AVM AVM RS232 User manual

AVM RS232
Master
Manual

AVM RS232 Master Manual
AVM RS232 Master Manual
2
Middleton, WI 53562
[phone]
fax: [phone]
e-mail: [email protected]
Revision ΑΑ
ΑΑ
Α0499
2222 Pleasant View Road

AVM RS232 Master Manual  Table of Contents
3
AVM RS232 Master Manual  Table of Contents
Contents
1.0 AVM Hardware Overview ................................................................................... 8
1.1 Audio Section ....................................................................................................................... 9
1.2 Video Switch Architecture .................................................................................................. 10
1.2.1 Video Section Overview ............................................................................................ 11
1.2.2 AV Groups ................................................................................................................ 11
2.0 Installing and starting the AVM software........................................................ 12
2.1 Installing the AVM software ................................................................................................ 12
2.2 Running the AVM software ................................................................................................. 12
3.0 Connecting the Control PC to the AVM .......................................................... 13
4.0 Presets .................................................................................................................. 15
4.1 Remote Triggering of Presets ............................................................................................... 15
5.0 Direct I/O Configuration ................................................................................... 16
5.1 Input Configuration ............................................................................................................. 16
5.2 Output Configuration .......................................................................................................... 16
6.0 Stereo I/O control ............................................................................................... 17
6.1 Input controls ..................................................................................................................... 17
6.2 Output controls ................................................................................................................... 17
6.3 Setting control values .......................................................................................................... 17
6.4 Input width control .............................................................................................................. 18
6.5 Input pan control ............................................................................................................... 19
6.6 Output control ................................................................................................................... 20
6.7 Stereo input to stereo output example ................................................................................. 21
6.8 Mono input to stereo output example ................................................................................. 22
6.9 Mono input to mono output example .................................................................................. 23
6.10 Stereo input to mono output example ............................................................................... 23
7.0 RS232 Message Protocol .................................................................................. 24
7.1 RS232 Message Fields ....................................................................................................... 24
7.2 RS232 Reserved Bytes ....................................................................................................... 25
7.3 Hexadecimal Transmission .................................................................................................. 26
7.3.1 Commercial controllers ............................................................................................. 26
7.3.2 ASCII values ............................................................................................................. 26
7.4 Decimal to Hex conversion table ......................................................................................... 27
7.5 Byte Escape Sequence ....................................................................................................... 28
7.6 DIP Switches ..................................................................................................................... 29

AVM RS232 Master Manual  Table of Contents
4AVM RS232 Master Manual  Table of Contents
7.7 Introduction to using the RS232 Commands ........................................................................ 30
7.7.1 Are You There ........................................................................................................... 30
7.7.2 I Am Here ................................................................................................................30
7.7.3 Set Current Value ..................................................................................................... 31
7.7.4 Communication Recommendation .............................................................................. 31
12.0 RS232 Command Summaries ....................................................................... 32
Class 0: Matrix Mixer Messages ............................................................................ 40
Are You There .......................................................................................................................... 40
I Am Here ................................................................................................................................ 40
Get Matrix Configuration .......................................................................................................... 41
Matrix Mixer Configuration Report ........................................................................................... 42
Set Matrix Mixer Configuration ................................................................................................ 43
Set Matrix Mixer Name ............................................................................................................ 44
Set Communication Configuration ............................................................................................. 45
Get 8 X 8 Info .......................................................................................................................... 46
8 X 8 Info Report .................................................................................................................... 47
Get Mic Line Information .......................................................................................................... 48
Mic Line Information Report .................................................................................................... 49
Application Message ................................................................................................................ 50
Reset Matrix Mixer ................................................................................................................... 51
Get Video Information .............................................................................................................. 52
Video Info Report .................................................................................................................... 53
Class 1: Audio Matrix Messages............................................................................. 54
Get Audio Matrix Size .............................................................................................................. 55
Audio Matrix Size Report ........................................................................................................ 56
Get Input/Output Parameters ................................................................................................... 57
Matrix Input/Output Configuration Report ............................................................................... 58
Set Input/Output Parameters .................................................................................................... 60
Set I/O Target using Ramp ...................................................................................................... 62
Set I/O Target using Slew ........................................................................................................ 63
Set Input/Output Target and Ramp Time ................................................................................... 64
Set Input/Output Target and Slew Rate .................................................................................... 65
Set Input/Output Current Value ................................................................................................ 66
Set Input/Output Curve Index .................................................................................................. 67
Set Input/Output Mute ............................................................................................................. 68
Set Input/Output Stereo Pairs ..................................................................................................69
Set Input/Output Video Group ................................................................................................. 70
Set input pan/output balance ................................................................................................... 71
Set Input/Output Name ............................................................................................................ 72
Stop Input/Output Slewing ....................................................................................................... 73
Set Input/Output Collection Values ........................................................................................... 74
Audio Crosspoint Parameters ................................................................................................... 75

AVM RS232 Master Manual  Table of Contents
5
AVM RS232 Master Manual  Table of Contents
Class 2: Crosspoint Messages ................................................................................. 75
Ramp Times and Slew Rates .................................................................................................... 76
Crosspoint Get All Parameters ............................................................................................... 79
Crosspoint All Parameters Report ........................................................................................... 80
Crosspoint Set All Parameters ................................................................................................ 81
Ramp To Target Value ............................................................................................................ 82
Slew to target value .................................................................................................................. 83
Set Target Value and Ramp Time ............................................................................................... 84
Set Target Value and Slew Rate ................................................................................................ 85
Set Ramp Time ......................................................................................................................... 86
Set Current Value ..................................................................................................................... 88
Set Curve Index ....................................................................................................................... 89
Crosspoint Set Mute ................................................................................................................. 90
Crosspoint Stop Slewing ......................................................................................................... 91
Crosspoint Set Value Exclusive ............................................................................................... 92
Crosspoint Set N Values .......................................................................................................... 93
Crosspoint Set N Values Same ................................................................................................. 94
Get 64 Live Crosspoint Values ................................................................................................. 95
64 Live Crosspoint Values Report ............................................................................................ 96
Crosspoint Set 64 Values .......................................................................................................... 97
Get 64 DAC values .................................................................................................................. 98
64 DAC values report ............................................................................................................. 99
Class 3: Audio Preset Message Details ................................................................100
Get Preset .............................................................................................................................. 101
Audio Preset Report .............................................................................................................. 102
Set Audio Preset ................................................................................................................... 103
Set Audio Preset Name .......................................................................................................... 105
Set Audio Preset Values .......................................................................................................... 106
Set Audio Preset Ramp Time ................................................................................................ 107
Set Audio Preset Bitmap ........................................................................................................ 108
Set Audio Preset Crosspoint .................................................................................................. 109
Copy Preset .......................................................................................................................... 110
Go To Preset .......................................................................................................................... 111
Set Video Preset .................................................................................................................... 112
Get Video Preset ................................................................................................................... 114
Video Preset Report .............................................................................................................. 115
Copy Live Crosspoints to preset ............................................................................................. 116

AVM RS232 Master Manual  Table of Contents
6AVM RS232 Master Manual  Table of Contents
Class 4: DC Control Messages ............................................................................. 117
Get DC Control Status ...........................................................................................................118
DC Control Status Report ..................................................................................................... 119
Set DC Control Status .......................................................................................................... 120
Set DC Control Polling ......................................................................................................... 121
Set DC Control input configuration ....................................................................................... 122
Set DC Control output .......................................................................................................... 123
Set DC Control output configuration ..................................................................................... 124
Simulate DC Control single input ............................................................................................ 125
DC Control single input report .............................................................................................. 126
DC Control single output report ............................................................................................ 127
DC Control Get All I/O Status ............................................................................................... 128
DC Control All I/O Report .................................................................................................... 129
Class 11: Mic/Line Card Messages ......................................................................130
Get Input Gain Range ............................................................................................................. 131
Input Gain Range Report ....................................................................................................... 132
Set Input Gain Range ............................................................................................................. 133
Get Mic Current Level ........................................................................................................... 134
Current Mic Values Report .................................................................................................... 135
Class 12: Video Matrix Messages .........................................................................137
Get Video Input/Output Group Parameters .............................................................................. 137
Video Input/Output Group Parameter Report ......................................................................... 138
Set Video Input/Output Group Parameters ............................................................................. 140
Set Input/Output Group Name ............................................................................................... 141
Route Video ........................................................................................................................... 142
Route Video with Ramp .......................................................................................................... 143
Get All Video Routes .............................................................................................................. 144
All Video Routes Report ......................................................................................................... 145
Index..........................................................................................................................146

AVM RS232 Master Manual  Table of Contents
7
AVM RS232 Master Manual  Table of Contents
Programmers Notes

AVM RS232 Master Manual 
Overview
8AVM RS232 Master Manual 
Overview
1.0 AVM Hardware Overview
The AVM Audio/Video matrix contains two major components. The audio and the video switch are con-
trolled by multiple CPUs under the command of the application CPU as shown below.
1) The audio matrix is a fully controllable crosspoint matrix. At every crosspoint the user can independently
specify variables such as target value, ramp time, slew rate etc. AVM provides the following sizes of audio
matrices: 8 X 8, 16 X 8, 24 X 8, 32 X 8, 8 X 16, 16 X 16.
2) The video section is a completely transparent video switch capable of switching a wide range of popular
formats. With Intelixs supplied Windows® based setup software video sources are grouped with their
associated audio inputs, and the group can be rerouted with a single command. The video switch is available
in a wide range of standard sizes from 8 X 8 composite to 8 X 8 RGBHV.
The tight coupling of audio and video in the same chassis allows the very flexible and convenient grouping
and manipulation of complex AV sources. For instance a five signal (RGBHV) video source and its associ-
ated stereo audio can be grouped and manipulated as a single object.
Control of the AVM is accomplished either with the supplied Intelix software or via an external RS232
controller. Common RS232 commands and protocol are covered in later sections of this manual.
Fig. 1. This exploded
drawing shows the audio
(lower) and video (upper)
sections of a typical AVM.
Both sections are contained
in a single chassis.

9
AVM RS232 Master Manual 
Overview
AVM RS232 Master Manual 
Overview
1.1 Audio Section
The Intelix audio matrix mixer is a device which can route and mix audio signals from multiple sources to
multiple destinations. The matrix mixer is designed so that audio inputs can be independently mixed to any or
all outputs simultaneously. As shown below there is a VCA under software control at every I/O crosspoint.
The audio matrix can be controlled either by the supplied Windows® based software or by RS232 com-
mands.

AVM RS232 Master Manual 
Overview
10 AVM RS232 Master Manual 
Overview
1.2 Video Switch Architecture
The drawing below shows the architecture of an 8 X 8 section of a video switch. All crosspoints are switch-
able, but no more than one input can be switched to a given output at a time; i.e. only one closed switch per
column. An input can be sent to any number of outputs; i.e. any number of closed switches per row.
All video inputs are assigned to a video group. All video switching is accomplished by issuing a route video
group message. Even a single wire video input; e.g. composite is assigned to a video group. A video input
cannot be assigned to more than one group. This means that not all crosspoint switches are independently
controllable, since if an input is part of a group it cannot be switched to an output independently of its group.
This drawing (below) shows how 16 X 16 video switch cards can be combined to form larger video
switches. The smallest AVM product has only section #1. Other AVM models add sections #2 and/or #3 to
form larger switches (#3 cannot be added without adding #2). Note that this sparse matrix cannot be filled
in. A video group (such as an RGB input) can contain signals that span sections, but a single signal
cannot cross sections; e.g. input 2 cannot be routed to output 18 even if section #2 is present.

11
AVM RS232 Master Manual 
Overview
AVM RS232 Master Manual 
Overview
1.2.1 Video Section Overview
The AVM video switching section is entirely transparent; i.e. no processing or alteration of any kind takes
place when video signals pass through the AVM.
Different video input types require different numbers of I/O connectors; e.g. composite video uses a single
connector for all video and sync signals, while RGBHV video uses five connectors per source. The standard
AVM models can switch up to 8-16 video inputs of the following types:
1.2.2 AV Groups
The AVM handles all video inputs and outputs as AV groups. This means that all components of a video
input or output are defined as members of an AV group. This enables the AVM to switch sources as a single
object with single commands. For example, a VCR might consist of a single composite video input, a left
audio source, and a right audio source. An RGBHV video source with stereo audio would have seven
signals in its group. Note that all video inputs will be assigned to a group; i.e. even a single composite input
with no audio will be assigned a group number.
There are 48 input groups and 48 output groups. Each contains the groups video type and an audio type
(mono, stereo, or none). To route an input group to an output group the two groups must have compatible
video and audio types; e.g. you cannot route an input group with video type RGB to an output group with
type composite, nor an input group with stereo audio to an output group with no audio.
All grouping is handled automatically by the AVM setup software when you configure your application. It is
not possible to define AV groups outside of the AVM setup software.
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AVM RS232 Master Manual  Getting
Started
12 AVM RS232 Master Manual  Getting
Started
2.0 Installing and starting the AVM software
Regardless of where you obtained your AVM Designer software (CDROM, the Intelix web site, or
floppy disks) use these instructions to install and start the software.
2.1 Installing the AVM software
1) Run the file setup.exe
2) Follow the instructions on the screen.
2.2 Running the AVM software
Open the AVM software from the Program files option in the Windows Start menu (Intelix AVM).
You can run the AVM software as a stand-alone program; i.e. unattached to an AVM device. You can also
run it without an explicit file opened  you can run the program, do setup operations, then save to file, or
discard your setup.

13
AVM RS232 Master Manual  Getting
Started
AVM RS232 Master Manual  Getting
Started
3.0 Connecting the Control PC to the AVM
The connection between the AVM matrix mixer and your control PC is made with a null modem cable
with a DB-9 connector on the matrix end as shown below. The wiring diagram for a null modem cable is
at the bottom of the page. The drawing you use will depend on the connector on your PC. Most PCs
have either a DB-9 or a DB-25 on the serial port. The cable wiring for both connectors are shown.
Note: Some devices require that Clear to Send and Ready to send (pins 7 and 8) be tied together.
Before you can program your AVM matrix mixer, you need to have a personal computer (desktop or
laptop) capable of running the AVM program. Your computer must meet these requirements:
√PC computer with a CD ROM drive
√Windows 95® or Windows 98®
√Serial port connected to RS232 connector on Matrix Mixer
√a null modem cable (included  RS232CBL-10)
2
3
5
2
3
5
Matrix
female DB-
9
Controller
DB-9
RS232 DB-9 to DB-9 connections for
a null modem cable.
RS-232 DB-9 to DB-25 connections
for a null modem cable.
Controller
DB-25
2
3
5
2
3
7
Matrix
female DB-
9
The connections of the
AVMs DB-9 connector
for RS-232 communica-
tion. Ground
Receive
Transmit
23 5

AVM RS232 Master Manual  Getting
Started
14 AVM RS232 Master Manual  Getting
Started
3.1 DIP Switches
There are eight DIP switches on the rear panel of the Matrix (see drawing below). For all DIP switches, the
up position indicates the on condition, and the down position the off condition. The function of these
switches is shown below.
DIP switches 5 and 6 allow the RS-232 baud rate to be fixed at one of three values: 9600, 19200 or
38400. The Windows AVM software does not support 38400 baud. But that speed can be used by AMX,
Crestron and custom controllers.
DIP switch 7 allows the RS-232 checksum and escape byte to be toggled on or off. These should be
turned off in installations which include a permanent RS-232 controller, such as AMX, Crestron or custom
PC program. The RS-232 checksum and escape byte should be turned on in installations where the RS-
232 communication may be hindered because of cable length (greater than 50 feet) or lack of shielding from
external electronic noise.

15
AVM User Manual  Presets
AVM User Manual  Presets
4.0 Presets
The Intelix AVM contains 64 presets. A preset is an entire setup of the AVM mixer stored in AVMs
memory. A preset specifies all crosspoint levels, I/O routing and grouping required to configure the AVM,
including both audio and video crosspoints and parameters. There are 64 presets in the AVM memory.
Each preset fully configures the AVM and can be modified in any way you wish.
4.1 Remote Triggering of Presets
Presets can be triggered by external devices by using the Direct I/O capabilities of the AVM. From the DB-
25 connector on the rear of the AVM chassis, there is access to 8 inputs and 8 outputs. The inputs can be
individually configured to trigger presets. The outputs can be individually configured to reflect the fact that a
particular preset has been invoked.
This allows you to switch the AVM to a preset with an external device (through a direct Input pin), and
drive an external indicator that a preset has become active (through a direct Output pin). The RS232
commands for this process are in Class 4 (see sec. 5.0).

AVM User Manual  Direct I/Os
16 AVM User Manual  Direct I/Os
A direct I/O pins behavior can be configured with RS232 commands. The messages to configure
the pins are Class 4 RS232 messages.
5.1 Input Configuration
The input configuration parameter consists of four bytes ([1]-[4]):
Byte [1]: Input type. Currently the only supported input type is 10d. This value makes the input a preset
goto; i.e. when this input pin becomes active, the matrix switches to a preset. The number of the target is
contained in Byte [2].
Byte [2]: Preset number. When byte [1] is 10d then byte [2] contains the number of
the preset to goto when this pin becomes active. If byte [1] is anything other than 10d,
all other bytes of input configuration will be ignored.
Byte [3]: Reserved.
Byte [4]: Reserved.
5.2 Output Configuration
The output configuration parameter consists of four bytes ([1]-[4]):
Byte [1]: Input type. Currently the only supported input type is 10d. This value makes the output a preset
reflect. This means that whenever a specified preset is active (from any source) this output will become
active. This is particularly useful in driving an indicator of a preset select panel.
Byte [2]: Preset number. When byte [1] is 10d then byte [2] contains the number of the preset reflected by
this pin. If byte [1] is anything other than 10d, all other bytes of input configuration will be ignored.
Byte [3]: Reserved.
Byte [4]: Reserved.
5.0 Direct I/O Configuration

17
AVM User Manual  Stereo
AVM User Manual  Stereo
6.0 Stereo I/O control
Your Intelix matrix allows a great deal of flexibility when routing and controlling stereo audio. Both inputs
and outputs can be defined as mono or stereo. This gives four possible combinations of inputs and outputs:
1) Mono input to mono output
2) mono input to stereo output
3) stereo input to mono output
4) stereo input to stereo output
In cases 2 and 4, there are input and output controls that can be used to set balance, panning and width
of the audio signals. These controls are explained below.
6.1 Input controls
There are two types of input controls: an input width control, and an input pan control. The input width
control is used only for stereo inputs, and the input pan control is used only for mono inputs. Their
internal workings are explained on the following pages.
6.3 Setting control values
The control values for all stereo controls ( input pan control, input width control and output balance control
are set with multiple calls to a single RS232 command: I/O Goto Pan; this is a Class 1 RS-232 message. It
is explained in detail on page 89.
The I/O Goto Pan message has a single parameter pan/width/balance. The meaning of this parameter
changes depending on the nature of the target. The matrix examines the i/o flag and i/o number to determine
whether the target is an input/output and mono/stereo.
The meaning of the pan/width/balance parameter is determined as follows:
if target is a mono input the meaning is pan
if target is a stereo input the meaning is width
if target is any output the meaning is balance
There is one output control, the output balance control. It is used only with stereo outputs. The output
balance control distributes two inputs to two outputs, in proportion to the setting of the control value.
6.2 Output controls

18
AVM User Manual  Stereo
AVM User Manual  Stereo
6.4 Input width control
The stereo width control is used for narrowing or reversing a stereo input signal or between two stereo
outputs on the matrix. The control acts like a pair of linked potentiometers; e.g. any change to the pot on
one input causes a corresponding change to the other member of the stereo pair. The action of the control
allow full stereo separation of the two input signals, a summed mix of the two input signals to both outputs,
and a complete stereo reversal of the two inputs. The value of the pots can be set at any value between 0
and 255. The input width control is used with stereo input pairs only.
The table below shows the result of setting the input width control to a range of values. The default value of
the width control is 0.
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19
AVM User Manual  Stereo
AVM User Manual  Stereo
6.5 Input pan control
As the diagram below shows, the input pan control takes a single mono input and by use of a virtual potenti-
ometer, distributes the input to a pair of outputs. The input control pan is used only with monaural inputs.
A value of 0 on the control will send the input entirely to Tap A, and nothing to Tap B, while a value
of 255 will send the input entirely to Tap B and nothing to Tap A. A value of 127 (center) sends the input
equally to Taps A and B.
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The table below shows the result of setting the input pan control to a range of values. The default value for
the control is 127 (centered).

20
AVM User Manual  Stereo
AVM User Manual  Stereo
6.6 Output control
There is one output control, the output balance control. It is used only with stereo outputs. Monaural
outputs have no separate output control. The output balance control takes two inputs and distributes them
to two outputs, in proportion to the setting of the control value. Typical control values and their results are
shown in the table below. The default value for the control is 127 (centered).
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