current back to a voltage to drive subsequent cir-  
cuits.  
6.2.1 Crown Bus Interface  
The serial loop (Crown Bus) connections on the unit  
are made with an opto-isolated 4-pin removable  
barrier block connector and a ground stud for the  
optional connection of shielded wire. To prevent  
ground loops, only the input cable’s shield should  
be connected. These connections conform to IQ  
System standards, which allow the host computer  
to control numerous IQ components with the same  
computer program.  
6.1.2 VCA Sections  
6.2.2 RS232/RS422 Interface  
Each preamplifier output drives two VCAs which  
then drive the two current-summing mix buses. The  
stack inputs also feed into the mix buses. The  
VCA’s derive their control voltages from a multi-  
plexer circuit driven from the microprocessor. The  
microprocessor uses onboard algos or commands  
from a host computer to control the VCAs (depend-  
Depending on selected options, the DB25 connector  
can be used to communicate directly with the host  
computer for setup or control of a Crown Bus loop,  
or (SMX-6 only) for connection to an RS422 Crown  
Local Net. A switch selects either RS232 or RS422  
operation.  
Page 23  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
6.2.3 D/A Converter  
6.2.5 Auxiliary Port  
To set channel gain levels, a digital-to-analog con-  
verter continuously converts all gain settings to  
control voltages. An analog demultiplexer sends the  
appropriate control voltages to each of the twelve  
VCAs.  
Auxiliary devices such as supplemental cooling  
fans can be remotely controlled via the AUX output  
on the unit. When the auxiliary control feature is  
turned on by the host computer, 10 VDC is supplied  
across pin 3 and pin 1 (ground) of the male 3-pin  
AUX connector. This port can control solid state  
relays, and since it has a current-limit resistor (16  
mA max.), it can directly drive an LED or opto-  
coupler.  
6.2.4 Log Amp and A/D Converter  
The A/D converter scans through an eight-channel  
multiplexer to read the input and output signal lev-  
els. When a channel is selected, the signal is sent  
through a logarithmic amplifier for increased dy-  
namic range. This analog voltage is then converted  
to a binary number that the microprocessor can  
read. The processor can then mathematically in-  
crease detector time constants, perform averaging  
or other response functions.  
The AUX input function is used by applying a 5-30  
VDC signal to pin 2 (with pin 1 as ground). A high or  
low signal here will be communicated to the host  
computer. A logic low can be less than 0 volts  
(negative); the signal is internally clamped for cir-  
cuit protection.  
Page 24  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
SUMMING SUMMING  
MIX BUS 1 MIX BUS 2  
M/L/P SWITCH  
P = +25dB/+44VDC  
M = +25dB  
L = 0 dB  
MAIN 1  
VCA  
1-1  
INPUT 1  
OUTPUT  
*INPUT  
SENSOR  
ACTIVE  
BALANCE  
OUTPUT  
AMP  
FROM  
CPU  
PRE-AMP  
TO  
CPU  
BALANCED  
BUCHANAN  
CONNECTOR  
BALANCED  
BUCHANAN  
CONNECTOR  
VCA  
1-2  
GAIN POT  
(-12 to +21dB)  
FROM  
CPU  
BUS 1  
RELAY  
BALANCED  
BUCHANAN  
CONNECTOR  
FROM  
CPU  
M/L/P SWITCH  
P = +25dB/+44VDC  
M = +25dB  
L = 0 dB  
ACTIVE  
VCA  
2-1  
BALANCE  
OUTPUT  
AMP  
INPUT 2  
*INPUT  
SENSOR  
FROM  
CPU  
BUS 1  
PRE-AMP  
OUTPUT  
TO  
CPU  
BALANCED  
BUCHANAN  
CONNECTOR  
VCA  
2-2  
MAIN 2  
OUTPUT  
GAIN POT  
(-12 to +21dB)  
FROM  
CPU  
M/L/P SWITCH  
ACTIVE  
BALANCE  
OUTPUT  
AMP  
P = +25dB/+44VDC  
M = +25dB  
L = 0 dB  
VCA  
3-1  
INPUT 3  
BALANCED  
BUCHANAN  
CONNECTOR  
*INPUT  
SENSOR  
FROM  
CPU  
PRE-AMP  
BUS 1  
FROM  
CPU  
BALANCED  
BUCHANAN  
CONNECTOR  
RELAY  
TO  
CPU  
BALANCED  
BUCHANAN  
CONNECTOR  
VCA  
3-2  
ACTIVE  
GAIN POT  
(-12 to +21dB)  
BALANCE  
OUTPUT  
AMP  
FROM  
CPU  
M/L/P SWITCH  
BUS 2  
OUTPUT  
P = +25dB/+44VDC  
M = +25dB  
L = 0 dB  
VCA  
4-1  
INPUT 4  
*FROM  
OUTPUT  
SENSORS  
*INPUT  
SENSOR  
FROM  
CPU  
TO TO BUS  
VCAs RELAYS  
PRE-AMP  
*FROM  
INPUT  
SENSORS  
TO  
CPU  
BALANCED  
BUCHANAN  
CONNECTOR  
VCA  
4-2  
GAIN POT  
(-12 to +21dB)  
RS232/RS422 or  
Crown Local Net  
FROM  
CPU  
M/L/P SWITCH  
P = +25dB/+44VDC  
M = +25dB  
L = 0 dB  
VCA  
5-1  
CPU  
(MICRO-  
PROCESSOR)  
INPUT 5  
DB25  
*INPUT  
SENSOR  
FROM  
CPU  
PRE-AMP  
TO  
CPU  
CROWN BUS  
BALANCED  
BUCHANAN  
CONNECTOR  
VCA  
5-2  
GAIN POT  
(-12 to +21dB)  
4-PIN  
BUCHANAN  
FROM  
CPU  
M/L/P SWITCH  
COMMUNICATION  
STANDARD  
P = +25dB/+44VDC  
M = +25dB  
L = 0 dB  
VCA  
6-1  
**INPUT 6  
*INPUT  
SENSOR  
BAUD RATE  
& PARITY  
FROM  
CPU  
PRE-AMP  
1
2
3
3
4
4
5
5
6
6
TO  
CPU  
BALANCED  
BUCHANAN  
CONNECTOR  
VCA  
6-2  
IQ ADDRESS  
1
2
7
8
GAIN POT  
(-12 to +21dB)  
FROM  
CPU  
3-PIN  
MINI XLR  
STACK INPUT 1  
AUX PORT  
DSPI  
STACK INPUT 2  
*OUTPUT  
SENSOR  
*OUTPUT  
SENSOR  
MEMORY  
BATTERY  
BACKUP  
*Sensors not present on MPX-6  
**Ambient sensing input on AMB-5  
POWER  
SUPPLY  
TO  
CPU  
TO  
CPU  
ENABLE  
Fig. 6.1 General IQ Mixer Block Diagram  
Page 25  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
Weight: 8 lbs 13 oz (4 kg).  
7 Specifications  
Finish: Black splatter-coat chassis and front panel.  
7.1 General  
Construction: 16-ga. steel chassis, 18-ga. steel  
cover, 0.125-inch (3.2 mm) aluminum front panel.  
Protection: Audio outputs can be shorted indefi-  
nitely without causing damage. If communication is  
lost, the unit will continue functioning as pro-  
grammed. If power is interrupted, the unit will func-  
tion as programmed before the AC failure after the  
power is restored.  
7.2 Audio  
Input Type: Active differential, transformers op-  
tional.  
Input Impedance: Microphone: 4 kohms nominal.  
Balanced Line: 20 kohms. Unbalanced Line: 13  
kohms.  
Controls: DIP switches and a slide switch are ac-  
cessible from the right side of the unit for setting the  
communication format, baud rate, parity and Crown  
Bus address. Each audio input has a 3-position se-  
lector (mic/line/phantom-powered mic) and a cali-  
brated gain control.  
Maximum Input Level: Microphone: +7 dBu. Line:  
+32 dBu (0 dBu = .775 Vrms).  
Phantom Power: 44 VDC through two 6810-ohm re-  
Display: A red Enable LED lights when power is ap-  
plied to the unit. A yellow DSPI (Data Signal Pres-  
ence Indicator) LED lights when the appropriate  
command is sent from the system computer or  
whenever the unit is receiving data.  
sistors, switchable at each mic input.  
Common Mode Rejection Ratio: (Typical) 60 Hz-  
1 kHz: 55 dB. 20 Hz-20 kHz: 45 dB.  
Output Type: Active balanced, optional transform-  
ers. For unbalanced operation, leave the "–" terminal  
open.  
Connectors  
Audio inputs and outputs: 3-pin male removable  
barrier block connectors. Buchanan® type  
SSB4L03S cable connector or equivalent supplied.  
Output Impedance: 50 ohms per side, 100 ohms bal-  
anced.  
Crown Bus serial communication: 4-pin male re-  
movable barrier block connector and chassis  
ground stud. Buchanan type SSB4L04S cable con-  
nector or equivalent supplied.  
Maximum Output Level: +26 dBu balanced.  
Maximum Gain: Mic input: 77 dB. Line input: 52 dB.  
Frequency Response: +0/–1 dB from 20 Hz to 20  
kHz.  
Aux control: 3-pin Switchcraft TB3M. Mates with  
Switchcraft TA3F cable connector or equivalent.  
Harmonic Distortion: Less than 0.05% at +4 dBm  
output. Less than 0.15% at +20 dBm output, 20 Hz  
to 20 kHz measured at mic input with 40 dB gain.  
RS232/422/Crown Local Net: Female DB25.  
Stacking inputs: Phono (RCA) jacks.  
Noise: Output noise, all inputs off: –80 dBu (106 dB  
below rated output). Output noise, one line input at  
0 dB gain: –80 dBu. Equivalent input noise, mic in-  
put, 46 dB gain, 150-ohm source: –125 dBu. (Specs  
are typical, unweighted, for 20 Hz to 20 kHz.)  
Auxiliary Control: Output ON applies 10 VDC to pin  
3. Input ON is caused by applying 5 to 30 VDC at  
pin 2. Pin 1 is ground reference.  
Power Requirements: 120 VAC, 60 Hz, 20 W.  
Crosstalk: Adjacent inputs/outputs at 1 kHz: better  
than –80 dB. Adjacent inputs/outputs from 20 Hz to  
20 kHz: better than –65 dB.  
Dimensions: 19 inches (48.3 cm) wide for standard  
rack mounting, 1.75 inches (4.4 cm) high, 9.8  
inches (24.9 cm) deep behind mounting surface,  
0.15 inches (3.8 mm) deep in front of mounting sur-  
face.  
Page 26  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
Remember: No two IQ components of the same  
type which are connected to the same Crown Bus  
can have the same address.  
Appendix A  
This Appendix contains look-up tables for every  
valid IQ address. The valid address are 1 to 250. Do  
not use an address number higher than 250!  
Addresses above 250 are reserved for special  
system use.  
To use the IQ address tables, simply find the  
address you want and set the IQ address switch of  
the IQ mixer/multiplexer card as shown. See  
Section 3.2.1 also.  
IQ Address Switch  
IQ Address Switch  
IQ Address Switch  
IQ  
Address  
IQ  
Address  
IQ  
Address  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
0
OFF OFF OFF OFF OFF OFF OFF OFF  
ON OFF OFF OFF OFF OFF OFF OFF  
OFF ON OFF OFF OFF OFF OFF OFF  
ON ON OFF OFF OFF OFF OFF OFF  
OFF OFF ON OFF OFF OFF OFF OFF  
ON OFF ON OFF OFF OFF OFF OFF  
OFF ON ON OFF OFF OFF OFF OFF  
ON ON ON OFF OFF OFF OFF OFF  
OFF OFF OFF ON OFF OFF OFF OFF  
ON OFF OFF ON OFF OFF OFF OFF  
OFF ON OFF ON OFF OFF OFF OFF  
ON ON OFF ON OFF OFF OFF OFF  
OFF OFF ON ON OFF OFF OFF OFF  
ON OFF ON ON OFF OFF OFF OFF  
OFF ON ON ON OFF OFF OFF OFF  
ON ON ON ON OFF OFF OFF OFF  
OFF OFF OFF OFF ON OFF OFF OFF  
ON OFF OFF OFF ON OFF OFF OFF  
OFF ON OFF OFF ON OFF OFF OFF  
ON ON OFF OFF ON OFF OFF OFF  
OFF OFF ON OFF ON OFF OFF OFF  
ON OFF ON OFF ON OFF OFF OFF  
OFF ON ON OFF ON OFF OFF OFF  
ON ON ON OFF ON OFF OFF OFF  
OFF OFF OFF ON ON OFF OFF OFF  
ON OFF OFF ON ON OFF OFF OFF  
OFF ON OFF ON ON OFF OFF OFF  
ON ON OFF ON ON OFF OFF OFF  
OFF OFF ON ON ON OFF OFF OFF  
ON OFF ON ON ON OFF OFF OFF  
OFF ON ON ON ON OFF OFF OFF  
ON ON ON ON ON OFF OFF OFF  
OFF OFF OFF OFF OFF ON OFF OFF  
ON OFF OFF OFF OFF ON OFF OFF  
OFF ON OFF OFF OFF ON OFF OFF  
ON ON OFF OFF OFF ON OFF OFF  
OFF OFF ON OFF OFF ON OFF OFF  
ON OFF ON OFF OFF ON OFF OFF  
OFF ON ON OFF OFF ON OFF OFF  
ON ON ON OFF OFF ON OFF OFF  
OFF OFF OFF ON OFF ON OFF OFF  
ON OFF OFF ON OFF ON OFF OFF  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
81  
82  
83  
OFF ON OFF ON OFF ON OFF OFF  
ON ON OFF ON OFF ON OFF OFF  
OFF OFF ON ON OFF ON OFF OFF  
ON OFF ON ON OFF ON OFF OFF  
OFF ON ON ON OFF ON OFF OFF  
ON ON ON ON OFF ON OFF OFF  
OFF OFF OFF OFF ON ON OFF OFF  
ON OFF OFF OFF ON ON OFF OFF  
OFF ON OFF OFF ON ON OFF OFF  
ON ON OFF OFF ON ON OFF OFF  
OFF OFF ON OFF ON ON OFF OFF  
ON OFF ON OFF ON ON OFF OFF  
OFF ON ON OFF ON ON OFF OFF  
ON ON ON OFF ON ON OFF OFF  
OFF OFF OFF ON ON ON OFF OFF  
ON OFF OFF ON ON ON OFF OFF  
OFF ON OFF ON ON ON OFF OFF  
ON ON OFF ON ON ON OFF OFF  
OFF OFF ON ON ON ON OFF OFF  
ON OFF ON ON ON ON OFF OFF  
OFF ON ON ON ON ON OFF OFF  
ON ON ON ON ON ON OFF OFF  
OFF OFF OFF OFF OFF OFF ON OFF  
ON OFF OFF OFF OFF OFF ON OFF  
OFF ON OFF OFF OFF OFF ON OFF  
ON ON OFF OFF OFF OFF ON OFF  
OFF OFF ON OFF OFF OFF ON OFF  
ON OFF ON OFF OFF OFF ON OFF  
OFF ON ON OFF OFF OFF ON OFF  
ON ON ON OFF OFF OFF ON OFF  
OFF OFF OFF ON OFF OFF ON OFF  
ON OFF OFF ON OFF OFF ON OFF  
OFF ON OFF ON OFF OFF ON OFF  
ON ON OFF ON OFF OFF ON OFF  
OFF OFF ON ON OFF OFF ON OFF  
ON OFF ON ON OFF OFF ON OFF  
OFF ON ON ON OFF OFF ON OFF  
ON ON ON ON OFF OFF ON OFF  
OFF OFF OFF OFF ON OFF ON OFF  
ON OFF OFF OFF ON OFF ON OFF  
OFF ON OFF OFF ON OFF ON OFF  
ON ON OFF OFF ON OFF ON OFF  
84  
85  
OFF OFF ON OFF ON OFF ON OFF  
ON OFF ON OFF ON OFF ON OFF  
OFF ON ON OFF ON OFF ON OFF  
ON ON ON OFF ON OFF ON OFF  
OFF OFF OFF ON ON OFF ON OFF  
ON OFF OFF ON ON OFF ON OFF  
OFF ON OFF ON ON OFF ON OFF  
ON ON OFF ON ON OFF ON OFF  
OFF OFF ON ON ON OFF ON OFF  
ON OFF ON ON ON OFF ON OFF  
OFF ON ON ON ON OFF ON OFF  
ON ON ON ON ON OFF ON OFF  
OFF OFF OFF OFF OFF ON ON OFF  
ON OFF OFF OFF OFF ON ON OFF  
OFF ON OFF OFF OFF ON ON OFF  
ON ON OFF OFF OFF ON ON OFF  
OFF OFF ON OFF OFF ON ON OFF  
ON OFF ON OFF OFF ON ON OFF  
OFF ON ON OFF OFF ON ON OFF  
ON ON ON OFF OFF ON ON OFF  
OFF OFF OFF ON OFF ON ON OFF  
ON OFF OFF ON OFF ON ON OFF  
OFF ON OFF ON OFF ON ON OFF  
ON ON OFF ON OFF ON ON OFF  
OFF OFF ON ON OFF ON ON OFF  
ON OFF ON ON OFF ON ON OFF  
OFF ON ON ON OFF ON ON OFF  
ON ON ON ON OFF ON ON OFF  
OFF OFF OFF OFF ON ON ON OFF  
ON OFF OFF OFF ON ON ON OFF  
OFF ON OFF OFF ON ON ON OFF  
ON ON OFF OFF ON ON ON OFF  
OFF OFF ON OFF ON ON ON OFF  
ON OFF ON OFF ON ON ON OFF  
OFF ON ON OFF ON ON ON OFF  
ON ON ON OFF ON ON ON OFF  
OFF OFF OFF ON ON ON ON OFF  
ON OFF OFF ON ON ON ON OFF  
OFF ON OFF ON ON ON ON OFF  
ON ON OFF ON ON ON ON OFF  
OFF OFF ON ON ON ON ON OFF  
ON OFF ON ON ON ON ON OFF  
1
2
86  
3
87  
4
88  
5
89  
6
90  
7
91  
8
92  
9
93  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
94  
95  
96  
97  
98  
99  
100  
101  
102  
103  
104  
105  
106  
107  
108  
109  
110  
111  
112  
113  
114  
115  
116  
117  
118  
119  
120  
121  
122  
123  
124  
125  
Fig. A.1 IQ Address Switch Settings from 0 to 125  
Page 27  
Rev. 0  
IQ Mixer/Multiplexer Hardware Installation  
IQ Address Switch  
IQ Address Switch  
IQ Address Switch  
IQ  
Address  
IQ  
Address  
IQ  
Address  
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
126  
127  
128  
129  
130  
131  
132  
133  
134  
135  
136  
137  
138  
139  
140  
141  
142  
143  
144  
145  
146  
147  
148  
149  
150  
151  
152  
153  
154  
155  
156  
157  
158  
159  
160  
161  
162  
163  
164  
165  
166  
167  
OFF ON ON ON ON ON ON OFF  
ON ON ON ON ON ON ON OFF  
OFF OFF OFF OFF OFF OFF OFF ON  
ON OFF OFF OFF OFF OFF OFF ON  
OFF ON OFF OFF OFF OFF OFF ON  
ON ON OFF OFF OFF OFF OFF ON  
OFF OFF ON OFF OFF OFF OFF ON  
ON OFF ON OFF OFF OFF OFF ON  
OFF ON ON OFF OFF OFF OFF ON  
ON ON ON OFF OFF OFF OFF ON  
OFF OFF OFF ON OFF OFF OFF ON  
ON OFF OFF ON OFF OFF OFF ON  
OFF ON OFF ON OFF OFF OFF ON  
ON ON OFF ON OFF OFF OFF ON  
OFF OFF ON ON OFF OFF OFF ON  
ON OFF ON ON OFF OFF OFF ON  
OFF ON ON ON OFF OFF OFF ON  
ON ON ON ON OFF OFF OFF ON  
OFF OFF OFF OFF ON OFF OFF ON  
ON OFF OFF OFF ON OFF OFF ON  
OFF ON OFF OFF ON OFF OFF ON  
ON ON OFF OFF ON OFF OFF ON  
OFF OFF ON OFF ON OFF OFF ON  
ON OFF ON OFF ON OFF OFF ON  
OFF ON ON OFF ON OFF OFF ON  
ON ON ON OFF ON OFF OFF ON  
OFF OFF OFF ON ON OFF OFF ON  
ON OFF OFF ON ON OFF OFF ON  
OFF ON OFF ON ON OFF OFF ON  
ON ON OFF ON ON OFF OFF ON  
OFF OFF ON ON ON OFF OFF ON  
ON OFF ON ON ON OFF OFF ON  
OFF ON ON ON ON OFF OFF ON  
ON ON ON ON ON OFF OFF ON  
OFF OFF OFF OFF OFF ON OFF ON  
ON OFF OFF OFF OFF ON OFF ON  
OFF ON OFF OFF OFF ON OFF ON  
ON ON OFF OFF OFF ON OFF ON  
OFF OFF ON OFF OFF ON OFF ON  
ON OFF ON OFF OFF ON OFF ON  
OFF ON ON OFF OFF ON OFF ON  
ON ON ON OFF OFF ON OFF ON  
168  
169  
170  
171  
172  
173  
174  
175  
176  
177  
178  
179  
180  
181  
182  
183  
184  
185  
186  
187  
188  
189  
190  
191  
192  
193  
194  
195  
196  
197  
198  
199  
200  
201  
202  
203  
204  
205  
206  
207  
208  
209  
OFF OFF OFF ON OFF ON OFF ON  
ON OFF OFF ON OFF ON OFF ON  
OFF ON OFF ON OFF ON OFF ON  
ON ON OFF ON OFF ON OFF ON  
OFF OFF ON ON OFF ON OFF ON  
ON OFF ON ON OFF ON OFF ON  
OFF ON ON ON OFF ON OFF ON  
ON ON ON ON OFF ON OFF ON  
OFF OFF OFF OFF ON ON OFF ON  
ON OFF OFF OFF ON ON OFF ON  
OFF ON OFF OFF ON ON OFF ON  
ON ON OFF OFF ON ON OFF ON  
OFF OFF ON OFF ON ON OFF ON  
ON OFF ON OFF ON ON OFF ON  
OFF ON ON OFF ON ON OFF ON  
ON ON ON OFF ON ON OFF ON  
OFF OFF OFF ON ON ON OFF ON  
ON OFF OFF ON ON ON OFF ON  
OFF ON OFF ON ON ON OFF ON  
ON ON OFF ON ON ON OFF ON  
OFF OFF ON ON ON ON OFF ON  
ON OFF ON ON ON ON OFF ON  
OFF ON ON ON ON ON OFF ON  
ON ON ON ON ON ON OFF ON  
OFF OFF OFF OFF OFF OFF ON ON  
ON OFF OFF OFF OFF OFF ON ON  
OFF ON OFF OFF OFF OFF ON ON  
ON ON OFF OFF OFF OFF ON ON  
OFF OFF ON OFF OFF OFF ON ON  
ON OFF ON OFF OFF OFF ON ON  
OFF ON ON OFF OFF OFF ON ON  
ON ON ON OFF OFF OFF ON ON  
OFF OFF OFF ON OFF OFF ON ON  
ON OFF OFF ON OFF OFF ON ON  
OFF ON OFF ON OFF OFF ON ON  
ON ON OFF ON OFF OFF ON ON  
OFF OFF ON ON OFF OFF ON ON  
ON OFF ON ON OFF OFF ON ON  
OFF ON ON ON OFF OFF ON ON  
ON ON ON ON OFF OFF ON ON  
OFF OFF OFF OFF ON OFF ON ON  
ON OFF OFF OFF ON OFF ON ON  
210  
211  
212  
213  
214  
215  
216  
217  
218  
219  
220  
221  
222  
223  
224  
225  
226  
227  
228  
229  
230  
231  
232  
233  
234  
235  
236  
237  
238  
239  
240  
241  
242  
243  
244  
245  
246  
247  
248  
249  
250  
OFF ON OFF OFF ON OFF ON ON  
ON ON OFF OFF ON OFF ON ON  
OFF OFF ON OFF ON OFF ON ON  
ON OFF ON OFF ON OFF ON ON  
OFF ON ON OFF ON OFF ON ON  
ON ON ON OFF ON OFF ON ON  
OFF OFF OFF ON ON OFF ON ON  
ON OFF OFF ON ON OFF ON ON  
OFF ON OFF ON ON OFF ON ON  
ON ON OFF ON ON OFF ON ON  
OFF OFF ON ON ON OFF ON ON  
ON OFF ON ON ON OFF ON ON  
OFF ON ON ON ON OFF ON ON  
ON ON ON ON ON OFF ON ON  
OFF OFF OFF OFF OFF ON ON ON  
ON OFF OFF OFF OFF ON ON ON  
OFF ON OFF OFF OFF ON ON ON  
ON ON OFF OFF OFF ON ON ON  
OFF OFF ON OFF OFF ON ON ON  
ON OFF ON OFF OFF ON ON ON  
OFF ON ON OFF OFF ON ON ON  
ON ON ON OFF OFF ON ON ON  
OFF OFF OFF ON OFF ON ON ON  
ON OFF OFF ON OFF ON ON ON  
OFF ON OFF ON OFF ON ON ON  
ON ON OFF ON OFF ON ON ON  
OFF OFF ON ON OFF ON ON ON  
ON OFF ON ON OFF ON ON ON  
OFF ON ON ON OFF ON ON ON  
ON ON ON ON OFF ON ON ON  
OFF OFF OFF OFF ON ON ON ON  
ON OFF OFF OFF ON ON ON ON  
OFF ON OFF OFF ON ON ON ON  
ON ON OFF OFF ON ON ON ON  
OFF OFF ON OFF ON ON ON ON  
ON OFF ON OFF ON ON ON ON  
OFF ON ON OFF ON ON ON ON  
ON ON ON OFF ON ON ON ON  
OFF OFF OFF ON ON ON ON ON  
ON OFF OFF ON ON ON ON ON  
OFF ON OFF ON ON ON ON ON  
Fig. A.2 IQ Address Switch Settings from 126 to 250  
Page 28  
Rev. 0  

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