Altimium SCA41HE User manual

Sélecteur 18G HDMI, USB-C, Displayport & VGA – Extraction Audio
SCA41HE
HDMI V2.0 4x1 Presentation Switcher with
Audio Extraction
All Rights Reserved
Version: SCA41HE_2021V1.0
User Manual

Sélecteur 18G HDMI, USB-C, Displayport & VGA – Extraction Audio
Table of Contents
1. Product Introduction....................................................................................................1
1.1 Features ............................................................................................................1
1.2 Package List ......................................................................................................1
2. Specification ...............................................................................................................2
3. Panel Description........................................................................................................4
3.1 Front Panel........................................................................................................4
3.2 Rear Panel.........................................................................................................5
4. System Connection.....................................................................................................5
5. Button Control.............................................................................................................6
5.1 Manual Switching ..............................................................................................6
5.2 Automatic Switching ..........................................................................................6
5.3 Display Control ..................................................................................................6
5.4 VGA Resolution Selection..................................................................................7
5.5 EDID Setting......................................................................................................7
6. IR Remote Control ......................................................................................................8
7. RS232 Control ............................................................................................................9
7.1.1 Device Control .........................................................................................9
7.1.2 Source Switching...................................................................................10
7.1.3 VGA Resolution Selection .....................................................................10
7.1.4 EDID Management ............................................................................... 11
7.1.5 Audio Control.........................................................................................13
7.1.6 Display Control ......................................................................................13
7.1.7 CEC Control ..........................................................................................13
7.1.8 Third-party Device Control.....................................................................14
8. Firmware Upgrade ....................................................................................................19

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Sélecteur 18G HDMI, USB-C, Displayport & VGA – Extraction Audio
1. Product Introduction
Thanks for choosing the HDMI V2.0 4x1 Presentation Switcher. The switcher allows
selection of four different sources (one HDMI input, one USB-C input, one DisplayPort
input and one VGA input), and will switch the selected video to HDMI output. It supports
video resolution up to 4K@60Hz 4:4:4 8bit, 1080p, and 3D. In addition, there is the
smart built-in EDID setting can be selected by the 4-pin DIP switch on the rear panel.
The switcher supports stereo and multichannel audio on the HDMI inputs. In addition to
the audio embedded in the HDMI output stream, the audio is simultaneously
de-embedded to an optical digital audio output and a balanced analog audio output.
The switcher features multiple methods of control. When in the AUTO mode, the
switcher will automatically switch to the first detected source device. When the active
source is removed, the switcher will switch from input 1 to 4. The switcher can be
manually controlled by the front panel buttons, IR remote and RS232 commands. CEC
allows the display device can be controlled by the front panel buttons and RS232 CEC
commands.
1.1 Features
 Supports HDMI V2.0 and video resolution up to 4K@60Hz 4:4:4 8bit, 1080p 3D.
 18Gbps high bandwidth and supports HDR 10.
 HDCP 2.3 compliant.
 Supports automatic switching.
 CEC control for display volume and ON/OFF.
 Controllable via RS232 and IR.
 VGA resolution is selectable on the front panel.
 Optical and balanced analog audio for audio de-embedding.
 Smart EDID management for various application and customized setting.
1.2 Package List

1x SCA41HE Switcher

1x Power Adapter (12V DC, 2A)
 2x Mounting Ears with 4 Screws  4x Plastic Cushions
 1x IR Receiver  1x IR Remote
 1x 3-pin Terminal Block  1x 5-pin Terminal Block

1x RS232 Cable (3-pin to DB9)

1x User Manual
Note: Please contact your distributor immediately if any damage or defect in the
components is found.

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Sélecteur 18G HDMI, USB-C, Displayport & VGA – Extraction Audio
2. Specification
Video Input
Input
(1) HDMI IN, (1) USB-C IN, (1) DP IN, (1) VGA IN
Input Connector (4) Type-A female HDMI, (1) Type-C USB, (1) DisplayPort,
(1) Female VGA (15-pin)
HDMI Input Resolution Up to 4K@60Hz 4:4:4 8bit, HDR10
USB-C Input Resolution Up to 4K@60Hz 4:4:4
DP Input Resolution
Up to 4K@60Hz 4:4:4
VGA Input Resolution
Up to 1920x1200@50/60Hz
Video Output
Output
(1) HDMI
Output Connector
(1) Type-A female HDMI
HDMI Output Resolution Up to 4K@60Hz 4:4:4 8bit, HDR10
VGA Scale Resolution
1024x768@60Hz, 1280x720@50Hz, 1280x720@60Hz,
1360x768@60Hz, 1600x1200@60Hz, 1920x1080@50Hz,
1920x1080@60Hz (Default), 1920x1200@60Hz
Audio
Audio Output
(1) OPTICAL, (1) Stereo balanced L/R
Audio Output Connector (1) Toslink connector, (1) 5-pin terminal block
HDMI Audio Format LPCM 7.1 audio, Dolby Atmos®, Dolby® TrueHD, Dolby Digital®
Plus, DTS:X™, and DTS-HD® Master Audio™ pass-through.
DP Audio Format
8 channels LPCM, up to 24bit 192Khz, AC3, DTS
Balanced analog audio Format PCM
Optical Digital Audio Format PCM, Dolby Digital, DTS, DTS-HD
Frequency Response
20Hz to 20kHz, ±1dB
Max Output Level 2.0Vrms ± 0.5dB. 2V = 16dB headroom above -10dBV (316mV)
nominal consumer line level signal
THD+N <0.05% (-80dB), 20Hz ~ 20KHz bandwidth, 1kHz sine at 0dBFS level
(or max level)
SNR
>80dB, 20Hz ~ 20kHz bandwidth
Crosstalk Isolation >70dB, 10kHz sine at 0dBFS level (or max level before clipping)
L-R Level Deviation < 0.3dB, 1kHz sine at 0dBFS level (or max level before clipping)
Frequency Response Deviation <± 0.1dB 20Hz ~ 20KHz
Output Load Capability 1KΩ and higher (supports 10x paralleled 10KΩ loads)
Stereo Channel Separation >70dB@1kHz
Control Part
Control
(1) FW, (1) EDID, (1) IR IN, (1) RS232
Control Connector (1) Micro USB, (1) 4-pin DIP switch, (1) 3.5mm jack,

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Sélecteur 18G HDMI, USB-C, Displayport & VGA
(1) 3-pin terminal block
General
HDMI Version 2.0
HDCP Version
2.3
DP Version
1.2
CEC
Supported
HPD Supported
Bandwidth
18Gbps
HDMI V2.0 Cable Length
4K@60Hz 4:4:4 ≤5m,
4K@60Hz 4:2:0 ≤10m,
1080p ≤15m
Operation Temperature -5 to +55℃(+23° to +131°F)
Storage Temperature -25 to +70℃(-13° to +158°F)
Relative Humidity
10% to 90%, Non-condensing
External Power Supply
Input: AC 100~240V, 50/60Hz, Output: 12V DC 2A
Power Consumption 8W (Max)
Dimension (W*H*D) 300mm x 26mm x 115mm
Net Weight
855g

Sélecteur 18G HDMI, USB-C, Displayport & VGA
1
2
3
4
5
VIDEO SOURCE
DISPLAY CONTROL
VGA RESOLUTION
FW
1
2
3
4
AUTO
ON OFF
1280x720 1920x1080 1920x1200 RES
3. Panel Description
3.1 Front Panel
①Power LED: Illuminates red when the device is in standby, or illuminates green
when the device is power on.
②VIDEO SOURCE:
 Press 1~4 button to select input source respectively, and its corresponding LED
illuminates green.
 Press and hold the AUTO button at least three seconds to enable automatic
switching mode, and its LED illuminates green.
③DISPLAY CONTROL:
 Press ON to turn on the display device.
 Press OFF to turn off the display device.
 Press to mute/unmute audio of display device.
 Press to decrease the audio volume gradually, or press and hold it to
decrease the audio volume constantly.
 Press to increase the audio volume gradually, or press and hold it to
increase the audio volume constantly.
④VGA RESOLUTION:
 When the VGA input is selected, press RES button repeatedly can set the
output resolution to 1280x720, 1920x1080 or 1920x1200.
 One of three LEDs illuminates green to indicate which output resolution is
selected.
⑤FW: Micro-USB port for firmware upgrade.

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Sélecteur 18G HDMI, USB-C, Displayport & VGA
1
2
3
4
5 6 7 8
9
1 2 3 4
EDID IR IN RS232
HDMI OUT OPTI CAL L R
4. VGA IN
3. DP IN
1. HDMI IN 2. USB-C IN
1
0
ON
OFF
Tx Rx
3.2 Rear Panel
①1. HDMI IN: Connects to HDMI video source.
②2. USB-C IN: Connects to the video source with SlimPort output, e.g. Macbook.
③3. DP IN: Connects to DisplayPort video source.
④4. VGA IN: Connects to VGA video source.
⑤VGA Audio IN: Connects to audio source to be embedded in VGA video.
⑥HDMI OUT: Connects to HDMI display device.
⑦OPTICAL: Connects to audio playback device.
⑧L/R (5-pin balanced audio): Connects to audio playback device.
⑨EDID: 4-pin DIP switch for EDID setting.
⑩IR IN: Connects to IR receiver to control the switcher by IR remote.
⑪RS232: Connects to RS232 control device (e.g. PC) to control the switcher by
RS232 commands.
⑫DC 12V: DC barrel port for power adapter connection.
4. System Connection
The following diagram illustrates typical input and output connections that can be
utilized with this switcher:

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Sélecteur 18G HDMI, USB-C, Displayport & VGA
5. Button Control
5.1 Manual Switching
When the switcher is in the manual switching mode, the Auto Mode LED goes out. If
need to change the input source, please directly press the 1, 2, 3 or 4 button, and the
corresponding LED illuminates green immediately.
5.2 Automatic Switching
Press and hold the AUTO button at least three seconds to enable automatic switching,
and the Auto mode LED will light.
When in the Auto mode, the switcher will switch according to the following rules:
 The switcher will switch to the first available active input starting at input 1 to 4.
 New input: The switcher will automatically select the new input once detecting a new
input.
 Reboot: If power is restored to the switcher, it will automatically reconnect the input
before powered off.
 Source removed: When an active source is removed, the switcher will switch to the
first available active input starting at HDMI input 1.
 Press the Video Source button (1, 2, 3 or 4) can directly change the input source. If
the corresponding source device is active, it will be switched as input source;
otherwise, the switcher will switch to the first available active input starting at HDMI
input 1.
 Press and hold the AUTO button at least three seconds again can exit AUTO mode,
but the input source will remain the current setting.
5.3 Display Control
The switcher supports CEC, and the DISPLAY CONTROL buttons on the front panel
are designed for Display On/Off and volume adjustment.
 ON: Display On.
 OFF: Display Off.
 : Mute/unmute display device.
 : Volume down display device.
 : Volume up display device.

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Sélecteur 18G HDMI, USB-C, Displayport & VGA
5.4 VGA Resolution Selection
The RES button on the front panel is designed for VGA resolution selection.
When switch to VGA input, press RES button repeatedly to set the output resolution to
1280x720, 1920x1080 or 1920x1200, and its corresponding LED will illuminate green.
5.5 EDID Setting
The Extended Display Identification Data (EDID) is used for the source device to match
its video resolution with the connected display. The 4-pin DIP switch on the rear panel
can be used to set the EDID to a built-in fixed value. Use the following table to determine
the setting for the 4-pin DIP switch for specific video resolution and audio capabilities.
The switch represents “0” when in the lower (OFF) position, and it represents “1” while
putting the switch in the upper (ON) position.
Switch Status EDID
0000 EDID pass-through (Default)
0001
1920x1080@60Hz RGB 4:4:4 8bit Stereo Audio
0010
1920x1080@60Hz RGB 4:4:4 8bit High Definition Audio
0011
1920x1080@60Hz RGB 4:4:4 12bit Stereo Audio
0100 1920x1080@60Hz RGB 4:4:4 12bit High Definition Audio
0101
3840x2160@60Hz RGB 4:2:0 12bit Stereo Audio
0110 3840x2160@60Hz RGB 4:2:0 12bit High Definition Audio
0111
3840x2160p@60Hz 4:4:4 HDR 12bit Stereo Audio
1000 3840x2160p@60Hz 4:4:4 HDR 12bit High Definition Audio
1001
1280x800@60Hz RGB 4:4:4 8bit Stereo Audio
1010 1920x1200@60Hz RGB 4:4:4 8bit Stereo Audio
1011
User-defined EDID 1.
1100 User-defined EDID 2.
1101
User-defined EDID 3.
1110 User-defined EDID 4.
1111
Enable RS232 EDID management.
Note:
 Stereo Audio: LPCM 2Ch.
 High Definition Audio: LPCM 8Ch, AC-3 6Ch, DTS 5.1, Dolby Digital 5.1.
 The four user-defined EDID can be customized by RS232 command, please refer to
7.2.4 EDID management for more details.

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Sélecteur 18G HDMI, USB-C, Displayport & VGA
6. IR Remote Control
Connect the IR IN port to an IR receiver, the switcher can be controlled by the below IR
remote.
①Enter or exit standby mode.
②Video input selection buttons (1~4) and AUTO
mode button.
③Source device control buttons.
Page Up Page Down
Rewind
Fast
Forward
Pause/Play Stop
Exit Enter
Up
Down
Left Right
Power On/Off
④VGA resolution selection buttons.
⑤Display device control buttons.
Power On/Off Mute/Unmute
Volume Down Volume Up
INPUTS
5 6
Manuall//Auto
SOURCE
OK
VGA RESOLUTION
1280x720 1360x768 1920x1080 1920x1200
DISPLAY
1
2
3
4
5
HDMI 2.0 Presentation Swither