Altinex VA6831FC manual About Your Interface, Technical Specifications

INTERFACES

ABOUT YOUR INTERFACE 2

There are several varieties of computers and computer video cards on the market today. There are also numerous data monitors and large screen data projectors. When displaying a computer image on a large screen data projector or on a large screen monitor, it often becomes clear that some computers are not always compatible with these display devices. The VA6831FC is a computer video interface designed to resolve this incompatibility.

The VA6831FC is a dual input-switchable computer video interface. It is designed to interface up to two VGA, SVGA, XGA, UXGA, MAC, SUN, or SGI computer video sources to one scan-rate compatible presentation monitor or data projector. Each of the inputs can be connected to different types of computers simultaneously. The VA6831FC will amplify video signals and convert the sync portion of the signal to the desired format.

It is important to understand the general capabilities of interfaces. Interfaces do not change the scan-rate or the resolution of the video signal. An interface simply converts a computer video signal to a pre-selected analog format. The source (computer) and display (projector or monitor) must be scan-rate compatible.

The VA6831FC is a state-of-the-art piece of equipment with an exceptional combination of advanced features and very competitive pricing.

TECHNICAL SPECIFICATIONS		3
FEATURES/DESCRIPTION	VA6831FC
GENERAL
No. of Inputs	2 Audio Inputs + 2
	Video Inputs
Computer Input Connector	Two, 15pin HD Female
Stereo Audio Input	Two, 5 position
Connector	Terminal Blocks
No. of Outputs	2 Local Monitor Output
	+ Main Video Output +
	Stereo Audio Output
Local Monitor Output	Two, 15-pin HD
Connector	Female
Main Video Output	One, 6 BNC
Connector

Stereo Audio Output		One, 3 position
Connector		Terminal Block
Compatibility		VGA/
		SVGA/XGA/UXGA
		Compatible Signals,
	Apple/MACII/Quadra/G
		3 Signals, Sun/SGI
		Workstations
Table 1. VA6831FC General
MECHANICAL		VA6831FC
Width (inches)		8.50in (216mm)
Height (inches)		1.75in (44mm)
Depth (inches)		4.93in (125mm)
Weight (pounds)		2.0lbs (0.91kg)
Ship Weight (pounds)		2.8lbs (1.27kg)
Material		0.1" Aluminum
Finish		Gray
Faceplate		Lexan
T° Operating		10° C-35°C
T° Maximum		50° C
Humidity Technical		90% non-condensing
MTBF (calculations)		40,000hrs
Table 2. VA6831FC Mechanical
ELECTRICAL		VA6831FC
Input Video Signals
Analog Signal		0.3 to 1.2 Volt p-p
Impedance		75 Ohms
Input Sync Signals
Horizontal, Vertical, & C-Sync		TTL(+/-)
Sync on Green		-0.3V
Impedance		10 k Ohms
Audio Input Signals
Type		Differential
CMRR		>80dB @ 10 Hz to 20
		kHz
Impedance		10 k Ohms
Voltage		10 V p-p, +/-5 Volts
Output Video Signals
Analog Signal		0.77 V p-p
Impedance		75 Ohms
Output Sync Signals
Composite Sync		TTL(+/-)
Sync on Green		-0.3V
Impedance		22 Ohms
Audio Output Signals
Type		Single Ended
Impedance		<22 Ohms (drives 600

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