Extron electronic 3200s manual A-10 Matrix 3200/6400 Series Reference Information

Reference Information, cont’d

establishing the limit to which lines can be distinguished on a test pattern. A larger resolution value means a broader frequency band of the video signal.

C)A measure of the greatest amount of detail that can be seen in an image. Often incorrectly expressed as a number of pixels in a given line; more correctly it is the bandwidth.

RGB – Red, Green, Blue – The basic components of the color television system. They are also the primary colors of light, not to be confused with Cyan, Magenta, and Yellow, the primary pigments. Also called the “Additive Color Process”.

RGB Video – A form of color video signal (red, green, blue) distinctly different from the composite color video used in standard television sets. RGB can be displayed only on a color monitor that has a separate electron gun for each of these primary colors. Some color television sets use only one gun. RGB monitors are noted for their crisp, bright colors and high resolution.

RS-170A– EIA technical standard NTSC color TV.

RS-232– An Electronic Industries Association (EIA) serial digital interface standard specifying the electrical and mechanical characteristics of the communication path between two devices using D-type connectors. This standard is used for relatively short range communications and does not specify balanced control lines.

RS-422– An EIA serial digital interface standard which specifies the electrical characteristics of balanced voltage digital interface circuits. This standard is usable over longer distances than RS-232. Although originally designed for use with 9-pin and 37-pin, D-type connectors, it is often used with others, including 25-pin D-types. It is also used as the serial port standard for Macintosh computers. This signal governs the asynchronous transmission of computer data at speeds of up to 920,000 bits per second.

SECAM – Sequential Couleur Avec Memoiré – Translated as “Sequential Color with Memory”. A composite color transmission system that potentially eliminates the need for both a color and hue control on the monitor. One of the color difference signals is transmitted on one line and the second is transmitted on the second line. Memory is required to obtain both color difference signals for color decoding. This system is used in France, Africa, Asia and many Eastern European countries.

Serial Port – An output on the computer that allows it to communicate with other devices in a serial fashion – data bits flowing on a single pair of wires. The serial port is most often used with RS-232 protocol.

SMPTE – Society of Motion Picture and Television Engineers – A global organization, based in the United States, that sets standards for base-band visual communications. This includes film as well as video standards.

SMPTE Pattern – The video test pattern made up of color, black, and white bands used by television stations.

Software – The programs used to instruct a processor and its peripheral equipment.

Switcher – Term often used to describe a special effects generator; a unit which allows the operator to switch between video camera signals. Switchers are often used in industrial applications to switch between video camera monitoring certain areas for display on a monitor, or system of display devices. These kinds of switchers do not have sync generators.

Sync – In video, a means of synchronizing signals with timing pulses to insure that each step in a process occurs at exactly the right time. For example: Horizontal Sync determines exactly when to begin each horizontal line (sweep) of the electron beam. Vertical Sync determines when to bring the electron beam to the top-left of the screen to start a new field. There are many other types of sync in a video system. (Also called Sync Signal or Sync Pulse.)

A-10 Matrix 3200/6400 Series • Reference Information