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General Description > List of Abbreviations and Terms for Surveillance System
M
P
R
S
T
U
V
MPEG
MPEG2
MPEG Audio
Layer II
PC card
Progressive
scan CCD
Sensor
Protocol
RAID
RJ-45
RS-232C
RS-485
SCSI
ScTP
SIF
STP
SXGA
Twisted Pair
Cable
UTP
VBR
VGA
Moving Picture Experts Group: Standard related to compression of video (movie) and
audio. There are four types of MPEG - MPEG1, MPEG2, MPEG4 and MPEG 7 -
depending on the compression method and image quality.
Moving Picture Experts Group Phase 2: A higher standard of MPEG which is applied to
video (movie) requiring higher quality.
One of three audio compression standards (layers I-III) defined by MPEG.
Standard card type expansion device that is inserted into a slot for PC card. JEITA and
PCMCIA (Personal Computer Memory Card International Association) are cooperating to
perform standardization. There are three types of cards - TYPE I, II and III - depending
on differences in functions and thickness. The PC card is also referred to as a PCMCIA
card.
This CCD image sensor scans an image once to create a one-image signal. Also referred
to as a non-interlaced CCD sensor.
Procedure, regulations and conventions for data communications.
Redundant Array of Independent Disks: This technique arrays multiple hard disks and
then uses them as one disk to decentralize accesses, thereby enhancing reliability and
process speed. There are seven types of RAID - RAID0-RAID6.
8-pole, 8-core connector used for communication cable.
Recommended Standard 232 version C: One of the serial communication standards
established by EIA. Communication standard for one-to-one connections only. 25-pin or
9-pin D-SUB connectors are used.
Recommended Standard 485: One of serial communication standards established by EIA.
This standard complies with multiple-to-multiple connections of up to 32 units. 25-pin D-
SUB connectors are normally used.
Small Computer System Interface: A standard for connecting computer and peripheral
devices. The number, First, Ultra, Wide, etc., prefixed or suffixed to SCSI indicates the
data transfer rate and connector specifications.
Screened Twisted Pair: One type of twisted pair cables. Only the inside of the outermost
sheath in this twisted pair cable is shielded. Noise resistance characteristics are superior
to UTP.
Standard Image Format: This format delivers the resolution of 320 horizontal × 240
vertical pixels.
Shielded Twisted Pair: One type of twisted pair cables, with each pair shielded. Noise
resistance characteristics are superior to UTP or ScTP.
Super eXtended Graphics Array: An expanded specification of XGA, with resolution of
1280 horizontal × 1024 vertical pixels.
One type of communication cables: Two sheathed cables are twisted into one pair, which
is further sheathed. 4 pairs of cables twisted and sheathed are normally used for
communication cables.
Unshielded Twisted Pair: One type of twisted pair cables, without shield. Noise
resistance characteristics are inferior to ScTP.
Variable Bit Rate: This format of coding audio and video varies the amount of data
depending on the subject image.
Video Graphics Array: The resolution is 640 horizontal × 480 vertical pixels.
Index
Abbreviation/
Term
Explanation
