Black Box ACL201A Manuale utente

Model ACL201A

20 in x 1 out PC (VGA) Video Switch

March 2004

CUSTOMER

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]

20 in x 1 out PC (VGA) Video 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

Model ACL201A

Contents

1. Introduction ............................................................................page 3

1.1 Model ACL201A ..................................................................page 3

1.2Features ..................................................................................page 4

2. Installation................................................................................page 4

3. Configuration and Operation .................................................page 5

4. Troubleshooting .......................................................................page 6

Contacting Black Box................................................................page 6

Shipping & Packaging................................................................page 6

5. Specifications............................................................................page 7

20 in x 1 out PC (VGA) Video Switch

1. Introduction

1.1 Model ACL201A

The Model ACL201A is a 20 in x 1 out video switch that allows a

monitor to display any of the 20 inputs.

The inputs can be RGBHV (e.g. VGA from a PC), RGBS, or RGsB

with resolutions to 1600x1200 pixels, all inputs are terminated and

buffered using 250 MHz DC-coupled video amplifiers for a sharp and

perfect reproduction at each output.

The ACL201A's output can drive cables in excess of 300 feet. Each

channel provides a user selectable compensation for long cable runs.

The compensation should be applied to those inputs where the total

length of the cable from that particular input to the monitor exceeds 150

feet.

An RS232 "Serial Port" is provided on the unit to control the selection

for the output. A Serial Keypad is supplied with each unit. The

ACL201A has a built-in universal power supply and requires standard

110/220 v AC, 50 or 60 Hz for operation. A power cord is furnished

with the unit.

The ACL201A employs HDD15 female connectors for all video inputs

and outputs (with standard VGA pinout). All cable connections are

located on the rear of the unit. The front panel provides the on/off

power switch and individual indication of the channels selected for each

output. The brightness of the Channel LED's on the front panel is an

indication of the "compensation" setting for that channel.

The ACL201A’s output can also be blanked.

Model ACL201A

1.2 Features

•20 inputs to 1 output

•Can drive long cables

•Output can also be blanked

•Amplifies the signal for clean and crisp transmission

•Handles resolutions up to 1600x1200 at any refresh rate

•Rugged, Reliable, Compact & Rack-mountable size

•Universal Power Supply

•Perfect for Remote Monitoring, Video Staging, Conference

Rooms, Classrooms and more

2. Installation

1. Make sure the unit is powered off.

2. Connect your video sources to the input connectors (labeled

IN 1 through 20)

3. Connect the Monitor or projector to the connector (labeled

OUTPUT).

4. Connect the keypad to the RS232 port on the device (labeled

KEYPAD).

5. Connect and power up the optional external numeric display to

connector labeled DISPLAY.

6. Plug the power cord to the unit and turn the unit on using the

front panel switch.

Shown

with

Optional

Remote Channel Display

20 in x 1 out PC (VGA) Video Switch

3. Configuration &

Operation

Upon power-up, the device performs a self-test and selects the previously

displayed input (also recalls the compensation level that was used.

Select input channels by pressing the following key sequence on the keypad:

Single or Double digit input channel number, followed by ENTER

For example, to select input #12 punch: 12e

In entering the keys, you have 5 seconds to hit enter or the operation is

automatically cancelled. So if you stop for more than 5 seconds, the keypad

automatically resets itself. Also, if you press a key that is unexpected (such as

Esc or *) or if the channel is out of range, it will be ignored and the keypad

resets once again.

Special Characters:

ØTo blank the output signal altogether, enter zero for input.

i.e.: 0e

ØTo apply compensation to any input press: +

This clears up the display when long cables are used. The LED on the front

panel will be brightened.

ØTo turn compensation off for a particular input press: -

This causes the signal gain to go down, and the LED on the front panel will be

dimmed.

Note

The unit stores the compensation status of the outputs after power off

Model ACL201A

4. Troubleshooting

If you have a stable image but it looks somewhat blurry (object or

character edges are not sharp), try to adjust the compensation first.

Press + or –on the Keypad to apply to remove the compensation.

Contacting Black Box

If you determine that your Switch is malfunctioning, do not attempt to

repair the unit. Contact Black Box Tech. Support at 724-746-5500.

Before you do, make a record of the history of the problem. We will be

able to provide more efficient and accurate assistance if you have a

complete description.

Shipping and Packaging

If you need to transport or ship your extender:

• Package it carefully. We recommend that you use the original

container.

• Before you ship the units back to Black Box Corporation for

repair or return, contact us to get a Return Authorization (RA)

number.

20 in x 1 out PC (VGA) Video Switch

5. Specifications

Video Types VGA through UXGA, RGB , YPbPr , or YCbCr

Resolution Up to 1600 x 1200 at up to 85 Hz

Bandwidth DC to 250 MHz

Max. Distance Up to 300 ft. (90 m)

Connectors HD15 female for video in and out

Interfaces Standard Analog VGA; RS-232

Max. Altitude 10,000 ft. (3048 m)

Temperature Operating: 32 to 122°F (0 to 50°C);

Storage: –40 to +185°F (–40 to +85°C)

Humidity Up to 95% non-condensing

Enclosure Steel

MTBF 65,000 hours (calculated estimate)

Power 110 to 240 vAC, 50 to 60 Hz

Size 15.5 " wide x 3.19" high x 10" deep

Weight 15 lbs. (shipping)

Model ACL201A

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