Runco VX-6C RGB Video, RS-232, RS-422, Scan Frequency, Scan Line, Slidebar, Source Setup

									GLOSSARY
RGB Video	The video output (analog or digital) of most computers. Analog RGB video can have 3, 4,
	or 5 wires - one each for red, green, and blue, and either none, one or two for sync. For
	three-wire RGB, the green wire usually provides sync. (See TTL Video).
RS-232	A common asynchronous data transmission standard recommended by the Electronics
	Industries Association (EIA). Also called serial communication.
RS-422	A less common asynchronous data transmission standard in which balanced differential
	voltage is specified. RS-422 is especially suited to long distances.
S-Video	The output from certain video tape players and video equipment. S-Video separates sync
	and luminance from color information, typically producing a higher quality display than
	composite video.
Scan Frequency	The horizontal or vertical frequency at which images are generated.
Scan Line	One horizontal line on the display.
SECAM	A video output format of some video tape and disc players (used primarily in France).
	SECAM (Sequential Couleur á Mémoire) signals are similar in resolution and frequency
	to PAL signals. The primary difference between the two standards is in the way color
	information is encoded.
Slidebar	A slidebar is a graphical display of an adjustable setting. The numerical setting often rep-
	resents a percentage but can be a specific unit such as degrees Kelvin.
Source	The device, such as a computer or VCR, connected to the projector for display. A source
	is identified at the projector as		,	Input2	,	Input3	, or	Input4	, or as other user-defined num-
		Input1
	bers. A source may have numerous corresponding channels defined and recognized by the
	projector. See Input.
Source Setup	See Channel.
Spot Size	The diameter of the smallest dot that can be generated by a CRT projector. This projector
	has a fixed spot (pixel) size.
Sync	This term refers to the part of the video signal that is used to stabilize the picture. Sync
	can occur in three forms:
	1) "Composite sync": the horizontal and vertical components are together on
	one cable.
	2) "Sync-on-green": the sync is part of the green video.
	3) "Separate sync" or "H.SYNC and V.SYNC": the horizontal and vertical
	components of the sync are on two separate cables.
Sync Width	The duration of each sync pulse generated by a computer. The sync width is part of the
	blanking time.
TTL Video	A type of RGB video with digital characteristics.
Terminated	A wire connecting a single video source to a display device, such as a projector, must be
	terminated by a resistance (usually 75Ω for video).

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