VLHDBSP1X4V2
1×4 HDBaseT Splitter
User Manual

VLHDBSP1X4V2 1×4 HDBaseT Splitter

All Rights Reserved
Version: VLHDBSP1X4V2_2022V1.0

Preface
Read this user manual carefully before using the product. Pictures shown in this manual are for reference only. Different models and specifications are subject to real product. This manual is only for operation instruction, please contact  the local distributor for maintenance assistance. The functions described in this version were updated till January, 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.

SAFETY PRECAUTIONS

To ensure the best performance 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.

Product Introduction

Thanks for choosing this1x4 HDBaseT Splitter! This device accepts a single HDMI input and splits it into one HDMI and four HDBaseT outputs. The splitter is designed with an IR loop out and loop in which are intended to cascade to additional units. It supports video resolutions up to 4K@60Hz 4:4:4 8bit and all HDMI audio formats. It can extend 1080p signals on each output to distance up to 229 feet (70 meters) and 4K signals to distance up to 131 feet (40 meters)  over a single CATx Ethernet cable. It supports the Power over HDBaseT (Pock) feature, which allows the HDBaseT receivers (Sold separately) to be powered from the splitter over the Ethernet cables. It supports bidirectional IR pass-through and IR, RS232 cascade control.

1.1 Features

• Support HDMI 2.0, video resolutions up to 4K@60Hz 4:4:4.
• Distribute one UHD/4K HDMI signal to four HDBaseT outputs and one loop HDMI output.
• Supports cascade connection, distribute video signal to multiple video displays.
• Maximum transmission distance is up to 40m for 4K, and 70m for 1080p.
• Supports video resolution down-scaling, 4K input can be automatically downgraded to 1080 output.
•  Supports audio de-embedding.
• Each HDBaseT output supports IR pass-through.
• Support RS232 and IR cascade control.
• Support 24V Pock, the HDBaseT receiver can be powered by HDBaseT splitter.

1.2 Package List

• 1x VLHDBSP1X4V2 1×4 HDBaseT Splitter
• 2x Mounting Ears with 4 Screws
• 4x Plastic Cushions
• 1x IR Cable (3.5mm to 3.5mm, used for IR cascade)
• 4x IR Receivers
• 1x IR Emitter
• 1x RS232 Cable (3-pin to 3-pin, used for RS232 cascade)
• 1x RS232 Cable (3-pin to DB9)
•  1x 5-pin terminal block
• 1x Power Adaptor (24V DC 5A)
• 1x User Manual

Note: Please contact your distributor immediately if any damage or defect in the components is found.

Technical Specification

2.1 HDBaseT Splitter

Video Input

Input| (1) HDMI
Input Connector| (1) Female type A HDMI
HDMI Input Resolution| Up to 4K@60Hz 4:4:4 8bit
Video Output
Output| (1) HDMI, (4) HDBT
Output Connector| (1) Female type A HDMI; (4) RJ45
HDMI Output Resolution| Up to 4K@60Hz 4:4:4
HDBT Output Resolution| Up to 4K@60Hz 4:4:4 (Signal has been compressed.)
SPDIF Audio Output
Audio Output| (1) SPDIF
Audio Output Connector| (1) To slink
Audio Format| LPCM 2ch, Dolby Digital 2ch, 5.1ch, 7.1ch, Dolby TrueHD 7.1ch, DTS 2ch, 5.1ch
Output Level| ±0.05dBFS
Frequency Response| 20Hz ~20kHz, ±1dB
THD+N| < 0.05%, 20Hz ~20kHz bandwidth, 1kHz sine at 0dBFS level (or max level)
SNR| > 90dB, 20Hz ~20kHz bandwidth
Crosstalk Isolation| > 70dB, 10kHz sine at 0dBFS level (or max level before clipping)
Noise| -90dB
Stereo Balanced L/R Audio Output
Audio Output| (1) Stereo balanced L/R audio
Audio Output Connector| (1) 5-pin terminal block
Audio Format| PCM
Frequency Response| 20Hz ~20kHz, ±1dB
Max output level| 2.0Vrms ± 0.5dB.
THD+N| < 0.05%, 20Hz ~20kHz bandwidth, 1kHz sine at 0dBFS level (or max level)
SNR| > 80dB, 20Hz ~20kHz bandwidth
Crosstalk Isolation| > 70 dB, 10kHz sine at 0dBFS level (or max level before clipping)
L-R Level Deviation| < 0.3 dB, 1kHz sine at 0dBFS level (or max level before clipping)
Output Load Capability| 1kohm and higher (supports 10x paralleled 10kohm loads)
Noise| – 80dB
Control
__ Control port| (1) EDID, (1) FIRMWARE, (1) ID PRESET, (1) IR ALL IN/LOOP IN,
(1) IR OUT, (4) IR IN, (1) IR LOOP OUT, (1) RS232 IN, (1) RS232 OUT,
---|---
Control Connector| (1) 4-pin DIP switch, (1) Micro-USB, (1) DIP switch, (7) 3.5mm mini jacks, (2) 3-pin terminal blocks
General
HDMI Standard| 2.0
HDCP Version| 2.2
Transmission Mode| HDBaseT
Transmission Distance| 1080p ≤ 229 feet (70 meters), 4K ≤ 131 feet (40 meters)
Operation Temperature| -10 ~ +55℃
Storage Temperature| -25~ +70℃
Relative Humidity| 10% ~ 90%
AC Adapter Input Power| 100V~240V AC, 50/60Hz
Input Power| 24V DC 5A
Power Consumption| 47W (Max)
Dimension (WHD)| 250mm x 44mm x 148mm
Net Weight| 1.16kg

Note: SPDIF audio output does not support DTS-HD Master Audio and Dolby TrueHD format.
2.2 Video Resolution Down-scaling
The product supports video resolution down-scaling, the 4K input can be automatically degraded to 1080p output for compatibility with 1080p display, shown in the below chart.
HDMI Output:

| Input| Output
---|---|---
#| Resolution| Refresh| Color Space| Downscale| 1080p Specs
1| 3840×2160| 60| 4:4:4| Support| 1080p@60Hz 4:4:4
2| 3840×2160| 30| 4:4:4| Support| 1080p@30Hz 4:4:4
3| 3840×2160| 24| 4:4:4| Support| 1080p@24Hz 4:4:4
4| 3840×2160| 60| 4:2:0| Support| 1080p@60Hz 4:4:4
5| 3840×2160| 60| 4:2:2| Support| 1080p@60Hz 4:4:4
6| 3840×2160| 30| 4:2:2| Support| 1080p@30Hz 4:4:4
7| 3840×2160| 24| 4:2:2| Support| 1080p@24Hz 4:4:4
8| 3840×2160| 60| RGB| Support| 1080p@60Hz RGB
9| 3840×2160| 30| RGB| Support| 1080p@30Hz RGB
10| 3840×2160| 24| RGB| Support| 1080p@24Hz RGB

HDBT Output:

| Input| Output
---|---|---
#| Resolution| Refresh| Color Space| Downscale| 1080p Specs
1| 3840×2160| 60| 4:4:4| Support| 1080p@60Hz 4:4:4
2| 3840×2160| 30| 4:4:4| Support| 1080p@30Hz 4:4:4
3| 3840×2160| 24| 4:4:4| Support| 1080p@24Hz 4:4:4
4| 3840×2160| 60| 4:2:0| Support| 1080p@60Hz 4:4:4
5| 3840×2160| 60| 4:2:2| Support| 1080p@60Hz 4:4:4
6| 3840×2160| 30| 4:2:2| Not Support| N/A
7| 3840×2160| 24| 4:2:2| Not Support| N/A
8| 3840×2160| 60| RGB| Support| 1080p@60Hz 4:4:4
9| 3840×2160| 30| RGB| Support| 1080p@30Hz RGB
10| 3840×2160| 24| RGB| Support| 1080p@24Hz RGB

Panel Description

3.1 Splitter Front Panel

1. POWER LED: Illuminates red when power is applied.
2. INPUT LED: Illuminates green when there is HDMI source input.
3. OUTPUT LEDs: The HDMI LED illuminates green when there is HDMI output. The HDBT 1~3 LEDs illuminate green when there is a valid HDBaseT link between the splitter and the receiver.
4. 4-pin DIP switch for EDID setting and HDCP mode selection.
5. FIRMWARE: Micro-USB port for firmware upgrade.

3.2 Splitter Rear Panel

1. HDMI INPUT: Connects to HDMI source device.

2. OUTPUTS:
   • HDMI: Connects to local HDMI display device.
   • HDBT 1~4: Connect to four HDBaseT receivers.
   • IR IN: Connect to four IR receivers to control far-end third-party devices by IR.

3. AUDIO OUT:
   • To slink audio output for audio de-embedding from HDMI output.
   • Balanced L/R audio output for audio de-embedding from HDMI output.

4. CONTROL:
   • IR ALL IN/LOOP IN: Connects to IR receiver to control far-end display device, or it can be connected to IR LOOP OUT of previous splitter.
   • IR OUT: Connects to IR emitter to control the local source device by IR.
   • IR LOOP OUT: Connects to IR ALL IN port of next splitter.
   • RS232 IN: Connects to control device (e.g. PC) to control the splitter or far-end third-party devices by RS232, or it can be connected to the RS232 OUT port of previous splitter.
   • RS232 OUT: Connects to the RS232 IN port of next splitter.
   • ID PRESET: Assigns a unique ID to each splitter when cascading multiple splitters. There are sixteen ID (0~9, A~F) can be set by using a small, flathead screwdriver. The new ID will take effect after device reboot.

5. DC 24V: DC connector for the power adapter connection.

System Connection

Cascade Connection:
The splitter supports cascade connection to distribute video signal to multiple video displays. Use the following connection diagram as a guide for cascading multiple units. Note that each unit must have a unique ID if using RS232 control.

IR Control

The IR receivers and emitters can be connected to the system to allow for IR control of remote devices. The bidirectional IR feature provides the two-way control either for the source or display device(s). Use the following sample connection diagrams to connect for IR remote control.
5.1 Controlling the Display Device by IR IN
The four IR IN ports of the splitter can receive IR signals from remotes to send to control displays. Connect four IR receiver to IR IN ports of the splitter, and then connect four IR emitters to IR OUT ports on HDBaseT receivers.

5.2 Controlling the Display Device by IR ALL IN
The IR ALL IN port of the splitter can receive all IR signals from remotes to send to control displays. Connect an IR receiver to IR ALL IN port of the splitter, and then connect four IR emitters to IR OUT port on HDBaseT receivers.

5.3 Controlling the Source Device
The IR OUT port of the splitter can send all IR signals to control source device.
Connect four IR receivers to IR IN ports on HDBaseT receivers, and then connect any emitter to IR OUT port of the splitter.

RS232 Control

The splitter and compatible receivers features RS232 ports to transmit RS232 signals from computer to control far-end third-party devices by using 3-pin to DB9 cable and a RS232 control software, such as dock light. After installing the  RS232 control software, please set the parameters of COM number, bound rate, data bit, stop bit and the parity bit correctly. Compatible receivers must be able to communicate at 2400, 4800, 9600, 19200, 38400, 57600, or 115200  baud. The splitter requires the following communication protocol parameters: Baud rate: 9600 (default)
Data bit: 8
Stop bit: 1
Parity bit: none

RS232 Commands
The end mark of below commands is “”.

5_GET_FIRMWARE_VER

SION

@5_V1.0.0
#param1FACTORY RESET| Restore to factory Default setting. param1=0~15. The splitter ID 0~9, A~F. param1=ALL. All splitters.|

5_FACTORY_RESET

@5_FACTORY_RESET
#param1_SET_RS232

_BAUD param2

| Set the baud rate of splitter. param1=0~15. The splitter ID 0~9, A~F. param1=ALL. All splitters.param1=ALL. param2=0~4. Baud rate.
0=9600
1=19200
2=38400
3=57600
4=115200| #5_SET_RS232_BAUD 0
@5_RS232_BAUD 9600
#param1_GET_RS232 _BAUD| Get the baud rate of splitter. param1=0~15. The splitter ID 0~9, A~F. param1=ALL. All splitters.| #5_GET_RS232_BAUD
@5_RS232_BAUD 9600
#param1_GET_STATE| Get system status.| #5_GET_STATE

1×4 HDBaseT Splitter

@5_V1.x.x @5_RS232_BAUD xxx @5_HDBT_PoC_x_ON/OF F
@5_SPDIF_ON/OFF
@5_I2S_ON/OFF @5_EDID:xxx
@5_HDCP:xxx
#param1_GET_DIP| Get EDID DIP switch status. param1=0~15. The splitter ID 0~9, A~F. param1=ALL. All splitters.| #5_GET_DIP
@5_EDID:xxx @5_HDCP:xxx
#param1_SETHDBT PoC param2 param3| Turn on/off PoC of HDBT output. param1=0~15. The splitter ID 0~9, A~F. param1=ALL. All splitters.
param2=1~4. HDBT output 1~4. param2=0. All HDBT outputs.
Param3=ON/OFF. PoC ON/OFF.| #5_SET_HDBT_PoC 1 ON
@5_HDBT_PoC_1_ON
#param1_GETHDBT PoC| Get PoC on-off status.| #5_GET_HDBT_PoC
@5_HDBT_PoC_1_ON
#param1_SET_SPDIF param2| Turn on/off SPDIF audio output. param1=0~15. The splitter ID 0~9, A~F. param1=ALL. All splitters. param2=ON/OFF.| #5_SET_SPDIF ON
@5_SPDIF_ON
#param1_GET_SPDIF| Get the on-off status of SPDIF audio output. param1=0~15. The splitter ID 0~9, A~F. param1=ALL. All splitters.|

5_GET_SPDIF

@5_SPDIF_ON
#param1_SET_I2S param2| Turn on/off balanced audio (L/R) output. param1=0~15. The splitter ID 0~9, A~F. param1=ALL. All splitters.
param2=ON/OFF.| #5_SET_I2S ON
@5_I2S_ON
#param1_GET_I2S| Get the on-off status of balanced audio (L/R) output.
param1=0~15. The splitter ID 0~9, A~F.
param1=ALL. All splitters.| #5_GET_I2S
@5_I2S_ON

The following commands do not require end mark.

the far-end third-party device which is connected to the RS232 port of HDBaseT receiver. param1=0~15. The splitter ID 0~9, A~F. param1=ALL. All splitters.
param2=1~4. HDBT output 1~4. param2=0. All HDBT outputs. param3=0~4. Baud rate.
0=9600
1=19200,
2=38400
3=57600
4=115200
param4=ASCII command.| #5_SET_A_1_0:ABC12345 67
…
#param1_SET_H_para m2_param3:param4| Send HEX command to control the far-end third-party device which is connected to the RS232 port of HDBaseT receiver. param1=0~15. The splitter ID 0~9, A~F. param1=ALL. All splitters.
param2=1~4. HDBT output 1~4. param2=0. All HDBT outputs. param3=0~4. Baud rate.
0=9600
1=19200,
2=38400
3=57600
4=115200
param4=HEX command.| #5_SET_H_1_0:11 22 33 44 55
…

DIP Switch Operation

7.1 EDID Management
The DIP switch on the front panel can be used to set the EDID to a fixed value to ensure the compatibility in video resolution.
The switch represents “0” when in the lower (OFF) position, and it represents “ 1” while putting the switch in the upper (ON) position. Switch 1~3 are used for EDID setting. The DIP switch status and its corresponding setting are shown at the back of the product.

connected to HDBaseT receiver starting at HDBT output 1>2>3>4 (Default).
001| Obtains the EDID from the first detected display device which is connected to HDBaseT receiver starting at HDBT output 4>3>2>1.
010| 1080p LPCM
011| 1080p DTS/Dolby
100| 3840×2160@30Hz HDR LPCM
101| 3840×2160@30Hz HDR DTS/Dolby
110| 3840×2160@60Hz HDR LPCM
111| 3840×2160@60Hz HDR DTS/Dolby

7.2 HDCP Mode
Put switch 4 on “ON” position to select HDCP Active mode, or to “OFF” for HDCP Passive mode.

source device.
ON (1)| Active| • If the input video has HDCP content, the HDCP version of HDMI output is HDCP 1.4 for broader video solution.
• If the input video has no HDCP content, the HDMI output has no HDCP either.

Firmware Upgrade

Please follow the below steps to upgrade firmware by the Micro-USB port:

1. Prepare the latest upgrade file (.bin) and rename it as “FW_MERG.bin” on PC.
2. Power off the splitter and connect the Micro-USB (FIRMWARE) port of splitter to the PC with USB cable.
3. Power on the splitter, and then the PC will automatically detect a U-disk named of “BOOTDISK”.
4. Double-click to open the U-disk, a file named of “READY.TXT” will be showed.
5. Directly copy the latest upgrade file (.bin) to the “BOOTDISK” U-disk.
6. Reopen the U-disk to check whether there is a filename “SUCCESS.TXT”, if yes, the firmware was updated successfully, otherwise, the firmware updating is fail, the name of upgrade file (.bin) should be confirmed again, and then  follow the above steps to update again.
7. Remove the USB cable and reboot the splitter after firmware upgrade.

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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