Introduction
About the SVS 100
Extron’s SVS 100 Seamless Video Switcher is a four-input, one output switcher that provides low-cost seamless switching for applications such as video conferencing, distance learning, staging and video editing, without the need for expensive genlock equipment. The switcher inputs can be NTSC or PAL. The SVS 100 seamlessly switches among the inputs using digital switching effects, such as cuts, wipes, dissolves, and fades. These special effects eliminate the need for expensive genlock equipment. If necessary, the SVS 100 can sync to an external black burst signal for broadcast applications.
The switcher can accept inputs from up to four video sources, such as VCRs, DVD players, laser disk players, CODECs, and document cameras (see figure 1-1). Two of the inputs autoselect between S-video or composite video, with S-video as the priority. The remaining two inputs are composite only. Each input is buffered and output on an adjacent connector.
S-video inputs are encoded to composite, and composite video inputs are decoded to S-video. Three NTSC or PAL video outputs (two composite and one S-video) allow multiple displays of the switched video signal without the need for a distribution amplifier.
PC Computer
RS-232 Control
R 4 L
2 L R 1 L
IN | Videoconferencing System |
IN
SVS 100
LCD Projector
Video Camera | VCR | Document Camera | VCR |
Figure 1-1 — Typical SVS 100 application
The switcher’s color, tint, brightness, and contrast controls can be adjusted to correct for differences between source inputs. Extron’s exclusive variable horizontal blanking feature allows the operator to mask the top and bottom of each image.
By default, the audio input follows the video switch. Audio breakaway, commanded via the Windows-based control program or under RS-232 control, allows the user to select from any one of the four audio input sources.
1-2 SVS 100 Introduction
