Kramer VS-3232A User manual

Kramer Electronics, Ltd.
USER MANUAL
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Model:
VS-3232A
32x32 Audio Matrix Switcher

Contents
i
Contents
1Introduction 1
2Getting Started 1
2.1 Quick Start 1
3Overview 3
4Your Balanced Stereo Audio Matrix Switcher 3
4.1 Using the IR Transmitter 8
5Installing the VS-3232A in a Rack 9
6Connecting a Single VS-3232A 32x32 Audio Matrix Switcher 10
6.1 Connecting the Balanced/Unbalanced Stereo Audio Input/Output 11
7VS-3232A 32x32 Audio Matrix Switcher Configurations 12
7.1 The VS-3232A Configuration Setups 12
7.1.1 The Follow-System Configuration Setup 12
7.1.2 The Master/Slave Configuration Setup 14
7.1.3 The Follow-System versus the Master/Slave Configuration Setups 16
7.2 Assembling a Multi-channel Audio Switcher 17
7.3 Connecting the VS-3232A as a Companion to the VS-3232V(xl) 18
7.4 Connecting the VS-3232A as a Companion to a Multi-channel Video Switcher 19
7.5 DIP-switch Settings 20
7.5.1 Setting the Machine # 21
7.6 Connecting a Control Interface 21
7.6.1 Connecting the RS-232 Control Interface 21
7.6.2 Connecting the RS-485 Control Interface 23
7.7 Setting the Sync 25
7.8 Controlling via the ETHERNET 26
7.8.1 Connecting the ETHERNET Port directly to a PC (Crossover Cable) 26
7.8.2 Connecting the ETHERNET Port via a Network Hub (Straight-Through Cable) 27
7.8.3 Control Configuration via the Ethernet Port 27
8Operating Your Video Matrix Switcher 28
8.1 Startup Display 28
8.1.1 Viewing the Display 29
8.2 Using the Keypad Buttons 29
8.3 Confirming Actions 29
8.3.1 Toggling between the At Once and Confirm Modes 30
8.3.2 Confirming a Switching Action 30
8.4 Switching Options 30
8.4.1 Switching one Input to one Output 31
8.4.2 Switching Several Inputs to Several Outputs 31
8.4.3 Switching one Input to all Outputs 32
8.4.4 Clearing an Output 32
8.4.5 Clearing Several Outputs 32

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8.4.6 Clearing all Outputs 32
8.5 Storing and Recalling Setups 33
8.5.1 Storing Setups 33
8.5.2 Recalling Setups 34
8.6 Using the DEFAULT SETUP Button (Unity Setting) 34
8.7 Choosing the FOLLOW or the BREAKAWAY Modes 35
8.8 Using the LOCK Button 37
8.9 Setting the Input/Output Volume 37
9The MENU Commands 39
9.1 Selecting the Audio Switching Method 41
9.2 Selecting the SYNC Configuration 41
9.3 Selecting the INTERFACE Configuration 41
9.4 Selecting the Interface REPLY Configuration 42
9.5 Selecting the PROTOCOL Configuration 42
9.6 Selecting the Store DEFAULT Setup Configuration 42
9.7 Selecting the Initialization Sequence Delay Time for a Slave Unit 43
9.8 The Main Firmware Version 43
9.9 Selecting the TOTAL RESET Option 44
10 Flash Memory Upgrade 45
10.1 Switcher Flash Memory Upgrade 45
10.1.1 Downloading from the Internet 45
10.1.2 Connecting the PC to the RS-232 Port 45
10.1.3 Upgrading Firmware 46
10.2 Ethernet Flash Memory Upgrade 50
10.2.1 Downloading from the Internet 50
10.2.2 Connecting the PC to the RS-232 Port 50
10.2.3 Upgrading Firmware 51
11 Technical Specifications 52
11.1 Audio Performance Graphs 53
12 Communication Protocols 54
12.1 The Kramer 2000 Communication Protocol 54
12.2 Audio Gain/Attenuation Commands 59
12.3 ASCII (Sierra) Protocol for 3232A Series Switcher 60
12.3.1 ASCII Protocol Available Commands 60
Figures
Figure 1: Front Panel VS-3232A 32x32 Audio Matrix Switcher 4
Figure 2: VS-3232A Keypad Selector Buttons 6
Figure 3: Rear Panel VS-3232A 32x32 Audio Matrix Switcher 7
Figure 4: Connecting the VS-3232A Audio Matrix Switcher 10
Figure 5: Connecting a Balanced VS-3232A Stereo Audio Input and Output 11
Figure 6: Connecting an Unbalanced VS-3232A Stereo Audio Input 11
Figure 7: Connecting an Unbalanced VS-3232A Stereo Audio Output 11

Contents
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Figure 8: Connecting in the Follow-System Configuration Setup 13
Figure 9: Connecting in the Master/Slave Configuration Setup 15
Figure 10: The Follow-System Combined with the Master/Slave Configuration Setup 16
Figure 11: Configuring a 4-channel 32x32 Switcher with Two VS-3232A Switchers 17
Figure 12: Connecting the VS-3232A as a Companion to the VS-3232Vxl 18
Figure 13: Connecting the VS-3232A as a Companion to a Multi-channel Switcher 19
Figure 14: DIP-switches 20
Figure 15: Connecting a PC to two VS-3232A Units 22
Figure 16: RS-485 Connector PINOUT 23
Figure 17: Connecting the RS-485 Connectors between VS-3232A/VS-3232V(xl) Units 24
Figure 18: RS-485 Control Interface and SYNC Connections 25
Figure 19: Local Area Connection Properties Window 27
Figure 20: Internet Protocol (TCP/IP) Properties Window 27
Figure 21: Default Startup Status Display Sequence 28
Figure 22: Setting the SYNC Configuration (an example) 40
Figure 23: Splash Screen 46
Figure 24: Atmel – Flip Window 46
Figure 25: Device Selection Window 47
Figure 26: Device Selection window 47
Figure 27: Loading the Hex 48
Figure 28: RS-232 Window 48
Figure 29: Atmel – Flip Window (Connected) 49
Figure 30: Atmel – Flip Window (Operation Completed) 49
Figure 31: The KFR-Programmer Window 51
Figure 32: Frequency Response (Bandwidth) of the VS-3232A 53
Figure 33: THD+N of the VS-3232A 53
Figure 34: Maximum Input/Output Level at 1kHz 53
Figure 35: Linearity of the VS-3232A 54
Figure 36: Spectrum Plot of the Output Signal for a 1kHz, 4dBu Input 54

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Tables
Table 1: Front Panel VS-3232A 32x32 Audio Matrix Switcher Features 5
Table 2: VS-3232A Keypad Selector Buttons Functions 6
Table 3: Rear Panel VS-3232A 32x32 Audio Matrix Switcher Features 8
Table 4: Follow-System versus the Master/Slave Configuration Setup 16
Table 5: DIP-switch Settings for VS-3232A and VS-3232V(xl) Switchers 20
Table 6: DIP-switch Definitions 20
Table 7: Machine # DIP-switch Settings 21
Table 8: Audio Output Attenuation Steps 37
Table 9: Audio Switching Method Configuration Menu 41
Table 10: SYNC Configuration Menu 41
Table 11: INTERFACE Configuration Menu 41
Table 12: Interface REPLY Configuration Menu 42
Table 13: PROTOCOL Configuration Menu 42
Table 14: Initialization Sequence Delay Time 43
Table 15: Total Reset Menu 44
Table 16: Technical Specifications of the VS-3232A Video Matrix Switcher 52
Table 17: Hex Table (IN 1-32 to OUT 1-16) 55
Table 18: Hex Table (IN 1-32 to OUT 17-32) 57

Introduction
1
1
1 Introduction
Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been
providing a world of unique, creative, and affordable solutions to the vast range
of problems that confront the video, audio, presentation, and broadcasting
professional on a daily basis. In recent years, we have redesigned and upgraded
most of our line, making the best even better! Our 1,000-plus different models
now appear in 11 groups1that are clearly defined by function.
Thank you for purchasing your Kramer VS-3232A 32x32 Balanced Stereo
Audio Matrix Switcher.
This product is ideal for the following typical applications:
•Professional display systems requiring audio signal routing
•Broadcast, presentation and production facilities
•Rental/staging applications
•Monitoring in large duplication systems
The package includes the following items:
•VS-3232A 32x32 Audio Matrix Switcher
•Windows®-based Kramer control software
•Power cord and Null-modem adapter
•This user manual2
2 Getting Started
We recommend that you:
•Unpack the equipment carefully and save the original box and packaging
materials for possible future shipment
•Review the contents of this user manual
•Use Kramer high-performance high-resolution cables3
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.
1 GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Routers; GROUP 3: Control Systems; GROUP 4:
Format/Standards Converters; GROUP 5: Range Extenders and Repeaters; GROUP 6: Specialty AV Products; GROUP 7:
Scan Converters and Scalers; GROUP 8: Cables and Connectors; GROUP 9: Room Connectivity; GROUP 10: Accessories
and Rack Adapters; GROUP 11: Sierra Products
2 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com
3 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

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Getting Started
2

Overview
3
3
3 Overview
The VS-3232A is a high-performance 32x32 matrix switcher (router) for
analog balanced stereo audio signals. The unit can route any or all inputs to
any or all outputs simultaneously.
The VS-3232A features:
•Clean switching (noise free)
•Level control for each input and output
•An S/N ratio of over 100dB at +20dBu/1kHz and a linearity better than
0.1dB from -25dBu to +20dBu
•THD and noise below 0.03%
•A flat frequency response from 20Hz to 20kHz (±0.1dB)
•The ability to operate as a standalone audio router or as a companion
router to the VP-3232V(xl)
•The ability when connected to the VP-3232V(xl), to operate in audio-follow-
video or breakaway mode
•Flexible control options: front panel, remote control via RS-232
(K-Router™ Windows®-based software is included), RS-485, Ethernet
and IR remote (included)
•A TAKE button for executing multiple switches all at once
•60 memory locations to store the machine's full status such as presets to be
recalled and executed when needed. One "Default" setup can be executed
immediately by pressing the default button
•Front panel lockout
•Two optional communication protocols, the Kramer 2000 and Sierra
ASCII protocols (partial)
•A worldwide power supply, 100-240V AC on a standard 19” rack mount
size, with 2U Rack "ears" included
To achieve the best performance:
•Use only good quality connection cables to avoid interference,
deterioration in signal quality due to poor matching, and elevated noise
levels (often associated with low quality cables)
•Avoid interference from neighboring electrical appliances that may
adversely influence signal quality and position your VS-3232A away from
moisture, excessive sunlight and dust
4 Your Balanced Stereo Audio Matrix Switcher
Figure 1and Table 1define the front panel of the VS-3232A.

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Your Balanced Stereo Audio Matrix Switcher
4
TAKE LOCK
MENU
1
4
7
5
8
6
9
0
2 3
Figure 1: Front Panel VS-3232A 32x32 Audio Matrix Switcher

Your Balanced Stereo Audio Matrix Switcher
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5
Table 1: Front Panel VS-3232A 32x32 Audio Matrix Switcher Features
#
Feature
Function
1 IR Receiver The red LED is illuminated when receiving signals from the Kramer infrared
remote control transmitter
2 POWER Switch Illuminated switch for turning the unit ON or OFF
3 Keypad See Figure 2and Table 2
4 FOLLOW Button Press to enter the Follow mode in the multi-switcher configuration
5 BREAKAWAY Button Press to enter the Standalone mode in the multi-switcher configuration
6 DEFAULT SETUP Button Press to recall the default setup (UNITY setting), see section 9.6
7 INPUTS/OUTPUTS LCD
Display Displays the outputs (in the upper row) switched to the selected inputs (in the lower row).
Displays user interface messages and configuration menu items
8 LOCK Button Toggle1to lock/unlock the front panel buttons
9 MENU Button Press once to enable the ALL, OFF STO and RCL buttons
Press twice to enter the audio input/output volume control menu
Press three times to enter the configuration menu
When in the configuration menu, press to browse through the menu items
10 TAKE Button Used to confirm and complete setup and switching
1 Press and hold the LOCK button for about two seconds to toggle

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Your Balanced Stereo Audio Matrix Switcher
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The keypad selector buttons (illustrated in Figure 2and Table 2) are used to
select the outputs and the inputs when routing1. Use the keypad button to
shift the display content to the left, and the keypad button to shift the
display content to the right (as the LCD display is only large enough to show
13 cross-points out of a total of 32). Most keypad buttons have more than one
function, as defined in Table 2.
Table 2: VS-3232A Keypad Selector Buttons Functions
Keypad #
Function
1
4
7
5
8
6
9
0
2 3
Figure 2: VS-3232A Keypad
Selector Buttons
1 ALL
2
– Press ALL followed by an input number to
connect that input to all the outputs
LEFT – Press to select the left channel of a selected
input or output3
2 L+R (Left and Right) – Press to select both left and
right channels of a selected input or output
3 OFF2– Press OFF followed by an output number
to disconnect that output
RIGHT – Press to select the right channel of a
selected input or output
4 STO
2
– Press to store the current setting in the non-
volatile memory
6 RCL
2
– Press to recall a setup from the
non-volatile memory
7 LEVEL UP – Press to increase the audio output
level of the selected input or output4
9 LEVEL DOWN – Press to decrease the audio level
of the selected input or output4
(Backward) ESC – Press to exit the current operation
(Forward) ENT – Press to complete the input-output setup
when using a one-digit number instead of two digits5
Press to enter the options in a setup menu
Figure 3and Table 3define the rear panel of the VS-3232A.
1 See Section 8.4
2 This button is enabled and illuminated after pressing the MENU button
3 For audio level adjustment
4 You can adjust the left, right or both channels of an input or an output
5 For example, to enter input 5, you can either press 0, 5 or 5, ENT

Your Balanced Stereo Audio Matrix Switcher
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Figure 3: Rear Panel VS-3232A 32x32 Audio Matrix Switcher

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Your Balanced Stereo Audio Matrix Switcher
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Table 3: Rear Panel VS-3232A 32x32 Audio Matrix Switcher Features
#
Feature
Function
1 INPUT Terminal Block
Connectors Connect to the balanced stereo audio sources (from 1 to 32)
2 OUTPUT Terminal Block
Connectors Connect to the balanced stereo audio acceptors (from 1 to 32)
3 FLASH MAIN Button Push in
1
to upgrade the switcher microcontroller to the latest Kramer
firmware (seeSection 10.1
4
), or release (the factory default) for normal
operation
RS-232 IN 9-pin D-sub F Port Connects to the PC or the Remote Controller
2
5 RS-232 OUT 9-pin D-sub M Port Connects to the RS-232 IN 9-pin D-sub F port of the next unit in the
daisy-chain connection
6 RS-485 Detachable Terminal
Block Port The A and B PINs are for RS-485, and the SYNC and the G PINs are for vertical sync and ground connection, respectively
7 SETUP DIP-switches For setup of the unit (see Section 7.5
8 ) FLASH Button Push in1to upgrade theETH FLASH firmware version (see section
10.2), or release (the factory default) for normal operation
9 ETHERNET Connector Connects to the PC or other Serial Controller through computer
networking LAN
10 FACTORY RESET Button Press to reset to factory default definitions
3
:
IP Address: 192.168.1.39
Mask: 255.255.255.0
Gateway: 192.168.1.1
11 REMOTE IR 3.5mm Mini Jack Connects to an external IR receiver unit4for controlling the machine via
an IR remote controller (instead of using the front panel IR receiver)
12 Power Connector with Fuse AC connector enabling power supply to the unit
4.1 Using the IR Transmitter
You can use the RC-IR2 IR transmitter to control the machine via the built-in
IR receiver on the front panel or, instead, via an optional external IR receiver5.
The external IR receiver can be located up to 15 meters away from the
machine. This distance can be extended to up to 60 meters when used with
three extension cables6.
Connect the external IR receiver to the REMOTE IR 3.5mm connector.
1 Using a small screwdriver, if required
2 If the unit is not the first unit in the line, connects to the RS-232 OUT 9-pin D-sub F port of the previous unit in the line
3 Turn the machine OFF using the power switch and then turn it ON while pressing the ETH Factory Reset button. The unit
will power up and load its memory with the factory default definitions
4 Can be used instead of the front panel (built-in) IR receiver to remotely control the machine
5 Model: C-A35M/IRR-50
6 Model: C-A35M/A35F-50

Installing the VS-3232A in a Rack
9
9
5 Installing the VS-3232A in a Rack
This section describes what to do before installing on a rack and how to rack
mount.

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Connecting a Single VS-3232A 32x32 Audio Matrix Switcher
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6 Connecting a Single VS-3232A 32x32 Audio Matrix Switcher
To connect the VS-3232A as illustrated in the example in Figure 4, do the
following1:
1. Connect up to 32 balanced audio sources2.
2. Connect up to 32 balanced audio acceptors2.
3. Set the DIP-switches (see Section 7.5
4. If required, connect a PC or controller to the RS-232 port (see
).
Section
7.6.1) or the RS-485 port (see 7.6.2Section ) or the ETHERNET port (see
7.8Section
5. Connect the power cord3.
).
If necessary, review and set the system variables, using the MENU function,
and the default setup (UNITY setting) as Section 9 describes.
Figure 4: Connecting the VS-3232A Audio Matrix Switcher
1 Switch OFF the power on each device before connecting it to your VS-3232A
2 You do not have to connect all the inputs and the outputs. In this example only two inputs (two DAT players) and two
outputs (a power amplifier with speakers and a DAT recorder) are connected
3 We recommend that you use only the power cord that is supplied with this machine

Connecting a Single VS-3232A 32x32 Audio Matrix Switcher
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6.1 Connecting the Balanced/Unbalanced Stereo Audio Input/Output
This section illustrates how to wire:
•A balanced stereo audio input and output, see Figure 5
•An unbalanced stereo audio input, see Figure 6
•An unbalanced Stereo Audio Output, see Figure 7
Figure 5: Connecting a Balanced VS-3232A Stereo Audio Input and Output
Figure 6: Connecting an Unbalanced VS-3232A Stereo Audio Input
Figure 7: Connecting an Unbalanced VS-3232A Stereo Audio Output

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VS-3232A 32x32 Audio Matrix Switcher Configurations
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7 VS-3232A 32x32 Audio Matrix Switcher Configurations
The VS-3232A belongs to a series of 32x32 matrix switchers, including the
VS-3232V and the VS-3232Vxl, and as such, can interconnect with them. The
following sections describe:
•The VS-3232Aconfiguration setups (see Section 7.1
•Various matrix configurations (see ) Sections 7.2, 7.3, and 7.4)
•The DIP-switch setup (see Section 7.5
•How to connect a control interface (see
) Section 7.6
•How to set the SYNC (see ) Section 7.7
•How to control via the Ethernet (see ) Section 7.8
7.1 The VS-3232A Configuration Setups
)
The VS-3232A includes two configuration setups: the Follow-System setup
(see Section 7.1.1) and the Master/Slave setup (see Section 7.1.2).
7.1.1 The Follow-System Configuration Setup
The Follow-System configuration allows communication between the connected
units via a common control line.
In the Follow-System configuration setup:
•Any type of signal can follow one or more signals within the setup at your
choice
•Any unit can be turned ON or OFF at any time
•The LCD display on each unit shows the switching operations
independently
Each unit within this configuration can be switched in the FOLLOW or
BREAKAWAY state (via the FOLLOW or BREAKAWAY front panel
buttons) at any time, depending on the current application requirements.
When the:
•FOLLOW button is pressed, signals are switched simultaneously
•BREAKAWAY button is pressed, each machine in the configuration setup
is switched independently
By default, the matrix switchers are set to the BREAKAWAY state (meaning
that each machine switches independently from the other machines in the
configuration setup).
Pressing the FOLLOW button on one machine and then on other machines,
sets them searching for other machines, and they can follow each other
without reference to the order in which they are connected. In this state,

VS-3232A 32x32 Audio Matrix Switcher Configurations
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switching an input to an output on one machine, switches the same input to
the same output on the other machines in the FOLLOW state.
DIP 5 defines whether the VS-3232A unit can communicate with other
switchers via a common control line. Set DIP 5 to:
•ON, to enable the Follow-System configuration setup
•OFF, to disable the Follow-System configuration setup
Set the machine number on each machine to a different value.
The example illustrated in Figure 8 shows three 32x32 matrix switchers: one
composite video (CV) switcher (the VS-3232Vxl) and two VS-3232A audio
switchers (A1 for the “English” language, and A2 for the “French” language).
DIP 5 is set to ON and DIP 6 is set to OFF on all the switchers. Each unit
within the system is set to a different machine number (see Section 7.5.1).
VS-3232Vxl
VS-3232A
VS-3232A
DIP 5 ON
DIP 6 OFF (Master)
RS-485
RS-485
CV
A1 - English
A2 - French
Figure 8: Connecting in the Follow-System Configuration Setup
The Follow-System configuration Setup lets you operate the system in the
following way:
•Initially, all three units are set to the Breakaway state. This means that
each unit operates independently, as a standalone unit
•Pressing the FOLLOW button on the two audio switchers, sets them
searching for other machines they can follow within the communication
line
At this state, the video switcher still operates as a standalone unit, but the
audio switchers follow each other: for example, switching input 1 to
output 16 on the English language audio switcher, switches input 1 to
input 16 on the French language audio switcher

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VS-3232A 32x32 Audio Matrix Switcher Configurations
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•Pressing the FOLLOW button on the CV switcher too, sets it searching for
the other machines in the FOLLOW state
At this state, all three switchers follow each other: for example, switching
input 1 to output 16 on the English language audio switcher, switches
input 1 to output 16 on the French language audio switcher and on the CV
switcher. Alternatively, you switch the CV switcher and have both audio
switchers follow
•To return to independent switching, simply press the BREAKAWAY
button on the switcher
7.1.2 The Master/Slave Configuration Setup
The Master/Slave configuration setup is only used for the multi-channel switchers
configuration: one unit is set to be the Master and the other units are set to be the
Slaves. The Slave units always follow the Master, they cannot be set to work as a
standalone, unless you turn them off and change the DIP-switch settings.
In the Master/Slave configuration setup, the Slave unit initializing-sequence
always follows the Master unit initialization-sequence, and the entire setup
sequence is automatic (the Master–slave system automatically sets the master
and the slave setup follows).
If several slave units are connected in a Master/Slave configuration, the
initialization delay time for each of the Slave units (except for the first slave in
the sequence) should be programmed via the menu, as described in Section
9.7.
To change the initializing sequence delay time for a Slave unit via the menu,
set DIP 6 to OFF and turn the unit ON separately in the Master mode.
On the Slave VS-3232A unit, the LCD display1, shows the following message
upon initialization2:
The unit set in SLAVE mode
Front panel completely LOCKED
However, during normal operation, the display on the Slave VS-3232A unit
dynamically shows3all the changes that were made in the Master VS-3232A unit.
The front panel control is managed via the Master unit, on which the front
panel buttons are unlocked and the LCD display illuminates.
1 At the time of powering the machines ON
2 Or when pressing any of the front panel buttons (by mistake)
3 Albeit with an LCD Display that does not illuminate

VS-3232A 32x32 Audio Matrix Switcher Configurations
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The BREAKAWAY and FOLLOW front panel buttons have no effect in the
Master/Slave configuration setup since the connected machines act as one unit
in one box.
DIP 6 determines the operation mode of each unit within the Master/Slave
configuration setup. DIP 6 is set to:
•ON, for the Slave units in the configuration setup
•OFF, for the Master unit in the configuration setup
Set the machine number on all the machines to the same value.
The example illustrated in Figure 9 shows three 32x32 matrix switchers: one
composite video switcher and two audio switchers. DIP 5 is set to OFF on all
three switchers and DIP 6 is set to OFF on the CV VS-3232Vxl switcher (the
Master) and to ON on the two VS-3232A audio switchers1(the Slaves). All
the units have the same machine number (see Section 7.5.1).
VS-3232Vxl
VS-3232A
VS-3232A
DIP 5 OFF
DIP 6 OFF (Master)
RS-485
RS-485
CV
A1 - English
A2 - French
Figure 9: Connecting in the Master/Slave Configuration Setup
In this example, the Slaves always follow the Master, and both machines act
as a single unit.
Switching input 1 to output 16 on the CV switcher, switches input 1 to output
16 on the English language audio switcher and on the French language audio
switcher. In this state you cannot perform this switching operation on any of
the audio switchers and have the CV switcher follow, or set any of the
machines in this configuration to operate independently (as a standalone unit),
unless you turn OFF the machines and change the DIP-switch settings.
1 A1 for the “English” language, and A2 for the “French” language