Black Box AC135A User manual

TV to VGA Converter/Line Doubler
With Audio and Output VGA Switch
January 2002
AC135A
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 [phone]
Mail order: Black Box Corporation, 1000 Park Drive, Lawrence, PA 15055-1018
Web site: www.blackbox.com • E-mail: [email protected]
CUSTOMER
SUPPORT
INFORMATION

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TRADEMARKS USED IN THIS MANUAL
BLACK BOX and its logo are registered trademarks of Black Box
Corporation.
Apple and Macintosh are registered trademarks of Apple Computer, Inc.
IBM is a registered trademark of International Business Machines
Corporation.
SGI is a registered trademark of Silicon Graphics, Inc.
Sun and Sun Microsystems are registered trademarks of Sun Microsystems,
Inc. in the United States and other countries.
Any other trademarks mentioned in this manual are acknowledged to be
the property of the trademark owners.

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FEDERAL COMMUNICATIONS COMMISSION
AND CANADIAN DEPARTMENT OF COMMUNICATIONS
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 the Canadian Department of Communications.
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 le ministère des Communications du Canada.
EUROPEAN UNION DECLARATION OF CONFORMITY
This product complies with the requirements of the European EMC
directive 89/336/EEC

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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.

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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.

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Contents
1. Introduction ...............................................................................page 6
1.1 General ................................................................................page 6
1.2 Features ...............................................................................page 7
2. Installation .................................................................................page 8
3. Operation .................................................................................page 11
4. Configuration...........................................................................page 13
4.1 RS-232 Control and Configuration.....................................page 13
4.2 Control Panel Software for Windows.................................page 14
5. Troubleshooting.......................................................................page 15
6. Specifications...........................................................................page 16

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1. Introduction
1.1 General
The Model AC135A converts an NTSC or PAL video signal to VGA
for display on PC monitors, projectors, or HDTV (in 480p or 600p
modes). The converter doubles the frame rate by turning the interlaced
TV signal into a "progressive scan" (non-interlaced) signal suitable for
high resolution display devices.
The AC135A provides multiple TV video inputs: two (2 ea.) RCA
composite video and one (1 ea.) S-Video -all with their own
corresponding stereo audio inputs.
Additionally, the AC135A provides a separate VGA and audio input
from a PC that can be switched to the output. This makes the AC135A a
4 multi-standard input to 1 VGA output device.
The user can select any of the inputs using a single push-button switch
on the front panel. An RS232 serial port is available for external control
and/or changing the internal configuration of the unit.
Selection of the input channel for display is made by a simple one-
button operation. The audio selection follows the selected input channel
(switched on or off), or can be mixed continuously to the output.
The unit features non-volatile memory to store the selected channel and
performance characteristics.
The AC135A's VGA output can drive VGA extension cables to 200
feet. It is recommended that when video extension cables are used, only
high quality multi-coaxial VGA or RGBHV (such as Black Box
EVNPS05-0050-MF) be used.
The Model AC135A is housed in a compact shielded enclosure and
includes a small power adapter and 6 ft video and audio cables for
connection to the PC’s VGA and sound outputs.

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1.2 Features
•3 NTSC/PAL and 1 PC input to one VGA output
•Full screen 24-bit true color broadcast-quality video
•Eliminates interlace flicker from video presentations
•Significantly improves appearance of projected video images
•Reduces visible line structure on large video images
•VGA input for full screen TV or PC Video display
•RS-232 control input port
•No software required
•4 Stereo audio inputs
•User programmable brightness and contrast for TV input
•Low cost, high reliability
•Packaged in portable EMI shielded enclosure
•VGA input resolutions to 1600 x 1200
Figure 1.1

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2. Installation
1. Connect one or more of the video and audio input signals to the
input connectors on the AC135A. Figure 2.1 shows a typical setup.
Figure 2.1
Video Conferencing
Document Camera
Notebook PC
VCR or DVD
VGA Projector VGA
LCD / Monitor
-or -
AC135A

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Figure 2.2
2. The following table summarizes the available inputs:
Connector
Name Connector Type Signal Type Comments
VGA IN HD15, Female VGA, SVGA,
XGA From any PC, MAC, or Notebook. A 6 ft high-
resolution VGA cable is
supplied with unit
AUDIO IN 3.5mm (1/8”)
Mini-Stereo Line-level stereo Audio One 6 ft m/m input cable is provided for connection to
a PC sound output
CV IN 1 RCA, Female Composite
NTSC or PAL From any video source
AUDIO IN 3.5mm (1/8”)
Mini-Stereo Line-level stereo Audio
CV IN 2 RCA, Female Composite
NTSC or PAL From any video source
AUDIO IN 3.5mm (1/8”)
Mini-Stereo Line-level stereo Audio
S-VID IN MiniDin 4,
Female Y/C (S-Video, S-VHS)
AUDIO IN 3.5mm (1/8”)
Mini-Stereo Line-level stereo Audio
The output connectors are a HD15-F (VGA), and a 3.5mm (1/8”) Mini-
Stereo audio. Plug your VGA monitor and speakers (must be powered)
to these connectors.