Black Box KV2304A User manual

Chapter
Control up to four computer systems and share
peripherals among them.
KV2004A supports one video head per channel, KV2204A supports
two, KV2304A supports three, and KV2404A supports four.
ServSwitch Wizard DVI DL
KV2004A KV2304A
KV2204A KV2404A
Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S. call 724-746-5500) •
FREE technical support 24 hours a day, 7 days a week: Call 877-877-2269 or fax [phone] •
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018 •
Web site: www.blackbox.com • E-mail: [e-mail]
Customer
Support
Information

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ServSwitch Wizard DVI DL
Trademarks Used in this Manual
Black Box and the Black Box logo type and mark are registered trademarks of Black Box Corporation.
ServSwitch Wizard is a trademark of BB Technologies, Inc.
Apple and Mac are registered trademarks of Apple Computer, Inc.
IBM is a registered trademark of International Business Machines Corporation.
Linux is a registered trademark of Linus Torvalds.
Windows is a registered trademark of Microsoft Corporation.
Sun is a registered trademark of Sun Microsystems, Inc.
Unix is a registered trademark of UNIX System Laboratories, Inc.
Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark
owners.
We‘re here to help! If you have any questions about your
application or our products, contact Black Box Tech Support
at 877-877-2269 or visit blackbox.com. You’ll be live
with one of our technical experts in less than 60 seconds.

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FCC and IC RFI Statements
Federal Communications Commission and Industry Canada Radio Frequency Interference
Statements
This equipment generates, uses, and can radiate radio-frequency energy, and if not installed and used properly,
that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio
communication. It has been tested and found to comply with the limits for a Class A computing device in
accordance with the specifications in Subpart B of Part 15 of FCC rules, which are designed to provide
reasonable protection against such interference when the equipment is operated in a commercial environment.
Operation of this equipment in a residential area is likely to cause interference, in which case the user at his own
expense will be required to take whatever measures may be necessary to correct the interference.
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
This digital apparatus does not exceed the Class A limits for radio noise emission from digital apparatus set out
in the Radio Interference Regulation of Industry Canada.
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites applicables aux
appareils numériques de la classe A prescrites dans le Règlement sur le brouillage radioélectrique publié par
Industrie Canada.

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ServSwitch Wizard DVI DL
Instrucciones de Seguridad
(Normas Oficiales Mexicanas Electrical Safety Statement)
1. Todas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea
operado.
2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura.
3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas.
4. Todas las instrucciones de operación y uso deben ser seguidas.
5. El aparato eléctrico no deberá ser usado cerca del agua—por ejemplo, cerca de la tina de baño, lavabo, sótano
mojado o cerca de una alberca, etc.
6. El aparato eléctrico debe ser usado únicamente con carritos o pedestales que sean recomendados por el
fabricante.
7. El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante.
8. Servicio—El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las instrucciones
de operación. Todo otro servicio deberá ser referido a personal de servicio calificado.
9. El aparato eléctrico debe ser situado de tal manera que su posición no interfiera su uso. La colocación del
aparato eléctrico sobre una cama, sofá, alfombra o superficie similar puede bloquea la ventilación, no se debe
colocar en libreros o gabinetes que impidan el flujo de aire por los orificios de ventilación.
10. El equipo eléctrico deber ser situado fuera del alcance de fuentes de calor como radiadores, registros de
calor, estufas u otros aparatos (incluyendo amplificadores) que producen calor.
11. El aparato eléctrico deberá ser connectado a una fuente de poder sólo del tipo descrito en el instructivo de
operación, o como se indique en el aparato.
12. Precaución debe ser tomada de tal manera que la tierra fisica y la polarización del equipo no sea eliminada.
13. Los cables de la fuente de poder deben ser guiados de tal manera que no sean pisados ni pellizcados por
objetos colocados sobre o contra ellos, poniendo particular atención a los contactos y receptáculos donde
salen del aparato.
14. El equipo eléctrico debe ser limpiado únicamente de acuerdo a las recomendaciones del fabricante.
15. En caso de existir, una antena externa deberá ser localizada lejos de las lineas de energia.
16. El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de
tiempo.
17. Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u
orificios de ventilación.
18. Servicio por personal calificado deberá ser provisto cuando:
A: El cable de poder o el contacto ha sido dañado; u
B: Objectos han caído o líquido ha sido derramado dentro del aparato;o
C: El aparato ha sido expuesto a la lluvia; o
D: El aparato parece no operar normalmente o muestra un cambio en su desempeño; o
E: El aparato ha sido tirado o su cubierta ha sido dañada.

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Table of Contents
Table of Contents
1. Specifications .............................................................................................................................................................................................................................................6
2. Overview .............................................................................................................................................................................................................................................8
2.1 Introduction ..................................................................................................................................................................................................................................8
2.2 Features............................................................................................................................................................................................................................................8
2.3 What’s Included.........................................................................................................................................................................................................................9
2.4 Additional Items You May Need...................................................................................................................................................................................9
2.5 Hardware Description, Single-Head Version (KV2004A)........................................................................................................................ 10
2.5.1 Front Panel............................................................................................................................................................................................................. 10
2.5.2 Back Panel...............................................................................................................................................................................................................11
2.6 Hardware Description, Multi-Head Versions (KV2204A, KV2304A, and KV2404A).......................................................... 12
2.6.1 Front Panel............................................................................................................................................................................................................. 12
2.6.2 Back Panel.............................................................................................................................................................................................................. 13
3. Installation .......................................................................................................................................................................................................................................... 14
3.1 Mounting ...................................................................................................................................................................................................................................... 14
3.2 Connections............................................................................................................................................................................................................................... 14
3.2.1 User Console ......................................................................................................................................................................................................... 14
3.2.2 Computer Systems ...........................................................................................................................................................................................17
3.2.3 Power In Connection ..................................................................................................................................................................................... 19
3.2.4 Switching Control by Computer ........................................................................................................................................................... 20
3.2.5 Synchronizing Multiple Units................................................................................................................................................................... 21
3.2.6 Managing EDID VIdeo Display Information.................................................................................................................................22
4. Configuration ..........................................................................................................................................................................................................................................23
4.1 Using the Configuration Menu ...................................................................................................................................................................................23
4.2 General Configuration ....................................................................................................................................................................................................... 24
4.2.1 Changing Hotkeys ............................................................................................................................................................................................ 24
4.2.2 Mouse Switching ...............................................................................................................................................................................................25
4.2.3 Miscellaneous Functions.............................................................................................................................................................................25
4.3 Performing Upgrades.........................................................................................................................................................................................................25
5. Operation ..........................................................................................................................................................................................................................................28
5.1 Selecting a Computer........................................................................................................................................................................................................ 28
5.1.1 Select a Computer Using the Front Panel.................................................................................................................................... 28
5.1.2 Select a Computer Using Hotkeys ......................................................................................................................................................29
5.1.3 Select a Computer Using the Mouse Buttons...........................................................................................................................30
5.2 Autoscanning............................................................................................................................................................................................................................ 30
Appendix A. What Is True Emulation?................................................................................................................................................................................................... 32
A.1 Enumerated USB Switching ......................................................................................................................................................................................... 32
A.2 Emulated USB Switching................................................................................................................................................................................................ 32
A.3 True Emulation......................................................................................................................................................................................................................... 32
Appendix B. Default EDID Video Modes.............................................................................................................................................................................................34
Appendix C. Cable Pinouts ............................................................................................................................................................................................................................35
Appendix D. Safety Information.................................................................................................................................................................................................................36

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ServSwitch Wizard DVI DL
1. Specifications
Approvals: CE, FCC
Hardware Compatibility: All computers with USB interfaces
Software Compatibility: Operates with all known software and operating systems including Windows®, Linux®,
Unix®, BSD, all Sun®OS, all Mac®OS, NetWare®, etc.
Connectors: KV2004A: User Console: (1) DVI-I F (dual-link support),
(2) USB Type A F (for keyboard and mouse, emulated),
(2) USB Type A F (for USB 2.0 peripheral support, not emulated),
(1) 3.5-mm audio jack;
Computer Channels: (4) DVI-I F (dual-link support),
(4) USB Type B F,
(5) 3.5-mm stereo jack;
Other: (1) barrel power jack,
(1) RJ-45, 10P10C options port for serial upgrade or RS-232 switching;
KV2204A: User Console: (2) DVI-I F (dual-link support),
(2) USB Type A female (for keyboard and mouse, emulated),
(2) USB Type A F (for USB 2.0 peripheral support, not emulated);
(1) 3.5-mm stereo jack;
Computer Channels: Video: (8) DVI-I F (dual-link support);
(4) USB Type B F;
(5) 3.5-mm stereo jack;
Other: (1) barrel power jack,
(1) RJ-45, 10P10C options port for serial upgrade or RS-232 switching;
KV2304A: User Console: (3) DVI-I F (dual-link support).
(2) USB Type A F (for keyboard and mouse, emulated),
(2) USB Type A F (for USB 2.0 peripheral support, not emulated),
(1) 3.5-mm stereo jack;
Switched USB: (2) USB Type A (USB 2.0, emulated);
Computer channels: (12) DVI-I F (dual-link support),
(4) USB Type B F,
(5) 3.5-mm stereo jacks,
Other: (1) barrel power jack,
(1) RJ-45, 10P10C options port for serial upgrade or RS-232 switching;
KV2404A: User Console: (4) DVI-I F (dual-link support),
(2) USB Type A F (for keyboard and mouse, emulated),
(2) USB Type A female (for USB 2.0 peripheral support, not emulated,
(1) 3.5-mm stereo jack;
Computer Channels: (16) DVI-I F (dual-link support),
(4) USB Type B F,
(5) 3.5-mm stereo jack;
Other: (1) barrel power jack,
(1) RJ-45, 10P10C options port for serial upgrade or RS-232 switching
Operating Temperature: 32 to 104° F (0 to 40° C)

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Chapter 1: Specifications
Power: 2.5-mm DC jack (power adapter included),
Input: 100–240 VAC, 50/60 Hz,
Output: KV2004A: 5-VDC, 2.5-A; KV2204A, KV2304A, KV2404A: 5-VDC, 4-A;
Power consumption: KV2004A: 12.5 watts, KV2204A, KV2304A, KV2404A: 20 watts
Size: KV2004A: 1.6"H x 9.1"W x 4.3"D (4.2 x 23.2 x 11.0 cm);
KV2204A, KV2304A, KV2404A: 4.0"H x 10.3"W x 6.0"D (10.2 x 26.1 x 15.1 cm)
Weight: KV2004A: 1.9 lb. (0.8 kg); KV2204A: 3.1 lb. (1.4 kg)
KV2304A: 3.3 lb. (1.5 kg); KV2404A: 3.5 lb. (1.6 kg)

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ServSwitch Wizard DVI DL
2. Overview
2.1 Introduction
There are four versions of the four-way ServSwitch Wizard™DVI DL, each of which allows a single operator to
control up to four computer systems and share peripherals among them in a very flexible manner. The
KV2004A can support one video head per channel, whereas the slightly larger KV2204A, KV2304A, and
KV2404A units support two, three, and four video heads per channel, respectively.
Thanks to high quality, efficient switching technology, each video head can support dual link digital video at up
to 450 Mpixels per second. In addition to the video performance, these units offer more than just straight
switching between four systems. The KVM, speakers, and two separate USB devices attached to the Wizard DVI
DL units can either be switched in unison, or you can share your peripherals between any of the systems to suit
your current tasks. For instance, you could be creating e-mails on one system, listening to a soundtrack from
another while a third is sending documents to your printer, and a fourth is performing another task with a
different USB peripheral. The ServSwitch Wizard DVI DL front panels make it easy to control which peripherals
should connect to each system.
The ServSwitch Wizard DVI DL units feature True Emulation (see Appendix A), which ensures that the full
characteristics of the connected keyboard and mouse are passed to every system.
2.2 Features
2SPKKVMCOMPUTERKVMSPKUSB1USB2MODEWizardDVIDL
Multiscreen Versions
The ServSwitch Wizard DVI DL includes separate models to support one, two, three, or four video heads per
channel.
Multiple Switching
The attached peripheral devices can be switched collectively to any computer system, or they can be linked to
separate systems to achieve multiple tasks in parallel. Multiple switching can be controlled from the front-panel
buttons, keyboard hotkeys, mouse buttons, or optional 4-button key switch unit. This unit does not support
On-Screen Display (OSD) control.
Digital and Analog Video
The ServSwitch Wizard DVI DL uses DVI-I (Integrated) connectors throughout so that DVI digital or VGA analog
video may be used (VGA requires the use of suitable adapter cables). Do not mix and match analog and digital
inputs at the same time.
True Emulation
Earlier USB KVM switches relied upon standard keyboard and mouse templates to tell each computer system
how to deal with the connected peripherals. The ServSwitch Wizard DVI DL range gathers the true identities of
the connected keyboard and mouse and presents those “real” profiles concurrently to every system. Thus,
specialized keyboards and mice can be fully supported.

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Chapter 2: Overview
Intelligent Display Information
The ServSwitch Wizard DVI DL uses an EDID emulation feature to ensure that all computers are supplied with
the correct information about each connected video display. It supports hybrid DDC routing (DDC is emulated
when not selected and switched through when selected). This enables DDC-CI (DDC Command Interface) to be
supported.
USB Remote Wakeup
The ServSwitch Wizard fully supports the USB Remote Wakeup feature. Any connected computer can go into
sleep mode and be awakened (when its channel is selected) as soon as you press a key or move the mouse.
Note that the computer and peripherals must also support the USB Remote Wakeup feature.
Figure 2-1. Typical application.
2.3 What’s Included
Your package should contain the following items. If anything is missing or damaged, contact Black Box
Technical Support at 877-877-2269 or [e-mail].
• ServSwitch Wizard DVI DL unit (KV2004A) or ServSwitch Wizard DVI DL Multihead unit (KV2204A, KV2304A, or
KV2304A)
• 12.5-watt or 20-watt power adapter and country-specific power cord
• (4) self-adhesive feet
• Quick Install Reference

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ServSwitch Wizard DVI DL
2.4 Additional Items You May Need
• DVI to VGA adapter (FA462)
• Single-link DVI-D to DVI-D video cable (EVNDVI02-XXXX)
• Combined dual-link DVI-I and USB (USB Type A to B) cable (EHN900024U-XXXX)
• Audio cable (EJ110-XXXX)
• Flash upgrade adapter plus standard 9.6-ft. (3-m) patch lead
• For KV2004A: (2) rackmount brackets and (4) screws (RMK2007); For multihead versions: call tech support at
877-877-2269.
2.5 Hardware Description, Single-Head Version (KV2004A)
2.5.1 Front Panel
Figure 2-2 shows the front panel of the ServSwitch Wizard DVI DL. Table 2-1 describes its components.
Figure 2-2. Front panel.
Table 2-1. Front-panel components.
Number Component Description
1 COMPUTER button Press to change to the next computer channel.
2 Indicators The four indicators (KVM, SPK, USB1, USB2) show which peripherals
are switched to the current computer channel or (as you begin
pressing the MODE button) the peripherals that will be switched
during the next press(es) of the COMPUTER button.
The seven-segment numeric display indicates the computer
channel that is currently active.
3 MODE button Press to determine which peripherals should be switched to
another computer channel (will occur when you press the
COMPUTER button).
1 2 3

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Chapter 2: Overview
2.5.2 Back Panel
Figure 2-3 shows the back panel of the ServSwitch Wizard DVI DL. Table 2-2 describes its components.
Figure 2-3. Back panel.
Table 2-2. Back panel components.
Number Component Description
4 Barrel connector Power input or power supply connects here.
5 (2) USB Type A connectors Connect the console’s USB keyboard and mouse to these
connectors.
6 3.5-mm RCA connector User console audio port: Connect optional speakers to this
connector
7 DVI-I connector Connect the console’s DVI-I monitor to this port.
8 RJ-45 port *Options port: This 10p10c port is used to update the
internal firmware when necessary by connectng to a
computer.
9 (4) USB Type B connectors Connect to the computer’s USB port.
10 (4) 3.5-mm RCA connectors Computer audio port: connect to the computer’s audio
output socket, or sound card.
11 (4) DVI-I connectors Connect to the computer’s video output or graphics card.
12 (2) USB Type A connectors Connect to USB 2.0 peripheral devices.
*NOTE: The OPTIONS port uses a 10p10c socket, which can accommodate both 10p10c connectors as well as
the much more common 8p8c connectors, which are used on Ethernet leads and patch cables. The
pin-outs for both types of connectors are listed in Appendix C.

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ServSwitch Wizard DVI DL
2.6 Hardware Description, Multihead Versions (KV2204A, KV2304A, and KV2404A)
2.6.1 Front Panel
Figure 2-4 shows the front panel of the ServSwitch Wizard DVI DL, multihead versions. Table 2-2 describes its
components.
1 2 3
Figure 2-4. Front panel.
Table 2-3. Front-panel components.
Number Component Description
1 COMPUTER button Press to change to the next computer channel.
2 Indicators The four indicators (KVM, SPK, USB1, USB2) show which peripherals
are switched to the current computer channel or (as you begin
pressing the MODE button) the peripherals that will be switched
during the next press(es) of the COMPUTER button.
NOTE: The multiscreen versions also include four additional
indicators, labeled V1 to V4, that show the video channels
being switched.
The seven-segment numeric display indicates the computer
channel that is currently active.
3 MODE button Press to determine which peripherals should be switched to
another computer channel (will occur when you press the
COMPUTER button).

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Chapter 2: Overview
2.6.2 Back Panel
Figure 2-5 shows the back panel of the ServSwitch Wizard DVI DL. Table 2-4 describes its components.
Figure 2-5. Back panel.
Table 2-4. Back panel components.
Number Component Description
4 Barrel connector Power input or power supply connects here.
5 (2) USB Type A connectors Connect the console’s USB keyboard and mouse to these
connectors.
6 3.5-mm RCA connector User console audio port: Connect optional speakers to this
connector.
7 (4) DVI-I connectors Connect the console’s DVI-I monitor to this port.
8 RJ-45 port Options port: This 10p10c port is used to update the
internal firmware when needed by connectng to a computer.
9 (4) USB Type B connectors Connect to the computer’s USB port.
10 (4) 3.5-mm RCA connectors Computer audio port: connect to the computer’s audio
output socket, or sound card.
11 (16) DVI-I connectors Connect to the computer’s video output or graphics card.
12 (2) USB Type A connectors Connect to USB 2.0 peripheral devices.

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ServSwitch Wizard DVI DL
3. Installation
3.1 Mounting
There are two main mounting methods:
• Via the (4) supplied self-adhesive rubber feet
• Via optional rackmount brackets (RMK4007 for KV2004A; Call Tech Support for KV2204A, KV2304A, or KV2404A)
Rack brackets:
The optional brackets (plus four screws), enable the unit to be secured within a standard rack slot. See Figure 3-1.
Figure 3-1. Rackmount brackets.
NOTE: Both the Wizard DVI DL unit and its power supply generate heat when in operation and will become
warm to the touch. Do not enclose them or place them in locations where air cannot circulate to cool the
equipment. Do not operate the equipment in ambient temperatures exceeding 104° F (40° C). Do not place
the products in contact with equipment whose surface temperature exceeds 104° F (40° C).
3.2 Connections
Connections do not need to be carried out in the order given within this guide, however, where possible connect
the power as a final step.
3.2.1 User Console
The ports on the user console side of the switch are where you attach the peripherals that will be shared
between the computer systems. Make sure that power is disconnected from the unit.
To connect peripherals to the user console:
1. Position your peripheral devices close together so their cables will easily reach.
2. Keyboard and mouse: Attach the leads from your USB keyboard and mouse to the USB connectors on the
switch that are specifically labeled with keyboard and mouse symbols. The keyboard and mouse will operate in
any of the USB connectors, however, True Emulation is not available on connectors labeled USB1 or USB2. See
Figure 3-2.

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Chapter 3: Installation
Figure 3-2. Connecting the keyboard/mouse to the user console.
NOTE: The unit’s True Emulation feature will read the full characteristics of the keyboard and mouse and will
present those to each connected computer concurrently. This ensures that specialized keyboards and
mice are fully supported.
3. USB devices. Where required, attach the leads from your USB peripherals to the USB connectors labeled
USB1 and USB2. See Figure 3-3.
Figure 3-3. Connecting USB peripherals to the user console.
4. Video monitor(s): DVI-I (integrated) video ports are used throughout to enable digital DVI and/or VGA analog
(via adapter cables) signals to be switched, as required.

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ServSwitch Wizard DVI DL
Single-head units: Attach the lead from the video monitor to the DVI-I connector of the user console area. See
Figure 3-4.
Figure 3-4. Connecting a video monitor to the user console.
NOTE: During initial powerup, the ServSwitch Wizard DVI DL unit will attempt to read the EDID information
from the connected display(s). See Section 3.2.6 for details. Some displays require the EDID function to be
encoded manuallly (see Section 4.2.3 for details).
Multihead units: Attach the lead from each video monitor to a DVI-I connector of the user console area. See
Figure 3-5.
NOTE: On the rear panel of the unit, the connectors at each horizontal level (V1 to V4) will be switched through
to the user console DVI-I connector that is at the same level.
Figure 3-5. Connecting four video monitors to the user console.

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Chapter 3: Installation
5. Audio: Where required, connect the lead from your speakers to the audio connector. See Figure 3-6.
Figure 3-6. Connecting speakers to the user console.
3.2.2 Computer Systems
Each computer system is connected to the Wizard DVI DL unit using up to three cables.
To connect a computer system:
1. Make sure that power is disconnected from the Wizard DVI DL unit and the system to be connected.
2. Use a USB cable (Type A to Type B) to link a USB port on the computer system to the USB port of the
required channel on the rear of the unit.
3. If required, use a stereo audio link cable (3.5-mm jacks at either end) to link the speaker port on the computer
system to the audio port of the required channel on the rear of the unit. See Figure 3-7.
Figure 3-7. Connecting a computer unit to the Wizard DVI DL unit.
4. Single-head units: Use a DVI cable or a VGA to DVI-I adapter cable (if using analog signals) to link the video
output of the computer’s graphic port to the DVI-I port of the required channel on the rear of the unit. See
Figure 3-8.

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ServSwitch Wizard DVI DL
Figure 3-8. Connecting the video output to the DVI-I port.
NOTE: A combined DVI-D and USB (Type A to B) cable is also available for linking computers to the Wizard DVI
DL unit.
During initial powerup, the Wizard DVI DL unit will attempt to read the EDID information from the connected
display(s). See Section 3.2.6 for details.
Multihead units: Use DVI or VGA to DVI-I adapter cables (if using analog signals) to link the video outputs of each
computer to the DVI-I ports on the rear of the unit (see Figure 3-9 and the note below).
Figure 3-9. Connecting mutliple video outputs to the DVI-I ports.
NOTE: On the rear panel of the unit, connectors belonging to the same channel are stacked vertically. The
connectors at each horizontal level (V1 to V4) will be switched through to the user console DVI-I
connector which is at the same level. See Figure 3-10.

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Chapter 3: Installation
Figure 3-10. Vertically stacked connectors linked to the same channels.
3.2.3 Power In Connection
The Wizard DVI DL unit is supplied with either a 12.5 W (single-head version) or 20 W (multihead versions) power
adapter. There is no on/off switch on the unit, so operation begins as soon as the power adapter is connected.
To connect the power adapter:
1. Attach the output lead from the power adapter to the 5V socket on the rear panel of the unit. See Figure 3-11.
Figure 3-11. Connecting the power adapter.

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Page 20
ServSwitch Wizard DVI DL
2. Connect the IEC connector of the supplied country-specific power lead to the power adapter’s connector. See
Figure 3-12.
Figure 3-12. Connecting the power lead to the power adapter’s connector.
3. Connect the power lead to a nearby power outlet.
NOTE: Both the unit and its power supply generate heat when in operation and will become warm to the touch.
Do not enclose them or place them in locations where air cannot circulate to cool the equipment. Do not
operate the equipment in ambient temperatures exceeding 104° F (40° C). Do not place the products in
contact with equipment whose surface temperature exceeds 104° F (40° C).
3.2.4 Switching Control by Computer
The OPTIONS port featured on every ServSwitch Wizard DVI DL enables an external serial input, typically from a
computer, to control the selection of the various channels. For more details about the necessary cable, see
Appendix C.
Upon receipt of the correct code, the ServSwitch Wizard DVI DL switches immediately to the appropriate
channel.
Connecting a computer for remote control:
The cable link from the computer needs to connect the transmit (TXD) line of the computer to the receive (RXD)
input of the Wizard DVI DL and also link the ground terminals (GND) of the two devices. See Appendix C for
details.
To connect a computer remote control:
1. Insert the 8p8c or 10p10c connector of the cable to the OPTIONS port on the rear panel of the unit.
Figure 3-13. Connecting a computer remote control.