1. Introduction
The TP-Link MC200CM is a media converter designed to facilitate the conversion between 1000BASE-SX fiber optic media and 1000Base-T copper media. This device enables the extension of network distances by utilizing multi-mode fiber optic cable. It operates at 850nm wavelength for both transmitting and receiving data, supporting full wire speed forwarding rates.
Key functionalities include:
- Converts 1000BASE-SX fiber to 1000Base-T copper media and vice versa.
- Operates at 1000Mbps in full-duplex mode for both TX (RJ45) and FX (Fiber) ports.
- Supports auto MDI/MDIX for the TX port.
- Provides switch configuration for Force/Auto transfer mode on the FX port.
- Extends fiber distance up to 550 meters (1,800 feet) using 50/125um Multi-Mode Fiber, or 220 meters (720 feet) using 62.5/125um Multi-Mode Fiber.
- Features easy-to-view LED indicators for monitoring network activity.
- Powered by an external power supply.
2. Package Contents
Verify that your package contains the following items:
- TP-Link MC200CM Media Converter
- Power Adapter
- Installation Guide
If any item is missing or damaged, please contact your vendor.
3. Product Overview
The MC200CM is a compact device designed for efficient media conversion. It features standard ports and LED indicators for easy monitoring.

Figure 1: Front view of the TP-Link MC200CM Media Converter, showing the fiber (TX/RX) ports, Gigabit Ethernet port, and LED indicators.
The MC200CM is part of a series of TP-Link media converters, offering various options for different fiber types and speeds.

Figure 2: TP-Link Media Converter family, highlighting the MC200CM.
3.1. Physical Interface
- TX Port (Fiber): Transmit fiber optic connection.
- RX Port (Fiber): Receive fiber optic connection.
- Gigabit Ethernet Port (RJ45): Standard Ethernet connection for copper cabling.
- Power Input: For connecting the external power adapter.
3.2. LED Indicators
- PWR (Power): Indicates the power status of the device.
- FX Link/Act (Fiber Link/Activity): Indicates the link status and activity on the fiber optic port.
- TP Link/Act (Ethernet Link/Activity): Indicates the link status and activity on the RJ45 Ethernet port.
4. Setup and Installation
The MC200CM is designed for straightforward installation. Follow these steps to integrate the media converter into your network.
- Power Off Devices: Before making any connections, ensure that all devices (e.g., switches, routers, computers) to be connected to the media converter are powered off.
- Connect Fiber Optic Cable: Connect one end of the multi-mode fiber optic cable (with SC-Type connectors) to the FX (TX/RX) ports of the MC200CM. Connect the other end of the fiber optic cable to the corresponding fiber port on your fiber-enabled device (e.g., another media converter, fiber switch). Ensure the TX port on one device connects to the RX port on the other, and vice-versa.
- Connect Ethernet Cable: Connect a standard Ethernet cable (Cat5e or higher) from the Gigabit Ethernet (RJ45) port of the MC200CM to the Ethernet port of your copper-based network device (e.g., switch, router, PC).
- Connect Power Adapter: Plug the provided power adapter into the power input of the MC200CM, then plug the adapter into a power outlet.
- Power On Devices: Power on all connected devices. Observe the LED indicators on the MC200CM to confirm proper operation.
The MC200CM can be used in various network scenarios, including surveillance systems, point-to-point fiber connections, and long-range data transmission.

Figure 3: Example deployment scenarios for TP-Link media converters.
5. Operating the Device
Once connected, the MC200CM operates automatically. The LED indicators provide visual feedback on the device's status and network activity.
- PWR LED:
- On: The device is powered on.
- Off: The device is powered off.
- FX Link/Act LED:
- On: A valid fiber link is established.
- Flashing: Data is being transmitted or received over the fiber link.
- Off: No fiber link is detected.
- TP Link/Act LED:
- On: A valid Ethernet link is established.
- Flashing: Data is being transmitted or received over the Ethernet link.
- Off: No Ethernet link is detected.
For optimal performance, ensure both FX and TP Link/Act LEDs are illuminated (or flashing during activity) after setup.
6. Specifications
The following table details the technical specifications for the TP-Link MC200CM Media Converter.
| Feature | Detail |
|---|---|
| Brand | TP-Link |
| Model Number | MC200CM |
| Hardware Interface | Ethernet |
| Data Link Protocol | Ethernet, IEEE 802.3 |
| Data Transfer Rate | 1000 Megabits Per Second |
| Fiber Type | Multi-Mode Fiber (1000BASE-SX) |
| Connector Type | SC-Type |
| Wavelength | 850nm |
| Max Fiber Distance | 550m (50/125um MMF), 220m (62.5/125um MMF) |
| Power Source | Corded Electric |
| Voltage | 5 Volts |
| Max Power Consumption | 1.66W |
| Product Dimensions (LxWxH) | 3.7" x 2.9" x 1.1" (94.5 x 73.0 x 27.0 mm) |
| Item Weight | 12.8 ounces |
| Operating Temperature | 0–40°C (32–104°F) |
| Storage Temperature | -40–70°C (-40–158°F) |
| Operating Humidity | 10–90% RH Non-Condensing |
| Storage Humidity | 5–90% RH Non-Condensing |

Figure 4: Comparative specifications for TP-Link media converters.
7. Troubleshooting
If you encounter issues with your MC200CM, consider the following common troubleshooting steps:
- No Power (PWR LED Off):
- Ensure the power adapter is securely connected to the device and a working power outlet.
- Verify the power outlet is functional by plugging in another device.
- No Fiber Link (FX Link/Act LED Off):
- Check the fiber optic cable connections at both ends. Ensure they are securely seated and not damaged.
- Verify that the fiber optic cable type (multi-mode) and wavelength (850nm) are compatible with both connected devices.
- Ensure the remote fiber device is powered on and functioning correctly.
- Confirm that the TX port on one device is connected to the RX port on the other, and vice-versa.
- No Ethernet Link (TP Link/Act LED Off):
- Check the Ethernet cable connection between the MC200CM and your network device.
- Ensure the Ethernet cable is not damaged and is a Cat5e or higher standard.
- Verify that the connected network device (e.g., switch, router, PC) is powered on and its Ethernet port is active.
- Slow Performance:
- Ensure all cables are securely connected.
- Check for excessive cable length or damage to the fiber or Ethernet cables.
- Verify that both connected devices are operating at Gigabit speeds.
If problems persist after attempting these steps, refer to the support section for further assistance.
8. Maintenance
The TP-Link MC200CM is designed for reliable operation with minimal maintenance. Adhere to the following guidelines:
- Environment: Operate the device within the specified temperature and humidity ranges to prevent damage.
- Cleaning: Keep the device clean and free from dust. Use a soft, dry cloth for cleaning. Do not use liquid or aerosol cleaners.
- Cable Management: Ensure fiber optic and Ethernet cables are not excessively bent, pinched, or strained, as this can affect performance or cause damage.
- Power Supply: Use only the power adapter provided with the device.
9. Support and Warranty
For additional support, product information, or warranty details, please refer to the following resources:
- Official User Manual (PDF): Download User Manual
- Official User Guide (PDF): Download User Guide
- TP-Link Support Website: Visit TP-Link Support
- TP-Link Brand Store: Explore TP-Link Products
For direct assistance, you may contact TP-Link support:
- Phone: (866) 225-8139
- Product Support Portal: myproducts.tp-link.com/us
- Email: support.USA@tp-link.com
Warranty information is typically included with the product packaging or available on the official TP-Link website. Please retain your proof of purchase for warranty claims.





