KRAMER ELECTRONICS LTD.
2
1 INTRODUCTION
Congratulations on your purchase of this Kramer VGA distributor. Since 1981,
Kramer has been dedicated to the development and manufacture of high quality
video/audio equipment. The Kramer line has become an integral part of many of
the best production and presentation facilities around the world. In recent years,
Kramer has redesigned and upgraded most of the line, making the best even
better. Kramer’s line of professional video/audio electronics is one of the most
versatile and complete available, and is a true leader in terms of quality,
workmanship, price/performance ratio and innovation. In addition to the Kramer
line of high quality VGA distributor, such as the one you have just purchased,
Kramer also offers a full line of high quality switchers, processors, interfaces,
controllers and computer-related products. This manual includes configuration,
operation and option information for the VP-200xl from the Kramer VP Tools
line, of VGA Distributors.
1.1
A Word on VGA/XGA Distribution Amplifiers
VGA/XGA Distribution Amplifiers distribute one or more signals to several
users. They vary in the number of inputs, looping capability, programming
capability, number of outputs, operating format, bandwidth and input/output
coupling. VGA/XGA Distribution Amplifiers are used to distribute one source to
several acceptors (wide screen projectors, format converters etc.) for
simultaneous recording or monitoring of one source, with no discernible signal
degradation. The machines excel in very large bandwidth (some approaching
400Mhz) and very good linearity, making them usable for even the highest
graphics standards. A good quality distribution amplifier amplifies the incoming
signal, may pre-compensate the signal for potential losses (resulting from the use
of long cables, noisy source, etc.) and generates several identical buffered and
amplified outputs. The front panels of these Kramer Amplifiers are designed to be
simple to operate. Typical applications of the machines are: computer graphics
distribution in classes, point of sale and multimedia studios, displaying computer
graphics before large audiences using the data input of a wide screen video
projector.
1.2
Handling Graphics Signals
A computer generated graphics signal usually comprises 5 signals: Red, Green,
Blue - which are analog level signals, and two TTL (logic) level signals -
Horizontal Sync and Vertical Sync. (Digital graphics cards and monitors use a
different signal format, and will not be discussed here.)
Computer graphics resolution is measured in pixels and signal bandwidth. The
more pixels (picture elements) on the screen, the more detailed the image. VGA,
S-VGA, XGA, S-XGA and U-XGA are terms describing graphics resolution and
