Kramer VP-4x4xl User manual

Kramer Electronics, Ltd.
USER MANUAL



Model:
VP-4x4xl
4x4 UXGA / Audio Matrix Switcher

Contents
i
Contents
1 Introduction 1
2 Getting Started 1
2.1 Quick Start 1
3 Overview 3
4 Your UXGA / Audio Matrix Switcher 3
4.1 Using the IR Transmitter 6
5 Installing the VP-4x4xl on a Rack 7
6 Connecting the VP-4x4xl 4x4 UXGA / Audio Matrix Switcher 8
6.1 Connecting the VP-4x4xl Rear Panel 8
6.2 Connecting the Balanced/Unbalanced Stereo Audio Input/Output 10
6.3 Connecting a PC 11
6.4 Cascading Machines 11
6.5 Dipswitch Settings 13
6.6 Setting the Delay 14
7 Operating Your Audio Matrix Switcher 15
7.1 Displaying Unit Characteristics 15
7.2 Choosing the Audio-Follow-Video or Breakaway Option 16
7.2.1 Setting the Audio-Follow-Video Option 16
7.2.2 Setting the Breakaway Option 16
7.3 Switching OUT-IN Combinations 17
7.4 Confirming Settings 17
7.4.1 Toggling between the AT ONCE and CONFIRM Modes 18
7.4.2 Confirming a Switching Action 18
7.5 Storing/Recalling Input/Output Configurations 19
7.5.1 Storing an Input/Output Configuration 19
7.5.2 Recalling an Input/Output Configuration 19
7.5.3 Deleting an Input/Output Configuration 20
7.6 Locking the Front Panel 20
8 Flash Memory Upgrade 21
8.1 Downloading from the Internet 21
8.2 Connecting the PC to the RS-232 Port 21
8.3 Upgrading Firmware 21
9 Technical Specifications 27
10 Table of Hex Codes for Serial Communication 28
11 Kramer Protocol 2000 29

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Contents
ii
Figures
Figure 1: VP-4x4xl 4x4 UXGA / Audio Matrix Switcher 4
Figure 2: Connecting the VP-4x4xl 4x4 UXGA / Audio Matrix Switcher 9
Figure 3: Connecting the Balanced Stereo Audio Input/Output 10
Figure 4: Connecting the Unbalanced Stereo Audio Output 10
Figure 5: Connecting an Unbalanced Source to the Balanced Input 10
Figure 6: Connecting a PC without using a Null-modem Adapter 11
Figure 7: Control Configuration via RS-232 and RS-485 12
Figure 8: VP-4x4xl Dipswitches 13
Figure 9: SELECTOR Buttons 19
Figure 10: Splash Screen 22
Figure 11: Atmel – Flip Window 22
Figure 12: Device Selection Window 23
Figure 13: Selecting the Device from the Selection Window 23
Figure 14: Loading the Hex 24
Figure 15: RS-232 Window 24
Figure 16: Atmel – Flip Window (Connected) 25
Figure 17: Atmel – Flip Window (Operation Completed) 26
Tables
Table 1: Front Panel VP-4x4xl 4x4 UXGA / Audio Matrix Switcher Features 5
Table 2: Rear Panel VP-4x4xl 4x4 UXGA / Audio Matrix Switcher Features 6
Table 3: Dipswitch Settings 13
Table 4: Machine # Dipswitch Settings 13
Table 5: DELAY Dipswitch Settings 14
Table 6: STATUS 7-segment Display 15
Table 7: Technical Specifications of the VP-4x4xl 4x4 UXGA / Audio Matrix Switcher 27
Table 8: Hex Codes for Switching via RS-232/RS-485 28
Table 9: Hex Codes for Switching Audio Channels via RS-232/RS-485 28
Table 10: Protocol Definitions 29
Table 11: Instruction Codes for Protocol 2000 30

Introduction
1
1 Introduction
Welcome to Kramer Electronics (since 1981): a world of unique, creative and
affordable solutions to the infinite range of problems that confront the video,
audio and presentation professional on a daily basis. In recent years, we have
redesigned and upgraded most of our line, making the best even better! Our
500-plus different models now appear in 8 Groups
1
, which are clearly defined
by function. 
Congratulations on purchasing your Kramer VP-4x4xl 4x4 UXGA / Audio
Matrix Switcher. This product is ideal for the following typical applications:
Professional display systems requiring true 4x4 matrix operation
Multimedia and presentation source and acceptor selection
Remote monitoring of computer activity in schools and businesses
Rental/staging applications
The package includes the following items:
VP-4x4xl 4x4 UXGA / Audio Matrix Switcher
Windows®-based Kramer control software
2
Power cord
3
and Null-modem adapter
Infra-red remote control transmitter (including the required batteries and a
separate user manual
4
) and this user manual
4
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 cables
5
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.
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1 GROUP 1: Distribution Amplifiers; GROUP 2: Video and Audio Switchers, Matrix Switchers and Controllers; GROUP 3:
Video, Audio, VGA/XGA Processors; GROUP 4: Interfaces and Sync Processors; GROUP 5: Twisted Pair Interfaces;
GROUP 6: Accessories and Rack Adapters; GROUP 7: Scan Converters and Scalers; and GROUP 8: Cables and Connectors
2 Download the latest software from our Web site at http://www.kramerelectronics.com
3 We recommend that you use only the power cord that is supplied with this machine
4 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com
5 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2

Overview
3
3 Overview
The VP-4x4xl is a true 4x4 matrix switcher for computer graphics (up to UXGA)
signals and balanced stereo audio signals. The VP-4x4xl enables the user to
simultaneously route any or all of the four inputs to any or all of the four outputs.
In addition, the VP-4x4xl includes:
A video bandwidth of 300MHz that ensures transparent UXGA performance
Easy-to-connect detachable terminal block connectors on which the audio
signals reside
DC coupled inputs and outputs
A delayed switching mode (ranging from 0 to 3.5sec
1
) for clean
transitions (seamless switching) when switching between non-genlocked
sources
Audio-follow-video and breakaway options
Storing and recalling setup options
A TAKE button for precise switch control that lets you execute multiple
switches all at once
A LOCK button to prevent tampering with the front panel
The ability to automatically detect connected input signals (respective button
illuminates in green)
Control the VP-4x4xl using the front panel buttons, or remotely via:
RS-485 or RS-232 serial commands transmitted by a touch screen system,
PC, or other serial controller
The Kramer RC-IR2 Infra-Red Remote Control Transmitter
An external remote IR receiver (optional), see section 4.1
To achieve the best performance:
Connect only good quality connection cables, thus avoiding 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 Kramer VP-4x4xl
away from moisture, excessive sunlight and dust
4 Your UXGA / Audio Matrix Switcher
Figure 1 illustrates the front and rear panels of the VP-4x4xl. Table 1 and
Table 2 define the front and rear panels of the VP-4x4xl, respectively.
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1 In increments of 0.5sec

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your UXGA / Audio Matrix Switcher
4
Figure 1: VP-4x4xl 4x4 UXGA / Audio Matrix Switcher

Your UXGA / Audio Matrix Switcher
5
Table 1: Front Panel VP-4x4xl 4x4 UXGA / Audio Matrix Switcher Features
# Feature Function
1 IR (Infra-Red) Receiver Signals from the remote control transmitter illuminate the LED
2 POWER Switch Illuminated switch for turning the unit ON or OFF
3 SELECTOR IN Buttons Select the input to switch to the output
1
When a signal is detected, the input button illuminates in green
4 SELECTOR OUT
Buttons Select the output to which the input is switched
5 ALL Button Pressing ALL before pressing an input button connects that input to all
outputs
2
6 OFF Button
Pressing OFF after pressing an output button disconnects that output from the
inputs. To disconnect all the outputs, press the ALL button and then the OFF
button
7 STATUS IN
7-segment
Display
Displays the selected video input switched to the output (marked above each
input). Also displays the number of IN and OUT ports
3
8
VIDEO
STATUS OUT
Labels Identifies a cross point between each video output to which the video input displayed below it is connected
9 STATUS OUT
Labels Identifies a cross point between each audio output to which the audio input displayed below it is connected
10
STATUS
AUDIO
STATUS IN
7-segment
Display
Displays the selected audio input switched to the output (marked above each
input). Also displays the firmware version number and the MACHINE #
3
11 VID Button When illuminated
4
actions relate to video
12 AFV Button When illuminated, the audio channels follow the video channels. The button is
illuminated when the AFV mode is selected
13 AUD Button When illuminated
5
actions relate to audio
14 STO Button Pressing STO (STORE) followed by an output button stores the current
setting
6
15 RCL Button Pressing RCL (RECALL) followed by an output button displays a stored
setup. Pressing the RCL button again implements the new status
16 TAKE Button Pressing TAKE toggles the mode between the CONFIRM mode
7
and the AT
ONCE mode (user confirmation per action is unnecessary). When in
CONFIRM mode, actions are confirmed by pressing the TAKE key
17 LOCK Button Disengages the front panel switches
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1 The SELECTOR IN and OUT buttons also store/recall the input/output configurations (see section 7.5)
2 For example, press ALL and then Input button # 2 to connect input # 2 to all the outputs
3 Refer to section 7.1
4 The VID button is illuminated when in breakaway mode and actions relate to video
5 The AUD button is illuminated when in breakaway mode and actions relate to audio
6 For example, press STO and then the Output button # 3 to store in Setup # 3
7 When in the CONFIRM mode, the TAKE button illuminates

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your UXGA / Audio Matrix Switcher
6
Table 2: Rear Panel VP-4x4xl 4x4 UXGA / Audio Matrix Switcher Features
# Feature Function
18 INPUT HD15F Connectors Connects to the VGA/XGA video sources (from 1 to 4)
19 AUDIO INPUTS Terminal
Block Connectors Connects to the balanced stereo audio sources (from 1 to 4)
20 OUTPUT HD15F Connectors Connects to the VGA/XGA video acceptors (from 1 to 4)
21 AUDIO OUTPUTS Terminal
Block Connectors Connects to the balanced stereo audio acceptors (from 1 to 4)
22 FLASH PROG. Button Push in for “Program” to upgrade to the latest Kramer firmware (see
section 8), or release for Normal (the factory default)
23 RS-485 Terminal Block Port Pins B (-) and A (+) are for RS-485; Pin G (Ground) may be connected to
the shield of the cable if desired (see the PINOUT in Figure 7)
24 RS-232 DB 9F Port Connects to the PC or the Remote Controller
25 REMOTE IR opening
1
Connects to an external IR receiver unit for controlling the machine via
an IR remote controller (instead of using the front panel IR receiver)
2
26 DELAY Dipswitches Dipswitches for setting the delay time
27 Setup Dipswitches Dipswitches for setup of the unit (DIP1, DIP 2 and DIP 3 are for setting
the machine #; DIP 4 is for RS-485 Termination)
28 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 receiver
3
.
The external IR receiver can be located 15 meters away from the machine.
This distance can be extended to up to 60 meters when used with three
extension cables
4
.
Before using the external IR receiver, be sure to arrange for your Kramer
dealer to insert the internal IR connection cable
5
with the 3.5mm connector
that fits into the REMOTE IR opening on the rear panel.
Connect the external IRreceiver to the REMOTE IR 3.5mm connector.
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1 Covered by a cap. The 3.5mm connector at the end of the internal IR connection cable fits through this opening
2 Optional. Can be used instead of the front panel (built-in) IR receiver to remotely control the machine (only if the internal
IR connection cable has been installed)
3 Model: C-A35M/IRR-50
4 Model: C-A35M/A35F-50
5 P/N: 505-70434010-S

Installing the VP-4x4xl on a Rack
7
5 Installing the VP-4x4xl on a Rack
This section describes what to do before installing on a rack and how to rack
mount.
Before installing on a rack, be sure that the environment is
within the recommended range:
Operating temperature range +5 to +45 Deg. Centigrade
5 to 65% RHL, non-condensing
-20 to +70 Deg. Centigrade
5 to 95% RHL, non-condensing
Operating humidity range
Storage temperature range
Storage humidity range
When installing on a 19" rack, avoid hazards by taking
care that:
It is located within the recommended environmental
conditions, as the operating ambient temperature of a
closed or multi unit rack assembly may exceed the
room ambient temperature.
Attach both ear brackets to the
machine. To do so, remove the
screws from each side of the machine
(3 on each side), and replace those
screws through the ear brackets.
Place the ears of the machine
against the rack rails, and insert the
proper screws (not provided) through
each of the four holes in the rack
ears.
Note that:
Detachable rack ears can be removed
for desktop use
Always mount the machine in the rack
before you attach any cables or
connect the machine to the power
If you are using a Kramer rack adapter
kit (for a machine that is not 19"), see
the Rack Adapters user manual for
installation instructions (you can
download it at:
http://www.kramerelectronics.com)




In some models, the front panel
may feature built-in rack ears
Once rack mounted, enough air will still flow around the
machine.
The machine is placed straight in the correct horizontal
position.
You do not overload the circuit(s). When connecting
the machine to the supply circuit, overloading the
circuits might have a detrimental effect on overcurrent
protection and supply wiring. Refer to the appropriate
nameplate ratings for information. For example, for
fuse replacement, see the value printed on the product
label.
The machine is earthed (grounded) in a reliable way
and is connected only to an electricity socket with
grounding. Pay particular attention
and that you use only the power cord that is
supplied with the machine.
to situations where
electricity is supplied indirectly (when the power cord is
not plugged directly into the socket in the wall), for
example, when using an extension cable or a power
strip,

CAUTION!!
Before Installing on a Rack
How to Rack Mount
To rack-mount a machine:
1
1
2
2
3
4
5

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VP-4x4xl 4x4 UXGA / Audio Matrix Switcher
8
6 Connecting the VP-4x4xl 4x4 UXGA / Audio Matrix Switcher
This section describes how to:
Connect the VP-4x4xl rear panel (see section 6.1)
Connect a balanced stereo audio input/output (see section 6.2)
Connect the VP-4x4xl to a controlling device via RS-232 (see section 6.3)
Connect several VP-4x4xl machines (see section 6.4)
Set the dipswitches (see section 6.5)
6.1 Connecting the VP-4x4xl Rear Panel
To connect
1
the VP-4x4xl, as illustrated in the example in Figure 2, do the
following
2
:
1. Connect up to four VGA/XGA computer graphics sources to the HD15F
INPUT connectors (from INPUT 1 to INPUT 4).
2. Connect up to four balanced
3
stereo audio sources (for example, the
audio source of the computer
4
) to the AUDIO INPUT terminal block
connectors (from 1 to 4).
3. Connect the four OUTPUT connectors to up to four VGA/XGA video
acceptors (for example, displays).
4. Connect the four AUDIO OUTPUT terminal block connectors to up to
four balanced stereo audio acceptors
3
(for example, balanced stereo
audio amplifiers with speakers). 
5. Set the dipswitches (see section 6.5).
6. If required, set the switching delay time (see section 6.6)
7. As an option, you can connect a PC and/or controller to the RS-232 port
(see section 6.3) and the RS-485 port (see section 6.4).
8. Connect the power cord
5
.
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1 You do not need to connect all inputs and outputs
2 Switch OFF the power on each device before connecting it to your VP-4x4xl. After connecting your VP-4x4xl, switch on its
power and then switch on the power on each device
3 See section 6.2
4 Alternatively, you can connect a separate audio source (as shown for input 1 in Figure 2), or no source at all
5 We recommend that you use only the power cord that is supplied with this machine

Connecting the VP-4x4xl 4x4 UXGA / Audio Matrix Switcher
9
Figure 2: Connecting the VP-4x4xl 4x4 UXGA / Audio Matrix Switcher

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VP-4x4xl 4x4 UXGA / Audio Matrix Switcher
10
6.2 Connecting the Balanced/Unbalanced Stereo Audio Input/Output
This section illustrates how to wire:
A balanced input/output connection (see Figure 3)
An unbalanced audio output (see Figure 4)
An unbalanced source to the balanced input on the VP-4x4xl (see Figure 5)
Figure 3 illustrates how to wire a balanced input/output connection (for
example, audio INPUT 1 or AUDIO OUTPUT 1):
+
-
G
+
-
L1
R1
Figure 3: Connecting the Balanced Stereo Audio Input/Output
Figure 4 illustrates how to wire an unbalanced acceptor to the balanced output
of the unit (for example, AUDIO OUTPUT 1):
+ - G + -
L1
R1
Figure 4: Connecting the Unbalanced Stereo Audio Output
Figure 5 illustrates how to connect an unbalanced source to the balanced input
on the VP-4x4xl (for example, AUDIO INPUT 1):
+ - G + -
L1
R1
Figure 5: Connecting an Unbalanced Source to the Balanced Input

Connecting the VP-4x4xl 4x4 UXGA / Audio Matrix Switcher
11
6.3 Connecting a PC
To connect a PC to the VP-4x4xl unit, using the Null-modem adapter
provided with the machine (recommended):
Connect the RS-232 DB9 rear panel port on the Master VP-4x4xl unit to
the Null-modem adapter and connect the Null-modem adapter with a
9-wire flat cable to the RS-232 DB9 port on your PC
To connect a PC to the VP-4x4xl unit, without using a Null-modem adapter:
Connect the RS-232 DB9 port on your PC to the RS-232 DB9 rear panel
port on the Master VP-4x4xl unit, as Figure 6 illustrates
Female DB9 (From PC)
PIN 4 Connected to PIN 6
PINS 8, 7, 1 Connected together
If a Shielded cable is used, connect the shield to PIN 5
PIN 5 Connected to PIN 5 (Ground)
PIN 3 Connected to PIN 2
PIN 2 Connected to PIN 3
Male DB9
Figure 6: Connecting a PC without using a Null-modem Adapter
6.4 Cascading Machines
You can cascade up to eight VP-4x4xl units with control from a PC or serial
controller.
To cascade up to eight individual VP-4x4xl units via RS-485, as illustrated in
the example in Figure 7, do the following:
1. Connect the sources and acceptors (see section 6.1).
2. Connect the RS-232 port of the first VP-4x4xl unit to a PC using the Null-
modem adapter provided with the machine (see section 6.3).
3. Connect the RS-485 terminal block port on the first unit to the RS-485 port on
the second VP-4x4xl unit and so on, connecting all the RS-485 ports.
4. Set the dipswitches, as section 6.5 describes:
Set the first VP-4x4xl unit as Machine # 1 and the following seven
VP-4x4xl units as Machine # 2 to Machine # 8, according to Table 4
Set DIP 4 ON on the first and last VP-4x4xl units (terminating the
RS-485 line at 120). Set DIP 4 OFF on the other VP-4x4xl units

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VP-4x4xl 4x4 UXGA / Audio Matrix Switcher
12
Machine # 1 (= Master)
Machine # 2
Machine # 8
1
OFF
ON
23
Up to 8
Units
RS-485
AB G
RS-485 PINOUT
G
B
A
_
+
1
OFF
ON
2 3
1
OFF
ON
2 3
Figure 7: Control Configuration via RS-232 and RS-485

Connecting the VP-4x4xl 4x4 UXGA / Audio Matrix Switcher
13
6.5 Dipswitch Settings
The VP-4x4xl includes a set of four dipswitches
1
, as Figure 8 and Table 3
define:
1
OFF
ON
2 3
Figure 8: VP-4x4xl Dipswitches
Table 3: Dipswitch Settings
DIPS
Function Description
1, 2, 3
Machine # Determines the number of the machine in the sequence
4 RS-485 Term ON for RS-485 line termination
2
with 120
OFF for no RS-485 line termination
The machine # determines the position of a VP-4x4xl unit when cascading
units (see section 6.4). Set dipswitches 1, 2 and 3 according to Table 4:
Table 4: Machine # Dipswitch Settings
Machine # DIP 1 DIP 2 DIP 3
1
Master
OFF OFF OFF
2 OFF OFF ON
3 OFF ON OFF
4 OFF ON ON
5 ON OFF OFF
6 ON OFF ON
7 ON ON OFF
8 ON ON ON
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1 By default these dipswitches are set to OFF
2 When cascading machines, set dipswitch 4 to ON for the first and last units only (otherwise, set dipswitch 4 to OFF)

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VP-4x4xl 4x4 UXGA / Audio Matrix Switcher
14
6.6 Setting the Delay
You can achieve clean transitions when switching between non-genlocked
sources by setting the delay time—ranging from 0sec to 3.5sec
1
—via the
DELAY dipswitches, as Table 5 defines. The VP-4x4xl unit is shipped (its
factory default state) with no delay, that is, the DELAY dipswitches are set to
OFF for a 0sec delay.
Table 5: DELAY Dipswitch Settings
sec DIP 1 DIP 2 DIP 3
0
default
OFF OFF OFF
0.5 OFF OFF ON
1.0 OFF ON OFF
1.5 OFF ON ON
2.0 ON OFF OFF
2.5 ON OFF ON
3.0 ON ON OFF
3.5 ON ON ON
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1 In increments of 0.5sec

Operating Your Audio Matrix Switcher
15
7 Operating Your Audio Matrix Switcher
You can operate your VP-4x4xl via:
The front panel buttons
RS-232 serial commands transmitted by a touch screen system, PC, or
other serial controller
The IR remote control
7.1 Displaying Unit Characteristics
The STATUS VIDEO and AUDIO 7-segment displays show three sets of
information, as defined in Table 6:
Table 6: STATUS 7-segment Display
The STATUS Display Shows: When:





1 12 23
3
4
4
STATUS
OUT
IN
AUDIO
VIDEO
The machine name
Machine name Immediately (and
automatically) after switching
on the power
When simultaneously pressing, for 3
seconds, the 3 “IN” buttons 1, 2 and
3





1
Number 1 indicates the
MACHINE #
Number 10 indicates the
firmware version #
1 12 23
3
4
4
STATUS
OUT
IN
AUDIOVIDEO
Unit characteristics:
Firmware version
Machine number
Immediately after the “First Display”



2
Audio inputs switched to
the outputs
Video inputs switched to
the output
1 12 23
3
4
4
STATUS
OUT
IN
AUDIOVIDEO
Normal display:
Inputs switched to the
outputs
During normal operation, appears a few
seconds after the first and second
displays
3

1 The STATUS shown here is an example of what could typically be displayed. The actual display depends on the current
firmware version and machine number
2 The STATUS shown here is an example of what could typically be displayed. The actual display depends on the current
video and audio switching status
3 The “First Display” and the “Second Display” appear initially one after the other, followed a few seconds later by the
“Normal Display”

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Operating Your Audio Matrix Switcher
16
7.2 Choosing the Audio-Follow-Video or Breakaway Option
You can switch stereo audio signals in one of two ways, either:
Audio-follow-video (AFV), in which all operations and status indicators
relate to both the video and the audio channels
1
; or
Breakaway, in which video and audio channels switch independently
7.2.1 Setting the Audio-Follow-Video Option
To set the Audio-Follow-Video (AFV) option:
1. Press the AFV button.
The AFV button illuminates. The audio will follow the video.
2. If the audio configuration differs from the video configuration, both the Audio
IN STATUS 7-segment displays and the AUD button will blink
2
, and require
reconfiguring for AFV operation.
3. Press the TAKE button to confirm the modification (reconfiguring the audio
according to the video).
7.2.2 Setting the Breakaway Option
To set the Breakaway option:
1. Press either the AUD (for audio control only) or the VID (for video control
only) button.
2. If the AUD button illuminates all switching operations relate to the Audio
section.
3. If the VID button illuminates all switching operations relate to the Video
section.

1 Audio and video connections are the same
2 Warning that changes are about to occur in the audio section

Operating Your Audio Matrix Switcher
17
7.3 Switching OUT-IN Combinations
To switch a video/audio input to a video/audio output, do the following:
1. Press an OUT button
1
.
The corresponding Audio and
2
/or Video IN STATUS 7-segment displays
3
blink.
2. Press an IN button
4
.
The selected input switches to the selected output.
For example, press the ALL button and then IN button # 2 to connect
input # 2 to all the outputs
7.4 Confirming Settings
Choose to work in the AT ONCE or the CONFIRM mode.
In the AT ONCE mode:
You save time
Actions require no user confirmation
Execution is immediate
No protection is offered against changing an action in error
In the CONFIRM mode:
You have an optional method to help avoid making a mistake
Every action requires user confirmation
Execution is delayed
5
until the user confirms the action
Protection is offered to prevent erroneous switching
You can key-in several actions and then confirm them by pressing the
TAKE button once, to simultaneously switch all monitors
Pressing an OUT-IN combination when your VP-4x4xl operates in the AT
ONCE mode implements the switch immediately. When the VP-4x4xl
operates in the CONFIRM mode, press the blinking TAKE button to authorize
the switch.

1 Either 1, 2, 3, 4 or ALL
2 When the audio-follow-video option is active (refer to section 7.2.1)
3 Items 8 and 9, respectively, in Figure 1
4 Either 1, 2, 3, 4 or OFF
5 Failure to press the TAKE button within one minute (the Timeout) will abort the action