Christie Roadster S+12K User Manual page 152

Glossary
Rise Time
RGB Video
RS232
RS422
S-Video
Scan Frequency
Scan Line
Scan Rate
SECAM
Slidebar
Source
Source Setup
Switcher
Sync Width
TTL Video
A-6

The time required by the video amplifier of the projector to increase its output from
10% to 90% of the maximum value.

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).

A common asynchronous data transmission standard recommended by the
Electronics Industries Association (EIA). Also called serial communication.

A less common asynchronous data transmission standard in which balanced
differential voltage is specified. RS422 is especially suited to long distances.

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.

The horizontal or vertical frequency at which images are generated. Also known as
scan rate or refresh rate.

One horizontal line on the display.

The horizontal or vertical frequency at which images are generated.

A video output format of some video tape and disk 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.

A slidebar is a graphical display of an adjustable setting. The numerical setting often
represents a percentage but can be a specific unit such as degrees Kelvin.

The device, such as a computer or VCR, connected to the projector for display. A
source may have numerous corresponding channels defined and recognized by the
projector. See Input.

See Channel.

A signal selector that can be connected to a projector for the purpose of adding more
sources.

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.
"Sync-on-green": the sync is part of the green video.
2)
3) "Separate sync" or "H.SYNC and V.SYNC": the horizontal and vertical
components of the sync are on two separate cables.

The duration of each sync pulse generated by a computer. The sync width is part of
the blanking time.

A type of RGB video with digital characteristics.
Roadster & Mirage S+/HD User Manual
020-100002-04 Rev. 1 (12-2008)