1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Lantronix KVM Serverswitch, model 300.000.9000. This device allows you to control multiple computers from a single PS/2 keyboard, PS/2 mouse, and VGA monitor console. Please read this manual thoroughly before using the product to ensure proper setup and optimal performance.
2. Safety Information
To prevent damage to the product or injury to yourself, observe the following safety precautions:
- Ensure the device is placed on a stable, level surface.
- Do not expose the device to moisture, extreme temperatures, or direct sunlight.
- Use only the power adapter supplied with the unit.
- Do not open the device casing. Refer all servicing to qualified personnel.
- Disconnect power before cleaning. Use a soft, dry cloth for cleaning.
3. Package Contents
Verify that all items are present in your package:
- Lantronix KVM Serverswitch (Model 300.000.9000)
- Power Adapter
- Rack Mount Kit (optional, may be sold separately)
- Quick Start Guide (this document serves as the full manual)
4. Product Overview
The Lantronix KVM Serverswitch 300.000.9000 is an 8-port KVM switch designed for managing multiple PS/2-based servers or PCs. It features a robust design suitable for server room environments.
4.1 Front Panel
The front panel typically includes port selection buttons and LED indicators for active ports.

Image: Front view of the Lantronix KVM Serverswitch. This image displays the device's front panel, featuring multiple buttons for selecting connected computers and corresponding LED indicators to show the active port.
4.2 Rear Panel
The rear panel houses the console ports for your keyboard, mouse, and monitor, as well as the KVM ports for connecting to the servers/PCs and the power input.
Note: A specific image for the rear panel is not available. Please refer to the physical device for port identification.
5. Setup
Follow these steps to set up your KVM Serverswitch:
- Power Off All Devices: Ensure all computers and the KVM switch are powered off before making any connections.
- Connect Console Devices:
- Connect your PS/2 keyboard to the keyboard port on the KVM switch's console section.
- Connect your PS/2 mouse to the mouse port on the KVM switch's console section.
- Connect your VGA monitor to the VGA port on the KVM switch's console section.
- Connect Computers: For each computer you wish to connect:
- Connect a KVM cable (VGA, PS/2 keyboard, PS/2 mouse) from the computer's respective ports to an available KVM port on the switch.
- Ensure a secure connection for all cables.
- Connect Power: Plug the supplied power adapter into the KVM switch's power input, then plug the adapter into a power outlet.
- Power On: First, power on the KVM switch. Then, power on all connected computers.
6. Operating the KVM Serverswitch
The Lantronix KVM Serverswitch offers multiple methods for switching between connected computers.
6.1 Front Panel Push Buttons
Press the corresponding button on the front panel to switch to the desired computer. The LED indicator for the selected port will illuminate.
6.2 Hotkey Switching
Use keyboard hotkeys to switch between computers without needing to reach the switch. Common hotkey sequences include:
- [Scroll Lock] + [Scroll Lock] + [Port Number]: Switches directly to the specified port.
- [Scroll Lock] + [Scroll Lock] + [Up/Down Arrow]: Switches to the next/previous port.
- Refer to the specific hotkey combinations printed on the device or in a separate quick start guide if available, as they can vary.
6.3 Auto-Scan Mode
The KVM switch may feature an auto-scan mode that automatically cycles through all connected computers, displaying each for a set duration. This is useful for monitoring multiple systems. Consult the device's specific features for activating and configuring auto-scan.
7. Maintenance
Regular maintenance ensures the longevity and optimal performance of your KVM switch.
- Cleaning: Disconnect power before cleaning. Use a soft, dry, lint-free cloth to wipe the exterior of the device. Do not use liquid or aerosol cleaners.
- Ventilation: Ensure that the ventilation openings are not blocked. Proper airflow prevents overheating.
- Cable Management: Keep cables organized and free from kinks or excessive tension to prevent damage to connectors and ensure reliable signal transmission.
8. Troubleshooting
If you encounter issues with your KVM Serverswitch, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No video display. | Loose VGA cable connection. Incorrect port selected. Monitor not powered on. | Check all VGA cable connections. Ensure the correct port is selected on the KVM switch. Verify monitor power. |
| Keyboard or mouse not responding. | Loose PS/2 cable connection. Incorrect port selected. Keyboard/mouse not compatible. | Check all PS/2 cable connections. Ensure the correct port is selected. Try a different keyboard/mouse if available. |
| KVM switch not powering on. | Power adapter not connected or faulty. Power outlet not working. | Verify power adapter connection to the switch and outlet. Test the outlet with another device. |
| Cannot switch between computers. | Hotkeys not recognized. Front panel buttons unresponsive. | Ensure hotkey sequence is correct. Try using front panel buttons. Power cycle the KVM switch and connected computers. |
9. Specifications
Key technical specifications for the Lantronix KVM Serverswitch 300.000.9000:
- Model Number: 300.000.9000
- ASIN: B00006B74R
- Brand: Lantronix
- Number of Ports: 8 (for PS/2 PCs/Servers)
- Console Connections: 1 x VGA, 1 x PS/2 Keyboard, 1 x PS/2 Mouse
- PC Connections: 8 x VGA, 8 x PS/2 Keyboard, 8 x PS/2 Mouse (via KVM cables)
- Switching Methods: Front Panel Push Buttons, Hotkeys
- Package Dimensions: 22.5 x 12.25 x 6.5 inches
- Item Weight: 11.18 pounds
- Manufacturer: LANTRONIX
- Date First Available: June 21, 2002
- UPC: 783384222113
10. Warranty and Support
For warranty information and technical support, please refer to the official Lantronix website or contact their customer service department. Keep your purchase receipt as proof of purchase for warranty claims.
Lantronix Official Website: www.lantronix.com