Nokia 221 T owner manual Glossary of terms

Glossary of terms

Access code

A four-digit code stored in the Mediamaster. Used to lock/unlock the Mediamaster.

Access control

A feature that allows parents to ”lock” programmes that they consider unsuitable for children. A ”locked” chan- nel or programme can only be ”unlocked” with the spe- cial access code.

ADM

Audio Description Module

AGC

Automatic Gain Control.

BER

Bit Error Rate. Signal quality measure.

CI

Common Interface

C/N

Carrier to Noise. Signal quality measure

DVB

The Digital Video Broadcast group was created to estab- lish a technical framework for the introduction of digital video broadcasting systems.

GHz

The prefix giga means billion, and Hertz means cycles per second. Signals in the GHz range are often called micro- waves.

MHz

The prefix mega means million, and Hertz means cycles per second.

MPEG

Moving Picture Experts Group. Established by the Inter- national Standards Organisation to provide the basis for a picture coding and compression system.

PCM

Pulse Code Modulation. Non-compressed digital audio format.

PCR

Program Clock Reference.

PID

Packet Identifier.

RCA

Coaxial connector used to connect the Mediamaster to an external amplifier.

RF

Radio frequency (known as HF in some countries).

RGB

Red, Green, Blue. Colour signals are routed in separate cables in order to provide a high quality TV picture.

SERIAL RS 232

A serial communication standard data port.

SCART

A21-pin connector used for connection of the Mediamaster,VCR and TV. Also named Euroconnector or Peritel connector.

S/PDIF

Sony/Philips digital interface format. Digital audio output.

SW

Software. Programme code.

TS

Transport stream.

VCR

Video Cassette Recorder.

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