What are Switchers? How are they used? Categories Cross Reference Table

	Step 3: Categories
	After determining the input and presentation display device, you can figure out which switcher is best for your application. Extron switchers are organized in the following categories:   • Audio/Video Switchers There are Extron A/V switchers for composite video, S-video, component, SDI, and/or stereo audio with any number of inputs to choose from. With the ability to accept NTSC, PAL, and SECAM formats, these switchers provide worldwide compatibility.   • Computer & RGB Switchers Extron VGA and RGB switchers are designed for routing computer-video signals. They are available in dedicated models that feature VGA (15-pin HD) or BNC input and output connectors.   • MediaLink™ Extron MediaLink Switchers (MLS) enable system expansion when more inputs are required than what the projector can handle. MediaLink Switchers are designed to be used in conjunction with the MLC 206 MediaLink Controller to facilitate low-cost integration. They can also be used as stand-alone switchers.   • Media Presentation Switchers Extron Media Presentation switchers merge independent VGA with stereo audio switchers, S-video with stereo audio switchers, and composite video with stereo audio switchers into a single enclosure. With a built-in Program Audio and microphone mixer, these switchers are ideal for small, one-projector presentation environments.   • System Switchers Extron System switchers are compatible with all types of digitally controlled projectors and accept virtually all source signals. With system switchers, it's easy to switch between computers, A/V components, and audio sources. System switchers communicate with and are recognized by the projector as if the switcher were the same brand as the projector.