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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 Algo™ are 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
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IQ Mixer/Multiplexer Hardware Installation
DSPI
ENABLE
DSPI
ENABLE
Fig. 1.1 Three Mixer / Multiplexer Models
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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 intelligence™ capability, 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-5™ can 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.
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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
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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
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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
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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
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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
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175
176
177
178
179
180
181
182
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184
185
186
187
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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
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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
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