User’s Manual VSW 2VGA A 2-Input, 1-output VGA and Audio Switcher 68-1111-01 Rev.
Precautions Safety Instructions • English This symbol is intended to alert the user of important operating and maintenance (servicing) instructions in the literature provided with the equipment. This symbol is intended to alert the user of the presence of uninsulated dangerous voltage within the product’s enclosure that may present a risk of electric shock. Caution Read Instructions • Read and understand all safety and operating instructions before using the equipment.
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Table of Contents Chapter One • Introduction ................................................... 1-1 About this Manual ..................................................................... 1-2 About the VSW 2VGA A ........................................................... 1-2 Daisy Chaining the VSW 2VGA A .......................................... 1-3 Features ......................................................................................... 1-4 Chapter Two • Installation and Operation ..........
Table of Contents, cont’d ii VSW 2VGA A • Table of Contents
VSW 2VGA A 1 Chapter One Introduction About this Manual About the VSW 2VGA A Daisy Chaining the VSW 2VGA A Features
Introduction About this Manual This manual contains information about the Extron VSW 2VGA A switcher. The terms “VSW 2VGA A” and “switcher” are used interchangeably in this manual. The Extron VSW I AAP interface (part # 70-529-xx), an optional accessory used when several VSW 2VGA A switchers are daisy chained together, is also discussed. About the VSW 2VGA A The Extron VSW 2VGA A is a compact and economical twoinput, one-output VGA switcher with unbalanced stereo audio and 300 MHz (-3 dB) video bandwidth.
Daisy Chaining the VSW 2VGA A Up to ten VSW 2VGA A switchers can be daisy chained together with each switcher's input separately fed and controlled by an optional accessory interface, the VSW I AAP (part #70-529-xx). Figure 1-1 is an example of how several such switcher-interface combinations can be daisy chained together in a boardroom environment.
Introduction, cont’d Features Autoswitching ability — The VSW 2VGA A can detect active sync signals and automatically switch to the highest numbered active input. Furniture mountable — The VSW 2VGA A can be mounted on a rack shelf, under a desk or podium, through a desk or furniture, or to a projector mount, using optional hardware. Daisy chaining — Multiple VSW 2VGA A switchers can be daisy chained together to form a presentation system.
VSW 2VGA A 2 Chapter Two Installation and Operation Installation Overview Mounting the VSW 2VGA A Front Panel Features Rear Panel Features Operation
Installation and Operation Installation Overview To install and set up the VSW 2VGA A for operation, follow these steps: 1 Turn all of the equipment off. Make sure that the video and audio sources (computers, stereos, tape decks, or other devices), the VSW 2VGA A, the output devices (projectors, speakers), and the contact closure control device are all turned off and disconnected from the power source.
• RSU 126 6 inch deep universal rack shelf kit (part #60190-10) • RSB 126 6 inch deep basic rack shelf (part #60-604-10) • RSU 129 9 inch 1U universal rack shelf kit (part #60-19001) • RSB 129 9 inch 1U basic rack shelf (part #60-604-01) • MBU 125 Under-desk mount kit (part #70-077-01) • MBD 129 Through-desk mount kit (part #70-077-02) When mounting the switcher, take cabling and power availability into consideration. Follow the appropriate mounting procedure on the following pages.
Installation and Operation, cont’d 2.
4. Attach the rack shelf to the rack using four 10-32 x 3/4 inch bolts (provided). Insert the bolts through #10 beveled washers, then through the holes in the rack ears and rack, as shown in figure 2-2. 1U Universal Rack Shelf Use 2 mounting holes on opposite corners.
Installation and Operation, cont’d Under-desk mounting 1. Attach the under-desk mounting brackets (MBU 125, part #70-077-01) to the VSW 2VGA A with the four provided machine screws, as shown in figure 2-3. Figure 2-3 — Under-desk mounting brackets 2. Hold the switcher with attached brackets against the mounting surface. Use a soft pencil to mark the location of holes for screws on the desk or other furniture. 3. Drill 1/4 inch (6.
Attach the through-desk mounting brackets (MBD 129, part #70-077-02) to the VSW 2VGA A with the four provided machine screws, as shown in the throughdesk mounting diagram on the next page. 4. Hold the switcher with attached brackets up against the underside of the desk or table. Use a soft pencil to mark the locations of the holes for the screws that will attach the brackets to the desk. 5.
Installation and Operation, cont’d Front Panel Features INPUT 1 1 2 INPUT 2 1 2 VSW 2VGA A 3 4 5 6 7 Figure 2-5 — VSW 2VGA A front panel features a b Input 1 LED indicator — This LED lights green whenever input 1 (video and audio) is selected. Input 2 LED indicator — This LED lights green whenever input 2 (video and audio) is selected. N The LEDs a and b above also serve as power up indicators. When the switcher is powered up, the selected input's LED lights green.
Rear Panel Features POWER 12V .1A MAX VGA IN 1 LOOP OUTPUT VSW 2VGA A AUD OUT CONTACT 1 2 AUTO-SW 1 2 3 4 5 Figure 2-7 — VSW 2VGA A rear panel features a Power connector — Connect the included 12 VDC external power supply to the 2-pole, 3.5 mm captive screw connector. N One power supply can power up to five switchers. See "Power connection" in this chapter.
Installation and Operation, cont’d • Pin 2 selects Input 2 when momentarily connected to ground (pin 3). • Ground connects to the ground wire (equipment ground). 1 2 N Simultaneously connecting both pins 1 and 2 to ground (pin 3) turns autoswitching mode on. Autoswitching — N Autoswitch mode must be disabled when daisy chaining VSW 2VGA A switchers. If the autoswitch mode is enabled, the switchers cannot be daisy chained. N RGsB and RsGsBs inputs and outputs occur in manual mode only.
2. Remove the two screws on each side of the switcher (figure 2-9). Remove the four connector nuts on the front panel of the switcher. Lift the top cover off of the switcher. UT INP 2 GA W UT INP Remove (4) Screws 1 VS A 2V 1 2 Remove (4) Connector Nuts Figure 2-9 — Removing the cover FRONT PANEL JMP1 JMP3 EXTRON 20-881-nn x ER:- yyyyyyyy yyyy JMP4 JMP5 JMP6 Figure 2-10 — VSW 2VGA A jumper locations 3. Set the jumpers for the switcher. See figure 2-11. 4.
Installation and Operation, cont’d OPEN CLOSED All jumpers are set open (disabled) by default. Open or close the indicated jumpers in the table below, as needed, to adjust the appropriate settings. See “Using the VSW I AAP” and “Daisy chain configuration” in this chapter for other jumper settings.
Power connection One power supply can power up to five daisy chained switchers. Additional switchers require one or more power supplies. See "Daisy chain configuration", later in this chapter. Figure 2-12 shows how to wire the power connector. Smooth Ridges A A SECTION A–A 3/16” (5 mm) Max. Power Supply Output Cord (to ground) Captive Screw Connector Figure 2-12 — Power connector wiring C The two power cord wires must be kept separate while the power supply is plugged in.
Installation and Operation, cont’d Operation Apply power and the input signals. The video and audio output connectors, including the Loop Thru Input 1 connector, should output signals. Input selection There are three ways to select between Input 1 and Input 2: • Toggle the front panel input select switch up (Input 1) or down (Input 2). • Use the rear panel contact closure capability. • Press the Show Me button on the VSW I AAP to select the input on the connected VSW 2VGA A switcher.
SHOW ME 1 2 VSW I AAP VSW I AAP VSW I AAP SHOW ME COMPUTER AUDIO SHOW ME VSW I AAP COMPUTER AUDIO VSW I AAP Out Internal Jumper Settings Input 1 Input 2 INPUT 1 INPUT 2 1 2 VSW 2VGA A 12 V Power Supply* VSW 2VGA A Out Jumper Setting JMP1 Closed JMP3 Closed JMP4 Closed JMP5 Open JMP6 Open Figure 2-13 — Single switcher configuration Press the ShowProjector Me button on the VSW I AAP to select the corresponding input on the VSW 2VGA A.
Installation and Operation, cont’d • Configure the jumpers on each VSW 2VGA A according to the following example. • The VSW I AAP is configured for a loop configuration by default. N In a loop configuration, the "show me" feature can be used without a VSW I AAP control panel. Select Input 1 using either the front panel toggle switch (see item c in "Front Panel Features") or the rear panel contact closure control (see item e in "Rear Panel Features") to issue the "show me" control signal.
Figure 2-14 — Loop configuration VSW 2VGA A • Installation and Operation 2-17 SHOW ME VSW I AAP VSW 2VGA A INPUT 2 SHOW ME VSW I AAP INPUT 1 In 1 AUDIO VSW 2VGA A INPUT 2 VSW 2VGA A INPUT 2 SHOW ME VSW I AAP INPUT 1 In 1 AUDIO VSW 2VGA A INPUT 2 VSW 2VGA A INPUT 2 SHOW ME VSW I AAP INPUT 1 In 1 AUDIO VSW 2VGA A INPUT 2 VSW 2VGA A INPUT 2 INPUT 1 In 1 AUDIO SHOW ME VSW I AAP VSW 2VGA A INPUT 2 In 1 VSW 2VGA A INPUT 2 INPUT 1 In 1 AUDIO SHOW ME VSW 2VGA A INPUT
Installation and Operation, cont’d Tree configuration In a tree configuration, the output of each VSW 2VGA A switcher is connected to input 1 or input 2 of the next switcher. This repetition of one switcher's output to another switcher's input can be repeated for up to a maximum of 10 switchers in a daisy chain. The output of the last switcher is connected to a display. Source signals are connected to input 1 and input 2 of each VSW 2VGA A switcher at the top of the tree through a VSW I AAP interface.
1 2 VSW I AAP VSW I AAP 3 SHOW ME AUDIO COMPUTER 4 VSW I AAP SHOW ME VSW I AAP AUDIO COMPUTER VSW I AAP SHOW ME VSW I AAP AUDIO COMPUTER Out COMPUTER AUDIO VSW I AAP Out Input 1 Input 1 B SHOW ME VSW I AAP Input 2 Input 2 INPUT 1 INPUT 1 INPUT 2 1 2 INPUT 2 1 2 VSW 2VGA A VSW 2VGA A B Out 12 V Power Supply* Input 1 Input 2 INPUT 1 INPUT 2 A 1 2 VSW 2VGA A VSW 2VGA A Out 12 V Power Supply * Every switcher connected to Input 1 of another switcher must have its own
Installation and Operation, cont’d 2-20 VSW 2VGA A • Installation and Operation
VSW 2VGA A A Appendix A Specifications, Part Numbers, and Accessories Specifications Included Parts Accessories
Specifications, Part Numbers, and Accessories Specifications Video Gain ������������������������������������������������� Unity Bandwidth �������������������������������������� 300 MHz (-3 dB) Video input and loop through Number/signal type ��������������������� 2 VGA-QXGA RGBHV, RGBS, RGsB*, RsGsBs*, HDTV component video* input 1 VGA-QXGA RGBHV, RGBS, RGsB, RsGsBs, HDTV component video* local monitor loop-through N RGsB, RsGsBs, and HDTV component video inputs and outputs work in manual mode only.
Sync Input type ��������������������������������������� RGBHV, RGBS, RGsB*, RsGsBs*, bi-level and tri-level (HDTV) component video sync Output type ������������������������������������ RGBHV, RGBS, RGsB*, RsGsBs*, bi-level and tri-level (HDTV) component video sync (follows input) Input level �������������������������������������� 1.8 V to 5.0 Vp-p Output level ����������������������������������� TTL: 5.
Specifications, Part Numbers, and Accessories Impedance �������������������������������������� Gain error ��������������������������������������� Maximum level (Hi-Z) ����������������� Maximum level (600 ohm) ����������� 50 ohms unbalanced ±0.1 dB channel to channel >+9 dBV, unbalanced at 1% THD+N >+7 dBV, unbalanced at 1% THD+N Control/remote — switcher Contact closure ������������������������������ (1) 3.
MTBF ����������������������������������������������� 30,000 hours Warranty ����������������������������������������� 3 years parts and labor N All nominal levels are at ±10%. N Specifications are subject to change without notice. Included Parts These items are included in each order for a VSW 2VGA A: Included parts Part number to reorder VSW 2VGA A 60-758-01 12 VDC, 1A external power supply 70-775-01 3.5 mm 3-pole captive screw connector 3.
Specifications, Part Numbers, Accessories, cont’d A-6 Cable Accessories Part number VGA with audio cables 26-490-xx VGA to BNC-5 female cables (SY VGA), 0.5' - 100' (0.15 m - 30.4 m) 26-531-xx VGA to BNC-5 male cables (SY VGA), 0.5' - 100' (0.15 m - 30.4 m) 26-533-xx MSR 6 Adapter, 6" (0.15 m) 26-592-01 3.
VSW 2VGA A • Specifications, Part Numbers, and Accessories A-7
Specifications, Part Numbers, Accessories, cont’d A-8 VSW 2VGA A • Specifications, Part Numbers, and Accessories
Extron Warranty Extron Electronics warrants this product against defects in materials and workmanship for a period of three years from the date of purchase.
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