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SVS 100
Seamless Video Switcher
68-496-01
Printed in the USA
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Precautions Warning Safety Instructions • English Power sources • This equipment should be operated only from the power source indicated on the product. This equipment is intended to be used with a main power system with a This symbol is intended to alert the user of important operating and maintenance grounded (neutral) conductor. The third (grounding) pin is a safety feature, do not attempt (servicing) instructions in the literature provided with the equipment. to bypass or disable it. Power d
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Quick Start — SVS 100 Installation Drill pilot holes — 3/32” (2.4mm) diam. two mounting screws 1/4” (6.3 mm) deep on each side Step 1 rack-mount bracket Turn off power to the SVS 100 and all other devices that will be connected. Step 2 or If the SVS 100 is to be rack or table/wall mounted, position the brackets and insert the mounting screws, as shown on the right. table/ Step 3 wall-mount four #8 screws bracket on each side Using Inputs 1, 2, 3, and 4, attach up to four Rack or Table/Wall Mount
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Quick Start — SVS 100, cont’d Fade Fade Front Panel Cut Dissolve to from Black Black Operation The SVS 100 displays an assortment of menus on its LCD screen. By rotating the encoder knob, the Effects, Genlock, Picture Controls, and Audio operations can be adjusted. Input Press an input button to select a video input source. Effects Figure 1 — Switching Effects Pressing the effect button and rotating the encoder knob will select from among several video CUT switching effects. See figure 1
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Table of Contents Chapter 1 • Introduction ................................................................................. 1-1 About the SVS 100............................................................................................... 1-2 SVS 100 Features.................................................................................................. 1-3 Chapter 2 • Installation .......................................................................................................... 2-1
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Table of Contents, cont’d Chapter 5 • Serial Communication ................................................................................. 5-1 Remote Control Port (RS-232/RS-422) ....................................................................... 5-2 Host-to-SVS 100 Communication ................................................................................ 5-2 SVS 100-initiated messages ............................................................................................... 5-2 U
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Seamless Video Switcher Chapter One 1 Introduction About the SVS 100 SVS 100 Features
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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 nee
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SVS 100 Features Four NTSC or PAL video inputs — • 2 S-video or composite video inputs — 2 rear panel, 4-pin mini-DIN connectors (Input 1 and Input 2) accept luminance (Y) and chrominance (C) input. Alternately, 2 rear panel BNC connectors accept composite video input. The video inputs can be specified through a menu system, as either Auto, Video, or S-video. Auto will automatically select the active input. If S-video and composite video are both input, the SVS 100 will automatically select
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Introduction, cont’d SVS 100 Introduction 1-4
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Seamless Video Switcher Chapter Two 2 Installation Mounting the SVS 100 Cabling and Rear Panel Views Genlock and Vertical Interval Switching SVS 100 Introduction
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Installation Mounting the SVS 100 The SVS 100 Seamless Video Switcher comes with two sets of mounting brackets. One set is for mounting the switcher under a table or against a wall, and the other set is for rack mounting. Table or wall mounting The table/wall mounting brackets extend approximately 1/4” (6.3 mm) above the top surface of the SVS 100 enclosure. This design allows for an air space between the enclosure and the surface on which it is mounted. Table or wall mount the switcher as fol
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Rack mounting Rack mount the switcher as follows: 1. Attach the rack mount brackets to the switcher with eight #8 machine screws, provided (see figure 2-1). 2. Insert the switcher into the rack, align the holes in the mounting bracket with those of the rack. 3. Secure the switcher to the rack using the supplied machine screws. Cabling and Rear Panel Views All connectors are on the rear panel (see figures 2-2, 2-3, and 2-6). Power connection 3 2 2 2 3 2 IN IN IN IN OUT OUT OUT OUT INPUT 1 INPUT
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Installation, cont’d 6 GENLOCK IN OUT A INPUTS OUTPUT RS-232/422 LR 1 LR 2 LR3 LR4 LR 1 BC REMOTE OUTPUT 6 7 8 8 8 8 9 Figure 2-3 — Switched video outputs, and audio inputs and outputs Output A and Output B, composite video outputs — Connect composite 6 video display, recording, or transmission devices to these BNC connectors. The outputs of the two connectors are identical to each other and to the decoded S-video output . 7 Output C, S-video output — Connect an S-video display, recording or
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Connect the sleeve to ground (Gnd). Connecting the sleeve to a negative (-) terminal will damage the audio output circuits. By default, the audio output follows the video switch. Audio breakaway, commanded via the Windows-based control program or under RS-232/RS-422 control, allows the user to select from any one of the four audio input sources. See to chapter 5, Serial Communication, for details. Genlock connections A genlock device (black burst generator) can be connected to the SVS 100 via
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Installation, cont’d If the genlock connectors are used only for vertical interval switching, no horizontal or subcarrier phase adjustments are required, and the Burst Lock LED on the front panel does not light (see Genlock controls and indicators in chapter 3). Genlock setup Genlock differs from simple vertical interval switching in that an external device (a black burst generator) generates a reference sync signal for the system, and every device that uses that signal has its output signal’s h
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rotating the encoder knob (see Encoder knob in the next chapter). Adjust the horizontal phase until there is no (0°) difference between the composite video output’s horizontal sync phase and the genlock signal’s horizontal phase. See the Oscilloscope displays section. 7. Set the scope to view the subcarrier signals. Press the SVS 100’s Sub Phase button for 2 seconds (see the Operation chapter) and adjust the sub phase by rotating the encoder knob until there is a zero phase difference between
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Installation, cont’d With this method there is no way to know if the signals are 180º out of phase. A delayed sweep on a time-based scope would allow a more accurate display of the input and output signal phase relationships. A vectorscope is more accurate than a waveform monitor. Figure 2-8 shows an example of a vectorscope display when the horizontal phase is adjusted to align it with the burst (genlock) vector. Adjust the horizontal phase by rotating the encoder knob until the difference b
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Seamless Video Switcher Chapter Three 3 Operation Front Panel Controls and Indicators Optimizing the Video and Audio Inputs MVP 104 Installation
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Operation Front Panel Controls and Indicators The front panel (see figure 3-1 and figure 3-2) features all of the direct access controls and indicators, including video input selection, switching effects, picture controls, genlock controls, top and bottom blanking, audio level, an encoder knob for making adjustments, and an LCD display. The front panel controls (but not the Input buttons) may also be disabled through the Executive mode command (see the Executive Mode section in this chapter). I
