Extron electronics Interface RGB 120p Manuale utente

Data Monitor

Local

Monitor

Workstation

Large Screen Projector

MBC Buffer

RGB 120 Interface

(P/N 60-130-01)

User’s Guide

Extron Electronics, Asia

41B Kreta Ayer Road

Singapore 089003

+65-226-0015 FAX +65-226-0019

Singapore

Extron Electronics, Europe

Beeldschermweg 6C

3821 AH Amersfoort

+31-33-453-4040 FAX +31-33-453-4050

The Netherlands

Extron Electronics

1230 South Lewis Street

Anaheim, CA 92805

714-491-1500 FAX 714-491-1517

U.S.A.

79-04

68-292-01

Rev.C

Specifications

Input Video Signal: ..Analog: .5 to 1.2 volts p-p

..ECL: .8 to 1 volt p-p

Input Sync Signal: ..Sync on Green (RGsB)

..Sync on Red, Green and Blue (RsGsBs)

..Composite Sync (RGBS)

..Separate H&V (RGBHV)

Output Signal: ..Video: .5 to 1 volt p-p

Frequency Compatibility:

..Horizontal: 15-125 kHz (automatic)

..Vertical: 30-170 Hz (automatic)

RGB Video Bandwidth:

..200 MHz (2.1 nS Rise Time)

Wall Mount Power Supply:

..115 VAC, 60 Hz to 15 VDC/900 mA

Below is an example of how an RGB 120

may be connected to a

computer, through an MBC buffer.

OUTPUTS

Operation

Power LED: Indicates if the RGB 120p is receiving power.

Horizontal Center Control: With the H Center switch On/enabled,

the H Center Control [ ] shifts the displayed image left or right.

Vertical Center Control: With the V Center switch On/enabled, the

V Center Control [ ] shifts the displayed image up or down.

Level Control: Increases (clockwise) the output video level from .3 to

1 volt p-p. This is similar to a contrast control on a monitor or

projector.

Peaking Switch: Selects from three levels of peaking to compensate

for mid and high frequency signal losses due to cable length. This

is similar to the sharpness control on a monitor. The 3 switch

positions are 0 (for no peaking), 50% peaking and 100% peaking.

Select the peaking level for the sharpest image on the display.

Note: Over-peaking will distort the displayed image.

Universal Input: Using EXTRON’SMBC input cables and buffers,

allows viewing on both the computer monitor and large-screen

projector/monitor at the same time.

MBC Power Source: Use only to power EXTRON’SMBC buffers.

Termination Switch: 75 ohm video termination for applications with

no local monitor (Sw7, below).

Switch# Position Function

1ON Does not allow Sync on Green

OFF Normal-Automatic Sync Output Detection

2ON Removes serration pulses

OFF Normal-serration pulses passed through

3ON Vertical Sync Width (500 µs)

OFF Normal-Vertical Sync Width (150 µs)

4ON Negative Sync at all times

OFF Normal-Sync output polarity tracking

5ON No Sync Processing (disables center controls)

OFF Normal-Sync Processing

6ON Separate H and V Sync at all times

OFF Normal - Automatic Sync output selection

7ON 75 ohm Input termination (no local monitor)

OFF High Z Input termination (with local monitor)

Front Panel

V CENTER

PEAK

100%

50%

(off)

CPU

Power

MBC

Buffer Monitor

Display

Output

Rear Panel

OUTPUTS

Extron • RGB 120

Interface • User’s Guide

Installation and Operation

Extron • RGB 120

Interface • User’s Guide

Installation and Operation

DescriptionThe RGB 120

has a Video Bandwidth of 200 MHz and is

compatible with any Analog or ECL computer system with a

horizontal frequency range of 15-125 kHz. Using Extron MBC

Cables and MBC Buffers, the RGB 120

is compatible with VGA,

Super VGA, IBM PS/2, MAC, Sun, Silicon Graphics, XGA, XGA-2,

DEC and many others. Call Extron or refer to Extron'SHandbook

of Computer Interfacing for a complete listing.

Installation (See illustration)

1. Turn off computer and its Monitor.

2. Disconnect local Monitor cable from the computer and connect it to

the local monitor port on the MBC buffer.

3. Connect MBC interface output cable to “Analog/ECL” on the

RGB 120

4. Connect the MBC Power cable to the

RGB 120

5. Connect the MBC’s CPU cable to the

computer’s video output.

6. Apply power to the RGB 120

, the CPU and

monitor.

Automatic Sync Output— See Sync Output

illustration. The RGB 120

will automatically

output Sync on the coax cables being used,

if they are terminated with less than 1K ohm.

• Sync on Green—Cables on R, G and B only.

• Composite Sync—Cables on R, G, B, and H/HV

(not V).

• Separate H&V Sync—Cables on R, G, B, H/HV

and V.

Sync is automatically stripped from the Red,

Green and Blue channels.

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