CMSTEDCD HDMI KVM Switch User Manual

1. Introduction

Thank you for choosing the CMSTEDCD HDMI KVM Switch. This device allows you to control up to three computers using a single set of keyboard, mouse, and two monitors, enhancing your workspace efficiency and reducing cable clutter. It supports high-resolution video up to 4K@60Hz and features USB 3.0 ports for high-speed peripheral sharing. This manual provides detailed instructions for setup, operation, maintenance, and troubleshooting to ensure you get the most out of your KVM switch.

Image: The CMSTEDCD HDMI KVM Switch, showcasing the main unit, USB cables, IR extension cable, and remote control.

2. Product Overview

2.1. Package Contents

• 1 x CMSTEDCD HDMI KVM Switch (Model: JHS-US-SW330)
• 3 x USB 3.0 Cables
• 1 x 12V Power Adapter
• 1 x Remote Control
• 1 x IR Extension Cable
• 1 x User Manual (this document)

2.2. Device Layout

Front Panel Ports

Image: Front panel of the CMSTEDCD HDMI KVM Switch, highlighting four USB 3.0 ports, an IR receiver, and three PC selection buttons (PC1, PC2, PC3), along with an external IR port and power switch.

• USB 3.0 Ports: Four ports for connecting USB devices such as mouse, keyboard, flash disk, HDD, printer, scanner, or gamepad.
• IR Receiver: For receiving signals from the remote control.
• PC Selection Buttons (PC1, PC2, PC3): Buttons to manually switch between connected computers.
• EXT IR Port: For connecting the external IR extension cable.
• ON/OFF Switch: Power toggle for the device.

Rear Panel Ports

Image: Rear panel of the CMSTEDCD HDMI KVM Switch, illustrating the DC12V power input, three sets of PC inputs (each with HDMI A, HDMI B, and USB 3.0), and two monitor outputs (OUT A, OUT B).

• DC12V: Power input port.
• PC1 IN, PC2 IN, PC3 IN: Input sections for connecting up to three computers. Each section includes:
  • HDMI A & HDMI B: HDMI inputs for dual monitor support from each PC.
  • USB 3.0: USB input for connecting the PC to the KVM switch for peripheral sharing.
• OUT A, OUT B: HDMI output ports for connecting two monitors.

3. Setup Instructions

Important Note: Your computer must have two signal output ports to provide both local and extended desktop displays to the monitors. If your computer or monitor signal interface is not HDMI, or if your laptop/Mac only has a USB-C port, please ensure compatibility or contact customer service for guidance.

1. Power Connection: Connect the provided 12V power adapter to the DC12V port on the rear panel of the KVM switch and plug it into a power outlet.
2. Computer Connections: For each computer (PC1, PC2, PC3) you wish to connect:
   • Connect the HDMI output from your computer's primary display port to the "HDMI A" input of the corresponding PC section on the KVM switch.
   • Connect the HDMI output from your computer's secondary display port to the "HDMI B" input of the corresponding PC section on the KVM switch.
   • Connect one end of the provided USB 3.0 cable to a USB 3.0 port on your computer and the other end to the "USB 3.0" input of the corresponding PC section on the KVM switch.
3. Monitor Connections:
   • Connect your first monitor to the "OUT A" HDMI port on the rear panel of the KVM switch.
   • Connect your second monitor to the "OUT B" HDMI port on the rear panel of the KVM switch.
4. Peripheral Connections: Connect your USB keyboard, mouse, and other USB 3.0 devices (e.g., flash drives, printers) to the four USB 3.0 ports on the front panel of the KVM switch.
5. IR Extension (Optional): If you plan to hide the KVM switch, connect the IR extension cable to the "EXT IR" port on the front panel and place the IR receiver in a visible location.
6. Power On: Flip the ON/OFF switch on the front panel to power on the KVM switch.

Image: A detailed connection diagram illustrating how to connect three PCs and two monitors to the CMSTEDCD HDMI KVM Switch, along with power and USB peripherals.

4. Operating Instructions

4.1. Switching Between Computers

The CMSTEDCD HDMI KVM Switch offers two convenient methods for switching between connected computers:

Button Switch

Press the corresponding PC selection button (PC1, PC2, or PC3) on the front panel of the KVM switch to instantly switch to that computer.

Image: A hand pressing one of the PC selection buttons on the KVM switch, demonstrating the manual switching method.

Remote Control

Use the provided wireless remote control to switch between computers. This allows for flexible placement of the KVM switch, keeping your desktop tidy.

Image: A hand holding the remote control, with an IR extension cable connected to the KVM switch, illustrating remote switching functionality.

4.2. Display Modes

The KVM switch supports both Copy (Mirror) and Extended display modes, allowing you to configure your dual monitors as needed.

• Copy Mode: Displays the same image on both monitors simultaneously.
• Extended Mode: Extends your desktop across both monitors, providing two different images for increased workspace.

To configure display modes, press the WIN+P key on your keyboard and select either "Mirror" or "Extend Display" as required by your operating system.

Image: A visual representation of two monitors connected via the KVM switch, demonstrating both extended display mode (left) and mirrored display mode (right).

4.3. USB 3.0 Functionality

The KVM switch is equipped with four USB 3.0 ports, enabling high-speed data transfer and sharing of various USB devices.

• High-Speed Transfer: Supports a maximum transfer rate of 5Gbps, significantly faster than USB 2.0.
• Device Sharing: Connect keyboards, mice, printers, scanners, flash drives, and other USB devices to be shared across all connected computers.
• Hot-Swapping: USB 3.0 supports hot-swapping, protecting your devices and data. It is backward compatible with USB 2.0 and 1.1.

Image: A close-up view of the KVM switch's USB 3.0 ports, with a USB flash drive inserted, illustrating the 5Gbps transfer speed compared to USB 2.0's 480Mbps.

4.4. 4K EDID KVM Switcher Features

This KVM switch supports advanced video features for optimal display performance:

• High Resolution: Supports up to 4K@60Hz HD resolution, backward compatible with 2K and 1080P.
• EDID Functions:
  • When switching between PCs, the KVM maintains the original window arrangement on the screen, preventing disruption.
  • Automatically detects and applies the optimal resolution for your connected monitors.

Image: Two monitors showcasing vibrant, high-resolution content (4K@60Hz) connected to the CMSTEDCD KVM switch, emphasizing audio and video synchronization.

5. Maintenance

To ensure the longevity and optimal performance of your CMSTEDCD HDMI KVM Switch, please follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the exterior of the device. Do not use liquid cleaners or aerosol sprays, as they may damage the unit.
• Ventilation: Ensure the KVM switch is placed in a well-ventilated area to prevent overheating. Do not block the ventilation slots.
• Storage: When not in use for extended periods, store the device in a cool, dry place away from direct sunlight and extreme temperatures.
• Cable Management: Keep cables organized and free from kinks or excessive bending to prevent damage to the connectors and wires.

6. Troubleshooting

If you encounter issues with your CMSTEDCD HDMI KVM Switch, refer to the following common troubleshooting steps:

6.1. USB Not Working

• Cable Connection: Confirm that the USB 3.0 cable is properly connected between the computer and the KVM switch.
• Computer USB Port: Verify that the computer's USB port is functioning correctly by testing it with another device.
• USB Driver: Ensure that the latest USB driver is installed on your computer.

6.2. Display Has No Image

• Switch & KVM Video Ports: Confirm that the switch and KVM video ports match correctly.
• PC to KVM Input Cables: Ensure that the input cables from your PC to the KVM are connected correctly. Specifically, Input A should correspond to OUT-A display, and Input B to OUT-B display.
• Cable Quality: Use high-quality video cables, preferably 3.3ft (1 meter) or shorter for optimal performance. Conversion cables are generally not supported.
• Active Adapters: If an adapter is required (e.g., DisplayPort to HDMI), please use an active adapter.
• Power Cycle: Try power cycling the KVM switch and your monitors.

7. Specifications

8. Warranty and Support

CMSTEDCD is committed to providing high-quality products and excellent customer service.

Within 24 months after purchase, if you encounter any problems with your HDMI KVM Switch, please do not hesitate to contact us via Amazon. We are dedicated to providing technical support, product replacement, or refund services to ensure your satisfaction.

For further assistance, please visit the official CMSTEDCD Store on Amazon.