Key Digital KD-VW4x4ProK Manuel utilisateur

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Jul, 2022

4K UHD 4 input 4 output video wall processor and seamless

matrix switcher, includes 4 Rx units. Features 5 video wall

modes, independent AV routing, mirrored HDMI and

UHDoTP outputs.

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com 
Rev 1.0 –Jul, 2022 
 
 
2 
Table of Contents
About KD-VW4X4PROK 3 
Quick Setup Guide 5 
Connect 5 
Configure 5 
Control 7 
Application Example 11 
KD-VW4x4ProK Connections and LEDs 11 
KD-EXMLVRx Connections and LEDs 11 
Front Panel Control & LCD 17 
IR Remote Control 18 
Web User Interface 19 
Video Wall Modes 21 
Panel Flip 24 
Bezel Control 25 
Text Overlay 26 
TCP/IP and RS-232 Commands 27 
Integrating with AV over IP Systems 32 
Specifications 33 
Warranty Information 34 
Product Warnings & Safety Instructions 34 
 

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Jul, 2022

About KD-VW4x4ProK

Key Digital’s KD-VW4x4ProK is a 4 HDMI input with 4 HDMI + 4 UHDoTP mirrored output video wall processor

and seamless matrix switcher with independent audio routing.

KD-VW4x4ProK is perfect for video wall and large format viewing applications like Bar & Restaurant, Sports &

Gaming Caves, Digital Signage, House of Worship, Entertainment Centers, Museums, E-Sports, and more.

KD-VW4x4ProK has been specially engineered to cost-effectively create video walls with consumer panels and

monitors. The Panel Flip feature rotates the image 180 degrees on the desired outputs, enabling the top row of

monitors to be installed upside down, conjoining the narrow frame sides of the displays. Bezel Compensation

allows the image to be extended off the screen to create fluid screen transition and five supported video wall

layouts (2x2, 4x1, 3x1, 2 mirrored sets of 2x1, and 1x4) make KD-VW4x4ProK the ideal choice to build video

walls in any application and price point.

Mirrored HDMI and CAT6 AV outputs enable up to eight connected displays via the four included Rx units- Ideal

for dual video walls showing the same thing at the same time.

Alternatively, KD-VW4x4ProK may be used as a 4x4 video matrix so users may view their four connected video

sources on their four/eight connected displays. Source selection in video wall or matrix modes is completely

seamless and 4K down-conversion features enable integration with legacy 720p and 1080p displays for further

savings by the end-user.

4K / UHD content up to 3840 x 2160p 4:2:0 at 60fps is supported, as well as independent audio routing with de-

embedding on analog balanced/un-balanced and digital optical connections and surround formats up to 5.1

Dolby® / DTS™. Audio from any source may be selected while in video wall mode.

KD-VW4x4ProK joins a suite of Key Digital IP enabled products that are Web UI and iOS app ready. The

engineers at Key Digital have created an easy way for installers and users to switch inputs and control Key

Digital systems as if you were standing in front of the unit - all from the PC or portable device. IR from a control

system may be input at KD-MLV4x4Pro and extended to control the displays connected to the KD-EXMLVRx

units.

Key Features

•Video Wall Processing: Transform consumer and professional displays into a video wall with five video

wall modes: 2x2, 4x1, 3x1, 2 sets of 2x1, 1x4

•Seamless Switching: Un-interrupted screen transitions during source selection

•Built-In UHDoTP Tx with PoC: 4 included KD-EXMLVRx units are powered by KD-VW4x4ProK

•Dual Video Wall / Mirrored Outputs: Simultaneously active HDMI + UHDoTP mirrored connections per

output show same AV signal at same time for a total of 8 possible displays connected

•Independent Audio Matrix: Audio output ports may be routed separately from HDMI & UHDoTP ports.

Audio from any source may be selected while in video wall mode.

•Panel Flip: Enables use of consumer displays by mounting top row upside down and conjoining narrow

frame side.

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Jul, 2022

•Bezel Compensation: Create a fluid screen transition by removing pixels from top, bottom, left, and

right border independently

•Video Resolution: Up to 3840 x 2160p 4:2:0 at 60fps supported on inputs & 3840 x 2160p 4:4:4 at

30fps supported on outputs

•Signal Extension over CAT:

o4K/UHD: Up to 35m (115ft) using CAT5e/6, up to 40m (131ft) using CAT6A STP

o1080p: Up to 50m (164ft) using CAT5e/6, up to 60m (197ft) using CAT6A STP

oMinimum: 5m (17ft) CAT5e/6 cable length required for all resolutions

•Text Overlay: Assigned name of each output may be displayed in each window. 16 Characters

maximum with variable sizing and location settings.

•4K Down-Convert: Integrate 4K sources with legacy 1080p & 720p displays

•HDCP 2.2 Licensing: Fully licensed and compatible with HDCP 2.2

•Built-In Test Patterns: 9 selectable test screens help expedite installation

•IR Two-Way: Extend IR via Rx units to control displays or collect IR from remote to control a source at

head-end

•Web UI: Control AV routing and other basic functions from any web browser

•Audio De-Embed: 6 pin balanced / un-balanced and digital optical outputs

•Dolby Digital® & DTS™ Audio: Supports 2-channel and multi-channel surround formats up to 5.1

Dolby® / DTS™

•Full Buffer System™: Manages TMDS re-clocking / signal re-generation, HDCP authentication to

source & display, and EDID handshake to source

•EDID Management: Internal library with 8 EDID AV handshakes per input, in addition to ability to copy

from any connected display / output

•TMDS Re-clocking: Supports long HDMI connectivity using Key Digital® HDMI cables

•Deep Color Support: Up to 8 bits/color

•Control: Front panel buttons, IR, RS-232, TCP-IP and Web Control

•Key Digital® App Ready: Can be controlled over TCP/IP via Key Digital® App

•Control System Support: Key Digital® app ready. Key Digital Management Software™ Pro (KDMS™

Pro) ready, Compass Control® Pro ready. Fully controllable by all IR, RS-232, and TCP/IP supported

control systems via open API.

Accessories

•(1) Power supply, 12V 5A screw-type,

model KDPS60W12VC

•(1) IR Remote Control, model

KDRMVW44K

•(4) UHDoTP Rx units, model KD-EXMLVRx

•(4) IR Emitters with 3.5mm mono end. 6ft.

•(4) IR Sensors with 3.5mm 4 conductor

end. 6ft.

•(4) 6-pin Phoenix connector for audio, blue

•(1) 6-pin Phoenix connector for unit control

•(1) USB data cable, Micro to A, 6ft, USB 2.0

•(2) Rack ears

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Jul, 2022

Quick Setup Guide

Begin with the KD-VW4x4ProK and KD-EXMLVRx units, all source, display devices, audio system, and

any other connected peripherals powered off.

Connect

1. Connect video sources into the HDMI input ports

2. Connect video displays to the HDMI output ports on the main and/or Rx units

3. Connect CAT6 cabling from the main unit’s UHDoTP outputs to the RX unit’s UHDoTP input

4. Connect audio using the digital or analog outputs ports located on the main unit.

5. Connect Control System. For KD-App control and/or IP control from a control system or PC, connect

TCP/IP port to network. RS-232 and IR control may also be utilized

6. (Optional) Connect IR to / from Rx units

a. If controlling displays: Connect from control system into IR In/Out ports of main unit and

connect IR emitter to the IR Out port of the respective Rx unit (1→1 … 4→4).

b. If controlling video source: Connect IR sensor to Rx unit to collect line-of-site IR from a

remote. Connect IR emitter to the respective IR In/Out port of main unit (1→1 … 4→4).

7. Connect power. Screw-in power supply to the KD-VW4x4ProK unit, and then connect power to outlets.

8. Power on sources, displays, and audio systems to begin use.

Configure

Configure KD-VW4x4ProK with Key Digital Management Software Pro (KDMS Pro). Download HERE

1. Connect to KD-VW4x4ProK from your PC using the USB micro port on the face of the unit

2. Open the KDMS Pro software and perform a USB scan (2a). Choose “NO” and Start Scan when the

USB Device Scan prompt appears (2b)

3. Choose the detected device from the Devices window (fig. 3)

4. Enter the desired unit name (4a), IP address (4b) and IP gateway (4c) settings for the unit

5. Save (5)

6. Select the desired EDID handshake for each video source (6)

7. Enter the desired Input and Output names and press Update Names

8. (Optional) Use the Output Settings section to set the video output format for 4K to 1080p down-convert,

establish IR signal flow (default is IR In on the KD-VW4x4Pro4K and IR out on the Rx units to control),

and to choose a test pattern for outputting on your display if desired.

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Jul, 2022

9. Your unit is now ready to control from the web UI, KDMS Pro control panel, KD-App, or by professional

control system. Full access to all settings/commands is achieved via terminal session using Tera Term

or PuTTy software.

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Jul, 2022

Control

Option 1: Control via Remote Control

Refer to IR Remote Control section for complete control options via IR

•To enable video wall in desired mode (see below guide)

1. VW Mode button (section E)

2. VW Layout button 1-5 (section D)

Note: Source 1 is the default video wall source

•To select video wall source:

1. VW button (section A)

2. Input button (section C)

•To set Matrix mode:

1. Matrix button (section E)

Note: Source 1 is the default source for all outputs

•To matrix HDMI AV + External Audio:

1. A/V button (section A)

2. Output button (section B)

3. Input button (section C)

Note: When selecting a new source for while Video Wall mode,

only audio de-embed port #1 routes to the video wall source to

provide an audio zone synched with the video wall while

enabling the other three audio zones to be used for other

purposes.

•To matrix HDMI AV only:

1. HDMI button (section A)

2. Output button (section B)

3. Input button (section C)

•External Audio Source Selection:

1. Audio button (section A)

2. Output button (section B)

3. Input button (section C)

Note: this may be used while in Video Wall or Matrix modes

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Jul, 2022

Option 2: Control via KD-App, KDMS Pro™

KD-VW4x4ProK is controllable by Key Digital’s user-friendly iOS App

(downloadable in the App Store) or Key Digital® Management Software™ Pro

(downloadable here) for PC.

1. Connect and configure your KD-VW4x4ProK as described in the Connect &

Configure sections

2. Download and open KD-App and/or KDMS™

3. Ensure the iOS device and/or PC computer are on the same network with

KD-VW4x4ProK

4. Perform a network scan in the KD-App/KDMS™

5. Select and control the selected KD-VW4x4ProK

6. To enter KDMS Pro end-user mode, key CTRL + ALT + N after selecting

the unit in the devices tree.

Note: When selecting a video wall source while in the Video & Audio tab, the audio from the video wall source

is routed on external audio output 1

Control UI layouts. The assigned device, source, and display names show for a user-friendly layout.

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Jul, 2022

Option 3: Control via web UI

Access KD-VW4x4ProK’s web UI from any phone, tablet, or

PC. The web UI shows the input, output, and unit name, for a

user-friendly experience.

1. Connect and configure your KD-VW4x4ProK as

described in the Connect & Configure sections

2. Ensure the PC, phone, or tablet are on the network

with KD-VW4x4ProK

3. Enter IP Address of KD-VW4x4ProK unit into the web

browser search bar

4. Enter the password. Default password is “admin”

5. Use the web UI to choose video wall layout (5a) and

video wall source selection (5b) or select the source for each HDMI (5c) and/or external audio output

independently (5d).

Note: When selecting a video wall source while in the Video & Audio tab, the audio from the video wall source

is routed on external audio output 1

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Jul, 2022

Option 4: Control via professional control system

KD-VW4x4ProK allows control over serial interface for bi-directional communication.

•For RS-232 control use pins 4, 5, and

6 of the Unit Control port. Baud Rate is

57,600

•For TCP/IP control the default static IP

address is 192.168.1.239, with port 23.

•KD-VW4x4ProK supports KD’s standard matrixing protocol, so if you have controlled a KD matrix with a

third-party control system before, you will likely have success with the same driver/module.

a. Video Wall / Matrix Switching HDMI AV + External Audio together

i. SPOxxSIyy xx = output (01 if in video wall mode, or 01-04 in matrix mode),

yy = input (01-04)

Note: When selecting a new source for while Video Wall mode, only audio de-embed port #1 routes to

the video wall source to provide an audio zone synched with the video wall while enabling the other

three audio zones to be used for other purposes.

b. Video Wall / Matrix Switching HDMI AV Only

i. SPOxxSByy xx = output (01 if in video wall mode, 01-04 in matrix mode)

yy = input (01-04)

c. Matrix Switching External Audio only

i. SPOxxSAyy xx = output (01-04), yy = input (01-04)

Note: this may be used while in Video Wall or Matrix mode

d. Video Wall / Matrix mode select

i. SPOOMx x = 0 (matrix), 1 (2x2 VW), 2 (1Hx4V VW), 3 (4Hx1V VW),

4 (3Hx1V), 5 (2 mirrored sets of 2Hx1V VWs)

•A carriage return is required at the end of each string. See the TCP/IP and RS-232 Commands section

for full command set and protocol.

Test for proper operation of the unit and cables in your system before permanently securing the

unit for final installation. Ensure that you leave enough ventilation space to provide sufficient

airflow and cooling

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