ISM 482 Integrated Scaling Matrix Switcher • Introduction 1
Introduction
This section describes:
• About This Guide
• About the Switcher
• Features
About This Guide
This manual contains installation, configuration, and operating information for the Extron
ISM482 Integration Scaling Matrix Switcher.
In this manual, the terms “switcher” and “ISM” are used interchangeably to refer to the
ISM482.
About the Switcher
The ISM 482 is an eight-input, two-independently-scaled-output, video and stereo or mono
audio matrix switcher. Figure 1 on the next page shows a typical ISM 482 application. The
switchers accept high resolution RGB video, YUV (component) video, S-video (Y/C), and
composite video inputs; scale the inputs; and output RGBHV or RGBS video and stereo
audio. Triple-Action Switching™ (RGB delay) blanks the screen during the switch to prevent
distracting video glitches. The switcher’s two independent scalers permit differing video
formats on each input to be displayed in different resolutions on different projectors.
Each video input is individually configurable to allow for different video formats. The ISM
allows analog RGBHV, RGBS, RGsB, and RGBcvS video, component video, S-video, and
composite video signals to be displayed on a device with a fixed resolution and aspect ratio,
such as a liquid crystal display (LCD) projector, digital light processor (DLP) projector, or
plasma display.
The ISM provides two separate outputs. The selected input can be switched to either or
both outputs. With an optional DVI output card, the ISM converts the scaled image to DVI
as an additional set of output 1 signals.
The switcher inputs all valid video signal formats on eight sets of five BNC connectors. The
ISM 482 scales the input up or down to a wide variety of output resolutions and rates. The
switcher outputs the scaled video, as RGBHV or RGBS, on two sets of output connectors,
consisting of five BNCs and a 15-pin HD connector. These connectors share identical
outputs.
Several of the output resolutions and rates include the Extron Accu-RATE Frame
Lock™ (AFL™), a proprietary technology that locks the output frame rate to the refresh
rate of input 1, solving the image tearing problem that can result from different input
and output rates. The switcher features HDTV 576p, 720p, 1080p, and 1080i outputs.
