Dreambox DM 7000-S Instruction Manual page 64

20. Glossary of terms
RGB
Red, Green, Blue. Colour model in which the colour is defined by the propor-
tions of red, green and blue. Other colour models: CMY, HSV, HLS. Also the
name for a particular monitor signal, since monitors have electron beams for
red, green and blue, and can thus be directly controlled.
RS232
A widely used interface between computers and other serial devices such as
modems, printers and mice. Software updates can be fed in over the RS232
connection (for Windows computers, the COM interface).
Scart
21-pole cable connection for pcture and sound transmission, for example
from the satellite receiver of video recorder to the television. The usual con-
nection between television and video recorder, it is also used to connect the
set-top box with both of these units. Picture and sound can be placed back
and recorded in this way.
Smartcard
Similar to a credit card, used with the CA module of the set-top box, it makes
possible participant identification and access control for an encrypted Pay-TV
or TV channel.
SNR
Signal to Noise Ratio.The difference between the signal level and the noise on
an information channel..
SCPC
Single Channel Per Carrier – transmission system (digital or analog) which
uses a separate carrier for each each channel on a transponder (see also
MCPC).
S/PDIF
Sony/Philips Digital Interface Format. Definition of an interface and a protocol
for digital audio data, used in consumer equipment.
Symbolrate
Parameter for digital reception. Represents the data transmission rate for an
MCPC or SCPC signal, and is stated in Megasymbols per second (MS/s). The
symbol rate represents the speed with which data is transmitted. The receiver
must synchronise itself to this speed. MCPC channels usually operate with a
symbol rate of 27,500, and SCPC channels with symbol rates between 4,000
and 7,000.
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20. Glossary of terms