Hall Research Technologies, Inc. VSM-802B 8 x 2 Video Matrix Switch With Serial Keypads and Long Cable Compensation CUSTOMER SUPPORT INFORMATION Order toll-free in the U.S. 800-959-6439 FREE technical support, Call 714-641-6607 or fax 714-641-6698 Mail order: Hall Research Technologies, 1163 Warner Ave., Tustin, CA 92780 Web site: www.hallresearch.com • E-mail: info@ hallresearch.
8x2 Video Matrix Switch TRADEMARKS USED IN THIS MANUAL Hall Research, HRT, and Research Technologies, Inc. (logo) are trademarks of Hall Apple and Macintosh are registered trademarks of Apple Computer, Inc. IBM is a registered trademark of International Business Machines Corporation. SGI is a registered trademark of Silicon Graphics, Inc. Sun and Sun Microsystems are registered trademarks of Sun Microsystems, Inc. in the United States and other countries.
8x2 Video Matrix Switch FEDERAL COMMUNICATIONS COMMISSION AND CANADIAN DEPARTMENT OF COMMUNICATIONS RADIO FREQUENCY INTERFERENCE STATEMENTS This equipment generates, uses, and can radiate radio frequency energy and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication.
8x2 Video Matrix Switch Contents 1. Introduction ....................................................................................... 4 2. Installation and Configuration ........................................................... 5 3. Operation ........................................................................................... 8 3.1 The Switch’s LEDs...................................................................... 8 3.2 Switching with the Keypads ............................................
8x2 Video Matrix Switch 1. Introduction The Model VSM-802B 8 in x 2 out Video Matrix Switch is an ideal tool for sharing and/or switching between the output of as many as eight video sources (such as PCs), in order to display or capture that output at two video destinations (such as monitors). Once you attach all your devices, you can hook the Switch to the included keypads for full switching control.
8x2 Video Matrix Switch 2. Installation and Configuration To set up your VSM-802B 8 x 2 Video Matrix Switch system, take these steps: Making sure that the Switch is powered off, find its input ports. (These are the HD15 connectors on its front panel labeled “INPUT 1” through “INPUT 8.”) Run cabling from these ports to the video-output ports of the PC CPUs or other devices that will be providing the Switch’s video input.
x2 Video Matrix Switch 1. For each of the two outputs there is an 8-position DIP switch on the Video Matrix Switch’s rear panel - labeled “GAIN A” for “OUT A” and “GAIN B” for “OUT B” - that you can use to control the gain applied to the corresponding input signals. For each of the eight inputs, calculate the total lengths of the video cables from the source to each of the two destinations (the devices attached to OUT A and OUT B).
8x2 Video Matrix Switch Figure 3-2. A fully installed Switch system.
8x2 Video Matrix Switch 3. Operation 3.1 The Switch’s LEDs The LEDs on the 8 x 2 Video Matrix Switch’s rear panel, shown in Figure 3-1 at the start of Chapter 2, indicate which of the Switch’s outputs are displaying the video from which inputs, and which outputs have been blanked and aren’t showing anything (see Section 3.3) . There are two rows of eight LEDs, labeled “Channel” and “1” through “8.
8x2 Video Matrix Switch 4. Troubleshooting 4.1 Problem Solving FAQ 1) Fuzzy, blurry, or ghosting image at remote location If you have a stable but somewhat blurry image (object or character edges are not sharp), make sure that you have set the unit’s compensation switches correctly. If you still have a fuzzy image, try reducing the refresh rate and/or resolution of the PC. You should also be sure to use multicoaxial (double shielded) 75 ohm video extension cables for best results.
8x2 Video Matrix Switch 4.2 Calling Hall Research Technologies If you determine that your Switch is malfunctioning, do not attempt to repair the unit. Contact HRT Tech. Support at 714-641-6607. Before you do, make a record of the history of the problem.
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8x2 Video Matrix Switch 6. Addendum 6.1 Switching with or through a Serial Device The VSM-802B has two serial ports, one for each of the keypads. One or both of these ports can be used to control the switch from an external serial device. The serial connectors are DB9-F.
8x2 Video Matrix Switch 6.2 Configuring for Dual-head Display Devices If you are using computers with dual-video outputs, you can configure the VSM-802B to display the video outputs from 4 PC's on to a single dual-head display. Connect the left video output of all PCs to inputs #1 through #4, and the right video outputs to inputs #5 through #8 respectively. Then connect the "A" output from the switch to your left display device and the "B" output to the right one.
8x2 Video Matrix Switch 6.3 Scan Mode The VSM-802 now features a Scan Mode whereby each output can independently cycle through all 8 inputs at a customer specified period. To enter the Scan Mode for a given output, press keys 9 and 10 at the same time on the corresponding keypad. To enter the scan mode from a serial device type: O1S or O2S which forces output 1 or 2 into scan mode respectively (“ “denotes Enter). To Exit Scan Mode, just press any key on the keypad.
8x2 Video Matrix Switch 6.4 Blanking the output Pressing key 9 or key 10 on the keypad will cause the output to be blanked (all LED’s on the keypad will be lit when the output is blanked). To come out of blank mode, just press any 1 through 8 keys on the keypad. Either output can also be blanked from a serial device by issuing a switch command with 0 as input such as: O2I0 NOTE: This is the only method of blanking the output. Please disregard paragraph 3.3 on page 8 of the manual 6.
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