Kramer VP-4x8 User manual

Kramer Electronics, Ltd.
USER MANUAL
Model:
VP-4x8
4x8 VGA / UXGA Matrix Switcher

Contents
i
Contents
1 Introduction 1
2 Getting Started 1
2.1 Quick Start 2
3 Overview 3
4 Your VP-4x8 4x8 VGA / UXGA Matrix Switcher 4
4.1 Using the IR Transmitter 8
5 Installing the VP-4x8 in a Rack 9
6 Connecting the VP-4x8 4x8 VGA / UXGA Matrix Switcher 10
6.1 Connecting the VP-4x8 Rear Panel 10
6.2 Controlling via RS-232 (for example, using a PC) 11
6.3 Controlling via RS-485 12
6.4 Control Configuration via the Ethernet Port 13
6.4.1 Connecting the ETHERNET Port directly to a PC (Crossover Cable) 13
6.4.2 Connecting the ETHERNET Port via a Network Hub (Straight-Through Cable) 15
6.4.3 Control Configuration via the Ethernet Port 15
6.5 Setting the Dipswitches 15
6.5.1 Setting the Delay 15
6.5.2 Setting the Machine # Dipswitches 16
6.6 Cascading Machines 16
7 Operating the VP-4x8 4x8 VGA / UXGA Matrix Switcher 18
7.1 Displaying Unit Characteristics 18
7.2 Confirming Settings 19
7.2.1 Toggling between the At Once and Confirm Modes 19
7.2.2 Confirming a Switching Action 19
7.3 Storing/Recalling Input/Output Configurations 20
7.3.1 Storing an Input/Output Configuration 20
7.3.2 Recalling an Input/Output Configuration 20
7.3.3 Deleting an Input/Output Configuration 21
7.4 Locking the Front Panel 21
8 Technical Specifications 22
9 Updating the VP-4x8 Firmware 23
9.1 Updating the Device Firmware 23
9.1.1 Downloading from the Internet 23
9.1.2 Connecting a PC to the RS-232 Port 23
9.1.3 Installing the Device Firmware 24
9.2 Upgrading the Ethernet Firmware 28
9.2.1 Downloading from the Internet 29
9.2.2 Connecting the PC to the RS-232 Port 29
9.2.3 Installing the Ethernet Firmware 29

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Contents
ii
10 Table of Hex Codes for Serial Communication 30
11 Kramer Protocol 2000 31
Figures
Figure 1: VP-4x8 4x8 VGA / UXGA Matrix Switcher– Front and Rear View 5
Figure 2: VP-4x8 Underside View 7
Figure 3: Connecting the VP-4x8 4x8 VGA / UXGA Matrix Switcher 11
Figure 4: Connecting a PC without using a Null-modem Adapter 12
Figure 5: Controlling via RS-485 (for example, using an RC-3000) 13
Figure 6: Local Area Connection Properties Window 14
Figure 7: Internet Protocol (TCP/IP) Properties Window 14
Figure 8: VP-4x8 Dipswitches 15
Figure 9: Control Configuration via RS-232 and RS-485 17
Figure 10: Storing and Recalling using the Input/Output Buttons 20
Figure 11: Splash Screen 24
Figure 12: Atmel – Flip Window 25
Figure 13: Device Selection Window 25
Figure 14: Device Selection Window 26
Figure 15: Loading the Hex 26
Figure 16: RS-232 Window 27
Figure 17: Atmel – Flip Window (Connected) 27
Figure 18: Atmel – Flip Window (Operation Completed) 28
Figure 19: The KFR-Programmer Window 29
Tables
Table 1: Front Panel VP-4x8 4x8 VGA / UXGA Matrix Switcher Features 6
Table 2: Rear Panel VP-4x8 4x8 VGA / UXGA Matrix Switcher Features 6
Table 3: VP-4x8 Underside Panel Features 7
Table 4: Dipswitch Settings 15
Table 5: DELAY Dipswitch Settings 16
Table 6: Machine # Dipswitch Settings 16
Table 7: STATUS 7-segment Display 18
Table 8: VP-4x8 Technical Specifications 22
Table 9: VP-4x8 Hex Codes for Switching via RS-232/RS-485 30
Table 10: Protocol Definitions 31
Table 11: Instruction Codes for Protocol 2000 32

Introduction
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 groups
1
that are clearly
defined by function.
Thank you for purchasing the Kramer VP-4x8 4x8 VGA / UXGA Matrix
Switcher, which is ideal for:
Any professional display system requiring a true 4x8 computer
graphics matrix operation
Multimedia and presentation source, and acceptor selection
Each package includes the following items:
The VP-4x8 4x8 VGA / UXGA Matrix Switcher
Windows
®
-based Kramer control software
2
Windows
®
-based Configuration Manager XPort software and
Com Port Redirector
Kramer RC-IR2 Infrared Remote Control Transmitter (including
the required battery and a separate user manual
3
)
Power cord, null-modem adapter and this user manual
3
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
4
1 GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix Switchers; GROUP 3: Control Systems; GROUP 4:
Format/Standards Converters; GROUP 5: Twisted-Pair Solutions; 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 Downloadable from our Web site at http://www.kramerelectronics.com
3 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com
4 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.

Overview
3
3 Overview
The VP-4x8 is a high-performance, high-resolution computer graphics
video switcher. The VP-4x8 lets you simultaneously route any or all of the
four inputs to any or all of the eight outputs and to loop each input to an
additional output.
The VP-4x8 4x8 VGA / UXGA Matrix Switcher features:
Video bandwidth of 400MHz that ensures transparent performance
even in the most critical applications
12 preset memory locations for quick access to common
configurations
Delayed switching mode (ranging from 0 to 3.5 sec
1
) for clean
transitions (seamless switching) when switching between
non-genlocked sources
DC coupled inputs and outputs
Kr-isp™ advanced sync processing technology, which provides a
sharp, stable image when the sync level is too low, by restoring the
sync signal waveform
A TAKE button that allows you to place multiple switches in a queue
and then activate them simultaneously with one touch of this button
A LOCK button to prevent tampering with the front panel
Automatic detection of connected input signals (respective button
illuminates)
Control the VP-4x8 using the front panel buttons, or remotely via:
RS-485 or RS-232 serial commands transmitted by a PC, touch screen
system, or other serial controller
The Kramer Infrared remote control transmitter
Ethernet
An external remote IR receiver (optional)
The VP-4x8 is a dependable and rugged unit that fits into one vertical space
(1U) of a standard 19-inch professional rack
2
.
1 In increments of 0.5sec
2 The RGBHV signals are connected on 15-pin HD pin connectors to reduce enclosure size

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VP-4x8 4x8 VGA / UXGA Matrix Switcher
4
To achieve the best performance:
Use only good quality connection cables
1
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 Kramer
VP-4x8 away from moisture, excessive sunlight and dust
4 Your VP-4x8 4x8 VGA / UXGA Matrix Switcher
Figure 1, Table 1 and Table 2 define the VP-4x8 4x8 VGA / UXGA Matrix
Switcher.
1 Available from Kramer Electronics on our Web site at http://www.kramerelectronics.com

Your VP-4x8 4x8 VGA / UXGA Matrix Switcher
5
Figure 1: VP-4x8 4x8 VGA / UXGA Matrix Switcher– Front and Rear View

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VP-4x8 4x8 VGA / UXGA Matrix Switcher
6
Table 1: Front Panel VP-4x8 4x8 VGA / UXGA Matrix Switcher Features
# Feature Function
1 IR Receiver The red LED is illuminated when receiving signals from the Infrared
remote control transmitter
2 POWER Switch Illuminated switch for turning the unit ON or OFF
3 IN SELECTOR Buttons Select the input to switch to the output.
When a signal is detected, the input button illuminates in green
4 OUT SELECTOR Buttons Select the output to which the input is switched
5 ALL Button Pressing ALL followed by an INPUT button, connects that input to all
outputs
1
6 OFF Button Press an OUT SELECTOR button and then an OFF button to
disconnect that output from the inputs
Press the ALL button and then the OFF button to disconnect all the
outputs
7 TAKE Button Pressing TAKE toggles the mode between the Confirm mode
2
and
the At Once mode (user confirmation per action is unnecessary)
8 STO (Store) Button Pressing STO followed by an input/output button stores the current
setting
3
9 RCL (Recall) Button Pressing the RCL button and the corresponding IN/OUT button
recalls a setup from the non-volatile memory. The stored status
blinks. Pressing a different IN/OUT button lets you view
4
another
setup. After making your choice, pressing the RCL button again
implements the new status
10 LOCK Button Disengages the front panel switches
11 STATUS 7-segment Display Displays the selected input switched to the output (marked above
each input)
5
Table 2: Rear Panel VP-4x8 4x8 VGA / UXGA Matrix Switcher Features
# Feature Function
12 LOOP 15-pin HD (F) Connectors Connect looped input to output acceptor (1 to 4)
13 INPUT 15-pin HD (F) Connectors Connect to the video sources (from 1 to 4)
14 OUTPUT 15-pin HD (F) Connectors Connect to the output acceptor (from 1 to 8)
15 FLASH PROG Button Push in for “Program” to upgrade to the latest Kramer
firmware (see section 9.1), or release for Normal (the factory
default)
6
16 RS-232 9-pin D-sub (F) Port Connects to the PC or the Remote Controller
17 DELAY Dipswitches Dipswitches for setup of the unit (DELAY dips 1, 2, 3 are for
setting the delay time)
18 SETUP, and RS-485 TERM
Dipswitches
Dipswitches for setup of the unit (SETUP dips 1, 2, 3, 4 are for
setting machine #; 8 is for RS-485 Termination)
19 ETH PROG Button Push in to upgrade ETH firmware, release for normal
operation
1 For example, press ALL and then Input button # 2 to connect input # 2 to all the outputs
2 When in the Confirm mode, the TAKE button illuminates
3 For example, press STO and then the Output button # 3 to store in Setup # 3
4 Only view, nothing is implemented at this stage
5 Also displays the number of IN and OUT ports, the firmware version number, and the MACHINE #. Refer to section 7.1
6 The FLASH PROG “Reset” button is located on the underside of the unit

Your VP-4x8 4x8 VGA / UXGA Matrix Switcher
7
# Feature Function
20 ETHERNET RJ-45 Connector Connects to the PC or other Serial Controller through computer
networking
21 ETH Factory Reset Button Press to reset to factory default definitions
1
:
IP number 192.168.1.39
Mask – 255.255.255.0
Gateway – 192.168.1.1
22 REMOTE IR 3.5mm Mini Jack Connect to an external IR receiver unit for controlling the machine
via an IR remote controller (instead of using the front panel IR
receiver)
2
23 RS-485 Terminal Block Port Pin G is for Ground connection; Pins B (-) and A (+) are for RS-
485
24 Power Connector with Fuse AC connector enabling power supply to the unit
Figure 2 illustrates the underside of the VP-4x8 unit, and Table 3 defines
the underside features.
Figure 2: VP-4x8 Underside View
Table 3: VP-4x8 Underside Panel Features
Feature Function
RESET FOR PROGRAM
Button Press to reset unit prior to firmware upgrade (see section 9.1.3)
1 First disconnect the power cord and then connect it again while pressing the ETH Factory Reset button. The unit will power
up and load its memory with the factory default definitions
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)

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Your VP-4x8 4x8 VGA / UXGA Matrix Switcher
8
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
1
. 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
2
.
Before using the external IR receiver, be sure to arrange for your Kramer
dealer to insert an internal IR connection cable
3
, which is required so that
the REMOTE IR 3.5mm connector can be used. Connect the external IR
receiver to the REMOTE IR 3.5mm connector.
Control the matrix switcher using the front panel buttons, or remotely via
the Kramer RC-IR2 Infrared Remote Control Transmitter, via an external
remote IR receiver (optional), or via RS-485 or RS-232 serial commands
transmitted by a touch screen system, PC, or other serial controller.
1 P/N: C-A35M/IRR-50
2 P/N: C-A35M/A35F-50
3 P/N: 505-70434010-S

Installing the VP-4x8 in a Rack
9
5 Installing the VP-4x8 in a Rack
This section describes how to install the VP-4x8 in a rack.
Before Installing on a Rack How to Rack Mount
Before installing on a rack, be sure that the environment is
within the recommended range:
Operating temperature range +5ºto +45ºC (41ºto 113ºF)
Operating humidity range 10 to 90% RHL, non-condensing
Storage temperature range -20ºto +70ºC (-4ºto 158ºF)
Storage humidity range 5 to 95% RHL, non-condensing

CAUTION!!
When installing on a 19" rack, avoid hazards by taking
care that:
1. 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.
2. Once rack mounted, enough air will still flow around
the machine.
3. The machine is placed straight in the correct
horizontal position.
4. 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.
5. The machine is earthed (grounded) in a reliable way
and is connected only to an electricity socket with
grounding. Pay particular attention 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, and that you use only the power cord that is
supplied with the machine.
To rack-mount a machine:
1. 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.
2. 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:
In some models, the front panel
may feature built-in rack ears
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)

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Connecting the VP-4x8 4x8 VGA / UXGA Matrix Switcher
10
6 Connecting the VP-4x8 4x8 VGA / UXGA Matrix Switcher
This section describes how to:
Connect the VP-4x8 rear panel (see section 6.1)
Connect the VP-4x8 to a controlling device via RS-232 (see
section 6.2), RS-485 (see section 6.3) and/or the Ethernet (see
section 6.4)
Set the dipswitches (see section 6.5)
Connect several VP-4x8 machines (see section 6.6)
6.1 Connecting the VP-4x8 Rear Panel
To connect the VP-4x8 as shown in Figure 3, do the following
1
:
1. Connect up to 4 VGA/UXGA computer graphics sources to the INPUT
connectors
2
.
2. Connect up to 4 VGA/UXGA output acceptors to the LOOP connectors
(local displays or inputs to another cascaded unit).
3. Connect
3
up to 8 output connectors to the VGA/UXGA video acceptors
4
.
4. Set the dipswitches (see section 6.4).
5. Connect a PC and/or controller (if required) to the RS-232 port (see section
6.2) and/or RS-485 port (see section 6.3).
6. Connect the power cord
5
(not shown in Figure 3).
1 Switch OFF the power on each device before connecting it to your VP-4x8. After connecting your VP-4x8, switch on its
power and then switch on the power on each device. DO NOT push in the rear panel Flash Program “Program” button (item 9
in Table 2) and DO NOT push in the underside Flash Program “Reset” button. These are only used for upgrading to the latest
Kramer firmware (see section 9)
2 Not all inputs need to be connected
3 When less than eight outputs are required, connect only those outputs of the VP-4x8 that are required, and leave the other
outputs unconnected
4 Displays or projectors. Not all outputs need to be connected
5 We recommend that you use only the power cord that is supplied with this machine

Connecting the VP-4x8 4x8 VGA / UXGA Matrix Switcher
11
Figure 3: Connecting the VP-4x8 4x8 VGA / UXGA Matrix Switcher
6.2 Controlling via RS-232 (for example, using a PC)
To connect a PC to the VP-4x8 unit, using the null-modem adapter
provided with the machine (recommended):
Connect the null-modem adapter to the RS-232 9-pin D-sub port
on the rear panel of the Master VP-4x8.Connect the null-modem
adapter to the RS-232 9-pin D-sub port on your PC with a 9-wire
flat cable
To connect a PC to the VP-4x8 unit, without using a null-modem adapter:
Connect the RS-232 9-pin D-sub port on your PC to the RS-232
9-pin D-sub rear panel port on the Master VP-4x8 unit, as Figure
4illustrates (depending on whether the PC has a 9-pin or 25-pin
connector)

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VP-4x8 4x8 VGA / UXGA Matrix Switcher
12
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 4: Connecting a PC without using a Null-modem Adapter
6.3 Controlling via RS-485
You can control a VP-4x8 unit via an RS-485 controller, for example, a PC
(equipped with an RS-485 interface) or a Master Programmable Remote
Control system such as the Kramer RC-3000
1
.
To connect an RC-3000 to a VP-4x8 unit (see Figure 5):
1. Connect the RS-485 terminal block port on the RC-3000 to the RS-485 port
on the VP-4x8 unit, as follows:
Connect the “ A” (+) PIN on the RS-485 rear panel
port of the RC-3000 to the “ A” (+) PIN on the
RS-485 rear panel port of the VP-4x8 unit
Connect the “ B” (-) PIN on the RS-485 rear panel
port of the RC-3000 to the “ B” (-) PIN on the
RS-485 rear panel port of the VP-4x8 unit
If shielded twisted pair cable is used, the shield may
be connected to the “ G” (Ground) PIN on one of the
units (for example, on the RC-3000)
2. Set the VP-4x8 unit as Machine # 1, according to Table 6 (that is, DIP 1,
DIP 2, DIP 3, and DIP 4 OFF), and set the other dipswitches on the VP-4x8
unit, as follows:
Set DIP 5, DIP 6, and DIP 7 OFF
Set DIP 8 ON (for RS-485 Line Termination with
120)
1 Previously known as the VS-3000

Connecting the VP-4x8 4x8 VGA / UXGA Matrix Switcher
13
Figure 5: Controlling via RS-485 (for example, using an RC-3000)
6.4 Control Configuration via the Ethernet Port
You can connect the VP-4x8 via the Ethernet, using a crossover cable (see
section 6.4.1) for direct connection to the PC or a straight through cable (see
section 6.4.2) for connection via a network hub or network router
1
.
6.4.1 Connecting the ETHERNET Port directly to a PC (Crossover Cable)
You can connect the Ethernet port of the VP-4x8 to the Ethernet port on
your PC, via a crossover cable with RJ-45 connectors.
This type of connection is recommended for identification of the factory default
IP Address of the VP-4x8 during the initial configuration
After connecting the Ethernet port, configure your PC as follows:
1. Right-click the My Network Places icon on your desktop.
2. Select Properties.
3. Right-click Local Area Connection Properties.
1 After connecting the Ethernet port, you have to install and configure your Ethernet Port and also install the COM Port
Redirector. For detailed instructions, see the “ Ethernet Configuration (Lantronix) guide.pdf” file in the technical support
section on our Web site: http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VP-4x8 4x8 VGA / UXGA Matrix Switcher
14
4. Select Properties.
The Local Area Connection Properties window appears.
5. Select the Internet Protocol (TCP/IP) and click the Properties Button (see
Figure 6).
Figure 6: Local Area Connection Properties Window
6. Select Use the following IP Address, and fill in the details as shown in
Figure 7.
7. Click OK.
Figure 7: Internet Protocol (TCP/IP) Properties Window

Connecting the VP-4x8 4x8 VGA / UXGA Matrix Switcher
15
6.4.2 Connecting the ETHERNET Port via a Network Hub (Straight-Through
Cable)
You can connect the Ethernet port of the VP-4x8 to the Ethernet port on a
network hub or network router, via a straight-through cable with RJ-45
connectors.
6.4.3 Control Configuration via the Ethernet Port
To control several units via the Ethernet, connect the Master unit
(MACH NO. 1) via the Ethernet port to the LAN port of your PC. Use your
PC initially to configure the settings (see section 6.4).
6.5 Setting the Dipswitches
By default, all dipswitches are set to OFF. Figure 8 illustrates the VP-4x8
dipswitches:
Figure 8: VP-4x8 Dipswitches
Table 4: Dipswitch Settings
DIPS Function Description
1, 2, 3 DELAY Determines switching delay time
4, 5, 6, 7 Machine # Determines the number of the machine in the sequence
8 RS-485 TERM ON for RS-485 line termination with 120;
OFF for no RS-485 line termination
6.5.1 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-4x8 unit is shipped (its
factory default state) with no delay, that is, the DELAY dipswitches are set up
for a 0 sec delay.
1 In increments of 0.5sec

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VP-4x8 4x8 VGA / UXGA Matrix Switcher
16
Table 5: DELAY Dipswitch Settings
sec DIP 1 DIP 2 DIP 3
0 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
6.5.2 Setting the Machine # Dipswitches
The Machine # determines the address of a VP-4x8 unit, specifying which
VP-4x8 unit is being controlled when several VP-4x8 units are connected to
a PC or serial controller. Set the Machine # on a VP-4x8 unit via MACH#
DIPS 4, 5, 6 and 7, according to Table 6.
When using a standalone VP-4x8 unit, set the Machine # to 1. When
connecting more than one VP-4x8 unit, set the first machine (the Master)
that is closest to the PC, as Machine # 1 (dipswitches are set to OFF).
Table 6: Machine # Dipswitch Settings
Mach. # DIP 4 DIP 5 DIP 6 DIP 7 Mach. # DIP 4 DIP 5 DIP 6 DIP 7
1 OFF OFF OFF OFF 9 ON OFF OFF OFF
2 OFF OFF OFF ON 10 ON OFF OFF ON
3 OFF OFF ON OFF 11 ON OFF ON OFF
4 OFF OFF ON ON 12 ON OFF ON ON
5 OFF ON OFF OFF 13 ON ON OFF OFF
6 OFF ON OFF ON 14 ON ON OFF ON
7 OFF ON ON OFF 15 ON ON ON OFF
8 OFF ON ON ON 16 ON ON ON ON
6.6 Cascading Machines
You can cascade up to 16 VP-4x8 units with control from a PC or serial
controller (see Figure 9).
To cascade up to 16 individual VP-4x8 units via RS-485, do the following:
1. Connect the VGA/UXGA sources and acceptors, as section 6.1 describes.
2. Connect the RS-232 port
1
on the first VP-4x8 unit to the PC using the null-
modem adapter provided with the machine (recommended), as section 6.2
describes.
1 Alternatively, the RS-485 port could be used for PC control (instead of RS-232)

Connecting the VP-4x8 4x8 VGA / UXGA Matrix Switcher
17
3. Connect the RS-485 terminal block port on the first unit to the RS-485 port
on the second VP-4x8 unit and so on, connecting all the RS-485 ports.
4. Set the dipswitches, as section 6.4 describes:
Set the first VP-4x8 unit as Machine # 1 and the
following 15 VP-4x8 units as Machine # 2 to
Machine # 16, according to Table 6
Set DIP 8 ON on the first and last VP-4x8 units
(terminating the RS-485 line at 120). Set DIP 8
OFF on the other VP-4x8 units
Set DIP 5, DIP 6 and DIP 7 OFF on all VP-4x8
units
Figure 9: Control Configuration via RS-232 and RS-485