Altimium SCA21T User manual

SCA21T
2x1 4K Scaler Switcher
All Rights Reserved
Version: SCA21T_2017V1.0
User Manual

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2x1 4K Scaler Switcher
Preface
Read this user manual carefully before using the product. Pictures shown in this manual
is for reference only. Different models and specifications are subject to real product.
This manual is only for operation instruction only. The functions described in this version
are updated till August 7, 2017. In the constant effort to improve our product, we reserve
the right to make functions or parameters changes without notice or obligation. Please
refer to the dealers for the latest details.
FCC Statement
This equipment generates, uses and can radiate radio frequency energy and, if not
installed and used in accordance with the instructions, may cause harmful interference
to radio communications. It has been tested and found to comply with the limits for a
Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference in a commercial
installation.
Operation of this equipment in a residential area is likely to cause interference, in which
case the user at their own expense will be required to take whatever measures may be
necessary to correct the interference.
Any changes or modifications not expressly approved by the manufacture would void
the user’s authority to operate the equipment.

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SAFETY PRECAUTIONS
To insure the best from the product, please read all instructions carefully before using
the device. Save this manual for further reference.
Unpack the equipment carefully and save the original box and packing material for
possible future shipment.
Follow basic safety precautions to reduce the risk of fire, electrical shock and injury
to persons.
Do not dismantle the housing or modify the module. It may result in electrical shock
or burn.
Using supplies or parts not meeting the products’ specifications may cause damage,
deterioration or malfunction.
Refer all servicing to qualified service personnel.
To prevent fire or shock hazard, do not expose the unit to rain, moisture or install this
product near water.
Do not put any heavy items on the extension cable in case of extrusion.
Do not remove the housing of the device as opening or removing housing may
expose you to dangerous voltage or other hazards.
Install the device in a place with fine ventilation to avoid damage caused by
overheat.
Keep the module away from liquids.
Spillage into the housing may result in fire, electrical shock, or equipment damage. If
an object or liquid falls or spills on to the housing, unplug the module immediately.
Do not twist or pull by force ends of the cable. It can cause malfunction.
Do not use liquid or aerosol cleaners to clean this unit. Always unplug the power to
the device before cleaning.
Unplug the power cord when left unused for a long period of time.
Information on disposal for scrapped devices: do not burn or mix with general
household waste, please treat them as normal electrical wastes.

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2x1 4K Scaler Switcher
Content
1. Introduction.................................................................................................................1
1.1 Introduction to SCA21T .....................................................................................1
1.2 Feature..............................................................................................................1
1.3 Package List......................................................................................................2
2. Specification ...............................................................................................................3
3. Panel Description........................................................................................................4
3.1 Front Panel........................................................................................................4
3.2 Rear Panel.........................................................................................................5
4. System Connection.....................................................................................................6
4.1 Usage Precaution..............................................................................................6
4.2 System Diagram................................................................................................6
5. Button Control.............................................................................................................7
5.1 Signal Switching................................................................................................7
5.2 Volume Adjustment............................................................................................7
5.3 Output Resolution Selection..............................................................................8
6. RS232 Control............................................................................................................9
6.1 RS232 Control Software....................................................................................9
6.2 RS232 Command............................................................................................11
6.2.1 System Configuration............................................................................11
6.2.2 Signal Switching....................................................................................11
6.2.3 Audio Setting .........................................................................................12
6.2.4 Output Resolution Selection..................................................................12
6.2.5 EDID Management................................................................................12
6.2.6 Baudrate Setting....................................................................................13
7. Panel Drawing ..........................................................................................................14
8. Troubleshooting & Maintenance ...............................................................................15
9. Customer Service.....................................................................................................16

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2x1 4K Scaler Switcher
1. Introduction
1.1 Introduction to SCA21T
The SCA21T is a professional 2x1 4K Scaler Switcher that scales HDMI/VGA video
signal to an HDBaseT output by selecting output resolution from 720p to 4K via OSD.
The HDBaseT output supports bidirectional PoH and can connect to a compatible
HDBaseT matrix or receiver up to a maximum of 70 meters (230 ft) (HDBaseT matrix or
receiver sold separately). With 1 IR In and 1 IR Out and 1 RS232, the IR and RS232
control signals can be transmitted bi-directionally between the SCA21T and a
compatible HDBaseT matrix or receiver.
The product supports advanced EDID management and is HDCP 2.2 compliant. Video
and audio sources can be selected via front panel button or RS232 commands by 3rd
Party control device. Moreover, the product features volume buttons to turn up/down the
volume level.
1.2 Feature
Features 1 HDMI input and 1 VGA input with auxiliary audio input.
The output resolution can be selected from 720p to 4k x 2k @30Hz 4:4:4 to assure
preferred output.
Transmits 4Kx2K up to 131ft (40m) or 1080p up to 230ft (70m) via HDBaseT port.
Supports volume control via buttons.
Automatically switch based on video sensing.
Supports RS232 pass-through to communicate control signal between the scaler
and the connected HDBaseT matrix or receiver.
Allows the connected source and display to be controlled via bi-directional IR
pass-through remotely.
Supports bidirectional PoH, the HDBaseT receiver can be powered by this KIT, or
this KIT can be powered by receiver via HDBaseT port.
Supports advanced built-in EDID management.

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1.3 Package List
1 x SCA21T 2x1 4K Scaler Switcher
1 x Power Adapter (12VDC, 2A)
2 x Mounting Ears with 4 Screws
4 x Plastic Cushions
1 x RS232 Cable
1 x User Manual
Note: Please contact your distributor immediately if you found any damage or defect in
the components.

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2x1 4K Scaler Switcher
2. Specification
Input & Output
Input
(1) HDMI; (1) VGA; (1) AUDIO
Input Connector (1) Type A Female HDMI; (1) female VGA (15-pin); (1)
3.5mm mini jack
Output
(1) HDBaseT
Output Connector
(1) Female RJ45(with LED indicators)
Control
(1) IR IN; (1) IR OUT; (1) RS232
Control Connector
(2) 3.5mm mini jacks; (1) 3-pin phoenix connectors
General
Input Resolution

HDMI: Up to 4K@60Hz 4:2:0, supports HDMI1.4, and
HDCP2.2 compliant.
VGA: Up to 1920x1200@60Hz.
Output Resolution
3840x2160@30Hz,1920x1080@60Hz, 1080x 720p@60hz,
supports HDMI1.4, and HDCP1.4 compliant.
Transmission Distance
4K≤40m; 1080p≤70m (High-qualified Cat5e/6/7 cable)
Bandwidth 10.2Gbps
EDID
In-built EDID management
External Power Supply
Input:100V~240V AC; Output:12VDC 2A
Power Consumption 8w (max)
Operation Temperature
-10 ~ +40
℃(+14℉~ +104℉)
Storage Temperature
-15 ~ +55
℃(+5℉~ +131℉)
Relative Humidity
10% ~ 90%
Dimension (W*H*D)
195mm x 23.6mm x 100mm (640ft x 77ft x 328ft)
Net Weight (g)
303g

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3. Panel Description
3.1 Front Panel
No. Name Description
①Power LED Red when powered on.
②Signal LED

AUTO: Auto switching activity LED.
HDMI: HDMI input activity LED.
VGA: VGA input activity LED.
③
Auto Switching Selector
Press this to enter / exit auto switching mode.
④Volume Down Press this to decrease the output volume of scaler
switcher and display.
⑤Volume Up
Press this to increase the output volume of scaler
switcher and display.
⑥OUTPUT RES Press this to enter On Screen Display menu (OSD) to
select the output resolution.
⑦
FIRMWARE
Micro USB port, used for firmware update.
FW
AUTO VGAHDMI
SOURCE / AUTO-3s OUTPUT RES
1234567

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3.2 Rear Panel
No. Name Description
①1-HDMI IN HDMI input port, connect with HDMI source device.
②
2-VGA IN
VGA input port, connect with VGA source device.
③
AUDIO IN
VGA auxiliary audio input.
④
IR IN
Connect with IR receiver to control device via IR.
⑤IR OUT Connect with IR emitter to control source via IR.
⑥RS232

Serial port, connect a control device (PC) to
control the SCA21T.
Control the third-party device from control device
based on RS232 pass-through.
⑦HDBaseT OUT
Connect with HDBaseT matrix or receivers via
Cat5e/6/7 cable.
⑧
DC 12V
Conenct the including power adaptor.
DC 12V
AUDIO IN2-VGA IN1-HDMI IN IR OUT RS232
IR IN
Tx Rx
HDBaseTOUT
12345678

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2x1 4K Scaler Switcher
4. System Connection
4.1 Usage Precaution
Verify all components and accessories included before installation.
System should be installed in a clean environment with proper temperature and
humidity.
If the scaler switcher will be permanently mounted to a surface, attach the included
mounting ears with the supplied screws.
If the scaler switcher will be sitting on a shelf, attach the included plastic cushions to
the bottom of the unit.
All of the power switches, plugs, sockets and power cords should be insulated and
safe.
All devices should be connected before power on.
4.2 System Diagram
DC 12V
AUDIO I N
2-VGAIN
1-HDMI IN IR OUT RS232
Tx Rx
IR IN HDBaseT OUT
HDMI:
VGA:
IR:
Control:
HDBaseT:
Audio:
RX
TX
Projector
Blu-Ray
IR Emitter
Projector Remote IR Receiver
Laptop
IR
Receiver
Blu-Ray Remote IR
Emitter
SCU21T
Receiver

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2x1 4K Scaler Switcher
5. Button Control
Front panel buttons can be used for video switching, volume adjusting and output
resolution selection.
5.1 Signal Switching
①Manual Switching
Press the SORCE/AUTO-3s button to select the HDMI or VGA source, the
corresponding green activity LED (HDMI/VGA) will be lighted up.
②Auto Switching
Long-press the SORCE/AUTO-3s button at least 3 seconds to enable auto switching
mode, the green activity LED (AUTO) will be lighted up. Press this button again to select
next source and exit auto mode.
The auto switching mode abides by the following principles:
New Input
Once new source is connected, the new source will be automatically switched to input
signal.
Rebooting Device
SCA21T has the ability to save the last configuration before losing power. The switcher
automatically enters the mode as last mode used; moreover, it detects all the inputs and
memorizes the connection status for future rebooting using. If the last displayed signal is
still available, the unit will output the signal. Otherwise, the unit will detect all the input
signals wit priority from HDMI to VGA. When the first signal was detected, it will transfer
to output.
Signal Removing
Once removing the current display signal, SCA21T will detect all input signals with
priority from HDMI to VGA. It will transfer the signal firstly detected to be available to
output device.
5.2 Volume Adjustment
①Press the Volume Upbutton to increase the output volume of scaler switcher and
display.
②Press the Volume Down button to decrease the output volume of scaler switcher
and display.

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5.3 Output Resolution Selection
①Resolution Selection
Step1: Press the OUTPUT RES button to enter the following resolution list shown as
below.
Step2: Press this button again to move up and down at the list.
Step3: Long-press this button at least 2 seconds to confirm the selected output
resolution.
②Resolution Reset
Long-press the OUTPUT RES button at least 5 seconds to reset the output resolution to
default 720P.

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2x1 4K Scaler Switcher
6. RS232 Control
Connect the control device (PC) to the RS232 port of SCA21T, The SCA21T can be
controlled by sending RS232 commands via RS232 control software installed in PC.
The RS232 port supports pass-through function, in additional, RS232 commands can be
transmitted bi-directionally between SCA21T and HDBaseT receiver, so it is able to
control a third party device from local or remote. The baud rate supports 2400, 4800,
9600(default), 19200, 38400, 57600 or 115200.
6.1 RS232 Control Software
Installation:Copy the control software file to the computer connected with SCA21T.
Uninstallation:Delete all the control software files in corresponding file path.
Basic Settings:
First to connect SCA21T with all input devices and output devices needed, then to
connect it with a computer which is installed with RS232 control software. Finally,
double-click the software icon to run this software.
Here we take the software CommWatch.exe as example. The icon is showed as below:

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The interface of the control software is showed as below:
Please set the parameters of COM number, bound rate, data bit, stop bit and the parity
bit correctly, and then the command is ready to be sent in Command Sending Area.
Parameter Configuration area
Monitoring area, indicates if the
command sent works.
Command Sending area

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6.2 RS232 Command
Communication protocol: RS232 Communication Protocol
Baud rate: 9600 Data bit: 8 Stop bit: 1 Parity bit: none
6.2.1 System Configuration
Command Function Feedback
SFUD<CR><LF> Software upgrading Software Update
GET VER<CR><LF> Check the software version Version Vx.x.x
FRST<CR><LF> Restore factory default Factor Reset
WAKE<CR><LF> Wake up the system Wake Up
STBY<CR><LF> Turn the system to standby
mode Go To Standby
GET STA<CR><LF> Get the system status
Input:VGA
Resolution: 1024x768
Manual Switching
Source Volume: 60
EDID: Initial
HDCP: ON
6.2.2 Signal Switching
Command Function Feedback
SWIN H1<CR><LF> Switch to HDMI input Switch to hdmi
SWIN VG<CR><LF> Switch to VGA input Switch to vga
AUTO 01<CR><LF> Enable auto switching mode Auto Switching
AUTO 00<CR><LF> Disable auto switching mode Manual Switching

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6.2.3 Audio Setting
Command Function Feedback
AUMT S1<CR><LF> Mute source audio Audio Mute Source:
Enable
AUMT S0<CR><LF> Unmute source audio Audio Mute Source:
Disable
VOLS AP<CR><LF> Increase the source volume to xx
(xx=0~60) Source Volume: xx
VOLS AN<CR><LF> Decrease the source volume to
xx (xx=0~60) Source Volume: xx
VOLS xx<CR><LF> Set the source volume to xx
(xx=0~60) Source Volume: xx
6.2.4 Output Resolution Selection
Command Function Feedback
SRES 01<CR><LF> Change output resolution to
3840x2160
Resolution:
3840x2160
SRES 02<CR><LF> Change output resolution to
1920x1080
Resolution:
1920x1080
SRES 03<CR><LF> Change output resolution to
1280x720 Resolution: 1280x720
6.2.5 EDID Management
Command Function Feedback
EDID DF<CR><LF> EDID default EDID: Initial
EDID MN<CR><LF> Get the EDID data from display EDID: Manage
EDID US<CR><LF>
When the command applied,
system prompts to upload the
user-defined EDID file (.bin) from
U-disk.
EDID: User

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6.2.6 Baudrate Setting
Command Function Feedback
BAUD 115200<CR><LF> Set RS232 baudrate to 115200 Set Baudrate 115200
BAUD 57600<CR><LF> Set RS232 baudrate to 57600 Set Baudrate 57600
BAUD 38400<CR><LF> Set RS232 baudrate to 38400 Set Baudrate 38400
BAUD 19200<CR><LF> Set RS232 baudrate to 19200 Set Baudrate 19200
BAUD 9600<CR><LF> Set RS232 baudrate to 9600 Set Baudrate 9600
BAUD 2400<CR><LF> Set RS232 baudrate to 2400 Set Baudrate 2400
BAUD 4800<CR><LF> Set RS232 baudrate to 4800 Set Baudrate 4800

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7. Panel Drawing
DC 12VAUDIO IN2-VGA IN1-HDMI IN IR OUT RS232IR IN
Tx Rx
HDBaseTOUT
Tx
2x1 4K Scaler Switcher
100 mm(328ft)
FW
AUTO VGA
HDMI
SOURCE / AUTO-3s OUTPUT RES
195 mm(640ft)
23.6 mm 77ft

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2x1 4K Scaler Switcher
8. Troubleshooting & Maintenance
Problems Potential Causes Solutions
Output image with white
noise.
Bad quality of the
connecting cable.
Try another high quality
cable.
Fail or loose connection.
Make sure the connection
is good.
No output image when
switching.
No signal at the input /
output end.
Check with oscilloscope or
multimeter if there is any
signal at the input/ output
end.
Fail or loose connection. Make sure the connection
is good.
The switcher is broken Send it to authorized
dealer for repairing.
POWER
indicator doesn’t
work or no respond to any
operation.
Fail connection of power
cord. Make sure the power cord connection is good.
Cannot control the device
by control device (e.g. a
PC) through RS232 port.
Wrong RS232
communication
parameters.
Make sure RS232
communication parameters
are correct.
Broken RS232 port. Check with the authorized
dealer.
If your problem persists after following the above troubleshooting steps, seek further
help from authorized dealer or our technical support.

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9. Customer Service
The return of a product to our Customer Service implies the full agreement of the
terms and conditions hereinafter. There terms and conditions may be changed without
prior notice.
①Warranty
The limited warranty period of the product is fixed 3 (three) years.
②Scope
These terms and conditions of Customer Service apply to the customer service
provided for the products or any other items sold by authorized distributor only.
③Warranty Exclusions:
Warranty expiration.
Factory applied serial number has been altered or removed from the product.
Damage, deterioration or malfunction caused by:
Normal wear and tear.
Use of supplies or parts not meeting our specifications.
No certificate or invoice as the proof of warranty.
The product model showed on the warranty card does not match with the
model of the product for repairing or had been altered.
Damage caused by force majeure.
Servicing not authorized by distributor.
Any other causes which does not relate to a product defect.
Shipping fees, installation or labor charges for installation or setup of the
product.
④Documentation:
Customer Service will accept defective product(s) in the scope of warranty
coverage at the sole condition that the defeat has been clearly defined, and upon
reception of the documents or copy of invoice, indicating the date of purchase, the
type of product, the serial number, and the name of distributor.
Remarks: For further assistance or solutions, please contact your local distributor.