Terms and definitions, Brief introduction – RGBLink RMS 5533 User Manual
Page 14

1. Brief Introduction
Terms and Definitions
RMS 5533 User Manual 14
The following terms and definitions are used throughout this guide; 
 
 
“ASCII”: American Standard for Information Interchange. The standard
code consisting of 7-bit coded characters (8 bits including parity check) 
used to exchange information between data processing systems, data 
communication systems, and associated equipment. The ASCII set 
contains control characters and graphic characters. 
 
 
“Aspect ratio”: The relationship of the horizontal dimension to the
vertical dimension of an image. In viewing screens, standard TV is 4:3, 
or 1.33:1; HDTV is 16:9, or 1.78:1. Sometimes the ―:1‖ is implicit, 
making TV = 1.33 and HDTV = 1.78. 
 
 
“AV”: Audio visual or audio video.
 
 A 
“Background” is an unscaled source, typically originating from a
computer. A background source appears at the system’s lowest priority 
— visually in back of all other sources. 
 
  
“Baudrate”:Named of J.M.E. Baudot, the inventor of the Baudot 
telegraph code. The number of the electrical oscillations per second, 
called baud rate. Related to, but not the same as, transfer rate in bits 
per second (bps).  
 
 
“Blackburst”: The video waveform without the video elements. It
includes the vertical sync, horizontal sync, and the chroma burst 
information. Blackburst is used to synchronize video equipment to 
align the video output. One signal is normally used to set up an entire 
video system or facility. Sometimes it is called House sync. 
 
 
“BNC”: Bayonet Neill-Concel man. A cable connector used extensively
in television and named for its inventors. A cylindrical bayonet 
connector that operates with a twist-locking motion. To make the 
connection, align the two curved grooves in the collar of the male 
connector with the two projections on the outside of the female collar, 
push, and twist. This allows the connector to lock into place without 
tools. 
 
 
“Brightness”: Usually refers to the amount or intensity of video light
produced on a screen without regard to color. Sometimes called ―black 
level. 
 
 
―CAT 5‖: Category 5. Describes the network cabling standard that
consists of four unshielded twisted pairs of copper wire terminated by 
RJ-45 connectors. CAT 5 cabling supports data rates up to 100 Mbps. 
CAT 5 is based on the EIA/TIA 568 Commercial Building 
Telecommunications Wiring Standard. 
 
 
“Color bars”: A standard test pattern of several basic colors (white,
yellow, cyan, green, magenta, red, blue, and black) as a reference for 
system alignment and testing. In NTSC video, the most commonly 
used color bars are the SMPTE standard color bars. In PAL video, the 
most commonly used color bars are eight full field bars. In the 
