Kramer Electronics VP-61xl - Manual (Page 3)

KRAMER ELECTRONICS LTD. 2
1 INTRODUCTION
Congratulations on your purchase of this Kramer switcher. 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 switcher, such as the one you have just purchased, Kramer
also offers a full line of high quality distribution amplifiers, processors,
interfaces, controllers and computer-related products. This manual includes
configuration, operation and option information for the VP-61xl
VGA/XGA/Audio switcher. The VP-61N is identical to the VP-61xl but it does
not include the audio channels.
1.1 A Word on VGA/XGA/Audio Switchers
VGA/XGA/Audio Switchers route signals to one or more selected users. They
vary in the number of inputs, looping capability, programming capability, number
of outputs, operating format, bandwidth and input/output coupling.
VGA/XGA/Audio Switchers are used to select which source is to be switched to
which acceptor for recording or monitoring, with no discernible signal
degradation. A good quality VGA/XGA/Audio Switcher amplifies the incoming
signal, pre-compensates the signal for potential losses (resulting from the use of
long cables, noisy source, etc.) and routes the signal(s) to buffered and amplified
outputs. Often, a signal processor is inserted between the source and the
VGA/XGA/Audio switcher for correction and fine-tuning of the source signal
before routing. The front panel of this Kramer switcher is designed to be simple
to operate. The machine described in this manual switches one of several PC's to
a monitor. It is RS232 controlled for remote PC operation. It excels in high source
isolation for minimal crosstalk and very large bandwidth.
1.2 Handling Graphics Signals
A computer generated graphics signal is usually comprised of 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, as they are not relevant.)
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 the graphics resolution
and the color depth. Color depth represents the maximum number of