Ericsson RX8000 SPI, TDM, TDT, TOT, TSP, SNTP, TAXI, TSDT, TCP / IP, Temporal, Redundancy, Redundancy, Time stamp, Statistical, Packet Header, Transport Stream

Annex A

SNTP	Simple Network Time Protocol is an Internet protocol used to
	synchronize the clocks of computers to some time reference. It is a
	simplified version of the protocol NTP protocol which is too
	complicated for many systems.

Spatial Redundancy Information repetition due to areas of similar luminance and/or chrominance characteristics within a single frame. Removed using DCT and Quantization (Intra-Frame Coding).

SPI	Synchronous Parallel Interface.
Statistical	Data tables are used to assign fewer bits to the most commonly
Redundancy	occurring events, thereby reducing the overall bit rate. Removed
	using Run Length Coding and Variable Length Coding.
TAXI	Transparent Asynchronous Tx / Rx Interface: A proprietary high
	speed data interface.
TCP / IP	Transmission Control Protocol/Internet Protocol: A set of
	communications protocols that may be used to connect different
	types of computers over networks.
TDM	Time Division Multiplex: One common, communications channel
	carrying a number of signals, each with its own allotted time slot.
TDT	Time and Date Table: Part of the DVB Service Information. The TDT
	gives information relating to the present time and date.
Temporal	Information repetition due to areas of little or no movement between
Redundancy	successive frames. Removed using motion estimation and
	compensation (Inter-Frame Coding).
Time stamp	A term that indicates the time of a specific action such as the arrival
	of a byte or the presentation of a presentation unit.
TOT	Time Offset Table: This optional SI table supports the use of local
	offsets as well as the UTC time/date combination. The purpose of
	the table is to list by country the current offset from UTC and the
	next expected change to that offset (to track when daylight saving
	occurs). The offset resolution is to within 1 minute over a range of
	±12 hours from UTC.
Transport Stream	A set of packetised elementary data streams and SI streams, which
	may comprise more than one programme, but with common
	synchronization and error protection. The data structure is defined in
	ISO/IEC 13818-1 [1] and is the basis of the ETSI Digital Video
	Broadcasting standards.
Transport Stream	A data structure used to convey information about the transport
Packet Header	stream payload.
TS	Transport Stream.
TSDT	Transport Stream Descriptor Table: A component of the MPEG-2
	PSI data. This table describes which type of Transport stream it is in
	(i.e. DVB, ATSC etc.). It may also contain other descriptors.
TSP	Transport Stream Processor.
U	44.45 mm (rack height standard).

A-18 EN/LZT 790 0005 R1A