ALFAtron ALF-21E-SOFTCODEC Manuel utilisateur

www.alfatronelectronics.com

ALFATRON ELECTRONICS GmbH GERMANY

ALF-21E-SOFTCODEC

18G 2x1 Presentation Switcher with Soft

Codec and CEC

ALF-21E-SOFTCODEC

Preface

Please carefully read through this user manual before using the product’

. Pictures shown in this manual are for reference only. Models and specification may

differ and are subject to final product releases and future product updates’. This manual

is only for operation instruction, please contact the local distributor for maintenance

assistance. The functions described in this version were updated till April, 2019. In the

constant effort to improve the 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.

Do not dispose of this product with the normal household waste at the end of

its life cycle. Return it to a collection point for the recycling of electrical and

electronic devices. This is indicated by the symbol on the product, user

manual or packaging. The materials are reusable according to their markings.

By reusing, recycling or other forms of utilisation of old devices you make an

important contribution to the protection of our environment. Please contact

your local authorities for details about collection points.

ALF-21E-SOFTCODEC

SAFETY PRECAUTIONS

To ensure 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 optical 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.

ALF-21E-SOFTCODEC

Table of Contents

1. Product Introduction....................................................................................................1

1.1 Features ............................................................................................................1

1.2 Package List ......................................................................................................2

2. Specifications..............................................................................................................3

3. Panel Description........................................................................................................5

3.1 Front Panel ........................................................................................................5

3.2 Rear Panel.........................................................................................................6

4. System Connection.....................................................................................................7

4.1 Usage Precaution ..............................................................................................7

4.2 System Diagram ................................................................................................7

5. Button Control.............................................................................................................8

5.1 Manual Switching ..............................................................................................8

5.2 Automatic Switching ..........................................................................................8

5.3 Display Control ..................................................................................................8

5.4 EDID Settings ....................................................................................................9

6. RS232 Control ..........................................................................................................11

6.1 RS232 Control Software .................................................................................. 11

6.2 RS232 Command ............................................................................................13

6.2.1 Device Control .......................................................................................13

6.2.2 Source Switching...................................................................................13

6.2.3 User-defined EDID ................................................................................14

6.2.4 Serial Baud Rate Setting .......................................................................14

6.2.5 CEC/RS232 Function Setting ................................................................15

6.2.6 Display Control ......................................................................................16

6.2.7 Third-party Device Control.....................................................................17

7. Panel Drawing ..........................................................................................................22

8. Troubleshooting & Maintenance ...............................................................................23

9. Warranty ..................................................................... Error! Bookmark not defined.

ALF-21E-SOFTCODEC

1. Product Introduction

The ALF-21E-SOFTCODEC HDMI 2.0 2x1 Presentation Switcher is designed to switch

HDMI input or USB-C input to one HDMI output. It supports video resolution up to

4Kx2K@60Hz 4:4:4 8bit, 1080P, and 3D. In addition, there is smart built-in EDID setting

which can be selected by the 4-pin DIP switch on the front 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 a balanced analog audio output. It also supports device extension by

providing one type-B USB port for host connection, and two type-A USB ports for HID

devices such as a camera, microphone, keyboard etc.

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 to the lowest numbered input. The switcher

can be manually controlled by the front panel buttons and RS232 commands. CEC

allows the display device to be controlled by the front panel buttons and RS232 CEC

commands.

1.1 Features

18G 2x1 switcher with HDMI and USB-C inputs.

Supports automatic switching.

Controllable via front panel buttons and RS232.

Supports HDMI 2.0, 4Kx2K@60Hz 4:4:4, HDR 10, Dolby Vision, HDCP 2.2.

Provides charging on USB-C port up to 40W.

Provides USB data (USB 3.0/2.0) and 4K video transmission on USB-C port.

Balanced analog audio for audio de-embedding.

Peripheral units (e.g. microphone and camera) can be connected by type-A USB

(USB 3.0/2.0) ports and automatically switched along with HDMI and USB-C input

as USB DEVICES for corresponding HOST.

Smart EDID management capable with applications and customized setting.

Front panel buttons trigger both CEC and RS232 commands for display control.

(ON, OFF, MUTE, VOL+, VOL -).

ALF-21E-SOFTCODEC

1.2 Package List

1x ALF-21E-SOFTCODEC 18G 2x1 Presentation Switcher

2x Mounting Ears with 4 Screws

4x Plastic Cushions

1x 5-pin Terminal Block

1x RS232 Cable (3-pin terminal block to DB9)

1x Power Cord

1x Power Adapter (24V DC, 2.71A)

1x User Manual

Note:Please contact your distributor immediately should any damage or defect in the

components is found.

ALF-21E-SOFTCODEC

2. Specification

Video

Video Input

(1) HDMI, (1) USB-C

Video Input Connector (1) Type-A female HDMI, (1) Type-C USB

HDMI Input Resolution Up to 4Kx2K@60Hz 4:4:4 8bit

USB-C Input Resolution

Up to 4Kx2K@30Hz 4:4:4

Video Output

(1) HDMI

Video Output Connector (1) Type-A female HDMI

HDMI Output Resolution

Up to 4Kx2K@60Hz 4:4:4 8bit

HDMI Version

2.0

HDCP Version 2.2

USB Version 3.0

HDR 10

Supported

CEC

Supported

HPD Supported

Audio

Audio Output

(1) AUDIO OUT (Stereo balanced L/R)

Audio Output 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

Stereo balanced L/R audio

Format

PCM

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

<±0.5dB 20Hz ~ 20KHz

Output Load Capability 1KΩ and higher (supports 10x paralleled 10KΩ loads)

Stereo Channel Separation >70dB@1KHz

Control Part

Control

(1) EDID, (1) FW, (1) RS232, (1) HOST, (2) DEVICE

Control Connector (1) 4-pin DIP switch, (1) Micro-USB, (1) 3-pin terminal block, (1)

Type-B USB 3.0, (2) Type-A USB 3.0

General

HDMI 2.0 Cable Length 4K@60Hz 4:4:4 ≤5m,

4K@60Hz 4:2:0 ≤ 10m,

ALF-21E-SOFTCODEC

1080P ≤ 15m

Bandwidth

18Gbps

Operation Temperature

-10

℃

~ +55

℃

Storage Temperature -25℃~ +70℃

Relative Humility

10% ~ 90%

External Power Supply

Input: AC 100~240V, 50/60Hz, Output: 24V DC 2.71A

Power Consumption

54W (Max)

Dimension (W*H*D) 168.0mm x 24.5mm x 95.0mm

Net Weight

245g

ALF-21E-SOFTCODEC

3. Panel Description

3.1 Front Panel

①Power LED: The LED illuminates red when the device is powered on.

②INPUT:

A. HDMI: The LED illuminates green when the HDMI input is selected in AUTO

mode or illuminates orange when the HDMI input is selected in manual mode.

B. USB-C: The LED illuminates green when the USB-C input is selected in AUTO

mode or illuminates orange when the USB-C input is selected in manual mode.

C. SELECT AUTO/3s: Press the button to select the next input source or press

and hold the button at least 3 seconds to enable auto switching mode. Note

that the factory default switching mode is AUTO.

③DISPLAY:

A. Press ON to turn on the display.

B. Press OFF to turn off the display.

C. Press to mute/unmute display audio.

D. Press to decrease the audio volume gradually or press and hold it to

decrease the audio volume continually.

E. Press to increase the audio volume gradually or press and hold it to

increase the audio volume continually.

④EDID: 4-pin DIP switch for EDID setting.

⑤FW: Micro-USB port for firmware upgrade.

EDID

OFF

1 2 3 4

OFF

HDMI USB-C SELECT

AUTO/3s

INPUT DISPLAY

CCDE

345

ALF-21E-SOFTCODEC

3.2 Rear Panel

①HDMI IN: Type-A female HDMI input port to connect HDMI video source.

②USB-C IN: Type-C USB with charging capability to connect the MacBook or other

device with Slim Port output.

Note: The USB 3.0 cable is recommended to be used to ensure optimal machine

performance.

③HDMI OUT: Type-A female HDMI output port to connect video display.

④AUDIO OUT: 5-pin terminal block for balanced audio output.

⑤RS232: 3-pin terminal block to connect control device (e.g. PC) or third-party

device for RS232 control.

⑥HOST: Type-B USB ports for host connection.

⑦DEVICES: Two type-A USB ports to connect HID devices (e.g. microphone and

camera). The HID devices are used to control the HOST when the HDMI input has

been selected, or to control the USB-C source device (e.g. MacBook) when the

USB-C input has been selected.

⑧DC 24V: DC barrel port for power adapter connection.

HDMI IN USB-C IN HDMI OUT AUDIO OUT DEVICES

1 2

RS232 HOST

L R

Tx Rx

DC 24V

12345678

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