Kinan MH2404 MultiViewer KVM Switch User Manual

Printing date: 2025/07 | Version: V2.4

User Information

Telephone Support

For telephone support, please call:

Telephone (Tel)	$0086-755-26755041$
Mobile phone (Mob)	$0086-13714411566$

User Notice

All information, documents, and specifications in this manual are subject to change without notice. Kinan Technology Co., Ltd. makes no express or implied warranty regarding the contents of this document, including merchantability or fitness for any particular purpose. Equipment described herein is sold or licensed as is.

The buyer is responsible for all repair costs and any incidental or consequential damages resulting from equipment defects if the equipment is artificially damaged after purchase. Kinan Technology Co., Ltd. is not responsible for any damage incurred if the correct operating voltage setting was not selected before operation. Ensure the voltage setting is correct before use.

Overview

The MH2404 is a 4-port multiviewer KVM switch with a USB 2.0 Hub. It allows users to monitor multiple computer sources from a single monitor, keyboard, and mouse. Users can directly switch and control servers displayed on the screen via the keyboard, instantly updating the image and improving work efficiency for real-time monitoring.

The MH2404 supports high-quality video resolutions up to 4K (3840 x 2160 @ 60 Hz) and offers Quad-View and Full-Screen modes. In Quad-View mode, users can switch to another source by simply moving the mouse to that screen.

The MH2404 supports cascading and daisy-chain modes. In cascading mode, users can manage up to 16 servers, with their images displayed simultaneously in a 4x4 multi-view mode on the Master device.

The MH2404 is designed for simplicity and speed, working upon cable connection. It obtains keyboard and mouse signals directly, requiring no software installation and avoiding complex compatibility issues. Its rich and diversified functions make it ideal for applications requiring real-time monitoring, such as aviation, finance, gaming, and medical fields, enhancing work efficiency and reducing tedious operations.

Product Features

Manages 4 computers or servers from a single control terminal.
Supports seamless switching between 4 computers or servers.
Supports cascade mode and DCC (Daisy Chain Control) mode, managing up to 16 computers or servers.
Cascade Mode: Displays up to 4x4 multi-view simultaneously.
DCC Mode: Keyboard and mouse slide freely between ports and switch automatically.
HDMI 2.0 and HDCP compliant.
Supports Quad View and Full Screen display modes.
Resolution up to 4K (4096x2160@60Hz) in both Quad View and Full Screen modes (3840x2160@60Hz recommended).
EDID: Selects optimum EDID settings for high-quality display and best video resolution across different screens.
Cross-platform support: Windows, Linux, Mac, Unix.
Supports USB 2.0 HUB.
Compatible with wireless USB keyboards and mice from famous brands, and supports multimedia USB keyboards (PC, Mac, and Sun).
Complete keyboard and mouse signal simulation for correct boot switching.
Broadcast function: Operate multiple computers or servers simultaneously in multi-view mode.
Hot-pluggable: Add or remove computers or servers without switching off the power.
No software required: Easily select a computer or server via front-panel pushbuttons, keyboard hotkeys, and a professional numeric keyboard (optional).
In multi-view mode, the keyboard and mouse can slide freely between ports and switch automatically.
Switching modes suitable for each scene: Mouse sliding screen, Front-panel pushbuttons, Keyboard hotkey, Mouse hotkey.

Product Size

The product dimensions are 270mm x 166mm x 44mm.

Rear View

The rear panel includes:

1: Grounding terminal
2: HDMI input ports (IN 1-4)
3: Control terminal output port (OUT)
4: Power socket (DC 12V)
5: USB input ports (for computer connections)
6: Audio input jack (for computer audio)
7: Audio jack on Console port (for speakers)
8: USB ports on Console port (for keyboard and mouse)
9: Peripheral USB 2.0 port

Installation

To prevent damage from power surges or static electricity, ensure all connected devices are properly grounded. Turn off the power to all connected devices before installation. Unplug power cords of computers with the Keyboard Power On function.

Installation Diagram

Follow these steps for installation:

Connect the monitor, USB keyboard, and mouse to the output ports of the KVM switch.
Connect the HDMI signal cable, USB cable, and audio cable from each PC/Server to the corresponding KVM input ports.
Connect the power cord to the KVM power socket.
Turn on the power of the computers, then use the front-panel buttons or hotkeys to switch between modes and computers.
If using separate speakers, plug them into the control audio jack on the equipment. If the display has built-in speakers and supports audio through HDMI, a separate speaker is not needed.
Insert USB peripherals into the USB ports.

For optimal signal integrity and a simplified layout, high-quality customized cable sets are recommended and can be purchased from your dealer.

Cascading

To set up a cascade installation, ensure all devices are powered off. Then:

Connect the equipped USB cable and HDMI cable from the Master device's CONSOLE ports to Slave 1's HDMI and USB 2.0 ports.
Connect the Master and Slave 1 using an Ethernet cable to any RJ45 port of the RS485 interface.
Turn all DIP switches (1-5) on the Master unit to the UP position.
Connect Slave 2, Slave 3, and Slave 4 in the same manner as Slave 1.

Daisy Chain Installation Diagram

To set up a daisy-chain installation, ensure all devices are powered off. Then:

Device 1: Connect an Ethernet cable to any RJ45 port of the RS485 interface on Device 1. Set the DIP switches to code 1.
Device 2: Connect an Ethernet cable to any RJ45 port of the RS485 interface on Device 2. Set the DIP switches to code 2.
Device 3: Connect an Ethernet cable to any RJ45 port of the RS485 interface on Device 3. Set the DIP switches to code 3.
Device 4: Connect an Ethernet cable to any RJ45 port of the RS485 interface on Device 4. Set the DIP switches to code 4.

This setup allows the Master device to manage up to 16 PCs (4 PCs per slave device).

Usage

Front-panel Pushbutton

The front panel features:

Ports 1-4: Pushbuttons to switch freely to ports 1-4. The currently selected port is indicated by a green LED.
Quad-view Button: Toggles between Quad-view and single-view modes.
SET Button: Used for upgrading the port functionality.
CODE ID DIP Switch: Used for cascade dialing connection.
RS485 Ports: Used for cascade connections.
KEY Port: Connects a professional numeric keyboard.

Hot Key Operation

Hot key commands are initiated by pressing the Left Control (L_Ctrl) key twice, followed by the function key.

Function Name	Operation	Function Description
Port switching	L_Ctrl + L_Ctrl + [1] ~ [4]	Directly switch between ports 1 through 4.
Mode selection	L_Ctrl + L_Ctrl + [F1]	Single-view mode. Switches from quad-view to single-view, displaying the image of the port where the mouse is located.
	L_Ctrl + L_Ctrl + [F4]	Quad-view mode.
EDID of Input Port	L_Ctrl + L_Ctrl + [E] + [00]	Sets input resolution to 3840x2160@60Hz.
	L_Ctrl + L_Ctrl + [E] + [02]	Sets input resolution to 1920x1080@60Hz.
	L_Ctrl + L_Ctrl + [E] + [03]	Follows the resolution of the connected monitor.
Resolution of output port	L_Ctrl + L_Ctrl + [M] + [00]	Sets output resolution to 3840x2160@60Hz.
	L_Ctrl + L_Ctrl + [M] + [01]	Output resolution follows the monitor's; input resolution is 1920x1080.
	L_Ctrl + L_Ctrl + [M] + [02]	Sets output resolution to 1920x1080@60Hz.
	L_Ctrl + L_Ctrl + [M] + [03]	Follows the resolution of the connected monitor.
Lock audio	L_Ctrl + L_Ctrl + [A]	Locks the audio of the current port, preventing it from switching with the port. Press again to unlock.
Close/open audio	L_Ctrl + L_Ctrl + [0]	Turns off and on audio for all ports.
Lock USB 2.0	L_Ctrl + L_Ctrl + [U]	Locks the USB 2.0 of the current port, preventing it from switching with the port. Press again to unlock.
Turn off/on USB	L_Ctrl + L_Ctrl + [Y]	Turns off and on USB 2.0 for all ports.
Close/open Key-mouse broadcast	L_Ctrl + L_Ctrl + [B]	Synchronizes keyboard and mouse input to all ports in multi-view mode. Press again to disable broadcast.
Hot key loop	L_Ctrl + L_Ctrl + [F]	Cycles through hot key configurations (L_Ctrl -> Scroll Lock -> L_Ctrl).
Device reset	L_Ctrl + L_Ctrl + [R]	Resets the KVM device.

Mouse Switching

In Quad-view mode, double-clicking the middle mouse button exits Quad-view and switches to single-view mode. In single-view mode, double-clicking the middle mouse button exits single-view mode and switches to Quad-view mode.

PS/2 Professional Numerical Keyboard Switching (Optional)

The KVM switch supports switching using a PS/2 professional numerical keyboard. The keyboard can be used for port selection and mode selection.

Function Name	Operation	Function Description
Port switching	[1]	Press [1] to enter port 1.
	[2]	Press [2] to enter port 2.
	[3]	Press [3] to enter port 3.
	[4]	Press [4] to enter port 4.
Mode selection	[F1]	Single-view mode. When switching from quad-view mode, the screen displays the current port where the mouse is located.
	[F4]	Quad-view mode.

Appendix: Technical Specifications

Model No.	MH2404
Computer Connections	Direct: 4 Max (Cascaded): 16
Port selection	Push buttons, hotkeys, mouse
Display Mode	Quad-view, Single-view mode
Connectors - Console Ports	Display: 1x HDMI Type A Keyboard/Mouse: 2x USB Type A (White) Audio Output: 1x Min stereo jack (Pink)
Connectors - KVM Ports	Display: 4x HDMI Type A Keyboard/Mouse: 4x USB Type B Audio Input: 4x Min stereo jack (Pink) USB 2.0: 1x USB type A (White)
Switch	Port selected: 4x Pushbutton Mode selection: 1x Pushbutton
LEDs	Selected: 5x LEDs (Green)
Input Power Rating	DC12V/3A
Video Support	3840×2160 @60Hz, 1920x1080@60Hz
Power Consumption	20W
Environmental Requirements	Operating Temperature: 0-50°C Storage Temperature: -20-60°C Humidity: 0-80%RH, Non-condensing
Physical Properties	Housing: Metal Weight: 1.5 kg Dimensions: 270 mm x 166 mm x 44 mm

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