KD-MSW4x2 Operating Instructions
KD-MSW4x2
4 Inputs to 2 Outputs HDTV Matrix Switcher
Operating Instructions
TheFatBoySeriesKD-MSW4x2byKeyDigital™‚isananalogHDTV4-Inputto2-Output
matrix switcher and distribution amplifier. For each of the two displays connected to
its output, any of up to four source inputs can be separately and seamlessly switched
with the professional Fade-to-Black and Video Muting features. It supports both
component video (YPbPr) and RGBHV video formats; and S-Video and composite
video (CVBS), with adapters. Concurrent with the video, it switches and distributes
PCM coax digital audio, and analog stereo audio (no analog audio for RGBHV video).
With analog video bandwidths up to 300 MHz, the KD-MSW4x2 handles all HD and
SD resolutions (50 and 60 Hz) including 1080p/60, with no degradation in signal
quality. It is simple to operate and control via front panel pushbuttons with LEDs to
monitor the selections, IR remote control, IR Extender, wired IR, and is compatible via
RS-232 with all control systems.
Key Digital™, led by digital video pioneer Mike Tsinberg,
develops and manufactures high quality, cutting-edge
technology solutions for virtually all applications where
high quality video imaging is important. Key Digital™
is at the forefront of the video industry for Home
Theater Retailers, Custom Installers, System Integrators,
Broadcasters, Manufacturers, and Consumers. We
provide total video system solutions because we
know and help drive the technology, the industry, the
business, and all the latest up-and-coming standards.
But most of all, we know exactly what you need for your
unique application - the right solution.
521 East 3rd Street, Mount Vernon, NY 10553
::
::
Phone 914.667.9700 Fax 914.668.8666
::
Rev 0 – July 2006
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KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
Front and Rear Panels
Quick Installation
Pushbutton to Select Input
Input Selected LEDs
CAUTION: Do not connect the external supply (provided) to
the back of the KD-MSW4x2 unit until ALL of your video and
audio connections are completed.
IR Remote Sensor
For proper operation of the high quality electrical circuits in the KD-MSW4x2 unit, do
NOT "daisy chain" inputs:
➔
Each input of the KD-MSW4x2 has its own 75 Ω termination
➔
Do NOT feel a source to multiple KD-MSW4x2 inputs without proper
distribution equipment
›
›
Connect up to four source devices to the Input Ports 1 - 4 on the rear panel
of the KD-MSW4x2 unit.
1
2
3
4
1
2
Power Supply
Wired IR
IR Extender
Outputs
Inputs
Connect two displays to the Output Ports 1 and 2 on the rear panel
of the KD-MSW4x2 unit.
RS-232
Typical Input/Output Port
Input/Output Ports and Formats
›
›
The output format = the format of the selected input source
Each Port supports:
Component Video Applications
Inputs and Outputs
RGBHV Video Applications
Inputs and Outputs
➔
➔
➔
YPbPr component video, analog stereo left and right audio, and digital PCM audio
RGBHV video and digital PCM audio
Component Video
RGB video with sync on the green channel, analog stereo left and right audio, and digital PCM
audio
RGBHV Video
Pr
Y
Pb
R
G
B
➔
S-Video and composite video (CVBS), with adapters
›
Each connector can accommodate various signals, on a shared basis:
➔
➔
➔
➔
➔
Red Connector: Pr/R
Video
Audio
»
»
Pr label is for component video
R label is for the red channel for RGBHV video
Green Connector: Y/G
»
»
Y label is for component video
G label is for the green channel for RGBHV video
Blue Connector: Pb/B
Left (L) Right (R) Digital
PCM
H
V
Digital
PCM
»
»
Pb label is for component video
If video sync is
on Green (G), then
Analog Stereo Audio
is also supported
here in place of H&V
B label is for the blue channel for RGBHV video
Analog
Stereo
Audio
Digital
Audio
Digital
Audio
White Connector: L/H
»
»
L label is for the left analog stereo audio channel
H label is for the horizontal sync for RGBHV video
Red Connector: R/V (Right analog stereo audio, or vertical sync for RGBHV video)
R label is for the right analog stereo audio channel
»
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KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
Additional Product Features
Several new features have been added to this generation of Key Digital™ switchers, called “Fade-to-
Black” and “Video Mute.” Both of these features let the user switch like a pro, like in a live studio.
»
V label is for the vertical sync for RGBHV video
Black Connector: PCM
For PCM digital coax audio
➔
»
Fade-to-Black
Control Connections
The Fade-to-Black feature allows for switching between input/output combinations without the
usual visual signal noise, glitches, and sync roll that traditionally accompany switching between
video signals. The feature momentarily forces the video image to black as the desired source input
is selected for the chosen output. This feature is applied automatically and the fade time
interval is programmable via RS-232.
›
›
Decide how the KD-MSW4x2 will be controlled
If using an IR (Infrared) Extender, the wired IR, or an external Control System (via the RS-232 port
on the KD-MSW4x2), make the appropriate connections
Power
›
Use ONLY the external power supply provided with the KD-MSW4x2 unit. Use of any other
Video and Audio Mute
power supply VOIDS the Key Digital™ Warranty and may
potentially damage the unit and any associated equipment.
Video and Audio Mute enables the user to mute the audio and video signal (the display goes
to black) at the chosen output, using the RS-232 [see the RS-232 Command List] or IR remote
control. Using the IR remote control for Video and Audio Muting:
›
›
Connect the external power supply provided with the
KD-MSW4x2 to the jack on the rear panel of the unit.
Activate Video & Audio Mute:
Deactivate Video & Audio Mute:
R1 ‡ output (1~2) ‡ up arrow
Connect the power supply to an appropriate source of power,
such as from a wall outlet.
R1 ‡ output (1~2) ‡ down arrow
Operation
›
›
›
›
Follow all manufacturer instructions for the safe and proper operation of the source and display
products that have been connected to the KD-MSW4x2.
Using one of the convenient control options for the KD-MSW4x2, separately select source input
1, 2, 3, or 4 for output display 1, and source input 1, 2, 3, or 4 for output display 2.
Use the IR remote control with an extensive command and control capability.
See the description for the IR remote control provided later in this Operating Manual.
It is also possible under RS-232 control to allow any one of the four inputs to be switched and
distributed to both outputs [see the RS-232 Command List].
Input 1, 2, 3, and 4 LED indicators
Use this front-panel pushbutton to
select any of the up to four source
input devices to drive the display and
audio system wired to Output 1.
Press the button and cycle through
Input 1, 2, 3, and 4.
Repeat for Output 2 using the
appropriate Output 2 pushbutton and
LEDs for monitoring the input selection.
Note: Since the KD-MSW4x2 Matrix Switcher does NOT perform video processing,
the output video format is the same as the input video format. This means that the
video resolution is not changed and also that form of video is input to the unit, for
example Component Video, the output will be in exactly the same format.
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KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
Introduction
The KD-MSW4x2 uses RCA jacks for video and audio inputs and outputs, and supports both
component video (YPbPr) and RGBHV video formats. Along with the video, it concurrently switches
and distributes digital PCM, and analog stereo audio for YPbPr operation only.
Thank you for purchasing the KD-MSW4x2 by Key Digital™, a state-of-the-art analog HDTV Fat Boy
Series 4-Input to 2-Output matrix switcher and distribution amplifier.
Each of its two distinct outputs can be used to drive two separate displays (and audio / surround
sound systems), even the most exotic high-end HDTV projectors on the market. One of up to four
source input devices (like DVD players, Set Top Boxes, etc.) can be independently and separately
selected to drive each display. Switch like a pro in the Studio, with the all-new “Fade-to-Black”
and “Video Muting” features that eliminate video “glitches” on the display when switching different
inputs. If desired, the unit functions as a distribution amplifier, simultaneously routing any single
input to both outputs. Also, the product is expandable.
The KD-MSW4x2 is simple to operate and control via front panel pushbuttons and LEDs, IR
(Infrared) remote control, IR Extender, wired IR, and is compatible via RS-232 with all control
systems.
The KD-MSW4x2 is perfectly suited for studio, home theater, custom
installation, retail, and in fact any and all analog HD and SD applications.
With analog video bandwidths up to 300 MHz, it handles all HD and
SD resolutions (50 and 60 Hz) including 1080p/60, with no degradation
in video or audio signal quality. Since the KD-MSW4x2 performs no
video or audio processing, the video and audio signals remain pure and
untouched, and hence the quality of the output signals is the same as
the quality of the input signals.
The KD-MSW4x2 boasts a 300 MHz analog video bandwidth due in part to the following custom
and proprietary Key Digital™ technologies engineered into the product to ensure the highest
standard of picture quality:
™
Key Digital Exclusive Technologies
Typical source input devices that can be matrix switched with the KD-MSW4x2 include:
›
›
›
›
›
›
DVD players
Cable TV, satellite, and terrestrial Set Top Boxes (STBs)
Digital Video Recorders (DVRs)
D-VHS, S-VHS and VHS VCR’s
Electronic game boxes
Personal Computers (PCs)
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KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
Terminology
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.
Audio/Video
Used in reference to the audio and video signals typically
associated with a source device or display
A/V
Blue
The "blue" video channel
B
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:
Digital Video Recorder
Green
For example, a TiVo box
DVR
G
The green video channel
Horizontal
Infrared
Horizontal video synchronizing signal
H
›
The ability to select any particular input source device, namely the source devices connected to
Input 1, 2, 3, or 4
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.
IR
›
These input devices can be chosen separately for Output 1 and Output 2
Left
The Left channel of an analog stereo pair, Left and Right
L
A "4x2" Matrix Switching Example:
Select Video Source #3 to Display 1
Select Source #1 to Display 2
Video Source
Display 1
Display 2
LEDs (light-emitting diodes) are like small light bulbs that light up
to indicate a selection, and are used as status indicators.
LED
1 - Satellite STB
2 - DVR
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
ms
3 - DVD Player
4 - Cable STB
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.
PCM,
digital
PCM
Distribution Amplifier Application
If desired, the unit also acts as a distribution amplifier, simultaneously routing any single input to
both outputs.
Right
Red
Audio: The Right channel of an analog stereo pair, Left and Right
Video: The "red" video channel
R
Using a Matrix Switcher as a
Distribution Amplifier Example:
Video Source
Display 1
Display 2
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.
RCA jack
1 - Satellite STB
Select Video Source #4 to Display 1
Select Video Source #4 to Display 2
2 - DVR
3 - DVD Player
4 - Cable STB
"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.
RGBHV
Set Top Box
Vertical
For example, a Cable STB or Satellite STB
STB
V
Vertical video synchronizing signal
Volts, AC
Specifies the AC line voltage, such as nominally 120 volts in the US
VAC
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.
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KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
Convenient front-panel LED indicatiors display the selecte input,
for each of the two outputs
What’s Included
The KD-MSW4x2 allows the matrix-switched input/output combinations to be configured via the
front panel pushbuttons, with the user’s input selection displayed by front-panel LED indicators for
each of the two outputs. Switching can be accomplished conveniently in any of three ways:
The following contents are provided in the carton:
1. One KD-MSW4x2 unit
›
Manually, using the front panel pushbuttons that cycle through the four inputs
Remotely, using the supplied IR remote control
2. Separate external 6-Volt power supply
3. IR remote control with batteries included
4. Operating Manual (Instructions)
5. Warranty card
›
➔
A rear-panel IR Extender is also provided
A rear-panel wired IR is also provided
➔
›
Using the RS-232 control, the unit is compatible with all Control Systems
CAUTION: When installing the KD-MSW4x2 unit, make all
Regardless of how the unit is controlled, the user’s input selection is confirmed on the front-panel
LED indicators for each of the two outputs.
video and audio hookups and connections before plugging in
the external power supply (provided). Do NOT apply power to
the unit until all video and audio connections have been made
to the KD-MSW4x2 unit from the “source” devices and to the
output displays and/or audio systems.
Pushbutton to Select Input
Input Selected LEDs
Use only the external power supply provided with the
KD-MSW4x2 unit or you VOID the Key Digital™ Warranty and
may potentially damage to the unit and associated equipment.
The KD-MSW4x2 Operating Manual
The successful system integration and operation of the KD-MSW4x2 4-to-2 HDTV Matrix Switcher
is very important to us at Key Digital™. Please follow all of the instructions provided here to ensure
proper operation of the product. Contact Key Digital™ immediately if any difficulties are incurred (see
the end of this Operating Manual for contact information).
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KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
Formats
Quick Facts about the KD-MSW4x2
The KD-MSW4x2 by Key Digital‚ is an analog HDTV Fat Boy Series 4-Input to 2-Output matrix
switcher and distribution amplifier. It is perfectly suited for studio, home theater, custom installation,
retail, and in fact any and all analog HD and SD applications.
›
Video:
➔
➔
➔
Supports component video (YPbPr) and RGBHV video formats
Supports S-Video and composite video (CVBS), with adapters
Output stage drives high-quality, equal-length video cables up to 300’ or more
›
Audio:
Along with the video, the KD-MSW4x2 switches and distributes digital PCM, and analog
stereo audio:
Typical Configuration: Analog HDTV
➔
›
›
›
›
Connect four sources to the input of the KD-MSW4x2 (for example: a DVD player, Cable Set Top
Box, Satellite Set Top Box, and PC)
›
›
Digital PCM is available with either YPbPr or RGBHV video
Connect two displays to the output of the KD-MSW4x2 (for example, a Plasma and an LCD
display)
Analog stereo audio is available with YPbPr video but not RGBHV video, unless the sync is on
green (G) channel
Connect the audio outputs of the KD-MSW4x2 to surround sound or other audio systems, or to
the speakers in the displays
›
Uses RCA jacks for video and audio inputs and outputs
It is expandable
Resolution
›
›
›
Handles all HD and SD resolutions (50 and 60 Hz) including 1080p/60
Supports analog video bandwidths up to 300 MHz
Matrix Switcher and Distribution Amplifier
›
For each of the two KD-MSW4x2 outputs that can be used to drive separate displays, one of the
four source inputs can be independently selected
The KD-MSW4x2 performs no video or audio processing:
➔
The video and audio signals remain pure and untouched
Introduces no degradation in video or audio signal quality
›
For example, it’s as easy as 1, 2, 3:
➔
1. Connect the video and audio from a DVD player, Cable Set Top Box, Satellite Set Top Box, and
PC to the inputs of the KD-MSW4x2
2. Connect the video (and audio) outputs of the KD-MSW4x2 to two displays, a Plasma and an
LCD (the audio may be separately connected to surround sound or other audio systems, or to
the speakers in the displays)
Control
Simple to operate, control, and monitor via:
›
3. Use any of the control options on the KD-MSW4x2 to select the Cable Box to drive the Plasma
➔
➔
➔
➔
➔
Front panel pushbuttons and LEDs
IR remote control, with extensive commands and control
IR Extender
and the DVD player to drive the LCD, or any other combination
›
It is also possible under RS-232 control to allow any one of the four inputs to be switched and
distributed to both outputs.
Wired IR
All control systems (with RS-232)
Professional Switching Features
›
Fade-to-Black: allows for switching between input/output combinations without the usual visual
signal noise, glitches, and sync roll that traditionally accompany switching between video signals
➔
The feature momentarily forces the video image to black as the desired source input is
selected for the chosen output
➔
➔
This feature is applied automatically
Fade time interval is programmable via the RS-232 [see the RS-232 Command List], and is
equivalent to a “Video Mute” to force the video to black during switching
›
Video Mute: enables the user to mute the video signal (the display goes to black) at the chosen
output
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KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
›
Each connector can accommodate various signals, on a shared basis:
Examine the Front and Rear Panels
➔
➔
➔
➔
➔
➔
Red Connector: Pr/R
»
»
Pr label is for component video
R label is for the red channel for RGBHV video
Become familiar with the front and rear panels of the KD-MSW4x2 unit.
Pushbutton to Select Input
Green Connector: Y/G
Input Selected LEDs
IR Remote Sensor
»
»
Y label is for component video
G label is for the green channel for RGBHV video
Blue Connector: Pb/B
»
»
Pb label is for component video
B label is for the blue channel for RGBHV video
White Connector: L/H
»
»
L label is for the left analog stereo audio channel
H label is for the horizontal sync for RGBHV video
Red Connector: R/V (Right analog stereo audio, or vertical sync for RGBHV video)
»
»
R label is for the right analog stereo audio channel
V label is for the vertical sync for RGBHV video
1
2
3
4
1
2
Power Supply
Wired IR
IR Extender
Black Connector: PCM
For PCM digital coax audio
The following connectors are also provided on the rear panel:
Outputs
Inputs
»
RS-232
›
➔
➔
➔
➔
RS-232 Connector
Front Panel
IR Extender sensor
The front panel contains the pushbutton selection switches and associated input select LED
indicators for Output 1 and Output 2:
Wired IR serial port
External power supply connector
›
For each output, select source Input 1, 2, 3, or 4
The IR remote control sensor is also located on the front panel:
›
A clear line-of-site to the sensor is required when operating the IR remote control provided with
the unit
Rear Panel
The rear panel contains 4 Input Ports and 2 Output Ports:
›
Each Port is comprised of 6 color-coded RCA connectors
Each Port can support:
›
➔
YPbPr component video, analog stereo left and right audio, and
digital PCM audio
➔
➔
RGBHV video and digital PCM audio
RGB video with sync on the green channel, analog stereo left and right audio,
and digital PCM audio
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KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
The 4 Input Ports and the 2 Output Ports are Configured Identically
Connecting the Video and Audio Inputs and Outputs
The Port configurations are the same for the 4 Input Ports and the 2 Output Ports. Each Port is
comprised of six (6) color-coded RCA connectors:
Decide on a safe location to place or mount the KD-MSW4x2. Provide enough space for sufficient
airflow and ventilation, especially if the unit is left “On” most of the time.
Do not connect the external supply (provided) to the back
of the KD-MSW4x2 unit until ALL of your video and audio
connections are completed.
Test for proper operation of the unit, interconnections, and cables before final
installation of cables behind walls or ceilings. The output stage of the KD-MSW4x2
is capable of driving high-quality, equal-length video cables up to 300’ or more.
›
›
Connect up to four video and audio sources to the RCA jack Input Ports of the KD-MSW4x2.
➔
Digital PCM audio is available with either YPbPr or RGBHV video
➔
Analog stereo audio is available with YPbPr video but not RGBHV video, unless the sync is on
green (G)
Connecting A/V Equipment
Connecting A/V equipment to the KD-MSW4x2 HDTV Matrix Switcher is straightforward and easily
accomplished via the ergonomic rear panel connector array. Because not all consumer equipment
marketed today uses RCA connector interfaces, it may be necessary to employ adapter plugs
and/or cable assemblies to interface these various devices to the unit.
Connect up to two displays to the RCA jack Output Ports of the KD-MSW4x2. The audio
outputs from the product can be connected to the audio inputs of the display, or separate
surround sound or other audio systems.
Component Video Applications
Inputs and Outputs
RGBHV Video Applications
Inputs and Outputs
The video signal format must be considered when making connections to the KD-MSW4x2 unit.
Simply match the A/V device’s output (namely YPbPr “Component” or RGBHV “VGA” video) to a
similar video signal output configuration on the KD-MSW4x2. S-Video and/or composite video
may also be interfaced with the unit, using appropriate adapters available separately.
Component Video
RGBHV Video
Pr
Y
Pb
R
G
B
The same consideration applies to the audio interfaces. Both analog and digital audio output
options are provided on the KD-MSW4x2. Use the appropriate format, such as analog audio when
connecting directly to the audio inputs of a video monitor; or digital audio, when connecting instead
to an A/V receiver having coaxial digital (PCM) interfaces for decoding surround sound signals.
Video
Audio
CAUTION: The output stage of the KD-MSW4x2 can drive high-quality
length video cables up to 300' or more. Be sure to use high-quality
cables like those available through Key Digital™. Always ensure cables
for each output are equal in length for each video component.
Left (L) Right (R) Digital
PCM
H
V
Digital
PCM
CAUTION: For proper operation of the high quality electrical circuits in
the KD-MSW4x2 unit, do NOT "daisy chain" inputs:
If video sync is
on Green (G), then
Analog Stereo Audio
is also supported
here in place of H&V
Analog
Stereo
Audio
Digital
Audio
Digital
Audio
➔
Each input of the KD-MSW4x2 has its own 75 Ω termination
➔
Do NOT feel a source to multiple KD-MSW4x2 inputs without
proper distribution equipment
Note: The left and right analog stereo audio interfaces also double as the horizontal and vertical sync signals
(respectively) for the RGB video interface.
CAUTION: Connecting digital PCM audio signals directly to the analog
audio input of a TV monitor, display, or other device can result in
severe damage to its speakers.
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KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
Typical Application Example for the KD-MSW4x2 HDTV Matrix Switcher
Detailed Input/Output Descriptions
The interconnection of video and audio equipment in the various formats supported by the KD-
MSW4x2 unit is described here in detail. This section is particularly useful if some source devices
or displays are only available with S-Video or Component Video formats
Z
o
ne
2
Plasma/LCD
For proper operation of the high quality electrical circuits in the KD-MSW4x2 unit,
do NOT “daisy chain” inputs:
➔
Each input of the KD-MSW4x2 has its own 75 Ω termination
➔
Do NOT feed a source to multiple KD-MSW4x2 inputs without proper
distribution equipment
High-quality Component Video (YPbPr) and “VGA” (RGBHV) Source Equipment
1
ne
o
Z
Some source equipment may have an analog video output that is called Component Video, a
3-wire video format with the video signals labeled YPbPr. Another common analog video output
format is RGB (like the “VGA” outputs on a computer), which typically has separate H&V sync
signals. The KD-MSW4x2 HDTV Matrix Switcher is the perfect choice for switching Component
Video and RGBHV Video source devices to displays with analog inputs.
C
o
A
m
u
d
p
i
o
o
n
e
n
t
Plasma/LCD
Example: Connecting a digital TV set-top receiver with Component Video three-wire YPbPr or
“VGA” five-wire RGBHV video Outputs to the KD-MSW4x2 HDTV Matrix Switcher Inputs
Wired IR
Optical IR
RS232 Control
YPbPr Component Video
Connect the three-wire green, blue and red YPbPr cables from the set-top receiver of choice, to the
green, blue, and red color-coded connectors of any one of the four Input Ports on the rear of the
KD-MSW4x2 unit. Connect the white and red analog stereo audio cables from the set-top receiver
to the white and red connectors of the same Input Port of the KD-MSW4x2 unit. If a digital audio
coaxial output is available on the set-top receiver, it can then connect to the black-coded PCM
connector on the KD-MSW4x2 unit.
KD-MSW4x2
Optical IR
A
u
d
C
i
o
o
m
p
A
o
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n
e
d
i
n
t
o
A
u
d
i
o
A
u
Connect the green, blue, and red connectors from Output Ports 1 or 2 on the KD-MSW4x2 unit
to the corresponding component video jacks on the desired display. Connect the white and red
analog audio jacks from the same Output Port to the corresponding white and red audio jacks on
the audio system (which may be built into the display). If digital PCM audio is desired from the set-
top receiver, connect a cable from the black connector in the same chosen Output Port to the A/V
receiver's coaxial digital audio input.
d
i
o
A
u
Cable Box
DVD Player
TiVo
d
i
o
C
o
m
p
o
n
e
n
t
C
C
o
o
m
m
p
p
o
o
n
n
e
e
n
n
t
Satellite Box
t
C
o
*All Component sources can be
substituted with RGBHV sources
m
p
o
n
e
n
t
CAUTION: To prevent damage to equipment, do NOT connect the KD-MSW4x2
digital PCM audio outputs to any analog audio inputs on a display or audio system!
®
Key Digital Exclusive Technologies
Supported Technologies
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Page 20
Page 2ꢀ
KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
RGBHV
Control Connections
If the set-top receiver of choice employs RGBHV outputs, a 15-pin “breakout” adapter cable may
needed to implement the interface. In this instance connect the red, green and blue connectors
from this adapter cable to the red, green and blue connectors, again on any one of the four Input
Ports of the KD-MSW4x2 unit. Connect the black and yellow wires from the breakout cable to the
white (H) and red (V) connectors of the same Input Port of the KD-MSW4x2 unit.
Decide how the KD-MSW4x2 will be controlled. If using an IR (Infrared) Extender, the wired IR,
or an external Control System (via the RS-232 port on the KD-MSW4x2), make the appropriate
connections now.
Connect the RGBHV video signals from Output Ports 1 or 2 on the KD-MSW4x2 unit to the
corresponding RGBHV video jacks on the desired display. A second 15-pin breakout cable may be
required for certain sets.
It is not possible to use analog audio switching when in RGB video applications because the H&V
sync signals required for the RGB format occupy the port connectors typically used for the audio
signals. Digital PCM may be used for this application, as described above.
This same connection procedure described above applies to any other peripheral device
that one may wish to interface with a desired display medium, including DVD players and
game consoles.
Lower-quality S-Video (two-wire) or Composite Video (CVBS) Source Equipment
S-Video
For S-Video applications, a “breakout” adapter cable is required to connect a source device to the
KD-MSW4x2 unit. This cable is equipped with an S-Video (DIN) plug at one end and a pair of RCA
plugs at the other connected to white and yellow conductors. Connect the white (Y) conductor to
the green RCA connector of the selected Input Port, and connect the yellow (C) conductor to either
the blue or red RCA connector in the same input field. Connect the white and red analog stereo
audio connectors of the source device to the white and red connectors in the same Input Port of
the KD-MSW4x2 unit.
RS-232
The KD-MSW4x2 HDTV Matrix Switcher is compatible with all Control Systems. Use the D-sub
9-pin connecter on the rear panel and an appropriate cable to attach the unit to an external Control
System. An RS-232 cable is not supplied* with the base KD-MSW4x2 unit. Carefully insert your
own RS-232 cable (9-pin) to the back of the unit, and to an appropriate PC or Control System.
Connect the green RCA connector from Output Ports 1 or 2 on the KD-MSW4x2 unit to the white
(Y) conductor of a second S-video adapter cable. Connect the blue or red connector to the yellow
(C) conductor. Plug the other end of the adapter cable into the TV or monitor's S-video input.
Connect the white and red analog stereo audio cable connectors to the white and red connectors
of the same Output Port on the KD-MSW4x2 unit. Connect the other end of the audio cable pair to
the white and red analog audio input of the display.
Composite Video (CVBS) Connection
Connect the Composite Video connector (yellow) from a VCR or other source device to the green
RCA connector in the selected Input Port on the KD-MSW4x2 unit. Connect another composite
video cable from the green RCA connector from Output Ports 1 or 2 on the KD-MSW4x2 unit to the
TV or video monitor. Follow the instructions above for connecting analog audio.
If applicable, Key Digital™‚ Fat Boy KD-MSW4x2 expansion units come preconfigured from the factory with their own
RS-232 cable
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Page 22
Page 2ꢁ
KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
Applying Power
IR Extender
CAUTION: No other power supply adapter can be used
with the KD-MSW4x2 unit. Use only the Power Supply
provided in the carton! Using a power supply other than
the one provided by Key Digital“ with the unit VOIDS THE
WARRANTY, may cause damage to the unit and associated
equipment, and is a potential safety hazard.
A rear-panel IR sensor is provided, ideal to use with an IR Extender,
like one provided by Xantech. The rear panel IR sensor also supports
the IR remote control provided with the KD-MSW4x2 unit.
Mount the IR extender on the rear panel of the KD-MSW4x2 unit, or connect the wired serial connector cable to the
wired IR connector jack on the rear panel.
Now that the A/V input and output interfaces are completed, it is recommended to double check all
cables and connections before applying power.
Always test all connections and final operation first, before sealing cables behind
walls or completing difficult wire routings.
Wired IR
A rear-panel wired IR serial connector is provided for use with an IR Extender, like one provided by
Xantech. Connect the wired IR Extender to the 3.5 mm jack on the rear panel of the KD-MSW4x2
unit.
To test connections before routing or hiding any wires behind walls or ceilings, use a reliable source
(like a DVD player) and display that is known to be functioning properly.
Carefully insert the Power Supply adapter plug here
Once all the connections have been verified, plug the connector of the Power Supply into the
power supply input jack on the rear panel of the KD-MSW4x2 unit.
Next, plug the external Power Supply provided with the unit into an appropriate wall outlet or source
of AC power. The external power supply is rated: + 6V DC @ 5 Amps,110-240 VAC, 50-60 Hz. For
added safety and protection it is recommended to use a good quality surge protector.
The KD-MSW4x2 unit has no physical On/Off switch, except on
the provided IR remote control.
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Page 24
Page 2ꢂ
KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
Fat Boy Expansion Control
Operation
Fat Boy expansions have multiple KD-MSW4x2 units pre-wired from the factory. Each unit in the
expansion is individually addressable.
Matrix Switching
Configuring a particular unit with the desired input and output combination requires the following
successive steps:
With all of the video and audio sources connected to the four Input Ports, and the displays and
audio systems connected to the two Output Ports of the KD-MSW4x2 unit, the matrix switcher is
ready to operate. The routing of video and audio signals from the available inputs to either output is
easily implemented using the front panel pushbuttons, and visually verifiable via the LED indicator
arrays.
1. Addressing desired Unit:
Depress button 1 through 8 to select the desired unit
2. Addressing desired Output:
Depress button ‘output 1’ (to select Output 1), or ‘output 2’ (to select Output 2)
The front panel of the unit provides the user with a visual representation of the two outputs.
Each of the two output sections consists of a large pushbutton switch and an array of four LED
indicators. Each of these appropriately numbered LED indicators corresponds to one of the four
available inputs.
3. Addressing desired Input:
Depress numerical digits 1 to 4
For either display that is connected to the output of the KD-MSW4x2 unit, the desired source input
is switched by depressing the appropriate pushbutton until the LED indicator corresponding to the
chosen input is lit. The video and audio sources connected to that input are automatically switched
to the selected output. The unit also acts as a distribution amplifier, simultaneously routing a single
input to both outputs, by simply repeating the same procedure for both outputs.
Additional Product Features
›
Fade-to-Black
The Fade-to-Black feature allows for switching between input/output combinations without the
usual visual signal noise, glitches, and sync roll that traditionally accompany switching between
video signals. The feature momentarily forces the video image to black as the desired source
input is selected for the chosen output. This feature is applied automatically and the fade time
interval is programmable via RS-232 [see the RS-232 Command List].
Input 1, 2, 3, and 4 LED indicators
Use this front-panel pushbutton to
select any of the up to four source
input devices to drive the display and
audio system wired to Output 1.
Press the button and cycle through
Input 1, 2, 3, and 4.
›
Video Mute
Video Mute enables the user to mute the video signal (the display goes to black) at the chosen
output. Activated via IR remote control or RS-232 [see the IR remote control section of this
manual, and the RS-232 Command List for explicit instructions].
›
›
Distribution Amplifier
Repeat for Output 2 using the
appropriate Output 2 pushbutton and
LEDs for monitoring the input selection.
It is also possible under RS-232 control to allow any one of the four inputs to be switched and
distributed to both outputs.
Power On/Off
Summary: Control and Monitoring
Turn the KD-MSW4x2 On and Off. In the power-off mode, all front LEDs are Off and the video
outputs are muted.
›
Select one of four input sources for each of the two outputs
Front-panel LEDs indicate the selected input, for each output
Control via:
➔
›
➔
Front panel pushbuttons
IR remote control
➔
»
»
»
Control all the features of the unit using the remote control
Power the KD-MSW4x2 On and Off
Requires a clear line-of-site between the IR remote control unit
and the front-panel IR sensor
➔
➔
➔
IR Extender
Wired IR
All control systems (with RS-232)
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Page 26
Page 27
KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
Power “On” the Unit
IR Remote Control
To operate the KD-MSW4x2, be sure the unit is “On” (using the power supply provided with the
unit). The IR remote control has separate “On” and “Off” pushbuttons. In the power-off mode, all
front LEDs are Off and the video outputs are muted.
All the functions of the KD-MSW4x2
can be remotely accessed using the
IR remote control supplied with the
unit. The status-monitoring LEDs on
the KD-MSW4x2 front panel will light
to indicate the selections invoked by
the IR remote control, just like when
using the front-panel pushbutton
switches.
ON
OFF
Matrix Switching with the IR Remote
Numeric
Keypad
The handheld IR remote control provides the same control functions as with the on-board
pushbutton switches. Follow the instructions below and simply select Input 1, 2, 3, or 4 for
Output 1 and Output 2.
Video & Audio Mute
& Restore Keys
NOTE: Be sure to select the video format
›
›
Press ‘R1’ then ‘7’ for RGBHV video
Press ‘R1’ then ‘8’ for YPbPr video
Not Used
A/V Mute &
Unmute
The KD-MSW4x2 4-to-2 HDTV
Matrix Switcher can be operated
remotely using the supplied
infrared (IR) remote control.
Press two digits on the IR remote control to perform the desired input and output switching function:
Command Keys
Not Used
›
›
First, enter the desired video/audio output (1 or 2). Simply press the button ‘Output 1’ or ‘Output 2’.
Output Select
Then, use the Numeric Keypad to enter the desired source input (1-4).
For example, to connect a DVD player connected on input 3 to be viewed on the display connected
to output 2, depress the keys ‘Output 2’ then ‘3’ on the IR remote control, in that order.
Remote Control Pushbuttons
Note that a blue LED channel input indicator on the front panel of the KD-MSW4x2 will blink for the
selected output. Once the desired A/V input has been selected, this indicator blinks for three (3)
seconds to confirm the selection.
›
Carefully install the batteries in the handheld remote control unit. Periodically replace batteries in
the handheld unit, as the operational distance of the remote control is affected by a weakened
1. FIRST SELECT
power source.
IR Remote Sensor
2.
OUTPUT1 OR 2
Then press 1, 2, 3, or 4 to
direct the respective source
input device to that output
2. THEN DIRECT INPUT
1, 2, 3, OR 4 TO THAT
SELECTED OUTPUT
›
The IR remote control unit is based on Infrared technology, requiring a clear line-of-site from the
handheld control to the IR sensor located on the front panel of the KD-MSW4x2 unit.
1.
First press either the
“Output 1” button to
select output 1, or the
“Output 2” button to
select output 2
IR Extender
›
The IR Extender sensor located on the rear panel can also be used to receive the IR remote
control signal, if an IR Extender is not connected or in use.
›
›
Always point the front of the remote control directly at the IR sensor located on the KD-MSW4x2.
The IR remote control may not operate properly if there are objects placed between it and the IR
sensors located on the KD-MSW4x2 front panel.
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Page 28
Page 29
KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
Video and Audio Mute
RS-232 Commands and Protocol
Video Mute enables the user to mute the video signal (the display goes to black) at the chosen
output. Activated via IR remote control [or RS-232, see the RS-232 Command List].
The KD-MSW4x2 4-to-2 HDTV Matrix Switcher can also be remotely controlled via its RS-232 port
by systems such as Crestron, AMX, ELAN, and Control4, utilizing industry standard commands
PROTOCOL:
Activate Video & Audio Mute:
R1 ‡ output (1~2) ‡ up arrow
Deactivate Video & Audio Mute:
R1 ‡ output (1~2) ‡ down arrow
KD-MSW4x2 IR Remote Control Function Table
›
›
›
›
4800 Baud rate
8 data bits
1 Stop bit
In addition to some of the functions described above, a complete list of all of the functions and
corresponding button sequences that can be executed from the IR remote control provided with
the KD-MSW4x2 are listed below:
No parity
Button Sequence
Function
“Output 1”
“Output 1”
“Output 1”
“Output 1”
“Output 2”
“Output 2”
“Output 2”
“Output 2”
“Output 1”
“Output 1”
“Output 2”
“Output 2”
“R1”
“1”
Output 1 = Input 1
RS-232 Cable
“2”
Output 1 = Input 2
Carefully insert an RS-232 cable (9-pin) to the back of the unit, and to an appropriate PC
or Control System.
“3”
Output 1 = Input 3
“4”
Output 1 = Input 4
“1”
Output 2 = Input 1
“2”
Output 2 = Input 2
“3”
Output 2 = Input 3
An RS-232 cable is not supplied with the KD-MSW4x2 unit.
“4”
Output 2 = Input 4
“U1”
“U2”
“U1”
“U2”
“Output 1”
“Output 1”
“Output 2”
“Output 2”
“U4”
“U4”
“7”
Output 1Audio Mute
The RS-232 Command List for the KD-MSW4x2 HDTV Switcher is as follows:
Output 1Audio Restore (unmute)
Output 2 Audio Mute
1. I/O switching command:
CCxy
Output 2 Audio Restore (unmute)
Output 1Video and Audio Mute
Output 1Video and Audio Restore (unmute)
Output 2 Video and Audio Mute
Output 2 Video and Audio Restore (unmute)
All Outputs Video and Audio Mute
All Outputs Video and Audio Restore (unmute)
All video outputs set to RGBHV
All video outputs set to YPrPb
Front buttons disabled
x = output position (1...2), y = input position (1...4)
“Up”
2. Status command:
“R1”
“Down”
“Up”
CCww
Note: Since both commands are of a defined length, no terminator is required
“R1”
“R1”
“Down”
“Up”
Both commands give the following response:
a) UUy1y2y
“R1”
b) Y1y2y3y4 – input states (1...4)
“R1”
“Down”
3. Address command:
“R1”
CCA<number (1~9)>
CCA9 :
CCA1~8 :
“R1”
“8”
Selects default KD-MSW4x2 unit (non addressable)
Selects the KD-MSW4x2 unit corresponding to that predetermined
numerical address
“R1”
“9”
“R1”
“0”
Front buttons enabled
Example:
CCA5 sets the address to “5”
The user must then press “5” to select/change a different source input on that unit
IR 5‡‘output 1’ ‡3 links output 1 to input 3
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KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
4. Video Mute command:
TECHNICAL SPECIFICATIONS
IR : R1‡ output 1-2 ‡ Up arrow : Enable Mute
R1 ‡ output 1-2 ‡ Down arrow : Disable Mute
Example:
Model #: KD-MSW4x2
R1‡ output 1 ‡ Up arrow : output 1 is muted
4 Inputs to 2 Outputs HDTV Matrix Switcher
Note:
R1‡ U4 ‡ Up arrow mutes every output
RS-232: CCm<number(1~3)> : Enable mute
CCn<number(1~3)> : Disable mute
The Fat Boy Series KD-MSW4x2 by Key Digital™‚ is an analog HDTV 4-Input to 2-Output matrix
switcher and distribution amplifier.
5. Fade to Black interval set up command:
Period that will be muted is twice the interval
CCi<number(0~9)>
Matrix Switching
›
›
›
Supports Video and Audio
CCI0 :
CCI1 :
CCI2 :
CCI3 :
CCI4 :
CCI5 :
CCI6 :
CCI7 :
CCI8 :
CCI9 :
No mute
Four (4) Input Ports and two (2) Output Ports provided
Matrix switch one of up to four inputs to either of two outputs
28 ms mute
40 ms mute
80 ms mute
120 ms mute
160 ms mute
240 ms mute
320 ms mute
400 ms mute
600 ms mute
➔
For each of the two outputs that can be used to drive separate displays, one of the four
source inputs can be independently selected
›
›
Also acts as a distribution amplifier, simultaneously routing any individual input to both outputs
Using RS-232 control
Expandable
➔
Professional Switching Features
6. Power On/Off
›
Fade-to-Black: allows for switching between input/output combinations without the usual
visual signal noise, glitches, and sync roll that traditionally accompany switching between video
signals
s : Power OFF the KD-MSW4x2 unit
q : Power ON the KD-MSW4x2 unit
7. Output set up command:
➔
The feature momentarily forces the video image to black as the desired source input is
selected for the chosen output
IR: R1 ‡ 7 : RGBHV mode
R1 ‡ 8 : Component mode
RS-232 : CCOR : RGBHV mode
CCOC : Component mode (factory default)
➔
➔
This feature is applied automatically
Fade time interval is programmable via the RS-232, and is equivalent to a “Video Mute” to
force the video to black during switching
8. Factory default command:
CCF0 : Resets memory
Inputs for every output = 1
»
See the RS-232 Command List
›
Video Mute: enables the user to mute the video signal (the display goes to black) at the chosen
Mute Interval = 240 ms
output
9. IR Remote Control commands:
I :Disable IR Remote Control
Input/Output Ports and Formats
u :Enable IR Remote Control
›
›
The output format = the format of the selected input source
10. Front Panel Pushbutton commands:
d : Disable front panel pushbutton controls
e : Enable front panel pushbutton controls
Each Input and Output Port is comprised of six (6) color-coded RCA jacks:
➔
3 analog video connectors
2 analog audio connectors
➔
11. Switching any input to both outputs commands (Distribution Amplifier mode):
z<number(1~4)> : Switches both outputs to any one input temporarily; can be restored
to original selection
»
The analog audio input/output connectors also serve as the horizontal and vertical sync
for RGBHV signals
›
1 PCM digital coax audio connector
z0 : Restores the original input-output configuration
Example:
z3 : Switches both outputs to input 3
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Page ꢁ2
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KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
›
Each Port supports:
Video Characteristics
➔
➔
➔
YPbPr component video, analog stereo left and right audio, and digital PCM audio
RGBHV video and digital PCM audio
›
›
›
›
Output stage drives high-quality, equal-length video cables up to 300’ or more
1V p-p @ 75 ohms, terminated
Composite video sync on “Y” input (YPbPr)
Video bandwidth:
RGB video with sync on the green channel, analog stereo left and right audio, and digital PCM
audio
➔
S-Video and composite video (CVBS), with adapters
➔
-3 dB @ 300 MHz
›
Each connector can accommodate various signals, on a shared basis:
➔
Linear phase pass-band
➔
➔
➔
➔
➔
➔
Red Connector: Pr/R
›
›
Unity video gain
»
»
Pr label is for component video
Input terminations: for proper operation of the high quality electrical circuits in the KD-MSW4x2
unit, do NOT “daisy chain” inputs:
R label is for the red channel for RGBHV video
Green Connector: Y/G
➔
Each input of the KD-MSW4x2 has its own 75 ohm termination
»
»
Y label is for component video
➔
Do NOT feed a source to multiple KD-MSW4x2 inputs without proper distribution equipment
G label is for the green channel for RGBHV video
Analog Audio Characteristics
Blue Connector: Pb/B
›
›
›
›
Left and Right stereo on two color-coded RCA connectors
High-impedance (1K ohm) line level inputs
»
»
Pb label is for component video
B label is for the blue channel for RGBHV video
Analog Audio Muting provided
White Connector: L/H
Analog Audio is not supported for RGBHV video applications:
»
»
L label is for the left analog stereo audio channel
H label is for the horizontal sync for RGBHV video
➔
Connectors are used for H&V
Red Connector: R/V (Right analog stereo audio, or vertical sync for RGBHV video)
Digital Audio Characteristics
Standard digital PCM coax format on one color-coded RCA connector
Control and Monitoring
»
»
R label is for the right analog stereo audio channel
V label is for the vertical sync for RGBHV video
›
Black Connector: PCM
For PCM digital coax audio
»
›
Select one of four input sources for each of the two outputs
Front-panel LEDs indicate the selected input, for each output
Control via:
➔
Resolution
›
›
›
›
›
The output resolution = the resolution of the selected input source
Handles all HD and SD resolutions (50 and 60 Hz) including 1080p/60
Supports analog video bandwidths up to 300 MHz
➔
➔
➔
➔
➔
Front panel pushbuttons
IR remote control, with extensive commands and control
IR Extender
Performs no video or audio processing:
Wired IR
➔
Introduces no degradation in video or audio signal quality
All control systems (with RS-232, cable not supplied)
Compatible Video Signals
Connectors
›
Compatible with all standard analog video signal formats that use 50 Hz or 60 Hz refresh rates,
including:
➔
➔
➔
➔
Each Input and Output Port is comprised of six (6) color-coded RCA jacks
RS-232C: D-sub 9-pin
➔
1080p,1080i, 720p, 576p, 576i, 540p, 480p, 480i
5-pin power connector for external AC-DC power supply input
3.5 mm jack for serial, wired IR input
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Page ꢁ4
Page ꢁꢂ
KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
How to Contact Key Digital™
Mechanical
›
›
›
›
Size: 16” (L) x 4” (W) x 1.7” (H)
Weight: 5 lbs.
Repairs and Warranty Service
Enclosure Type: Metal
Rack Mount Size: 1 U
›
Should your KD-MSW4x2 4-to-2 HDTV Matrix Switcher require warranty service, please contact
Key Digital™ to obtain a Returned Materials Authorization (RMA) number
Power Requirements
›
Please contact us at either:
➔
Phone:
E-mail:
1-914-667-9700 ext 215
›
›
External power supply provided
➔
+ 6V DC @ 5 Amps,110-240 VAC, 50-60 Hz
CAUTION: No other power supply adapter can be used
Technical Support
For technical questions about using our products, please contact us at either:
with the KD-MSW4x2 unit. Use only the Power Supply
provided in the carton! Using a power supply other than
the one provided by Key Digital™ with the unit VOIDS THE
WARRANTY, may cause damage to the unit and associated
equipment, and is a potential safety hazard.
›
➔
Phone:
E-mail:
1-914-667-9700 ext 301
➔
Customer Support
For customer support questions about using our products, please contact us at either:
›
➔
Phone:
E-mail:
1-914-667-9700 ext 223
➔
Warranty
All Key Digital™ products are built to high manufacturing standards and should provide years of
trouble-free operation. They are backed by a limited two-year parts and labor warranty.
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Page ꢁꢃ
Page ꢁꢄ
KD-MSW4x2 Operating Instructions
KD-MSW4x2 Operating Instructions
Installation Notes
Installation Notes
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