Introduction
The 10Gtek SFP to SFP Fiber OEO Converter is designed to facilitate seamless conversion between two optical SFP modules with compatible data rates. This device supports speeds from 100Mbps to 2.5Gbps, enabling conversion across different wavelengths, distances, and fiber modes (singlemode/multimode, CWDM). It is protocol-transparent, ensuring stable and ultra-low time-delay data transmission for various optical communication applications including Fast Ethernet, Gigabit Ethernet, OC-12, and Fiber Channel. This manual provides essential information for the proper setup, operation, and maintenance of your OEO Mode Converter.
Key Features:
- Multiple Conversion Capabilities: Supports Wavelength Conversion, Fiber Mode Conversion, Fiber Count Conversion, and Signal Repeating for 1.25G/2.5Gbps SFP OEO (optical-electrical-optical) media.
- Wide Compatibility: Two SFP slots accommodate SFP transceivers from 100Mbps to 2.5Gbps (Multimode, Singlemode, CWDM, Dual Fiber, Single Fiber). Ensure matching speed modules are used in SFP1 and SFP2.
- Protocol Transparent: Equipped with an RTL8213B chip for stability and ultra-low time-delay. Compatible with all protocols, provided the data rate is correct.
- Plug and Play: Features a modular configuration design supporting hot-swappable modules. LED indicators (P1, P2, POWER) provide dynamic feedback on link status and fault detection.
What's in the Box
Verify that all items are present in your package:

Image: Packaging list showing the media converter, power cable, and user's manual.
- 1x Two Ports 1.25G/2.5Gbps SFP OEO Mode Media Converter
- 1x DC Power Adapter
- 1x User's Manual
Setup
Follow these steps to set up your 10GTEK SFP OEO Mode Converter:
- Connect Power: Plug the DC Power Adapter into the converter's power port (DC 5V, 1A). Ensure the power LED (PWR) illuminates, indicating the device is receiving power. The converter supports 5VDC, 1A power input.
- Insert SFP Modules: Insert compatible SFP transceivers into both SFP1 and SFP2 ports. Ensure that the SFP modules have matching speeds (100Mbps, 1.25Gbps, or 2.5Gbps) for proper operation. The converter supports various SFP types including Multimode, Singlemode, CWDM, Dual Fiber, and Single Fiber.
- Connect Fiber Optic Cables: Connect the appropriate fiber optic cables to the SFP modules. Ensure the cables are compatible with your SFP transceivers (e.g., LC-to-LC UPC fiber patch cord for dual fiber SFP modules).
- Verify Connections: Check the LED indicators on the converter. The P1 and P2 LEDs should illuminate when the respective SFP ports are working, and the Link/ACT LEDs should indicate active connections.

Image: Front view of the 10GTEK SFP OEO Mode Converter, highlighting the SFP ports and LED indicators.

Image: Diagram illustrating the application of the media converter with SFP transceivers and fiber optic cables.
Setup Video Guides:
Video: A general overview of a Gigabit Ethernet Media Converter, demonstrating basic connections and functionality. This video is provided by 10Gtek.
Video: A how-to demonstration for a 2.5G Fiber Ethernet Media Converter, showing practical setup steps. This video is provided by AD-net.
Operating
The 10GTEK SFP OEO Mode Converter operates automatically once properly connected. Monitor the LED indicators for operational status:

Image: Close-up of the converter's LEDs, indicating P1 (SFP1 port working), P2 (SFP2 port working), and PWR (DC power on).
- PWR LED: Illuminates when the device is powered on.
- P1 LED: Indicates activity and link status for SFP Port 1. A solid light typically means a link is established, and blinking indicates data activity.
- P2 LED: Indicates activity and link status for SFP Port 2. A solid light typically means a link is established, and blinking indicates data activity.
Maintenance
To ensure optimal performance and longevity of your 10GTEK SFP OEO Mode Converter, follow these maintenance guidelines:
- Keep Clean: Regularly clean the device and its ports with a soft, dry cloth. Ensure SFP ports are free from dust and debris when not in use by keeping dust caps on.
- Proper Ventilation: Ensure the converter is placed in a well-ventilated area to prevent overheating. Do not block the ventilation holes.
- Handle with Care: Avoid dropping or subjecting the device to strong impacts.
- Environmental Conditions: Operate the device within the specified ambient temperature (0 ~ +50℃) and humidity (5% ~ 90%) ranges.
Troubleshooting
If you encounter issues with your 10GTEK SFP OEO Mode Converter, refer to the following troubleshooting tips:
- No Power: Check if the DC Power Adapter is securely connected to both the converter and a working power outlet. Verify the PWR LED is illuminated.
- No Link on SFP Port: Ensure the SFP module is correctly inserted and fully seated. Check the fiber optic cable for damage and ensure it is properly connected to both the SFP module and the remote device. Verify that the SFP modules on both ends are compatible and operating at the same speed.
- Intermittent Connection: Inspect all cable connections for looseness or damage. Ensure the fiber optic cables are not bent beyond their minimum bend radius.
- Incorrect Speed: Confirm that the SFP modules used in both ports are rated for the desired speed (100Mbps, 1.25Gbps, or 2.5Gbps) and that they are compatible with each other.
- Device Not Functioning as Expected: Disconnect power, wait a few seconds, and then reconnect power to restart the device. If issues persist, consult the technical support information.
Specifications
| Feature | Description |
|---|---|
| Interfaces | 2x SFP ports |
| Data Rate | 100M ~ 2.5Gbps |
| LED Indicators | P1, P2, POWER |
| Power Supply | 5VDC, 1A |
| Ambient Temperature | 0 ~ +50℃ |
| Storage Temperature | -20 ~ +70℃ |
| Humidity | 5% ~ 90% |
| Dimensions (L x W x H) | 71 x 93 x 26mm (2.8 x 3.66 x 1.02 inches) |
| Item Weight | 9.6 ounces (0.27 Kilograms) |
| Model Number | G0200-SFP |
Warranty & Support
Your 10GTEK SFP OEO Mode Converter comes with a 1 Year warranty and lifetime technical support. Additionally, a 30-day Money-Back guarantee is provided. For technical assistance, troubleshooting, or warranty claims, please contact 10Gtek customer service through their official channels or the retailer where the product was purchased.





