Black Box AC505A Manuel utilisateur
2x1 Compact VGA Switch
Model AC505A
with
Push-button Switch Cord and Serial Control Port
March 2006
CUSTOME
R
SUPPORT
INFORMATION
Order toll-free in the U.S. 24 hours, 7 A.M. Monday to midnight Friday:
877-877-BBOX
FREE technical support, 24 hours a day, 7 days a week:
Call 724-746-5500 or fax 724-746-0746
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055
UMA1032, Rev 1.2
2x1 Compact VGA Switch
1
TRADEMARKS USED IN THIS MANUAL
Black Box, and (logo) are trademarks of Black Box Corporation. IBM
is a registered trademark of International Business Machines Corporation.
Any other trademarks mentioned in this manual are acknowledged to be the
property of the trademark owners.
FEDERAL COMMUNICATIONS COMMISSION
RADIO FREQUENCY INTERFERENCE STATEMENT
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 designed 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 intended 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
or her 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 the Canadian Department of Communications.
EUROPEAN UNION DECLARATION OF CONFORMITY
This product complies with the requirements of the European EMC
directive 89/336/EEC
AC505A
2
Normas Oficiales Mexicanas (NOM)
Electrical Safety Statement
INSTRUCCIONES DE SEGURIDAD
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.
2x1 Compact VGA Switch
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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.
AC505A
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Contents
1. Introduction ..........................................................page 5
1.1 General ................................................................ page 5
1.2 Features ...............................................................page 6
2. Installation.............................................................page 6
3. Configuration and Operation ..............................page 8
3.1 Dip Switch Settings ............................................. page 8
3.2 More on Serial RS-232 Operation .....................page 11
3.3 Serial Control Codes .......................................... page 12
4. Troubleshooting ..................................................page 13
Contacting Black Box............................................page 14
Shipping & Packaging ........................................... page 15
5. Specifications.......................................................page 15
2x1 Compact VGA Switch
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1. Introduction
1.1 General
The Model AC505A is a versatile, compact, high
performance, solid-state, 2 input x 1 output, VGA video
switch that can operate at resolutions of up to 1600x1200.
The unit allows one monitor to be switched between two
video sources. The device is housed in a small RFI shielded
enclosure and is supplied with an universal power supply, a
push-button remote switch control cable, and a Serial (RS-
232) control cable for connecting to a PC or other serial
control device.
The switch terminates both video input signals and buffers
the output in order to protect signal integrity. The Model
AC505A can drive video cables to 150 feet or more
(depending on cable quality an resolution setting). The input
and output connectors are all HD15 Female (standard VGA
style).
1.2 Features
Allows one monitor to be switched between two sources
Can be controlled manually, via Serial port, or from TTL level
(or contact closure)
Select input 1, input 2, or blank the output
Auto mode automatically scans and selects the input with active
video (Inputs can also be prioritized)
Infinite switching cycle life
Can drive long cables
Terminates both video input signals and buffers the output to
protect signal integrity
Includes pushbutton and serial cables for control
AC505A
6
2. Installation
Your package should include two control cables, a power
supply, and the Video Switch unit itself. Please take
inventory of all items received and ensure that you have the
above items.
Connect INPUT 1 and INPUT 2 of the switch to your video
sources such as computer or notebook PC. You will require a
cable for each connection. It is highly recommended that you
use multi-coaxial high-resolution VGA cables for this
purpose. The cables would generally be male-to-male. Black
Box can provide cables from 3 feet to 100 feet or more;
please contact us for ordering information.
Connect the display device such as a monitor (or a video
projector) to the output of the Switch.
Set the dip switches according to the mode of operation that
best suites your application.
Connect the supplied AC power adapter to the Splitter, and
plug-in the push-button switch cord.
Please refer to figure 2.1 for installation block diagram.
Important Notice
Always use the unit with the provided power supply. Do
Not Substitute other DC Power Source. If you would like
to use a different power supply source, contact Black
Box first to confirm compatibility.
2x1 Compact VGA Switch
7
Plug-and-Play
DDC (Direct Data Channel) is a standard by which a
compatible monitor sends its identification and other
parameters to a PnP operating system such as Windows
XP etc. The AC505A does not switch the PNP signal lines
to the PC. This means that, in some instances, you may
have to select a new monitor or video settings on your PC.
Also notice that most Notebook PC's have a special
function key to activate the external video output
connector
AC505A
Pushbutton
Switch Cord
- OR -
RS-232 Device
- OR -
TTL Level
- OR -
Automatic
Figure 2.1
AC505A
8
3. Configuration & Operation
3.1 Dip Switch Settings
The Model AC505A provides a convenient dip switch for
setting the desired mode of operation. It is recommended to
set the jumper prior to applying power to the unit, however
the device does monitor the dip switch settings when on and
changes mode of operation as needed.
Normal (all switches off – levers up)
This is the default mode setting for the switch. In this mode
the unit is controlled from the push-button switch cord. The
switch at the end of the cable is momentary and it has a built-
in LED. The LED is used to indicate which input is selected.
Solid on means Input 1, blinking means Input 2 (when
blanking mode is enabled, LED off means blanked output).
Every time you press the button the output switches from the
current input to the other input. When blank mode is on,
double clicking the button will blank the output screen.
Figure 3.1
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