Black Box AC135A-R2 Manuale utente

Video to VGA Converter/Switch

With Audio, RS-232 Control, and PC VGA input

June 2004

AC135A-R2

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 15055-1018

Web site: www.blackbox.com • E-mail: [email protected]

CUSTOMER

SUPPORT

INFORMATION

Video to VGA Converter/Switch

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.

Video to VGA Converter/Switch

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

Video to VGA Converter/Switch

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.

Video to VGA Converter/Switch

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;

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.

Video to VGA Converter/Switch

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 13

4.3Serial Command Set...........................................................page 14

5. Troubleshooting.......................................................................page 15

6. Specifications...........................................................................page 16

Video to VGA Converter/Switch

1. Introduction

1.1 General

The Model AC135A-R2 converts an NTSC or PAL video signal to

VGA for display on PC monitors, projectors, or other progressive scan

displays. The converter de-interlaces and doubles the frame rate by

turning the interlaced Video input signal into a "progressive scan"

signal suitable for high-resolution display devices.

The AC135A-R2 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 unit provides a separate VGA and audio input from a

PC that can be switched to the output. This makes the AC135A-R2 a 4-

input to multi-standard switcher.

The user can select any of the inputs using individual push-button

switches on the front panel. An RS232 serial port is available for

external control and/or changing the internal configuration of the unit.

The unit has the ability to switch between the PC and TV inputs

automatically. When in “Auto” mode, if no TV video signal is present,

it selects the PC input and as soon as a TV input is detected, it switches

to the TV input by itself. This feature makes the unit perfect for

educational facilities where the presenter does not even have to worry

about making selections on the AC135A-R2.

The AC135A-R2 also provides 4 Stereo audio inputs, one for each

corresponding video input. The audio switching follows the selected

video input channel. In addition, each audio input has its own

adjustable volume setting making it perfect for balancing the output

volume level regardless of the input selection.

The AC135A-R2'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.

Video to VGA Converter/Switch

When enabled, OSD (On Screen Display) shows the selected TV input

for a few seconds, or if the selected input does not have video, it

continuously indicates the selected input. Screen Saver feature moves

the OSD around the screen when no video input is detected. The OSD

can be permanently disabled via the serial port.

The front panel can be locked out. This is a handy feature in many

installations. For example if the system is in “Auto” mode, the installer

may wish to also lock the front panel so that accidental hitting of the

front panel switches does not take the system out of Auto mode.

The unit features a front panel switch for enhancing the TV video input

prior to display on a VGA monitor. The enhancement is based on non-

linear Gamma correction. to bring out the details in the dark areas

without over driving the already bright regions of the image.

The Serial input givesthe user or installer full control over all aspects

of the device including: Contrast, Brightness, Saturation, Hue, OSD,

Front Panel Lock, Volume settings, Auto mode, TV format

(NTSC/PAL), Enhancement factor, and more.

The Model AC135A-R2 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.

1.2 Features

•3 NTSC/PAL and 1 PC input to one VGA output

•Eliminates interlace flicker from video presentations

•Includes line-doubler with motion compensations

•Video enhancement via Gamma factor correction

•VGA input for full screen TV or PC Video display

•RS-232 control input port

•Free Serial Control Software available for download

•4 Stereo audio inputs

•User programmable brightness and contrast for TV input

•Packaged in portable EMI shielded enclosure

•VGA input resolutions to 1600 x 1200

•Individual volume controls for each audio input

•"Auto" mode for switching to active video

•Front panel and OSD enable/disable control

Video to VGA Converter/Switch

2. Installation

1. Connect one or more of the video and audio input signals to the

input connectors on the AC135A-R2. Figure 2.1 shows a typical setup.

Figure 2.1

Video to VGA Converter/Switch

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, FemaleComposite

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.

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