Black Box Switch Black Box ServSwitch Wizard VGA USB User Manual

®
®
July 2010  
KV3004A KV3204A  
KV3304A KV3404A  
NETWORK SERVICES  
ServSwitch Wizard VGA (USB)  
Control up to four VGA video-equipped computer  
systems and share peripherals among them.  
KV3004A supports one video head per channel, KV3204A supports two,  
KV3304A supports three, and KV3404A supports four.  
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 724-746-5500 or fax 724-746-0746  
Mailing address: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018  
Customer  
Support  
Information  
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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 oper-  
ate 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 VGA (USB)  
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  
Contents  
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ServSwitch Wizard VGA (USB)  
1. Specifications  
Approvals:  
CE, FCC  
Hardware Compatibility: All computers with VGA analog video and 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:  
Video:  
15-way female D-sub  
Keyboard/Mouse: USB Type A female  
Switched USB:  
Audio:  
USB 2.0 Type A female  
3.5-mm stereo jack  
Other:  
Modular 10p10c for Flash upgrade, sync with other KV3x04A switches  
and RS-232 triggered power switches  
Operating Temperature: 32 to 104°F (0 to 40°C)  
Power:  
2.5mm DC jack (power adapter included)  
Input:  
Output:  
100–240 VAC, 50/60 Hz  
5VDC, 2.5A or 4A  
Consumption: KV3004A:  
12.5 watts  
KV3204A, KV3304A, KV3404A: 20 watts  
Size:  
KV3004A: 1.73"H (1U) x 9.21"W x 4.72"D (4.39 x 23.39 x 11.99 cm)  
KV3204A, KV3304A, KV3404A: 4.375"H (2.5U) x 9.21"W x 4.72"D (11.13 x 23.39 x 11.99 cm)  
Weight:  
KV3004A: 1.87 lb. (0.85 kg);  
KV3204A: 2 lb. (0.91 kg)  
KV3304A: 2.1 lb. (0.95 kg);  
KV3404A: 2.2 lb. (1 kg)  
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Chapter 2: Overview  
2. Overview  
2.1 Introduction  
There are four versions of the four-way ServSwitch Wizard™ VGA (USB), 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 KV3004A can support one video head  
per channel, whereas the slightly larger KV3204A, KV3304A and KV3404A units support two, three and four video heads per  
channel, respectively.  
In addition to impressive VGA video performance, these units offer more than just straight switching between four systems. The  
KVM, speakers and two separate USB devices attached to the ServSwitch Wizard VGA (USB) units can either be switched in uni-  
son, as normal, or you can mix your peripherals between any of the systems to suit your current tasks. For instance, you could be  
creating emails on one system, listening to a soundtrack from another while a third is sending documents to your printer and a  
fourth performing another task with a different USB peripheral. The ServSwitch Wizard VGA (USB) front panels make it straight-  
forward to control which peripherals should connect to each system.  
The ServSwitch Wizard VGA (USB) units feature True Emulation (see Appendix A for more details) which ensures that the full  
characteristics of the connected keyboard and mouse are passed to every system.  
KVM  
SPK  
1
2
Multiple switching  
Multiscreen  
versions  
The ServSwitch  
Wizard VGA  
(USB) range  
includes separate  
models to  
support one,  
two, three or  
four video heads  
per channel.  
The attached peripheral  
devices can be switched  
collectively to any computer  
system, or can be linked to  
separate systems to achieve  
multiple tasks in parallel.  
Multiple switching can be  
controlled from the on-  
screen menu or using the  
front panel buttons.  
Intelligent  
display  
information  
The ServSwitch  
Wizard VGA  
(USB) units  
use our EDID  
Emulation  
feature to  
ensure that all  
computers are  
supplied with  
the correct  
information  
about each  
connected video  
display.  
True Emulation  
Earlier USB KVM switches  
relied upon standard  
COMPUTER  
KVM SPK USB1 USB2  
MODE  
keyboard and mouse  
templates to inform each  
computer system how to  
deal with the connected  
peripherals. The ServSwitch  
Wizard VGA (USB) range  
succeeds in harvesting  
the true identities of the  
connected keyboard and  
mouse and presents those  
‘real’ profiles concurrently  
to every system. Thus,  
specialist keyboards and  
mice can be fully supported.  
USB Remote wakeup  
The USB Remote Wakeup feature is fully supported. 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. The computer and peripherals must  
support the USB Remote Wakeup feature.  
Figure 2-1. Overview of the ServSwitch Wizard VGA (USB).  
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ServSwitch Wizard VGA (USB)  
2.2 Features  
Multiscreen Versions  
The ServSwitch Wizard VGA (USB) 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 on-screen menu or using the front-panel buttons.  
Analog Video  
The ServSwitch Wizard VGA (USB) uses VGA connectors throughout for full compatibility with legacy analog systems.  
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 VGA (USB) 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 support-  
ed.  
Intelligent Display Information  
The ServSwitch Wizard VGA (USB) uses an EDID emulation feature to ensure that all computers are supplied with the correct  
information about each connected video display.  
USB Remote Wakeup  
The ServSwitch Wizard VGA (USB) 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.  
2.3 What‘s Included  
Your package should include the following items. If anything is missing or damaged, contact Black Box at 724-746-5500  
• ServSwitch Wizard VGA (USB) unit  
• Power adapter and power cord  
• (4) Self-adhesive feet  
• CD-ROM containing this user manual in PDF format  
2.4 Additional Items You May Need  
• VGA video cable (P/N: EVNPS06)  
• USB cable (type-A to type-B) not exceeding 15 feet/5m (P/N: USB05)  
• Composite 2-in-1 VGA and USB cable (P/N: EHN810)  
• 3.5mm Audio cable (P/N: EJ110)  
• Flash upgrade adapter (P/N: FA4509F)*  
• (2) 19" rackmount brackets and (4) screws (P/N: RMK2004)*  
* The FA4509F Flash upgrade adapter comes unassembled; refer to Appendix C for pinning. You will also need a standard RJ-  
45 Ethernet Patch Cord to connect the adapter to the KVM switch. Verify the computer’s serial connector first prior to ordering  
as some computers may not have a DB9 connector.  
* The rackmount bracket is compatible with the KV3004A model only  
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Chapter 2: Overview  
2.5 Hardware Description, Single Head Version (KV3004A)  
2.5.1 Front Panel  
Figure 2-1 shows the front panel of the unit. Table 2-2 describes its components:  
COMPUTER  
KVM SPK USB1 USB2  
MODE  
2
3
1
Figure 2-2. Front panel.  
Table 2-1. Front panel components.  
Number  
Component  
COMPUTER button  
Indicators  
Description  
Press to change to the next computer channel.  
1
2
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).  
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ServSwitch Wizard VGA (USB)  
2.5.2 Rear Panel  
Figure 2-3 shows the rear panel of the unit. Table 2-2 describes its components:  
12  
11  
11  
11  
11  
INDOOR  
USE  
ONLY  
USER  
CONSOLE  
USB 1  
USB 2  
4
3
2
1
5V  
2.5A  
USB2.0  
SWITCHED  
OPTIONS  
4
5
6
7
8
9
8
9
8
9
8
9
10  
Figure 2-3. Rear panel.  
Table 2-2. Rear panel components.  
Number  
Component  
Description  
Power input or power supply connects here.  
4
5
6
7
2.5-mm Barrel connector  
(2) USB Type A connectors  
3.5-mm RCA connector  
RJ-45 port  
Connect the consoles USB keyboard and mouse to these connectors.  
User console audio port: Connect optional speakers to this connector.  
*Options port: This top 10p10c port is used to allow external control of channel  
switching and also to update the internal firmware when necessary by connecting to  
a computer.  
8
(4) USB Type B connectors  
Connect to a USB port on each computer.  
9
(4) 3.5-mm RCA connectors Connect to the speaker output socket on each computer (optional connection).  
10  
11  
12  
(2) USB Type A connectors  
(4) VGA connectors  
VGA connector  
Connect to the console's USB 2.0 peripheral devices (optional connection).  
Connect to the video output port of each computer.  
Connect to the console's video monitor  
*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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Chapter 2: Overview  
2.6 Hardware Description, Multi Head Versions (KV3204A, KV3304A, KV3404A)  
2.6.1 Front Panel  
Figure 2-4 shows the front panel of the unit. Table 2-3 describes its components:  
COMPUTER  
KVM SPK USB1 USB2  
MODE  
V1  
V2  
V3  
V4  
2
3
1
Figure 2-4. Front panel.  
Table 2-3. Front panel components.  
Number  
Component  
COMPUTER button  
Indicators  
Description  
1
2
Press to change to the next computer channel.  
The four upper 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 four lower indicators, labeled V1 to V4, 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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ServSwitch Wizard VGA (USB)  
2.6.2 Rear Panel  
Figure 2-5 shows the rear panel of the unit. Table 2-4 describes its components:  
12  
11  
11  
11  
11  
V4  
V3  
V2  
INDOOR  
USE  
ONLY  
V1  
USER  
CONSOLE  
USB 1  
4
3
2
1
5V  
4A  
USB 2  
USB2.0  
SWITCHED  
OPTIONS  
4
5
6
7
8
9
8
9
8
9
8
9
10  
Figure 2-5. Rear panel.  
Table 2-4. Rear panel components.  
Number  
Component  
Description  
Power input or power supply connects here.  
4
5
6
7
2.5-mm Barrel connector  
(2) USB Type A connectors  
3.5-mm RCA connector  
RJ-45 port  
Connect the consoles USB keyboard and mouse to these connectors.  
User console audio port: Connect optional speakers to this connector.  
*Options port: This top 10p10c port is used to allow external control of channel  
switching and also to update the internal firmware when necessary by connectng to  
a computer.  
8
9
(4) USB Type B connectors  
Connect to a USB port on each computer.  
(4) 3.5-mm RCA connectors Connect to the speaker output socket on each computer (optional connection).  
(2) USB Type A connectors Connect to the console's USB 2.0 peripheral devices (optional connection).  
10  
11 (8, 12 or 16) VGA connectors Connect to the video output ports of each computer.  
12 (2, 3 or 4) VGA connectors Connect to the console's video monitors to enable multiple video streams from each  
computer to be switched to up to four video monitors.  
*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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Chapter 3: Installation  
3. Installation  
3.1 Mounting  
There are two main mounting methods:  
• Via the (4) supplied self-adhesive rubber feet  
• Via optional rackmount brackets (KV3004A model only) using RMK4007  
Rack brackets (KV3004A model only)  
The optional brackets (plus four screws), enable the unit to be secured within a standard rack slot. See Figure 3-1.  
IN  
DO  
O
R
USE  
O
N
L
Y
5V  
2.5A  
USER  
CONSO  
LE  
1
4
OPTI  
O
NS  
USB  
USB  
1
2
USB2.0  
SWITCHED  
Figure 3-1. Rackmount brackets (KV3004A only).  
NOTE: Both the ServSwitch Wizard VGA (USB) 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).  
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ServSwitch Wizard VGA (USB)  
3.2 Connections  
Connections do not need to be carried out in the order given within this guide, however, where possible connect the power in as  
a final step.  
3.2.1 User console  
The ports that make up the user console are where you attach the peripherals that will be shared between the computer systems.  
Ensure that power is disconnected from the unit.  
To connect peripherals to the user console  
1 Position your peripheral devices in the vicinity of the unit such that their cables will easily reach.  
2 Keyboard and mouse: Attach the leads from your USB keyboard and mouse to the USB sockets specifically labeled with key-  
board and mouse symbols. The keyboard and mouse will operate in any of the USB sockets, however, True Emulation is not  
available on sockets labelled USB1 or USB2. See Figure 3-2.  
IND  
OO  
USE  
R
O
N
L
Y
5V  
2.5A  
U
C
SER  
ONSO  
LE  
O
PTI  
O
NS  
Figure 3-2. Connecting the keyboard/mouse to the user console.  
3 USB devices: Where required, attach the leads from your USB peripherals to the USB sockets labelled USB1 and USB2. See  
Figure 3-3.  
2
1
USB  
1
SB2.0  
ITCHED  
USB  
2
Figure 3-3. Connecting USB peripherals to the user console.  
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Chapter 3: Installation  
4 Video monitor(s): VGA video ports are used throughout.  
Single screen units: Attach the lead from the video monitor to the VGA connector of the user console area. See Figure 3-4.  
IN  
DO  
O
R
U
SE  
O
N
L
Y
5V  
2.5A  
USER  
CO  
NS  
OLE  
OPTI  
O
NS  
Figure 3-4. Connecting a video monitor to the user console.  
Multiscreen units: Attach the lead from each video monitor to a VGA connector of the user console area. See Figure 3-5.  
INDOOR  
USE  
ONL  
Y
4
3
USER  
CONSOLE  
2
1
OPTIONS  
Figure 3-5. Connecting multiple video monitors to the user console.  
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 VGA connector which is at the same level.  
5 Audio: Where required, connect the lead from your speakers to the audio socket. See Figure 3-6.  
IN  
D
O
O
R
U
O
SE  
N
L
Y
5V  
2.5A  
USER  
CONSOLE  
O
PTIONS  
Figure 3-6. Connecting speakers to the user console.  
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ServSwitch Wizard VGA (USB)  
3.2.2 Computer systems  
Each computer system is connected to the ServSwitch Wizard VGA (USB) unit using up to three cables for the KV3004A and up  
to six cables for the KV3204A, KV3304A and KV3404A.  
To connect a computer system  
1 Ensure that power is disconnected from the ServSwitch Wizard VGA (USB) 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. See Figure 3-7.  
2
1
USB  
1
USB2.0  
SWITCHED  
USB  
2
Figure 3-7. Connecting the USB and speaker leads from a computer to the ServSwitch Wizard VGA (USB) 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.  
4 Single screen units: Link the video output of the computer’s graphic port to the VGA port of the required channel on the rear  
of the unit. See Figure 3-8.  
2
1
USB  
1
USB2.  
0
SWITCHED  
USB  
2
Figure 3-8. Connecting the video lead  
from a computer to a VGA input port.  
During initial power up, the Wizard unit will attempt to read the EDID information from the connected display(s). See Section  
3.2.6 for details.  
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Chapter 3: Installation  
Multiscreen units: Link the video outputs of each computer to the VGA ports on the rear of the unit (see note below). See  
Figure 3-9.  
V
V
V
4
3
2
1
4
3
2
1
1
V
U
S
B
1
C
H
0  
E
U
S
B
2
D
Figure 3-9. Connecting video leads from multiple computers to the VGA input ports.  
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 VGA connector which is at the same level. See  
Figure 3-10.  
V4  
INDOOR  
USE  
ONLY  
V3  
V2  
V1  
USER  
CONSOLE  
USB  
1
4
3
2
1
5V  
4A  
USB  
2
USB2.0  
SWITCHED  
OPTIONS  
Channel 4  
Channel 3  
Channel 2  
Channel 1  
Figure 3-10. How the video inputs on the channels are directed to the video outputs in the User Console section  
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ServSwitch Wizard VGA (USB)  
3.2.3 Power in connection  
The ServSwitch Wizard VGA (USB) unit is supplied with either a 12.5W (single screen version) or 20W (Multiscreen versions)  
power adapter. There is no on/off switch on the unit, so operation begins as soon as a power adapter is connected.  
To connect the power supply  
1 Attach the output lead from the power adapter to the 5V socket on the rear panel of the unit. See Figure 3-11.  
IND  
O
OR  
U
O
SE  
N
L
Y
5V  
2.5A  
USE  
CO  
R
NSOLE  
4
O
PTIONS  
Figure 3-11. Attaching the power adapter lead to the power input socket.  
2 Connect the IEC connector of the supplied country-specific power lead to the socket of the power adapter. See Figure 3-12  
Figure 3-12. Attaching the IEC connector of the power lead to the adapter.  
3 Connect the power lead to a nearby main supply socket.  
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 tem-  
peratures exceeding 104° F (40° C). Do not place the products in contact with equipment whose surface temperature exceeds  
104° F (40° C).  
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Chapter 3: Installation  
3.2.4 Channel switching by external control  
The OPTIONS port allows external control of the current channel by commands sent either via RS-232 serial input or by switching  
one of the four channel select input lines. For more details about the necessary RS-232 serial cable, see Appendix C.  
3.2.4.1 OPTIONS port pinout  
The OPTIONS port can accept either 8p8c or 10p10c connectors, as required. See Figure 3-13.  
8p8c 10p10c Signal  
1
2
Channel select input 1  
1
10  
1
2
3
4
5
6
7
8
5VDC power output (100mA max)  
GND reference for all signals  
RS232 (RXD) data receive  
3
4
5
RS232 auxiliary data transmit (reserved)  
RS232 auxiliary data receive (reserved)  
RS232 (TXD) data transmit  
Channel select input 2  
6
OPTIONS  
7
8
9
Channel select input 3  
10  
Channel select input 4  
Figure 3-13. Signal and power pin-outs on the OPTIONS port  
To connect a computer or device for remote control  
1 Insert the 8p8c or 10p10c connector of the cable to the OPTIONS port on the rear panel of the unit. See Figure 3-14.  
USER  
CO  
NSOLE  
4
O
PTIONS  
Figure 3-14. Link cable to the OPTIONS port on the rear panel.  
2 Connect the other end of the cable to a vacant serial port on the computer or to the output of the switching device.  
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ServSwitch Wizard VGA (USB)  
3.2.4.2 Control by RS-232 serial  
Where the external control is via RS-232 signal, ensure that the configuration menu option O is set to 1 or 3 to enable RS-232  
control.  
Serial port parameter settings  
Ensure that the chosen serial port is configured to the following:  
• Baud rate:  
• Data bits:  
• Stop bit:  
• Parity:  
To match setting of B option in the Configuration menu (default is 1200).  
8
1
None  
Serial port channel selection codes  
ASCII  
Character  
Hex  
Decimal  
49  
• Channel 1:  
• Channel 2:  
• Channel 3:  
• Channel 4:  
‘1’  
‘2’  
‘3’  
‘4’  
0x31  
0x32  
0x33  
0x34  
50  
51  
52  
Note: As each channel is chosen using the above RS-232 commands, the peripherals that will be transferred are determined by  
the current setting of the switching mode.  
3.2.4.3 Control by channel select input lines  
Where the external control is via the four channel select input lines of the OPTIONS port (see pin out opposite), ensure that the  
configuration menu option O is set to 3 to enable the input lines.  
The four input lines are suitable for connection to dry contacts or open collector style outputs. Connecting an input line to GND  
will cause the ServSwitch Wizard VGA (USB) to switch all of its functions to the selected channel:  
• Channel 1:  
• Channel 2:  
• Channel 3:  
• Channel 4:  
Channel select input 1 low  
Channel select input 2 low  
Channel select input 3 low  
Channel select input 4 low  
If the input line is held low then all other switching requests by other means will be ignored until the line returns to a high (open)  
state.  
If more than one logic input is low (closed) then the lower channel number takes priority.  
Note: The input lines have only limited protection against over voltage.  
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Chapter 3: Installation  
3.2.5 Synchronizing multiple units  
ServSwitch Wizard VGA (USB) units can be connected together so that they operate in a synchronized manner. Thus, two  
KV3004A units can be made to switch two video heads in a similar manner to an KV3204A. Additionally, two KV3204A units  
could be made to resemble an KV3404A, while two KV3404A units could be combined in order to switch up to eight video  
heads simultaneously.  
Whenever an ServSwitch Wizard VGA (USB) channel is switched, it sends an RS232 command out on its serial interface (marked  
OPTIONS on the rear panel). A ServSwitch Wizard VGA (USB) unit will switch its channel if it receives the same command on its  
serial interface. Consequently, by linking the serial interfaces, a master unit may be made to automatically switch one or more  
slave units as shown in Figure 3-15.  
It should be noted that the synchronization cable deliberately does not have the transmit pin of the Slave End connector linked to  
the receive pin of the Master End connector. To do so would cause the Slave unit to be able to switch the Master unit. This would  
setup an endless cyclical switching sequence that would prevent the ServSwitch Wizard VGA (USB) devices from operating cor-  
rectly. For more details about the serial synchronization cables, see Appendix C.  
Master unit  
INDOOR  
USE  
ONLY  
USER  
CONSOLE  
USB  
USB  
1
2
4
3
2
1
5V  
2.5A  
Serial  
synchronization  
cable  
USB2.0  
OPTIONS  
SWITCHED  
Slave unit  
INDOOR  
USE  
ONLY  
USER  
CONSOLE  
USB  
1
2
4
3
2
1
5V  
USB  
2.5A  
USB2.0  
SWITCHED  
OPTIONS  
Slave  
Master  
monitor  
monitor  
Computers fitted  
with multiple  
video heads  
Figure 3-15. Connections for synchronizing two units  
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ServSwitch Wizard VGA (USB)  
3.2.6 Managing EDID video display information  
Whenever a ServSwitch Wizard VGA (USB) unit is powered on (or when the option F 2 is selected from the configuration menu),  
it will interrogate the connected monitor(s) to determine whether EDID (Extended Display Identification Data) information is avail-  
able. If EDID information is available, it will be copied and used; otherwise a default set of data, stored within the ServSwitch  
Wizard VGA (USB), will be substituted. You can also optionally choose to prevent the unit from seeking new EDID information  
and instead rely only on stored data.  
EDID Emulation  
The ServSwitch Wizard VGA (USB) units use an EDID Emulation feature to ensure that the collected EDID information (up to two  
pages) is correctly supplied to every connected computer, whether it is currently selected or not. See Figure 3-16.  
Display  
4
V4  
INDOOR  
USE  
ONLY  
Display  
3
V3  
Display  
2
V2  
V1  
USER  
CONSOLE  
USB  
1
4
3
2
1
Display  
1
5V  
4A  
USB  
2
USB2.0  
SWITCHED  
OPTIONS  
EDID  
EDID  
EDID  
EDID  
Computer  
Computer  
Computer  
Computer  
Figure 3-16. How EDID information is disseminated across the computers  
3.2.6.1 Refreshing EDID information during use  
You can refresh the EDID information from the connected monitor(s) without the need to power cycle the ServSwitch Wizard  
VGA (USB).  
To refresh EDID information during use  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press F to enter the Functions menu  
3 Press 2 and then Enter.  
4 Press E and then Enter to exit the menu.  
3.2.6.2 Using stored EDID information only  
You can choose to prevent the unit from interrogating the video display(s) during startup. When you invoke this option, the unit  
will only use the EDID information that it has already stored and pass this on to the connected computers. To revert to interrogat-  
ing the video display, use the F 2 function discussed above.  
To use the stored EDID information at the power up  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press F to enter the Functions menu  
3 Press 3 and then Enter.  
4 Press E and then Enter to exit the menu.  
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Chapter 4: Configuration  
4. Configuration  
4.1 Using the Configuration Menu  
The configuration mode allows you to determine numerous aspects of the ServSwitch Wizard VGA (USB) unit capabilities.  
To use the configuration menu  
During normal use, the seven segment display on the front panel shows the number of the currently selected computer channel.  
From this condition, enter configuration mode as follows:  
1 Press and hold the front panel COMPUTER button for roughly five seconds.  
The display will show: C  
2 On the keyboard, press the letter key for the required menu section, e.g. S (see Table 4-1 for full list of options)  
The display will show the pressed letter.  
3 Press the number of the required setting, e.g.  
4
The display will show the pressed number.  
4 Press Enter to accept the setting and return to the main menu section.  
The display will show: C  
5 You can now continue with your next configuration change (go to step 2), or exit from the configuration menu (see below).  
To exit the configuration menu and save changes  
• Press E and then press Enter to exit and save changes.  
To exit the configuration menu without saving  
• Press either of the front panel buttons.  
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ServSwitch Wizard VGA (USB)  
Table 4-1. Configuration menu options  
Letter  
Number  
Description  
B
Enter the OPTIONS port Baud rate menu  
1
2
3
4
5
6
7
1200 (default)  
2400  
9600  
19200  
38400  
57600  
115200  
F
Enter the Functions menu  
1
2
3
8
Show current firmware version  
Refresh EDID information from the connected video display (default)  
Use the stored EDID at startup, do not interrogate the video display  
Reset configuration to factory defaults ( is displayed momentarily)  
H
Enter the Hotkey menu  
Ctrl + Alt (default)  
Ctrl + Shift  
Alt + Shift  
Right Alt  
1
2
3
4
5
6
7
8
Alt  
Left Ctrl + Alt  
Right Ctrl + Alt  
Hotkeys disabled  
O
Enter the Options port behavior menu  
1
Channel switching via RS-232 serial control (using the baud rate set by the ‘B’ option). Contact  
switching via the Options port disabled. (default)  
2
3
Channel switching via remote. Contact switching disabled (reserved for future use).  
As per 1 but with contact switching enabled.  
P
S
Set a new password for use with the lock mode  
Enter the Switch Mode menu  
All (default)  
KVM + Speaker  
KVM only  
Speaker only  
USB1 only  
1
2
3
4
5
6
USB2 only  
T
Enter the Autoscan Time Delay menu  
Autoscan disabled  
2 seconds  
5 seconds (default)  
7 seconds  
15 seconds  
30 seconds  
1 minute  
5 minutes  
1
2
3
4
5
6
7
8
U
Enter the User Preferences menu  
1
2
7
8
Enable mouse switching (default)  
Disable mouse switching  
Cycle all ports (when using ‘Hotkey + Tab’ or ‘Autoscan’) (default)  
Cycle only active ports (when using ‘Hotkey + Tab’ or ‘Autoscan’)  
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Chapter 4: Configuration  
4.2 General configuration  
4.2.1 Changing hotkeys  
ServSwitch Wizard VGA (USB) units use CTRL and ALT as their standard hotkeys. These can be changed if they clash with other  
software or hardware within the installation.  
To change the hotkeys  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press H to enter the Hotkey menu and then press either:  
1 to choose Ctrl + Alt  
2 to choose Ctrl + Shift  
3 to choose Alt + Shift  
4 to choose Right Alt  
3 Press Enter to accept the setting and return to the main menu section.  
4 Press E and then Enter to exit the menu and save changes.  
4.2.2 Mouse switching  
You can enable or disable mouse switching to suit your installation requirements.  
To enable/disable mouse switching  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press U to enter the User Preferences menu and then press either:  
1 to Enable mouse switching  
2 to Disable mouse switching  
3 Press Enter to accept the setting and return to the main menu section.  
4 Press E and then Enter to exit the menu and save changes.  
4.2.3 OPTIONS port speed  
You can change the speed of the OPTIONS serial port.  
To change the OPTIONS port speed  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press B to enter the Baud rate menu and then press either:  
1 to choose 1200  
2 to choose 2400  
3 to choose 9600  
4 to choose 19200  
3 Press Enter to accept the setting and return to the main menu section.  
4 Press E and then Enter to exit the menu and save changes.  
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ServSwitch Wizard VGA (USB)  
4.2.4 OPTIONS port channel control behavior  
You can determine how the OPTIONS port responds to channel control inputs.  
To define the OPTIONS port behavior  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press O to enter the Options port menu and then press either:  
1 to allow channel switching commands to be received via RS-232 serial signal through the OPTIONS port (see Appendix C for  
cable pin-out details and see Section 3.2.5 Channel switching by external control for command details). The baud rate currently  
set by the B option will be used for the port. Switching commands via the four channel select inputs within the OPTIONS port  
connector are disabled in this mode. Use option 3 if you wish to enable the channel select inputs in addition to RS-232 control.  
3 enables channel switching via RS-232 as per option 1. However, in this mode the four channel select inputs are also enabled.  
3 Press Enter to accept the setting and return to the main menu section.  
4 Press E and then Enter to exit the menu and save changes.  
4.2.5 Switching mode  
Using the configuration menu, you can define a default switching mode. The switching mode determines which peripherals  
(KVM, USB1, USB2 and/or speakers) should be moved to the next computer when it is selected using any of the standard meth-  
ods. Regardless of the default switching mode set here, during use you can always change the mode using either the MODE but-  
ton (on the front panel) or using the additional hotkey press combinations.  
Note: Of the external switching methods, the RS-232 serial signal input will switch the peripherals as defined by the currently  
selected switching mode. However, switching control initiated by the channel select input lines will always switch all of the periph-  
erals to the chosen channel regardless of the switching mode.  
To set the default switching mode  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press S to enter the Switch Mode menu and then press either:  
1 to select All (default)  
2 to select KVM and speaker  
3 to select KVM only  
4 to select Speaker only  
5 to select USB1 only  
6 to select USB2 only  
3 Press Enter to accept the setting and return to the main menu section.  
4 Press E and then Enter to exit the menu and save changes.  
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Chapter 4: Configuration  
4.2.6 Miscellaneous functions  
To refresh EDID information from the monitor  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press F to enter the Functions menu  
3 Press 2 and then Enter.  
4 Press E and then Enter to exit the menu and save changes.  
To use the stored EDID information at the power up  
When you engage this mode, the unit will not interrogate the video display during startup and will instead use the data that are  
stored. To revert to interrogating the video display, use the F 2 function discussed above.  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press F to enter the Functions menu  
3 Press 3 and then Enter.  
4 Press E and then Enter to exit the menu and save changes.  
To reset configuration to factory defaults  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press F to enter the Functions menu  
3 Press 8 and then Enter. The display will show r momentarily.  
4 Press E and then Enter to exit the menu and save changes.  
To show the current firmware version  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press F to enter the Functions menu  
3 Press 1 and then Enter.  
The display will blank for a short while and then the major number of the firmware revision will be shown. The display will  
blank again and then show the first digit of the minor number. Following another blank, the second digit of the minor number  
will be displayed. e.g. <blank> 1 <blank> 0 <blank> 2 <blank> equals v1.02  
4 Press E and then Enter to exit the menu and save changes.  
To set a new password  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press P and then Enter. The display will show  
3 Enter a new password and then Enter. See 5.2 Locking Access to the Computers.  
4 Press E and then Enter to exit the menu and save changes.  
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ServSwitch Wizard VGA (USB)  
4.3 Performing upgrades  
The ServSwitch Wizard VGA (USB) unit is fully upgradable via flash upgrade. Such upgrades require a Windows-based computer  
system to be linked via the OPTIONS port.  
Items required to perform an upgrade  
• Optional upgrade cable (see Appendix C for pin-out specifications).  
• A Windows-based upgrade computer with an RS232 serial port.  
• The latest version of the KVM Firmware Uploader and firmware files for the ServSwitch Wizard VGA (USB) unit (available from  
Black Box Technical Support—call 724-746-5500 or send an e-mail to [email protected]).  
To use the KVM Firmware Uploader utility  
1 Download the latest ServSwitch Wizard VGA (USB) unit KVM Firmware Uploader from Black Box Technical Support and install  
it on a Windows based upgrade computer that will be connected to the ServSwitch Wizard VGA (USB) unit. The files are sup-  
contained files to the same folder on the upgrade computer.  
2 Remove the power supply plug from the rear panel of the unit.  
3 Connect the serial port of the upgrade computer to the OPTIONS port on the rear panel of the unit using the optional upgrade  
cable. There is no need to adjust the computer’s serial port settings as the application will do this automatically.  
4 While powering on or when already powered: Press and hold the COMPUTER and MODE buttons (for up to ten seconds) until  
the numeric indicator shows ’U.  
5 From the folder created/used in step 1, select the KVMUploader file/icon to run the upgrade utility. The KVM Firmware  
Uploader dialog will be displayed:  
Figure 4-1. KVM Firmware Uploader utility screen.  
6 Click the Query Unit button to confirm that communication is possible with the ServSwitch Wizard VGA (USB) unit and to  
establish its firmware details. If successful, the ‘Unit connected’ field should show the name of the ServSwitch Wizard VGA  
(USB) unit and the current firmware will also be listed.  
If the application cannot contact the ServSwitch Wizard VGA (USB) unit, re-check the connection cable and click the  
Advanced... button to check that the correct serial port is being used. Change the serial port within the Advanced... section, if  
necessary.  
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Chapter 4: Configuration  
7 From the main KVM Firmware Uploader dialog, click the Browse... button and select the upgrade file:  
VGAUSB_xxx.txt  
where xxx is the firmware version.  
The upgrade file details will be displayed within the dialog.  
IMPORTANT: Check that the ‘Intended Target Units’ field matches the ‘Unit Connected’ field. If these fields do not match then  
you may have an incorrect upgrade file, check with Black Box Technical Support before proceeding. Check also that the ‘New  
firmware version’ is greater than the ‘Current firmware version’. See Figure 4-2.  
Check that the  
‘Intended Target  
Units’ field  
matches the ‘Unit  
Connected’ field.  
Check also that  
the ‘New firmware  
version’ is greater  
than the ‘Current  
firmware version’.  
Figure 4-2. KVM Firmware Uploader utility screen with upgrade file selected.  
8 To begin the upgrade process, click the Upload Now button. The progress will be shown within the dialog. Should you decide  
not to continue with the upload at any stage, click the Abort button; response to this is usually immediate, however, during an  
erase command, the upload will not be aborted until the erase is complete (this may take a few seconds).  
9 Disconnect the power. When the power is re-applied the ServSwitch Wizard VGA (USB) unit will operate using the new firmware.  
Issues to consider when performing flash upgrades  
The upgrade program rewrites the internal firmware code. If the upgrade process is interrupted then the unit will have invalid  
code and will not be able to operate. It is therefore good practice to ensure that the upgrade process is always fully completed. A  
partial or failed upgrade may be rectified by performing another upgrade.  
WARNING: Running faulty or partially upgraded code may have unpredictable results and may damage your ServSwitch Wizard  
VGA (USB) unit or computing equipment.  
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ServSwitch Wizard VGA (USB)  
5. Operation  
5.1 Selecting a computer  
There are four main ways to switch the common peripherals to specific computer channels:  
Using the front panel controls (see below)  
• Using hotkeys  
• Using mouse button presses  
• Using external switching control (RS-232 or input lines)  
5.1.1 Selecting a computer using the front panel  
The front panel allows you to determine how the various peripherals are switched to one or more computer channels.  
Indicates the number  
of the currently  
selected computer  
The KVM, SPK, USB1, and USB2 indicators 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.  
COMPUTER  
KVM SPK USB1 USB2  
MODE  
Use this button to  
choose the next  
required computer  
Use this button  
to choose which  
peripherals will  
be switched  
V1  
V2  
V3 V4  
Multiscreen models only - The V1 to V4 indicators show which  
video monitors are switched to the current computer channel.  
Figure 5-1. Front panel buttons and indicators.  
To select a computer using the front panel  
1 Optional: If you need to selectively switch some of your peripherals, press the MODE button repeatedly to change the switch-  
ing mode:  
KVM SPK USB1 USB2  
MODE  
MODE  
MODE  
MODE  
MODE  
Will switch all peripherals together  
Will switch keyboard, video, mouse and speakers  
Will switch only the keyboard, video and mouse  
Will switch only the speakers  
Will switch only USB peripheral 1  
Will switch only USB peripheral 2  
Figure 5-2. Changing the switching mode using the MODE button.  
Note: If an indicator flashes, it signifies that the respective peripheral is currently switched to another computer channel.  
2 Press the COMPUTER button repeatedly to select the required computer channel.  
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Chapter 5: Operation  
5.1.2 Selecting a computer using hotkeys  
Using hotkey combinations, you can quickly switch the keyboard, video monitor(s), mouse and speakers and USB peripherals to  
any computer channel.  
There are two mains ways to use hotkeys: Standard and Additional.  
To use standard hotkey press combinations  
The standard hotkey press combinations allow you to change channels with the minimum of keypresses:  
1 Simultaneously press and hold CTRL and ALT (or other hotkeys, if altered).  
2 While still holding CTRL and ALT, press the number key of the required channel address (or the TAB key), then release all of  
the keys.  
Note: The numbers on your keyboard’s numeric keypad are not valid, use only the numeral keys above the QWERTY section.  
The ports (KVM, audio and/or USB) that are switched using this method depend upon the switching mode that is currently set  
using the front panel buttons.  
The range of standard hotkey combinations are as follows:  
Note: If your hotkeys have been changed, substitute them for CTRL and ALT in the examples given here.  
CTRL ALT 1  
CTRL ALT 2  
CTRL ALT 3  
CTRL ALT 4  
CTRL ALT 0  
CTRL ALT TAB  
Selects channel 1  
Selects channel 2  
Selects channel 3  
Selects channel 4  
Isolates the user console from all channels  
Selects the next channel (see note below)  
Choosing which computers are accessed when using hot keys + tab  
The computer channels that are visited when you use the hot keys + tab (or mouse buttons/autoscan) are determined by a  
setting within the Configuration menu:  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press U and then press either:  
7 to choose Cycle all ports, or  
8 to choose Cycle only active ports  
3 Press Enter to accept the setting and return to the main menu section.  
4 Press E and then Enter to exit the menu and save changes.  
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ServSwitch Wizard VGA (USB)  
To use additional hotkey press combinations  
In addition to the standard hotkey press combinations (shown left), you can also add additional keypresses in order to determine  
which peripherals are switched:  
1 Simultaneously press and hold CTRL and ALT.  
2 Press and release a command key:  
A to switch all peripherals  
K to switch only the keyboard, video and mouse  
S to switch only the speakers  
U to switch only USB1 and USB2  
3 Press and release the required channel number (1 to 4 using only the keys above the QWERTY section).  
4 Release CTRL and ALT.  
The appropriate peripherals will change to the chosen channel.  
Note: Regardless of which peripherals were switched, the front panel indicators will continue to show the switching mode that  
was last determined using the front panel controls.  
5.1.3 Selecting a computer using the mouse buttons  
Using the mouse buttons, you can quickly switch the keyboard, mouse, video monitor(s), speakers and/or USB peripherals to any  
computer channel.  
Note: These procedures work only with three-button or IntelliMouse devices and only if the ‘Mouse Switching’ option has been  
enabled.  
To select a computer using the mouse buttons  
1 Hold down the middle button (or scroll wheel) of the mouse.  
2 Click the left mouse button to increment the channel number or click the right mouse button to decrement the channel. When  
the correct channel is reached, release the middle button.  
When using this method of switching:  
• The computer channels that are visited depend upon the configuration menu setting (see note below).  
Choosing which computers are accessed when using mouse buttons  
The computer channels that are visited when you use the mouse buttons (or hotkeys + tab/autoscan) are determined by  
a setting within the Configuration menu:  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press U and then press either:  
7 to choose Cycle all ports, or  
8 to choose Cycle only active ports  
3 Press Enter to accept the setting and return to the main menu section.  
4 Press E and then Enter to exit the menu and save changes.  
• The ports (KVM, audio and/or USB) that are switched using this method depend upon the switching mode that is currently  
set using the front panel buttons.  
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Chapter 5: Operation  
5.2 Locking access to the computers  
When privacy is required, you can lock access to the connected computers via the unit.  
To lock the unit  
1 Simultaneously press and hold CTRL and ALT (or other hotkeys, if altered).  
2 While still holding CTRL and ALT, press L.  
The display will show P (providing a valid password has been previously set). You will not be able to access any computers until  
the password is correctly entered.  
To unlock the unit  
• When prompted, enter the correct password and press Enter.  
To set a new password  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press P and then Enter. The display will show  
3 Enter a new password and then Enter.  
The password is not case sensitive and can be any combination of key strokes, including the function keys, but excluding the  
Num Lock, Caps Lock, Scroll Lock and Enter keys. If your keyboard has special media keys, these also cannot be used as part of  
the password.  
When you have typed in your password, press Enter to store it. Don’t worry if you type the password incorrectly, you can  
always re-enter configure mode and set the password again.  
4 Press E and then Enter to exit the menu and save changes.  
To cancel the password  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press P and then Enter. The display will show  
3 Press Enter to remove the existing password.  
4 Press E and then Enter to exit the menu and save changes.  
If you forget the password  
To clear an existing password: Connect the OPTIONS port of the unit to the serial port of a computer and  
transmit the text clrpwd to the unit.  
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ServSwitch Wizard VGA (USB)  
5.3 Autoscanning  
When enabled, the autoscan mode switches between the connected computers in sequence. This is useful to allow you to sample  
activity among the connected computers.  
Two scanning modes are available:  
Cycle all ports – This mode visits, in turn, to each connected computer. This mode should be used with care due to the reasons  
given in the warning below. To prepare for this autoscan mode, choose U 7 within the configuration menu.  
Cycle only active ports – Only computer ports where an active computer is detected will be viewed. This mode avoids blank  
screens from being displayed and helps to prevent the viewing monitor from entering a power-down state on every scan cycle.  
Additionally, when this mode is selected, whenever you use either the mouse buttons or hot keys + tab to change channels,  
only computers that are active will be visited. To prepare for this autoscan mode, choose U 8 within the configuration menu.  
WARNING: Many monitors are fitted with automatic power saving relays that switch off after a few seconds when  
connected to an inactive computer. If you are using such a monitor, do not use the ‘Cycle all ports’ mode.  
Continual switching on and off of the monitor’s relay will eventually damage the monitor.  
Seven autoscan periods are available (the time spent viewing each computer) ranging from 2 seconds to 5 minutes. To prepare  
the autoscan period, choose T and then 2 to 8 within the configuration menu.  
To start autoscanning mode, press CTRL ALT X on the keyboard.  
To select an autoscan mode  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press U and then press either:  
• 7 to choose Cycle all ports, or  
• 8 to choose Cycle only active ports  
3 Press Enter to accept the setting and return to the main menu section.  
4 Press E and then Enter to exit the menu and save changes.  
Note: The setting of this option also affects which computers are visited when the channel is changed using the mouse buttons  
or hot key + tab.  
To select an autoscan period  
1 Enter the Configuration menu (see Section 4.1 for details).  
2 Press T and then press either:  
1 to choose Autoscan disabled,  
2 to choose 2 seconds,  
3 to choose 5 seconds,  
4 to choose 7 seconds,  
5 to choose 15 seconds,  
6 to choose 30 seconds,  
7 to choose 1 minute, or  
8 to choose 5 minutes.  
3 Press Enter to accept the setting and return to the main menu section.  
4 Press E and then Enter to exit the menu and save changes.  
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Chapter 5: Operation  
To start autoscanning  
• On the keyboard, press CTRL ALT X.  
Notes:  
During autoscanning, mouse switching, hot key + tab and interactivity with the computers are all disabled.  
During autoscanning, only the KVM and speaker ports are switched to each visited computer channel, the two USB device ports  
remain connected to their currently selected channels.  
To stop autoscanning  
You can stop the autoscanning process in either of the following ways:  
• Press the COMPUTER button on the front panel, or  
• Select a specific channel using the hot keys + channel number.  
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ServSwitch Wizard VGA (USB)  
Appendix A. What is True Emulation?  
True Emulation represents a significant breakthrough in sharing USB devices between two or more computer systems. Until this  
point, the problem has been how to create a USB switch that provides all of the following:  
• Quick, transparent and reliable switching,  
• Accurate representation of the connected USB keyboard and mouse,  
• Switching control via the connected USB keyboard and/or mouse.  
The difficulty in achieving all of the above requirements has been due to the complexity of the USB standard. This has led to vari-  
ous problems that have spawned a number of possible solutions.  
A.1 Enumerated USB switching  
The earliest attempts to switch USB devices applied a relatively ‘hands off’ approach. Enumerated USB switches are the electronic  
equivalent of those old mechanical KVM switches with a large knob on the front.  
Enumerated switches are so called because a connected USB device will be required to perform a full initiation (a process called  
Enumeration) every time it is switched; just as if you had pulled out the plug and then reconnected it.  
Enumerated switches simply pass all signals straight through between the USB device and the computer, they do not attempt to  
interpret any data. For most devices, this offers an advantage because the switch just leaves them to get on with their jobs with-  
out any interference or any hit on performance. However, it means that a USB keyboard or mouse cannot be used to control the  
switching process - a quick and simple control method expected by most users. Reliability of switching is also an issue that has  
plagued enumerated switches, especially when used with certain USB devices and particular operating systems.  
A.2 Emulated USB switching  
The issues with interpreting the complex USB data streams and recreating (or Emulating) the identity of attached USB devices  
were eventually solved, leading to the creation of the Emulated USB switch.  
A neat side effect of the technique used is that each computer can be fooled into thinking that the USB device is permanently  
connected to it, even when the device is switched to another computer. This means that the enumeration process for the USB  
device takes place only once, during the first power on. After that, a computer merely sees a dormant version of the USB device  
whenever the device is actually connected to a different computer.  
However, it remains a complex task to dynamically assume the identity of a USB device, distribute it among the connected com-  
puters and maintain all of the necessary signals, states and processes. Therefore, manufacturers have previously relied upon a  
fixed keyboard and mouse profile that is declared to each computer, regardless of the actual connected devices. This precluded  
the use of any special keyboard or mouse features over and above the standard layouts.  
A.3 True Emulation  
Mindful of the limitations associated with the previous USB switching techniques, we set about creating a more effective and ele-  
gant solution. After a great deal of research and development, True Emulation is the result.  
True Emulation allows the complete identity of the keyboard and mouse to be copied and then presented to all of the connected  
computers. This means that any keyboard offering specialist function keys or any mouse with extra features will be fully supported  
at each computer. As with the previous emulation method, the unselected computers will continue to see the identities of the  
keyboard and mouse, which means that no enumeration is necessary when their link becomes active once again. This not only  
helps to speed up the rate of reconnection, but also raises the reliability of switching because USB links are at their most vulnera-  
ble during the enumeration process.  
True Emulation relies upon a high speed circuit, called an Emulation Engine, to fully emulate the USB device identities and also  
interpret keyboard and mouse data streams. The result is full support for KVM switching control via hotkey presses or the third  
button/scroll wheel of a mouse.  
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Appendices  
True Emulation is not necessarily required by other USB devices, which is why you will also find two enumerated circuits included  
(shown in green within the block diagram) alongside the True Emulation feature (shown in blue). This allows those other USB  
devices to operate at their highest speeds, without any intervention. The enumerated circuits benefit greatly from the USB Hubs  
that are jointly used with the True Emulation system. Because they interface directly and permanently with each computer, they  
help to stabilize the dormant links, making errors during enumeration much less likely.  
The dual switching arrangement provides further flexibility because the True Emulation and enumerated sections can be  
switched in unison or independently of each other, as required. Thus, your various peripherals can operate with different  
computers at the same time.  
USB  
KEYBOARD  
USB  
MOUSE  
OTHER USB  
DEVICE  
HOST  
CONTROLLER  
EMULATION  
ENGINE  
USB  
HUB  
USB  
HUB  
USB  
HUB  
USB  
HUB  
PC  
1
PC  
2
PC  
3
PC  
4
Figure A-1. True Emulation functional block diagram. The emulated section of the switch is shown in blue and  
handles only the keyboard and mouse. The green enumerated section of the switch handles other USB devices  
and also uses the USB hubs to link with the computers.  
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ServSwitch Wizard VGA (USB)  
Appendix B. Default EDID video modes  
The following digital video modes are defined within the default EDID information held by the ServSwitch Wizard VGA (USB)  
units. This information is used only if no new EDID information is made available by the attached video monitor(s). The ServSwitch  
Wizard VGA (USB) units support video resolutions and refresh rates in excess of those listed here.  
1024 x 768p at 60Hz  
720 x 400p at 70Hz  
720 x 400p at 88Hz  
640 x 480p at 60Hz  
640 x 480p at 67Hz  
640 x 480p at 72Hz  
640 x 480p at 75Hz  
800 x 600p at 56Hz  
800 x 600p at 60Hz  
800 x 600p at 72Hz  
800 x 600p at 75Hz  
832 x 624p at 75Hz  
1024 x 768i at 87Hz  
1024 x 768p at 60Hz  
1024 x 768p at 70Hz  
1024 x 768p at 75Hz  
1280 x 1024p at 75Hz  
1152 x 870p at 75Hz  
1600 x 1200p at 60Hz  
1680 x 1050p at 60Hz  
1360 x 765p at 60Hz  
1360 x 768p at 60Hz  
1440 x 900p at 60Hz  
1280 x 720p at 60Hz  
1920 x 1080p at 60Hz  
Native/preferred timing  
IBM VGA  
IBM XGA2  
IBM VGA  
Apple Mac II  
VESA  
VESA  
VESA  
VESA  
VESA  
VESA  
Apple Mac II  
IBM  
VESA  
VESA  
VESA  
VESA  
Apple Mac II  
VESA STD  
VESA STD  
VESA STD  
VESA STD  
VESA STD  
VESA STD  
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Appendices  
Appendix C. Cable pin-outs  
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 are listed in this section for both types of con-  
nector.  
Serial remote control and flash upgrade cable (8p8c)  
8p8c  
connector  
D-Type female  
9 way  
TXD  
RXD  
GND  
6
3
2
2
3
5
RXD  
TXD  
GND  
Serial remote control and flash upgrade cable (10p10c)  
10p10c  
connector  
D-Type female  
9 way  
TXD  
RXD  
GND  
7
4
3
2
3
5
RXD  
TXD  
GND  
Multi-head synchronization cable (8p8c)  
MASTER end  
8p8c connector  
SLAVE end  
8p8c connector  
TXD  
6
2
3
2
RXD  
GND  
GND  
Multi-head synchronization cable (10p10c)  
MASTER end  
SLAVE end  
10p10c connector  
10p10c connector  
TXD  
7
3
4
3
RXD  
GND  
GND  
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ServSwitch Wizard VGA (USB)  
Appendix D. Safety information  
• For use in dry, oil free indoor environments only.  
• Both the ServSwitch Wizard VGA (USB) unit and its power supply generate heat when in operation and will become warm to  
the touch. Do not enclose them or place them locations where air cannot circulate to cool the equipment. Do not operate the  
equipment in ambient temperatures exceeding 40 degrees Centigrade. Do not place the products in contact with equipment  
whose surface temperature exceeds 40 degrees Centigrade.  
• Warning - live parts contained within power adapter.  
• No user serviceable parts within power adapter - do not dismantle.  
Plug the power adapter into a socket outlet close to the module that it is powering.  
Replace the power adapter with a manufacturer approved type only.  
Do not use the power adapter if the power adapter case becomes damaged, cracked or broken or if you suspect that it is not  
operating properly.  
If you use a power extension cord with the ServSwitch Wizard VGA (USB) unit, make sure the total ampere rating of the devic-  
es plugged into the extension cord does not exceed the cord’s ampere rating. Also, make sure that the total ampere rating of  
all the devices plugged into the wall outlet does not exceed the wall outlet’s ampere rating.  
Do not attempt to service the ServSwitch Wizard VGA (USB) unit yourself.  
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Great tech support is just 20 seconds away at 724-746-5500 or blackbox.com.  
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