1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your 10Gtek 3-Port Gigabit Ethernet Fiber Switch. This device is designed to extend network distances by converting Gigabit Ethernet signals to fiber optic signals, supporting reliable data transmission over long distances.
The switch features one Gigabit Ethernet fiber port with dual SC connectors, supporting 1000Mbps over 20 km using 1310-nm singlemode fiber. It also includes two RJ-45 ports for 10/100/1000Mbps full/half duplex auto-negotiation with MDI/MDIX auto-crossover.

Image 1.1: Front-top view of the 10Gtek 3-Port Gigabit Ethernet Fiber Switch.
2. Product Features
- 1 Port Gigabit Ethernet Fiber: Dual SC fiber, 1000Mbps, 20-km range, 1310-nm wavelength, singlemode operation.
- 2 Ports RJ-45: 10/100/1000Mbps full/half duplex auto-negotiation, MDI/MDIX auto-crossover for flexible connectivity.
- Cable Type Support: Compatible with UTP/STP Cat.5e/6 cables, supporting distances up to 100 meters for RJ-45 connections.
- LED Indicators: Features LED indicators for Power (PWR), Fiber Link/Activity (FX), and RJ-45 Port Link/Activity/Speed (TX1 1000, TX1 LINK, TX2 1000, TX2 LINK). These indicators provide dynamic feedback on connection status and aid in fault detection.
3. Package Contents
Please verify that all items are present and in good condition. If any items are missing or damaged, please contact 10Gtek support.
- 1 x 10Gtek 3-Port Gigabit Ethernet Fiber Switch (Model: G0102-SC20)
- 1 x Power Adapter
- 1 x User Manual (this document)
4. Setup Instructions
Follow these steps to set up your Gigabit Ethernet Fiber Switch:
- Unpack the Device: Carefully remove the switch from its packaging.
- Power Connection: Connect the provided power adapter to the switch's power input port and then plug the adapter into a standard electrical outlet. The PWR LED indicator should illuminate.
- Fiber Optic Connection: Connect your singlemode fiber optic cable (with dual SC connectors) to the fiber port (TX/RX) on the switch. Ensure the connectors are clean and properly seated. The FX LED indicator will light up when a valid fiber link is established.
- Ethernet Connections: Connect your Ethernet devices (e.g., computer, router, other switches) to the RJ-45 ports (TX1, TX2) using Cat.5e/6 UTP/STP cables. The corresponding TX LINK and TX 1000 LEDs will indicate a successful connection and Gigabit speed, respectively.

Image 4.1: Close-up view of the switch ports and LED indicators.
5. Operating Instructions
The 10Gtek 3-Port Gigabit Ethernet Fiber Switch operates automatically once connected. It functions as a plug-and-play device, requiring no software configuration.
- Data Transmission: The switch transparently forwards data packets between the connected fiber optic network and the Ethernet devices.
- Auto-Negotiation: The RJ-45 ports automatically detect the speed (10/100/1000Mbps) and duplex mode (full/half) of the connected Ethernet devices.
- MDI/MDIX Auto-Crossover: The RJ-45 ports automatically adjust for straight-through or crossover Ethernet cables, simplifying connection.
- Monitoring Status: Observe the LED indicators to confirm proper operation and troubleshoot any connection issues.
6. Maintenance
To ensure optimal performance and longevity of your switch, follow these maintenance guidelines:
- Cleaning: Keep the device clean and free from dust. Use a soft, dry cloth for cleaning. Avoid liquid cleaners.
- Environment: Operate the switch in a well-ventilated area, away from direct sunlight, heat sources, and excessive moisture.
- Fiber Optic Care: Always keep fiber optic connectors clean. Use appropriate fiber cleaning tools if necessary. Never look directly into an active fiber optic port.
- Power Cycle: If the device becomes unresponsive, disconnect the power adapter, wait for 10 seconds, and then reconnect it.
7. Troubleshooting
If you encounter issues with your switch, refer to the following troubleshooting tips:
| Problem | Possible Cause | Solution |
|---|---|---|
| No Power (PWR LED off) | Power adapter not connected or faulty; power outlet not working. | Check power adapter connection. Try a different power outlet. Ensure the adapter is the correct one for the device. |
| No Fiber Link (FX LED off) | Fiber cable disconnected, damaged, or dirty; incorrect fiber type; remote device off or faulty. | Ensure fiber cable is securely connected and clean. Verify the fiber cable is singlemode and compatible. Check the remote fiber device. |
| No Ethernet Link (TX LINK LED off) | Ethernet cable disconnected or faulty; connected device off or faulty; incorrect cable type. | Check Ethernet cable connection. Try a different cable. Ensure the connected device is powered on and functioning. |
| Slow Ethernet Speed (TX 1000 LED off, but TX LINK on) | Connected device operating at 10/100Mbps; cable quality issue. | Verify the connected device supports Gigabit Ethernet. Use a high-quality Cat.5e or Cat.6 cable. |
If the problem persists after trying these solutions, please contact 10Gtek customer support.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | 10Gtek |
| Model Number | G0102-SC20 |
| Number of Ports | 3 (1 Fiber, 2 RJ-45) |
| Fiber Port Type | Dual SC, Singlemode |
| Fiber Wavelength | 1310-nm |
| Fiber Distance | Up to 20 km |
| RJ-45 Port Speed | 10/100/1000Mbps Auto-Negotiation |
| RJ-45 Cable Type | UTP/STP Cat.5e/6 (up to 100m) |
| Data Transfer Rate | 1000 Megabits Per Second |
| Switch Type | Managed (Basic functionality) |
| Case Material | Metal |
| Compatible Devices | Desktop, Network Devices |
9. Warranty and Support
This product is covered by 10Gtek's standard warranty. For specific warranty terms and conditions, please refer to the documentation included with your purchase or visit the official 10Gtek website.
For technical support, troubleshooting assistance, or to inquire about replacement parts, please contact 10Gtek customer service. You can often find support resources and contact information on the 10Gtek Store on Amazon or their official website.
The return policy for this product allows for returns or replacements within 30 days of purchase, subject to Amazon's return guidelines.