Black Box AC505A Manuale utente

2x1 Compact VGA Switch

Model AC505A

with

Push-button Switch Cord and Serial Control Port

March 2006

CUSTOME

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

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

UMA1032, Rev 1.2

2x1 Compact VGA Switch

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

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

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

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

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

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

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

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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