AMX DUX-8C User manual

USER MANUAL
DUX-8C
8×8 HDMI Matrix
• 4K@60Hz 4:4:4 18Gbps
• De-Embedded Audio

2USER MANUAL - DUX-8C
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS ...................................................................03
1. INTRODUCTION.................................................................................................04
2. PACKING LIST ...................................................................................................05
3. SPECIFICATIONS...............................................................................................06
4. PANEL OVERVIEW.............................................................................................07
4.1 Front Panel.................................................................................................07
4.2 Rear Panel..................................................................................................07
5. INSTALLATION AND WIRING ............................................................................08
5.1 Installation..................................................................................................08
5.2 Ventilation ..................................................................................................08
5.3 Wiring ........................................................................................................09
6. CONTROL OF THE MATRIX ...............................................................................11
6.1 Front Panel Control ....................................................................................11
6.2 IR Remote Control......................................................................................12
6.3 LAN Control (via Web UI)...........................................................................13
6.3.1 Matrix Control...................................................................................14
1) Switch..........................................................................................14
2) Preset...........................................................................................15
6.3.2 Admin Setting...................................................................................16
1) CEC Setting ..................................................................................18
2) EDID Setting.................................................................................18
3) HDCP Support..............................................................................19
4) Port Naming.................................................................................20
5) Preset Name.................................................................................20
6) Network........................................................................................21
7) Change Password ........................................................................21
8) Update Web UI.............................................................................22
9) Log...............................................................................................23
10) Custom Web UI Logo.................................................................23
11) Reset All Settings to Default.......................................................24
12) Firmware....................................................................................24
6.4 RS232 Control............................................................................................25
7. EDID Management............................................................................................26
Copy EDID Settings Using Front Panel Controls ..............................................26
APPENDIX 1: API COMMAND................................................................................27

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USER MANUAL - DUX-8C
IMPORTANT SAFETY INSTRUCTIONS
NOTE: We reserve the right to change the content from time to time without
notice.
WARNINGS: To reduce the risk of fire, electric shock or product damage, please
observe the following Safety Instructions while installing and operating the
product:
Do not expose this apparatus
to rain, moisture, dripping or
splashing. No objects filled with
liquids, such as vases, shall be
placed on the apparatus.
To prevent risk of electric
shock or fire hazard due to
overheating, do not obstruct
the unit’s ventilation openings
with newspapers, tablecloths,
curtains, and similar items.
Do not install near any heat
sources such as radiators,
heat registers, stoves, or other
apparatus (including amplifiers)
that produce heat.
Do not place sources of naked
flames, such as lighted candles,
on the unit.
Clean this apparatus only with
dry cloth.
Protect the power cord from
being walked on or pinched
particularly at plugs.
Refer all servicing to qualified
service personnel.
Unplug this apparatus during
lightning storms or when un-
used for long periods of time.
Only use attachments/accesso-
ries specified by the manufac-
turer.
Do not install or place this
unit in a bookcase, built-in
cabinet or in another confined
space. Ensure the unit is well
ventilated.

4USER MANUAL - DUX-8C
1. INTRODUCTION
DUX-8C HDMI Matrix, or the Matrix, comes with HDMI 2.0 and HDCP 2.2 compatibility,
and allows eight sources to be switched to any of the eight displays simultaneously.
DUX-8C also provides analog and digital audio de-embedding for every HDMI output.
DUX-8C allows control through front panel buttons, IR Remote, RS232 and LAN control
via Telnet API and Web UI. Independent DIP switch is also provided for advanced EDID
management.
Designed for 1U rackmount and stand-alone installation, DUX-8C offers the convenience
of future-ready Ultra HD A/V switching and distribution solution, and the reliability of
cutting-edge HDMI 2.0 and HDCP 2.2 compatibility.
Features
 Support video source up to 4K@60Hz 4:4:4 8bit.
 Fully compliant with HDMI 2.0.
 HDCP 2.2 compliant.
 Supports 4K HDR.
 Supports analog and digital audio de-embedding for each HDMI output.
 Supports front panel, IR, RS232 and LAN (Telnet API & Web UI) control options.
 Independent DIP switch for advanced EDID management.

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USER MANUAL - DUX-8C
2. PACKING LIST
 1 x DUX-8C
 1 x IR Remote Handset (38 kHz)
 1 x AC Power Cord
 1 x IR Receiver Cable (38 kHz)
 1 x USB to UART Cable
 8 x Phoenix Male Connectors (3.5 mm, 3 pins)
 2 x Mounting Brackets
 1 x User Manual

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3. SPECIFICATIONS
Technical
Input / Output Connections
8 x HDMI IN
8 x HDMI OUT
8 x AUDIO OUT (S/PDIF digital audio out and L/R analog audio
out)
1 x IR EXT.
1 x LAN
1 x RS232
1 x EDID DIP Switch
1 x AC IN (100~240V 50/60Hz)
Input / Output Video Type HDMI 2.0
HDCP 2.2
Input / Output Resolution
800x6008, 1024x7688, 1280x7206,8, 1280x7688, 1280x8008,
1280x9608, 1280x10248, 1360x7688, 1366x7688, 1440x9008,
1600x9008, 1600x12008, 1680x10508, 1920x10806,8,
1920x12008, 3840x2160P2,3,5,6,8 ,4096x21602,3,5,6,8
1 = @ 23.98 Hz, 2 = @ 24 Hz, 3 = @ 25 Hz, 4 = @ 29.97 Hz,
5 = @ 30 Hz, 6 = @ 50 Hz, 7 = @ 59.94 Hz, 8 = @ 60 Hz
Audio Format
• HDMI: Support all known HDMI audio formats including
PCM, Dolby Digital, Dolby Digital Plus, Dolby TrueHD,
Dolby Atmos, DTS-HD Master Audio and DTS:X;
• L/R OUT: Only support PCM 2.0;
• S/PDIF OUT: Support PCM, Dolby and DTS up to 5.1
Channel.
Control
Control Methods IR, Front panel, RS232, LAN (Telnet API & Web UI)
General
Operating Temperature & RH 32°F ~ 113°F (0°C ~ 45°C), 10% ~ 90% (non-condensing)
Storage Temperature & RH -4°F ~ 140°F (-20°C ~ 70°C), 10% ~ 90% (non-condensing)
ESD Protection
Human-body model:
±8kV (air-gap discharge)
±4kV (contact discharge)
Power Supply AC 100~240V 50/60Hz
Power Consumption 1018p: 40W
4K: 60W
Dimensions (W x H x D) 482.6mm x 323.5mm x 43.5mm (With mounting brackets)/
440mm x 323.5mm x 43.5mm (Without mounting brackets)
Weight 3.66kg
Rack Space Required 1U
Certification CE, FCC

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USER MANUAL - DUX-8C
4. PANEL OVERVIEW
4.1 Front Panel
1 2 3 4 5
Item Name Description
1Output Channel
Indicator Indicates input for output port 1-8.
2 IR Receives signals from IR Remote.
3Selection Buttons
(White LED)
Selects input and output channels.
• Left/Right: selects output channels.
• Up/Down: selects input channels.
4Enter Button
(White LED) Press to implement the input and output selection.
5 Power Switch Turns on/off the Matrix.
4.2 Rear Panel
4 5 6 7 8
1 2 3
Item Name Description
1 LAN Uses RJ45 port. Connects to a control system for Web UI and Telnet
control.
2 RS232 Uses DB9 port. Connects to a control system for RS232 pass-through.
3 AUDIO OUT 1-8
Audio de-embedded outputs.
• 3-pin Phoenix female port: for L/R analog audio output.
• Coaxial port: for S/PDIF digital audio output.
4 AC Connects the power cord provided. Accepts AC power of 100~240V
50/60Hz.
5 HDMI IN 1-8 Connects to HDMI sources.
6 HDMI OUT 1-8 Connects to HDMI displays.
7 IR EXT. IR extension port. Connects the IR Receiver Cable provided.
8 EDID Uses DIP Switch for EDID management.

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5. INSTALLATION AND WIRING
5.1 Installation
CAUTION: Before installation, please ensure the Matrix is disconnected from the
power source.
DUX-8C occupies 1U space and can be placed on a solid and stable surface or installed
on a standard equipment rack.
To install the Matrix on an equipment rack:
1. Discharge any static electricity from your body by touching a grounded metal
object.
2. Position and install the mounting brackets using the mounting screws provided.
Brackets attach at the side
toward the front of the Matrix
3. Install the Matrix in the mounting rack by using the mounting screws to affix the
Matrix to the rack.
4. Connect any applicable wires to the device. (For detailed information of wiring,
please refer to 5.3 Wiring.)
CAUTION: DO NOT place other units directly on top of the Matrix when it is rack
mounted, as this will place excessive strain on the mounting brackets.
CAUTION: When adopting rackmouting, distribute the units evenly. Otherwise,
hazardous conditions may be caused by an uneven weight distribution.
CAUTION: Reliable earthing of rack-mounted equipment should be maintained.
5.2 Ventilation
ALWAYS ensure the Matrix is adequately ventilated. Do not block any ventilation
openings. Sufficient airflow must be achieved (by convention or force-air cooling) to
satisfy the ventilation requirements of all the equipment installed within the rack.
NOTE: The maximum operating temperature of the Matrix is 45°C (113°F).

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USER MANUAL - DUX-8C
NOTE: The Matrix shall not be installed in enclosed spaces. It is recommended
that you leave 1U space above the Matrix when you install it in a rack.
5.3 Wiring
NOTE: Please use cables provided by the manufacturer and high-quality cables
recommended by the manufacturer.
WARNING: Please ensure all the units are DISCONNECTED from the power supply
before setting up. Otherwise, circuitry damage or physical injury may be caused.
To complete wiring of the Matrix (Please see “System Wiring” on Page 10) :
1. Connect HDMI IN: Connect HDMI IN 1-8 of the Matrix to 4K or HD source devices
(e.g. laptop, Blu-Ray player, satellite/cable TV, music streaming device, etc.) using
quality HDMI cables.
2. Connect HDMI OUT: Connect HDMI OUT 1-8 of the Matrix to HDMI IN of 4K or
HD displays. Please ensure all sources and displays are compatible and correctly
configured.
3. Connect AUDIO OUT: Connect AUDIO OUT 1-8 of the Matrix to audio devices (e.g.
audio amplifier).
4. Connect for additional control options:
a) IR control: The IR Remote provided is for controlling the Matrix through
infrared signal. If IR extension is required, connect the IR Receiver Cable provided
to the IR EXT port of the Matrix and position the receiver eye in a place accessible
to the Matrix Remote.
b) LAN control (through Web UI or Telnet): Connect the Matrix to the same
network as the control laptop or control system (e.g. NX-2200) via its LAN port.
c) RS232 control: Connect a control laptop or control system (e.g. NX-2200) to
RS232 port of the Matrix.
5. Power on: Connect the AC power cord provided to the Matrix’s AC connector.
Press the power button on the front panel. The Matrix is ready for operation when
the front panel LEDs shows the model name.
NOTE: ALWAYS power off the Matrix before plugging or unplugging any cables.
NOTE: Please follow the “LAST ON FIRST OFF” rule when turning on and off the
system.
Now you can switch between sources and displays by using the Matrix through either
IR Remote, front panel, RS232 or LAN. For detailed control instructions, please refer to
Chapter 6 “CONTROL OF THE MATRIX”.

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Laptop Apple TV
Blu-ray Player 4K Media Player
HDMI Signal HDMI Signal HDMI Signal HDMI Signal HDMI Signal HDMI Signal
HDMI Signal
HDMI Signal
HDMI Signal
Display 1
IR Signal
Display 2
Projector
Audio Signal Audio Signal Audio SignalEthernet
WEB UI RS232 Signal
Amplifier
Speakers
Ethernet Switch
Control System (e.g. NX-2200)
Remote
IR Receiver
Scaler
(e.g. DUX-SCL)
Display 3
1
OUTPUT1 OUTPUT2 OUTPUT3 OUTPUT4 OUTPUT6 OUTPUT5 OUTPUT7 OUTPUT8
2 3
4 5 6 7 8
SOURCESELECT
Ethernet
Ethernet
(Optional)
Laptop
Application Example: System Wiring

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USER MANUAL - DUX-8C
6. CONTROL OF THE MATRIX
DUX-8C HDMI Matrix is designed with ease of connection and control in mind. When
the Matrix is connected and powered on, you can choose the optimal way to control the
unit at your convenience, either through Front Panel, IR Remote (IR Receiver can be
connected when the Matrix is less accessible), LAN (for Web UI or Telnet) or RS232.
The following chapters will explain the basic instructions of the above control methods.
6.1 Front Panel Control
Basic switch of input sources to output displays can be achieved by using front panel
controls.
Power on the Matrix and wait till the front panel LED shows the model name. Then the
Matrix is ready for operation. Now you can select input source for each output.
To select input source for output display:
1. Press the Left ( ) or Right ( ) button to select output channel. The LED blinks to
show the selected output channel.
Blink Slowly Output Selection
2. Press the Up ( ) or Down ( ) button to select input channel. If the LED shows
“--”, the output is closed.
Input Selection
3. Press the Enter ( ) button to confirm the selection. When the selection takes effect
the LED stops blinking.
Enter
TIP: Long press the Enter ( )button, the LED will display “V 12”, which is the
module version of the LED screen.

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6.2 IR Remote Control
DUX-8C HDMI Matrix can be controlled by the IR Remote provided. Point the Remote
directly to the Matrix, now you can select input source for each output display.
If IR extension is required, connect the IR Receiver to the IR EXT port at the rear panel
of the Matrix and ensure the receiver eye is accessible to the Remote.
Please note the IR receiving window on the front panel will remain active when IR
Receiver is connected to the Matrix.
1
OUTPUT 1
OUTPUT 2
OUTPUT 3
OUTPUT 4
OUTPUT 6
OUTPUT 5
OUTPUT 7
OUTPUT 8
System Code
Switch
2
3
4
5
6
7
8
SOURCE SELECT
To select input source for output display:
1. Select the output display from the MATRIX column (1-8).
2. Point the Remote to the “IR” on the Matrix’ front panel or the IR Receiver connected
to the “IR EXT.” on the rear panel.
3. Press the Previous ( ) or Next ( ) button to select the desired input source.
System Code Switch
The IR Remote provided with the Matrix is shipped in “00” IR system code. In the event
the Remote’s IR signal interferes with other IR devices, e.g. TV, DVD player, the Remote
can be switched to “4E” code by pressing the System Code Switch on the Remote
panel. At the same time, you may redefine the IR system code of the Matrix using
the API command (please refer to Index 16 & 17 API command in “Appendix 1: API
Command”).
8
System Code
Switch
Previous Input
Next Input
Output 2
Short press to change the
System Code of the IR Remote.

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USER MANUAL - DUX-8C
6.3 LAN Control (via Web UI)
When connected to a LAN, DUX-8C can be controlled through Telnet or a Web UI
specifically designed. For advanced users who opt to control via Telnet. API command
set for Telnet control is available in “Appendix 1: API Command”. For users prefer
intuitive control, the Web UI will be the option.
The Web UI designed for the Matrix allows basic controls and advanced settings of the
device. The Web UI can be accessed through a modern browser, e.g. Chrome, Safari,
Firefox, Opera, IE10+, etc.
DUX-8C comes with a default IP address of 192.168.10.254. Subnet mask is
255.255.0.0.
Default login password for Web UI is “admin”.
To get access to Web UI:
1. Connect the LAN port of the Matrix to your PC using a straight UTP cable.
2. Set your PC to the same network segment as the Matrix, e.g. 192.168.10.xxx.
3. Enter the Matrix’s IP address 192.168.10.254 in your browser and press enter. The
following window will pop up.
4. Choose the language you wish to use: English or Chinese.
5. Enter password (default password: admin) and click Login to enter the main screen
of Web UI.

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The Web Ui main screen is comprised by Matrix Control and Admin Setting pages.
The Matrix Control is used for basic setting of the Matrix: input and output Switch and
Presets save and load.
The Admin Setting is designed for advanced controls, e.g. CEC Setting, EDID Setting,
HDCP Support, Port Naming, Preset Name, etc.
6.3.1 MATRIX CONTROL
The Matrix Control page is used to perform the following functions:
• Switch
• Preset
1) SWITCH
The Switch section manages distribution of input source to output displays. Click the
switch button ( turns to ) to select the input source for the output display.
• All: one input is routed to all outputs.
• None: None input is routed to the output (or the output is turned off).

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USER MANUAL - DUX-8C
2) Preset
The Presets section saves or loads the input/output switch settings to or from the
Matrix.
• Save: Input/output settings in the Switch section are saved.
• Load: Preset already saved is loaded.
To save a Switch to Preset 1:
1. Complete the input and output setting in the Switch section.
2. Click "Save" in "Preset 1".
3. The following window pops up in the upper right corner to show the preset is
successfully saved.

16 USER MANUAL - DUX-8C
6.3.2 Admin Setting
The Admin Setting page is used for advanced control of the following functions:
• CEC Setting
• EDID Setting
• HDCP Support
• Port Naming
• Preset Name
• Network
• Change Password
• Update Web UI
• LOG
• Custom Web UI LOGO
• Reset All Setting to Default
• Firmware
To enter the Admin Setting page:
1. Click “Admin Setting” tag on the upper right corner of the page;
2. Enter the password (default password: 123456).
3. You will be navigated to the main page of Admin Setting.

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18 USER MANUAL - DUX-8C
1) CEC Setting
CEC Setting allows you to control CEC-enabled devices connected to the Matrix through
HDMI, without the need of touching the device.
• Output: click the drop-down menu to select the output you wish to set up.
• Display On: click to power on the display connected to the output selected.
• Display Off: click to power off the display connected to the output selected.
• Auto Control (Minute): click the up/down arrow to set the time for the display to
power off automatically when no signal is present. For example, if the time is set to
2 minutes, the output display will power off automatically when there’s no signal at
the display for 2 minutes.
• ON/OFF: click to enable or disable the CEC Auto Control.
NOTE:
1) CEC Setting is valid only when the display connected is CEC-enabled.
2) Time range for Auto Control is 0-30 minutes.
2) EDID Setting
EDID Setting allows you to access and configure EDID setting of each input port.
To configure the EDID setting of any input port through Web UI, please ensure the
EDID DIP switch at rear panel of the Matrix is set at “000” (or up position). For more
information, please refer to “EDID MANAGEMENT” on Page 27.

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USER MANUAL - DUX-8C
To set up the EDID setting for HDMI input channel:
1. Select the desired the HDMI output and click to “Read” its EDID setting.
2. Click to save the EDID information read.
3. Go to the target HDMI Input and select the settings from its drop-down menu, then
click to "Apply".
3) HDCP Support
HDCP Support allows you to enable or disable HDCP compatibility of each input. By
default, HDCP Support is switched ON at each input and content protected by HDCP
standard will be received.
• ON: click to switch on the HDCP Support for the desired input.
• OFF: click to switch off the HDCP Support for the desired input.

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4) Port Naming
Port Naming allows you to redefine inputs and outputs to names easy to remember.
• Save: click to save and apply all the changes.
• Reset: click to reset all the changes.
NOTE: The length of each port name shall not exceed 15 characters and can
include letters, numbers, space and Chinese characters.
5) Preset Name
Preset Name allows you to change a preset name to one that is easy to identify or
remember, and to apply or reset any preset selected.
• Save: click to save the preset name change.
• Reset: click to reset the preset changes.
NOTE: The length of each preset name shall not exceed 15 characters and can
include letters, numbers, space and Chinese characters.