ERMINOLOGY
AT-5/CAT5e
ate
or
5 cable, commonl
known as
at 5, is an unshielded twisted pair t
pe
able desi
ned
or hi
h si
nal inte
rit
. The actual standard de
nes speci
c electrical
roperties o
the wire, but it is mostl
known as bein
rated
or its Ethernet capabilit
o
100 Mbit
s. Its speci
c standard desi
nation is EIA
TIA-568.
at 5 cable t
picall
has 3
twists per inch o
each twisted pair o
24
au
e copper wires within the cable.
AT-5e
is similar to
at 5 cable, but is enhanced to support speeds o
up to 1000 Me
abits
sec.
DDW
Di
ital Displa
Workin
Group DDWG are the creators of the DVI specifi cation.
DVI
Di
ital Visual Inter
ace. A di
ital video standard established b
DDW
, desi
ned to
arr
uncompressed di
ital video si
nals to a Displa
.
HDMI
The Hi
h-Definition Multi-media Interface
HDMI
is an industr
-supported,
ncompressed, all-di
ital audio/video interface. HDMI provides an interface between
an
compatible di
ital audio/video Source, such as a set-top box, DVD pla
er, and
A
V receiver and a compatible di
ital audio and
or video monitor, such as a di
ital
television
DTV
.
HDC
i
h-Bandwidth Di
ital Content Protection. Created b
Intel, HDCP is used with HDTV
i
nals over HDMI and HDMI connections and on D-Theater D-VHS recordin
s to
revent unauthorized duplication of cop
written material.
HDTV
i
h-De
nition Television. The hi
h-resolution subset o
our DTV s
stem. The AT
de
nes HDTV as a 16:9 ima
e with twice the horizontal and vertical resolution o
our
xistin
s
stem, accompanied b
5.1 channels o
Dolb
Di
ital audio. The
EA de
nes
DTV as an ima
e with 720 pro
ressive or 1080 interlaced active
top to bottom
scan
ines. 1280:720p and 1920:1080i are t
picall
accepted as hi
h-def scan rates.
HPD
ot Plu
Detect. HPD is an electronic status si
nal which is used to si
nal the presence
o
absence o
a Displa
device on the output o
a di
ital audio
video inter
ace, usuall
an A
V media pla
er, scaler, splitter, etc.
EDID
Electronic Data Information Displa
. EDID is an electronic ID containin
the capabilities
of an audio/video output device such as an HDTV. Source devices will read the EDID
of a Displa
or output device in order to know what resolution
s
should be used to
draw a picture and how man
channels to use when pla
in
audio.
D
Displa
Data
hannel. Provides in
ormation which allows renderin
o
a video picture.
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