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CHAPTER 10: GLOSSARY
10.1 VIDEO AND KVM TECHNOLOGY TERMS
AES/EBU: Digital audio standard that is officially known as AES3 and that is used for carrying digital audio signals between
devices.
CATx: Any CAT5e, CAT6, CAT7 cable.
CGA: Color Graphics Adapter (CGA) is an old analog graphic standard with up to 16 displayable colors and a maximum resolution
of 640 x 400 pixels.
Component Video: Component Video (YPbPr) is a high-quality video standard that consists of three independently and separately
transmittable video signals, the luminance signal and two color difference signals.
Composite Video: Composite Video is also called CVBS and it is part of the PAL TV standard.
CON Unit: Component of a KVM Extender or Media Extender to connect to the console (monitor[s], keyboard and mouse; optionally
also with USB 2.0 devices).
Console: Keyboard, mouse and monitor.
CPU Unit: Component of a KVM Extender or Media Extender to connect to a source (computer, CPU).
CVBS: The analog color video baseband signal (CVBS) is also called Composite Video and it is part of the PAL TV standard.
DDC: Display Data Channel (DDC) is a serial communication interface between monitor and source (computer, CPU). It allows a
data exchange via a monitor cable and an automatic installation and configuration of a monitor driver by the operating system.
DisplayPort: A VESA standardized interface for an all-digital transmission of audio and video data. It is differentiated between the
DisplayPort standards 1.1 and 1.2. The signals have LVDS level.
Dual Access: A system to operate a source (computer, CPU) from two consoles.
Dual Link: A DVI-D interface for resolutions up to 2560 x 2048 by signal transmission of up to 330 MPixel/s (24-bit).
Dual-Head: A system with two video connections.
DVI: Digital video standard, introduced by the Digital Display Working Group (http://www.ddwg.org). Single Link and Dual Link
standards are distinguished. The signals have TMDS level.
DVI-I: A combined signal (digital and analog) that allows running a VGA monitor at a DVI-I port—in contrast to DVI-D (see DVI).
EGA: The Enhanced Graphics Adapter (EGA) is an old analog graphic standard, introduced by IBM in 1984. A DB9 connector is used
for connection.
Fiber: Single-mode or multimode fiber cables.
HDMI: An interface for an all-digital transmission of audio and video data. It is differentiated between the HDMI standards 1.0 to
1.4a. The signals have TMDS level.
KVM: Keyboard, video and mouse.
Mini-XLR: Industrial standard for electrical plug connections (3-pole) for the transmission of digital audio and control signals.
Multimode: 62.5μ multimode fiber cable or 50μ multimode fiber cable.
OSD: The On-Screen Display is used to display information or to operate a device.
Quad-Head: A system with four video connections.
RCA (Cinch): A non-standard plug connection for transmission of electrical audio and video signals, especially with coaxial cables.
S/PDIF: A digital audio interconnect that is used in consumer audio equipment over relatively short distances.
SFP: SFPs (Small Form Factor Pluggable) are pluggable interface modules for Gigabit connections. SFP modules are available for
CATx and fiber interconnect cables.
Single Link: A DVI-D interface for resolutions up to 1920 x 1200 by signal transmission of up to 165 MPixel/s (24-bit). Alternative
frequencies are Full HD (1080p), 2K HD (2048 x 1080) and 2048 x 1152.
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