AMX DUX-SCL User manual

USER MANUAL
DUX-SCL
HDMI SCALER

2USER MANUAL - DUX-SCL
HDMI SCALER
Table of Contents
IMPORTANT SAFETY INSTRUCTIONS...................................................................03
INTRODUCTION.....................................................................................................04
PACKING LIST .......................................................................................................05
SPECIFICATIONS ...................................................................................................06
PANEL OVERVIEW.................................................................................................08
SCALER SWITCH ...................................................................................................10
INSTALL HARDWARE ............................................................................................11
RS232 CONTROL...................................................................................................12
TROUBLESHOOTING .............................................................................................13
APPENDIX: API COMMAND...................................................................................14

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USER MANUAL - DUX-SCL
HDMI SCALER
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-SCL
HDMI SCALER
INTRODUCTIONS
DUX-SCL is an HDMI Scaler allowing users to match native resolutions of their displays
and is designed to use with standard displays, HDMI Matrix switchers, etc., where HDMI
is used.
DUX-SCL accepts input resolutions from 800 x 600 to 1920 x 1200 (VESA) and 480p to
2160p (SMPTE) and supports output resolution 1280 x 768, 1280 x 800, 1920 x 1200,
3840 x 2160 and Auto Scaler (VESA) and 1280 x 720P, 1920 x 1080P (SMPTE). Such
variety of output resolution options provide users more freedom while adjusting their
video signal for the best result.
DUX-SCL installs a SCALER switch for manual adjustment of output resolutions. When
connected to a control PC through RS232, the device can be controlled through API
command.
DUX-SCL is ideal for applications where high quality video scaling or 4K-1080P down-
scaling is required due to the mix use of displays in different aspect ratio or preferred
timing. Seamless switching is realizable while DUX-SCL is working with DUX-8C or DUX-
8D HDMI Matrix.
Features
 HDMI Input and Output both support up to 4K@60Hz 4:4:4 8bit.
 HDCP 2.2 compliant.
 Supports scaling output adjustment by SCALER DIP switch.
 Seamless switching when using with DUX-8C or DUX-8D Matrix.

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USER MANUAL - DUX-SCL
HDMI SCALER
PACKING LIST
 1 x DUX-SCL
 1 x Power Adapter (12 VDC, 1.5A)
 1 x Phoenix Male Connector (3.5 mm, 3-pin)
 2 x Mounting Brackets
 1 x User Manual

6USER MANUAL - DUX-SCL
HDMI SCALER
SPECIFICATIONS
Technical
Input 1 x HDMI IN
Input Signal Type TMDS
Input Resolution
• VESA:
800x6008, 1024x7688, 1280x7688, 1280x8008,
1280x9608, 1280x10248, 1360x7688, 1366x7688,
1440x9008, 1600x9008, 1600x12008, 1680x10508,
1920x12008
• SMPTE:
720x480P7,8, 720x576P6, 1280x720P6,7,8,
1920x1080P6,7,8, 3840x2160P2,3,5,6,8, 4096x2160P2,3,5,6,8
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;
Input Video Level 0.5-1.2 V p-p
Output 1 x HDMI OUT
Output Signal Type HDMI: TMDS
Audio Output S/PDIF OUT
Audio Format LPCM 2.0, Dolby 2.0, Dolby 5.1;
Output Resolution
• VESA:
1280x7688, 1280x8008, 1920x12008, 3840x21605,8, and
Auto Scaler
• SMPTE:
1280x720P8, 1920x1080P8
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;
Video Impedance 100 Ω
Maximum Pixel Clock 594 MHz
Control
Control Method RS232

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USER MANUAL - DUX-SCL
HDMI SCALER
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
Power Supply 12 VDC 1.5A
Power Consumption 8 W (Max.)
ESD Protection
Human-body model:
• ±8 kV (Air-gap discharge)
• ±4 kV (Contact discharge)
Dimension (W × H × D) 110 mm × 25 mm × 150.1 mm
Weight 0.5 kg
Certification CE, FCC

8USER MANUAL - DUX-SCL
HDMI SCALER
PANEL OVERVIEW
1 2 3 4
Item Name Description
1 HDMI IN Connects to an HDMI source device.
2 SCALER SWITCH Adjusts the Output scaling.
3 HDMI OUT Connects to an HDMI display device.
4 S/PDIF OUT Connects to an audio system for digital audio signal output.
Front Panel

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USER MANUAL - DUX-SCL
HDMI SCALER
1 2 3 4
Item Name Description
1 DC 12V Connects the Power Adapter provided.
2 POWER LED On: DUX-SCL is powered on.
Off: DUX-SCL is powered off.
3 RS232 For RS232 serial communication or firmware upgrading.
4 USB Connector Connects to a flash drive for upgrading.
Rear Panel

10 USER MANUAL - DUX-SCL
HDMI SCALER
SCALER SWITCH
DUX-SCL installs a “SCALER” Switch for manual adjustment of the scaling output.
By default, the SCALER Switch is in “Auto Scaler” position (all switches are set to 000
or upward). Users are allowed to set DUX-SCL to desired scaling output resolution by
using the SCALER Switch.
0
1
1 2 3
Default Setting: Auto Scaler
DIP SWITCH SCALING OUTPUT RESOLUTION
0 0 0 Auto Scaler (Default)
0 0 1 3840 x 2160@60Hz
0 1 0 3840 x 2160@30Hz
0 1 1 1920 x 1080@60Hz
1 0 0 1920 x 1200@60Hz
1 0 1 1280 x 800@60Hz
1 1 0 1280 x 720@60Hz
1 1 1 1024 x 768@60Hz

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USER MANUAL - DUX-SCL
HDMI SCALER
INSTALL HARDWARE
WARNING:
 Before installation, disconnect the power supplies of all the devices.
 Please use quality cables and accessories specified or provided by the
manufacturer.
 During installation, connect and disconnect cables with caution.
To install DUX-SCL (See “Application Example: System Wiring”):
1. Connect DUX-SCL’s HDMI IN to an HDMI input source (e.g. DVD player, game
console, satellite/cable TV, media server, etc.).
2. Connect DUX-SCL’s HDMI OUT to an HDMI output display (e.g. TV screen) or an
HDMI Matrix (e.g. DUX-8C).
3. If audio output is needed, connect DUX-SCL’s S/PDIF to an audio system.
4. Connect the included Power Adapter to DUX-SCL.
5. Power on all the devices and start operation.
PC Flash Drive
(Firmware Upgrading)
DVD Player
Front Panel
Rear Panel
TV
Audio System
HDMI IN HDMI OUT AUDIO OUT
RS232 (API)
Application Example: Sytem Wiring

12 USER MANUAL - DUX-SCL
HDMI SCALER
RS232 CONTROL
DUX-SCL comes with a RS232 port which accepts API commands for controlling or
firmware upgrading of the unit.
Connect a control PC to the RS232 port on the rear panel, configure the RS232
interface of DUX-SCL and the control PC correctly, then you can send API commands
to the device over a professional serial interface software to start controlling or
firmware upgrading.
Parameters Value
Baud Rate 9600 bps
Data bits 8 bits
Parity None
Stop bits 1 bit
Flow control None
A whole list of API Commands for controlling DUX-SCL is available in Appendix.
To upgrade firmware:
1. Download firmware upgrading execution software (please contact the product
manufacturer or your local dealer) to a flash drive;
2. Connect the flash drive to the USB port;
3. Send Command (See Command 8 in “Appendix: API COMMAND) through CommUart
Assistant to upgrade;
4. When the upgrading is successful, power cycle the device.
PC Flash Drive
(Firmware Upgrading)
DVD Player
Front Panel
Rear Panel
TV
Audio System
HDMI IN HDMI OUT AUDIO OUT
RS232 (API)

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USER MANUAL - DUX-SCL
HDMI SCALER
TROUBLESHOOTING
1. Why the Power LED is off?
• Check that all the devices are on.
• Check that all the cables are qualified and connected properly.
2. Why the display connected to DUX-SCL shows no picture?
• Check that all the devices are on.
• Check that all the cables are qualified and connected properly.
• Check that the display works properly, and that the source device has normal
signals output.
• Ensure that the display device supports HDCP.
• Check that your display device is switched to the correct source input mode.
• Check that no compatibility issue exists between DUX-SCL and the display. If so,
replace the display with other models.
• Check that the SCALER Switch is set to the right position. For more information,
please see SCALER SWITCH.
3. Why the display connected to DUX-SCL shows snow or mosaic?
• Check that all the cables are qualified and connected properly.
• Check that the source input device has no such problem as snow, mosaic or with
a damaged disc. If so, replace with another qualified input source.
• Check that no compatibility issue exists between DUX-SCL and the display. If so,
replace the display with qualified models.

14 USER MANUAL - DUX-SCL
HDMI SCALER
APPENDIX: API COMMAND SET
IDX Function Description More Details
Syntax Example
1 To execute a sink power by CEC
Command:
CSP#T
Return:
CSP#T
Description:
CECPWR_ONOFF will control sink
power on or off.
SP#: #={0, 1}
0 : OFF
1 : ON
Command:
CSP1T
Return:
CSP1T
Description:
Execute the sink power on
2To define a sink power by CEC
automatically
Command:
CSPA#T
Return:
CSPA#T
Description:
SPA#: #={0, 1}
0 : Disable
1 : Enable
Command:
CSPA1T
Return:
CSPA1T
Description:
Enable to control the sink power by
CEC automatically
3To define a Delay Time to execute a
sink power off when no active signal
Command:
CD#SPT
Return:
CD#SPT
Description:
CECAUTO_DELAY is short for CEC
auto Power Delay Timing
D#: #={0~30min}
Command:
CD5SPT
Return:
CD5SPT
Description:
Define Delay 5 minutes to control
the sink power off when no active
signal

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USER MANUAL - DUX-SCL
HDMI SCALER
IDX Function Description More Details
Syntax Example
4 To verify output resolution
Command:
SRT
Return:
SRT( # )
Description:
R#: # = {1~17, 101~117}
1 : Fix 3840x2160@60
2 : Fix 3840x2160@30
3 : Fix 1920x1200@60
4 : Fix 1920x1080@60
5 : Fix 1280x720@60
6 : Fix 1600x1200@60
7 : Fix 1280x800@60
8 : Fix 1024x768@60
101 : Auto 3840x2160@60
102 : Auto 3840x2160@30
103 : Auto 1920x1200@60
104 : Auto 1920x1080@60
105 : Auto 1280x720@60
106 : Auto 1600x1200@60
107 : Auto 1280x800@60
108 : Auto 1024x768@60
Auto ( preferred native timing of
the display )
Command:
SRT
Return:
SRT( 1 ) or SRT( 101 )
Description:
Output resolution is Fix
3840x2160@60 or Auto
3840x2160@60
5 To reset system setting
Command:
~SYSR!
Return:
~SYSR!
Description:
Reset system setting
Command:
~SYSR!
Return:
~SYSR!
Description:
Reset system settings
6 To cause a warm reboot
Command:
~APP!
Return:
~APP!
Description:
Cause a warm reboot
Command:
~APP!
Return:
~APP!
Description:
Cause a warm reboot
7To determine the system’s Applica-
tion Code version
Command:
~VER!
Return:
~VER!( ^^^ )
Description:
Determine the system’s Applica-
tion Code version
Command:
~VER!
Return:
~VER!( 1.0 )
Description:
The system’s version is 1.0

16 USER MANUAL - DUX-SCL
HDMI SCALER
IDX Function Description More Details
Syntax Example
8To upgrade the system’s Application
Code
Command:
~UPG!
Return:
~UPG!
Description:
Upgrade the system’s Application
Code
Command:
~UPG!
Return:
~UPG!
Description:
Upgrade the system’s Application
Code
9 To set UART baudrate
Command:
CUB#T
Return:
CUB#T
Description:
UB#: # = {1~3}
1 : 9600
2 : 57600
3 : 115200
Command:
CUB1T
Return:
CUB1T
Description:
Set UART baudrate to 9600
10 To set UART end char
Command:
CUE#T
Return:
CUE#T
Parameter:
UE#: # = {1~4}
1 : NULL
2 : 0X0D
3 : 0X0A
4 : 0X0D 0X0A
Description:
Set UART endchar
Command:
CUE1T
Return:
CUE1T
Description:
Set UART end char to null
11 To verify UART end char
Command:
SUET
Return:
SUET( # )
Parameter:
# : # = {1~4}
1 : NULL
2 : 0X0D
3 : 0X0A
4 : 0X0D 0X0A
Description:
Get UART end char
Command:
SUET
Return:
SUET( 1 )
Description:
UART end char is null

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USER MANUAL - DUX-SCL
HDMI SCALER
IDX Function Description More Details
Syntax Example
12 To config UART CMD of Power ON
Command:
CDON# # #T
Return:
CDON# # #T
Description:
# : # = {00 ~ FF}
# # # : string of HEX
Command:
CDON00 01 0AT
Return:
CDON00 01 0AT
Description:
Config UART CMD of Power ON is
0X00 0X01 0X0A
13 To verify UART CMD of Power ON
Command:
SDONT
Return:
SDONT( # # # )
Description:
# : # = {00 ~ FF}
# # # : string of HEX
Command:
SDONT
Return:
SDONT( 00 01 0A )
Description:
UART CMD of Power ON is 0X00
0X01 0X0A
14 To config UART CMD of Standby
Command:
CDOF# # #T
Return:
CDOF# # #T
Description:
# : # = {00 ~ FF}
# # # : string of HEX
Command:
CDOF00 01 0AT
Return:
CDOF00 01 0AT
Description:
Config UART CMD of Standby 0X00
0X01 0X0A
15 To verify UART CMD of Standby
Command:
SDOFT
Return:
SDOFT( # # # )
Description:
# : # = {00 ~ FF}
# # # : string of HEX
Command:
SDOFT
Return:
SDOFT( 00 01 0A )
Description:
UART CMD of Standby is 0X00 0X01
0X0A
16 To config UART Auto Power Enable/
Disable
Command:
CDFG#T
Return:
CDFG#T
Description:
DFG# : # = {0, 1}
0 : Disable
1 : Enable
Command:
CDFG1T
Return:
CDFG1T
Description:
Config UART Auto Power Enable

18 USER MANUAL - DUX-SCL
HDMI SCALER
IDX Function Description More Details
Syntax Example
17 To set Input EDID
Command:
CE#T
Return:
CE#T
Description:
E# : # = {1 ~ 15}
1 : 3840x2160@60_2ch
2 : 3840x2160@30_2ch
3 : 1920x1200@60_2ch
4 : 1920x1080@60_2ch
5 : 1280x800@60_2ch
6 : 1280x720@60_2ch
7 : 1024x768@60_2ch
8 : 3840x2160@60_6ch
9 : 3840x2160@30_6ch
10 : 1920x1200@60_6ch
11 : 1920x1080@60_6ch
12: 1280x800@60_6ch
13: 1280x720@60_6ch
14: 1024x768@60_6ch
15: copy
Command:
CE1T
Return:
CE1T
Description:
Set input Fix EDID max timing
3840x2160@60_2ch

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USER MANUAL - DUX-SCL
HDMI SCALER
AMX DUX SERIES
DUX-8C
Compact 8x8 HDMI 2.0
matrix switcher for video
signals up to 4K@60Hz 4:4:4
(bandwidth 18 Gbps)
DUX-8D
Dual output 8x8 HDMI 2.0
matrix switcher with 4 mir-
rored HDBT outputs for vid-
eo signals up to 4K@60Hz
4:4:4 (bandwidth 18 Gbps)
DUX-TX HDMI 1.4 over HDBT TX up
to 100m
DUX-RX HDMI 1.4 over HDBT RX up
to 100m
DUX-TX-70 HDMI 1.4 over HDBT TX up
to 70m
DUX-RX-70 HDMI 1.4 over HDBT RX up
to 70m
DUX-SCL HDMI scaler up to 4K@60Hz
4:4:4
DUX-SRX HDMI scaling receiver up to
4K@60Hz 4:4:4
DUX-SRX HDMI 1.4 & VGA over HDBT
TX up to 100m
DUX-SRX-WP HDMI 1.4 & VGA over HDBT
wall-plate TX up to 100 m

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