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724-746-5500    |    blackbox.com

724-746-5500    |    blackbox.com

724-746-5500    |    blackbox.com

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© Copyright 2014. Black Box Corporation. All rights reserved.  
Black Box and the Double Diamond logo are registered trademarks of 
BB Technologies, Inc. Intel is a trademark of Intel Corporation in the U.S. 
and/or other countries. 

Any other trademarks mentioned in this manual 

are acknowledged to be the property of the trademark owners.

BLACK BOX

®

Distribute HDMI audio and 

video out to two displays.

1 x 2 HDMI Splitter 4K

VSP-HDMI1X2-4K

HDMI Splitter 4K User’s Manual

Audio Auto Mixing: Automatically perform the minimum audio  
format of all attached displays.

Video Inventory: After copying Video EDID, use the copied Video 
EDID.

Audio Inventory: After copying Audio EDID, use the copied Audio 
EDID.

3.2.2 EDID Copy

Before starting, slide the Audio/Video EDID setting switch to  
position 2, 3, or 4.

Step 1

. Connect the monitor (EDID compliant) to the video output 

Port 1 on the splitter and power on the monitor.

Step 2

. Press the “EDID COPY” button, then release it RIGHT 

AFTER the LED flashes GREEN and RED (about 3 seconds).

Step 3

. The LED returns to normal status indicating that EDID copy 

is completed.

Otherwise, if the Status LED flashes RED, it means that:

a. The monitor is not properly connected.

b. The monitor is not powered on.

c. EDID data of the monitor is not applicable.

3.2.3 EDID Factory Default Setting

T

o set the EDID copy to factory default:

Step 2

. Press the “EDID COPY” button, then release it RIGHT 

AFTER the LED flashes GREEN twice (about 9 seconds).

Step 3

. The LED returns to normal status indicating that

 

EDID copy 

is completed.

4. Operation

The quality of the output signal depends on the quality of video 
source, cable, and display device used. Low-quality cables degrade 
output signals causing elevated noise levels. Use the proper cable 
and make sure the display device can handle the resolution and 
refresh rate selected. Interference from nearby electrical devices can 
adversely affect signal quality.

Table 4-1. LED indicator functions.

LEDs 1 and 2 Status

Flashing green Power ON to Port 1 or 2
Steady green

Port 1 or 2 is outputting the data

vsp-hdmi1x2-4k_ds_rev1

1. Specifications

Enclosure

Metal

TMDS Clock 
Rate

300 MHz

Video 
Resolution 
(Maximum)

4K x 2K (3840x 2160)

User Controls

(1) EDID Copy button

Connectors

Input: (1) HDMI female, 
Output: (2) HDMI female

Indicators

(2) Output Status LEDs

Power

Consumption: 
   9–12 VDC, 220 mA

Dimensions

0.8"H x 6.1"W x 2.6"D  
(2 x 15.6 x 6.5 cm)

Weight

0.627 lb. (0.285 kg)

NOTE:  The splitter is not 4K compatible when using 

Intel

®

 HD 4400 based services.

5. Troubleshooting

Symptom

: Video does not display

Possible Cause

: Wrong installation process. 

Solution

: The video splitter requires at least one monitor  

connection before powering on the source device.

Symptom

: Erratic behavior

Possible Cause

: Splitter may not receive enough power.

Solution

: Check the power adapter attached to the splitter to 

make sure it matches the system specifications, and is functioning 
properly.

Symptom

: Not receiving picture or sound.

Possible Cause

: The signal source may require a display device that 

is HDCP compliant.

Solution

: Check if the display monitor is HDCP compliant. HDCP 

prevents the transfer of digital content to unauthorized HDMI 
devices.

Symptom

: The display monitor is added to the unit by hot-plug, 

but the video source may not support hot-plug.

Possible Cause

: Check if the video source supports hot-plug. If it 

doesn’t, shut down the source device and reboot it again. The 
attached devices are not connected properly.

Solution

: Check if you connected your components correctly.

HDMI Splitter 4K User’s Manual

Disclaimer:

Black Box Network Services shall not be liable for damages of any 
kind, including, but not limited to, punitive, consequential or cost 
of cover damages, resulting from any errors in the product  
information or specifications set forth in this document and  
Black Box Network Services may revise this document at any time  
without notice.

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