KD-MSW4x2 Operating Instructions
Page
KD-MSW4x2 Operating Instructions
Page
Matrix Switching
The KD-MSW4x2 is a Matrix Switcher that accepts up to four inputs from source devices, and can
drive up to two displays.
A “Matrix Switcher” allows the user to select any input source device, and have it available on any
desired output (typically a display). For example, the user may choose to view a DVD player on the
display that is connected to Output 1, and view the satellite box on the display that is connected to
Output 2. A true matrix switcher, the KD-MSW4x2 provides the user with two degrees of freedom:
The ability to select any particular input source device, namely the source devices connected to
Input 1, 2, 3, or 4
These input devices can be chosen separately for Output 1 and Output 2
Distribution Amplifier Application
If desired, the unit also acts as a distribution amplifier, simultaneously routing any single input to
both outputs.
›
›
Terminology
A/V
Audio/Video
Used in reference to the audio and video signals typically
associated with a source device or display
B
Blue
The "blue" video channel
DVR
Digital Video Recorder
For example, a TiVo box
G
Green
The green video channel
H
Horizontal
Horizontal video synchronizing signal
IR
Infrared
IR, like the Infrared remote control. Simply point the front of an IR
remote control unit towards the IR sensor on the product to be
controlled.
L
Left
The Left channel of an analog stereo pair, Left and Right
LED
LEDs (light-emitting diodes) are like small light bulbs that light up
to indicate a selection, and are used as status indicators.
ms
Milliseconds
Unit of time, in seconds/100; for example, the factory default for
Fade-to-Black video muting is 240 ms, which is equal to 240 x
10-3 (0.24) seconds
PCM,
digital
PCM
Pulse Code Modulation
PCM is a sampling technique for digitizing analog signals,
especially audio signals. Used in this Operating Manual to refer to
digital audio.
R
Right
Audio: The Right channel of an analog stereo pair, Left and Right
Red
Video: The "red" video channel
RCA jack
An RCA jack or what was called a “phono plug” is an industry
standard audio connector used for the audio inputs and outputs
of the KD-MSW4x2. The black connector jack [ “PCM”] is used
for the digital audio formats. Analog stereo audio uses both jacks,
where white = the left channel [“L”], and red = the right channel
[“R”]. The video inputs and outputs also use RCA connectors.
RGBHV
"VGA"-like video
Video signal wiring format using red (R), green (G), and blue (B)
signals. The horizontal (H) and vertical (V) signals are used for
video synchronization. Sometimes the sync signals are embedded
in the green (G) channel, which frees-up the H&V connectors.
STB
Set Top Box
For example, a Cable STB or Satellite STB
V
Vertical
Vertical video synchronizing signal
VAC
Volts, AC
Specifies the AC line voltage, such as nominally 120 volts in the US
YPbPr
Component Video
Video signal wiring format using “luminance” (Y) and two color
signals (Pb and Pr). Typically the horizontal and vertical video
synchronizing signals are embedded in the Y channel.
A "4x2" Matrix Switching Example:
Select Video Source #3 to Display 1
Select Source #1 to Display 2
Using a Matrix Switcher as a
Distribution Amplifier Example:
Select Video Source #4 to Display 1
Select Video Source #4 to Display 2
Video Source
Display 1
Display 2
1 - Satellite STB
2 - DVR
3 - DVD Player
4 - Cable STB
Video Source
Display 1
Display 2
1 - Satellite STB
2 - DVR
3 - DVD Player
4 - Cable STB
MSW4x2_Manual.indd 8-9
8/23/06 4:07:06 PM
