X2UH-KVM-ED Overview and Use Cases

What Is the X2UH-KVM-ED?

The ToVi X2UH-KVM-ED is a 4K AV over IP Transceiver with KVM support. It is part of the X2 Series and can be configured as either an Encoder or Decoder depending on the installation.

The X2UH-KVM-ED supports HDMI 2.0b, HDCP 2.2, H.264 / H.265 video compression, and video resolutions up to 4K@60Hz 4:4:4 with 18Gbps bandwidth. It distributes HDMI video, audio, USB/KVM, RS-232, and control signals over a 1G network.

The unit supports both RJ45 network transmission and SFP fiber transmission. It can transmit audio/video signals up to 328ft / 100m over network cable.

The X2UH-KVM-ED supports KVM seat management, multi-window display, video wall creation, matrix switching, multicast, HDMI loop out, audio embedding and de-embedding, scrolling text, character overlay, user rights management, PoE, mobile app control, and control through the X2UH-CB Control Box.

The X2UH-KVM-ED is useful for control rooms, command centers, security monitoring, digital signage, video walls, classrooms, conference rooms, enterprise AV systems, and installations where 4K HDMI, KVM, and flexible display management are required over an IP network.

IMPORTANT — X2UH-KVM-ED Is a Transceiver

The X2UH-KVM-ED is not only an Encoder or only a Decoder. It is a dual-function Transceiver.

The same hardware can be configured as either a transmitter/encoder or receiver/decoder depending on the application.

This simplifies inventory management, installation, and system maintenance.

IMPORTANT — Supports 4K@60Hz 4:4:4

The X2UH-KVM-ED supports true 4K video.

To get 4K@60Hz 4:4:4, the HDMI source, display, HDMI cables, network switch, network cable, and system configuration must all support the required signal.

IMPORTANT — Supports KVM Seat Management

The X2UH-KVM-ED supports KVM functionality for PC and workstation control.

KVM seat management allows operators to control one or multiple PCs using a keyboard and mouse from a user station.

The manual also describes “man-machine separation,” where PCs can be kept in a secure central server room while operators access them remotely in real time.

IMPORTANT — Each Decoder Can Handle up to 16 Signals

When used in Decoder mode, each screen can display up to 16 input signals.

This is useful for control rooms, command centers, surveillance monitoring, and multi-source operator workstations.

IMPORTANT — Video Wall up to 50x50 Is Supported

The X2UH-KVM-ED supports large video wall systems.

The system supports advanced splicing and flexible display layouts for LCD video walls, fine-pitch LED panels, and other display technologies.

IMPORTANT — AV over IP Uses a 1G Network

The X2UH-KVM-ED distributes signals over a Gigabit network.

The manual notes that each Encoder uses almost 300Mbps of bandwidth. When cascading switches or using many Encoders, the network must provide enough total bandwidth.

IMPORTANT — Supports RJ45 and SFP Fiber Transmission

The X2UH-KVM-ED includes both RJ45 LAN and SFP fiber options.

This allows flexible system design using either copper network cable or fiber network infrastructure.

IMPORTANT — PoE and DC Power Are Supported

The X2UH-KVM-ED can be powered by PoE or by the included power adapter.

If the LAN port is connected to a PoE switch, the power adapter is not required.

If both the LAN PoE connection and power adapter are connected, the device will take power from the power adapter.

IMPORTANT — HDMI Loop-Out Is Supported

The X2UH-KVM-ED includes HDMI input and output ports.

The HDMI loop-out feature allows signal cascading or connection to a local monitoring display.

IMPORTANT — Audio Embedding and De-Embedding Are Supported

The X2UH-KVM-ED supports HDMI audio and analog stereo audio.

This allows flexible audio integration and extraction for AV installations.

IMPORTANT — H.264 / H.265 IP Camera Integration Is Supported

The X2UH-KVM-ED supports H.264 and H.265 protocols.

The manual describes integration with surveillance systems and direct access to compatible IP cameras for display on video walls.

IMPORTANT — Scrolling Text and Character Overlay Are Supported

The X2UH-KVM-ED supports visual overlay features.

These features are useful for alerts, labels, emergency messages, control room identification, and digital signage.

IMPORTANT — User Rights Management Is Supported

The X2UH-KVM-ED system supports multi-level user rights management.

User rights can be assigned systematically so different operators only access the inputs, outputs, PCs, or control functions they are allowed to use.

IMPORTANT — X2UH-CB Control Box Is Supported

The X2UH-KVM-ED can be controlled with the X2UH-CB Control Box.

The X2UH-CB is recommended for larger systems, video walls, KVM seat management, and centralized control.

Ports and Panel Layout

Front Panel

Rear Panel

Step-by-Step Setup

1. Decide whether the unit will be used in Encoder mode or Decoder mode.
2. For Encoder mode, connect the HDMI source device to the IN port.
3. For local monitoring or loop-out, connect a display to the OUT port.
4. Connect the LAN / PoE port to a suitable 1G PoE network switch using network cable.
5. If using fiber network infrastructure, connect the SFP port to the fiber port on the network switch.
6. For Decoder mode, connect the display to the OUT port.
7. For KVM control, connect the USB HOST port to the PC or laptop being controlled.
8. Connect USB keyboard, mouse, or compatible peripherals to the USB DEVICE ports as needed.
9. If using analog audio embedding, connect the analog audio source to AUDIO IN.
10. If using audio extraction, connect the audio output device to AUDIO OUT.
11. If using RS-232 control, connect the RS-232 Phoenix connector to the PC, laptop, or control system.
12. Power the unit through PoE or the included DC 12V/2.5A power adapter.
13. Check the OLED display for device name and IP address.
14. Confirm the ENC or DEC LED shows the selected operating mode.
15. Confirm the LINK LED flashes when the network connection is normal.
16. Use the X2UH-CB Control Box, KVM interface, mobile app, or supported control system to configure routing, video wall, KVM seat management, user rights, and display layouts.
17. Test video, audio, KVM, RS-232, matrix switching, and video wall behavior.

Network Cable Requirement — Critical

Use high-quality network cabling for stable AV over IP performance.

Poor network cabling or weak switch performance may cause:

• No video
• Network dropouts
• Signal freezing
• Pixelation
• KVM control issues
• Audio dropouts
• Video wall synchronization issues
• Unstable matrix switching
• Device not appearing online
• PoE power failure

Use properly terminated network cable and suitable switch infrastructure.

HDMI Cable Requirement — Critical

Use high-quality HDMI cables, especially for 4K@60Hz 4:4:4.

Poor HDMI cables may cause:

• No image
• Flickering
• Black screen
• 4K@60Hz failure
• HDCP handshake issues
• Audio dropouts
• Source not detected
• Display not detected
• HDMI loop-out issues

For troubleshooting, test the HDMI source directly with the display before using the AV over IP system.

USB / KVM Requirement — Critical

For KVM control, the USB connection must be set up correctly.

If KVM does not work:

• Confirm the USB HOST port is connected to the correct computer
• Confirm the keyboard and mouse are connected to the correct USB DEVICE ports
• Confirm the unit is assigned correctly in the KVM seat management system
• Confirm the Encoder and Decoder routing is correct
• Test with a basic wired keyboard and mouse
• Check network connection and device status

Power Requirement — Critical

The X2UH-KVM-ED can be powered by PoE or DC power.

If the unit does not power on, check the PoE switch, LAN cable, power adapter, outlet, and DC 12V port.

Surge protection is recommended.

Understanding the Application Example

The application diagram shows multiple X2UH-KVM-ED units being used as Encoders and Decoders.

On the input side, sources such as a laptop, desktop computer, TV box, media player, Blu-ray player, and IPC camera connect to Transceivers in Encoder mode.

On the output side, Transceivers in Decoder mode connect to a video wall, multi-view display, TVs, and a KVM seat management station.

The diagram also shows a control server, router, mobile phone, iPad control, control system, HDMI cables, USB cables, and network cables.

This shows the main use case: a centralized AV over IP and KVM system where sources, displays, video walls, operators, and control devices are managed across the network.

Understanding LED Indicators

Use the OLED display and LED indicators first when troubleshooting mode, IP address, network speed, power, and system status.

Supported Technical Specifications

What Source Devices Is the X2UH-KVM-ED Compatible With?

When used in Encoder mode, the X2UH-KVM-ED can connect to HDMI source devices such as:

• Desktop computers
• Laptops
• Workstations
• Servers
• TV boxes
• Media players
• Blu-ray players
• Streaming devices
• DVRs
• NVRs
• IP cameras through compatible H.264 / H.265 integration
• HDMI matrix outputs
• HDMI switch outputs
• AV receivers with HDMI output

The source must output a supported HDMI resolution up to 4K@60Hz 4:4:4.

What Displays Is the X2UH-KVM-ED Compatible With?

When used in Decoder mode, the X2UH-KVM-ED can connect to displays such as:

• 4K TVs
• 1080p TVs
• Monitors
• Projectors
• LCD video wall displays
• Fine-pitch LED displays
• Commercial displays
• Digital signage displays
• Control room displays
• Command center displays
• Multi-view operator displays

The display must support the selected Decoder output resolution.

What Network Equipment Is Compatible?

The X2UH-KVM-ED can work with common two-layer switches from brands such as:

• NETGEAR
• Cisco
• Huawei
• H3C
• TP-Link
• ToVi network switches

For larger systems, use switches with sufficient bandwidth and 10G uplinks when cascading.

Frequently Asked Questions

Q: What is the X2UH-KVM-ED used for? 
A: It is used for 4K AV over IP distribution with KVM, matrix switching, video wall control, multi-window display, audio routing, RS-232, and user rights management.

Q: Is the X2UH-KVM-ED an Encoder or Decoder? 
A: It is a Transceiver. It can be configured as either an Encoder or a Decoder.

Q: Does it support 4K@60Hz? 
A: Yes. It supports up to 4K@60Hz 4:4:4.

Q: What HDMI version does it support? 
A: It supports HDMI 2.0b.

Q: What HDCP version does it support? 
A: It supports HDCP 2.2.

Q: What video compression does it use? 
A: It supports H.264 and H.265 video compression.

Q: What is the video bandwidth? 
A: It supports 18Gbps bandwidth.

Q: Does it support KVM? 
A: Yes. It supports KVM seat management for one-to-one and one-to-many PC control.

Q: Can one operator control multiple PCs? 
A: Yes. The system supports multi-device control, allowing one operator to control multiple PCs with one keyboard and mouse.

Q: Can one PC output to multiple screens? 
A: Yes. A single PC can output to multiple screens for extended or spliced display applications.

Q: Does it support video walls? 
A: Yes. It supports video walls up to 50x50.

Q: How many windows can each screen display? 
A: Each screen can display up to 16 input signals.

Q: Does it support 1, 4, 9, and 16-window display layouts? 
A: Yes. Multi-view display supports 1, 4, 9, and 16-window layouts.

Q: Does it support scrolling text or subtitles? 
A: Yes. It supports scrolling subtitles, character overlays, banners, logos, and LED bar screen display.

Q: Does it support IP camera integration? 
A: Yes. It supports H.264 / H.265 IPC and camera integration, including compatible Hikvision, Dahua, and Yushi cameras.

Q: Does it support PTZ camera control? 
A: Yes. PTZ camera control is listed in the manual.

Q: Does it support HDMI loop out? 
A: Yes. HDMI loop-out is supported for local monitoring or signal cascading.

Q: Does it support audio embedding and de-embedding? 
A: Yes. It supports audio embedding and audio de-embedding through HDMI and analog audio connections.

Q: What audio format does it support? 
A: It supports LPCM 2.0CH, 16-bit, 48kHz HDMI audio and left/right stereo analog audio.

Q: Does it support Dolby or DTS audio? 
A: Dolby and DTS formats are not listed in the manual.

Q: Does it support RS-232? 
A: Yes. RS-232 command control and relay control are supported.

Q: Does it support PoE? 
A: Yes. It supports standard PoE 802.3af Class 3.

Q: What power adapter does it use? 
A: It uses a DC 12V/2.5A power adapter.

Q: Do I need the power adapter if using PoE? 
A: No. If the LAN port is connected to a PoE switch, the power adapter is not required.

Q: What happens if both PoE and the power adapter are connected? 
A: The device will take power from the power adapter.

Q: What is the maximum network cable distance? 
A: Up to 328ft / 100m.

Q: Does it support fiber? 
A: Yes. It includes an SFP port for fiber network transmission.

Q: How many Encoders and Decoders can be connected to one network? 
A: The manual lists up to 1000 Encoders, 500 IPC, and 1000 Decoders.

Q: Can I cascade network switches? 
A: Yes. Switch cascading with 10G is supported.

Q: How much bandwidth does each Encoder use? 
A: The manual states each Encoder uses almost 300Mbps.

Q: What network switches can be used? 
A: Common two-layer switches such as NETGEAR, Cisco, Huawei, H3C, and TP-Link are listed.

Q: What does the ENC LED mean? 
A: It lights when the device is in Encoder mode.

Q: What does the DEC LED mean? 
A: It lights when the device is in Decoder mode.

Q: What does the LINK LED mean? 
A: It flashes when the network connection is normal.

Q: What does the 100M / 1000M LED mean? 
A: Yellow means 100M connection, and green means 1000M connection.

Q: What does the READY LED mean? 
A: Green means the system is running normally or in standby. Flashing at 1Hz indicates a system fault.

Q: What does the OLED display show? 
A: It shows the device name and IP address after the device turns on. The screen turns off after 90 seconds.

Q: How do I reset the device? 
A: Hold RESET for 5 seconds to reboot and restore factory default settings. Hold RESET for 15 seconds to restore the software to the factory default version.

Q: What should I do if there is no video? 
A: Check the HDMI source, HDMI cables, network cable, PoE or power adapter, Encoder / Decoder mode, network switch, routing configuration, and display input.

Q: What should I do if KVM does not work? 
A: Check the USB HOST connection to the computer, USB DEVICE connection to the keyboard/mouse, KVM seat assignment, network status, and device mode.

Q: What should I do if the video wall does not display correctly? 
A: Check the Decoder assignments, video wall layout, network bandwidth, switch configuration, device mode, display settings, and control server configuration.

Q: Does the X2UH-KVM-ED need external power? 
A: It can be powered through PoE or by the included DC 12V/2.5A power adapter.