Specifications

Glossary
94
O
OSD – On Screen Display.
Optical Digital Dudio – optical digital cables use the Toslink connector, these use pulses of light to
transmit digital audio data. Optical uses light thus it is immune to interference from electromagnetic and
radio frequencies.
P
PAL – Phase Alternation Line, this is the video standard used most commonly in Europe. PAL uses 625
lines to make up a TV picture and scans at 50Hz.
PCM – Pulse Code Modulation, digital bitstream audio format commonly supporting 16 bit up to 48 KHz
sampling frequency in stereo.
Pixel - Short for Picture Element, Pixels are the tiny dots of information that make up a digital image. The
more pixels there are on the camera’s image sensor (CCD or CMOS) or display, the higher the image
resolution will be.
Progressive Scan – a sales term for describing de-interlaced video.
PVR – Personnel Video Recorder, a device that records video without videotapes or discs.
Pass Through – Video by-pass output; outputs an additional copy of the original input signal.
R
Receiver (RX) – receives AV signal through various interconnects after being sent by compatible
transmitter.
RCA – Recording Company of America, RCA (or Phono) is the standard way of connecting audio and
video components.
RGB - Stands for red, green and blue. A video connector or lead which offers RGB output carries these
primary colours separately for greater picture quality.
RJ45 - The RJ45 is a connector used on CAT cabling for connecting computers and other devices to
local area networks (LANs).
RS-232 - is a voltage loop interface for two-way (full-duplex) communication.
Resolution - The amount of pixels in an image. The higher the resolution, the more detailed the picture
will be.
S
Secam - The French broadcast system. Sequential Coleur A Memoire uses 625 lines scanned at 50Hz.
S-Video - A high quality video connection which offers better picture quality than standard composite
video. S-Video cables have round, mini four-pin plugs and sockets.
Sampling Rate – Sampling is the process of converting the heights of a sound wave (analog signal)
taken and converted at set periods into digits (digital encoding). Sampling frequency is the number of
samples taken per second, so larger numbers mean more faithful reproduction of the original sound.
CYP A5 brochure 2011 QU…XA v2.indd 36 17/1/11 13:19:38