Where is the fiber optic cable in a Huawei router

The fiber optic cable connects to the OPTICAL port on the Huawei router or ONT, usually located on the rear or side of the device and often covered with a rubber plug.

Identifying the Optical Port

On most Huawei routers or ONTs, the OPTICAL port is clearly labeled and is the designated port for the fiber optic cable. It is typically located:

• On the rear panel of the device, alongside other ports such as LAN, TEL, and CATV .
• On the side or bottom in some models, depending on the router design .
• The port is usually covered with a rubber plug to protect it when not in use .

The fiber connector used is commonly an SC/APC type, which ensures proper alignment and minimal signal loss .

Connecting the Fiber Cable

1. Remove the protective rubber plug from the OPTICAL port.
2. Insert the fiber optic cable firmly into the port until it clicks or is fully seated .
3. Ensure the cable is not bent sharply and is routed according to cabling guidelines to prevent damage .
4. Check the PON indicator light on the router or ONT; a steady green light usually indicates a successful fiber connection .

Additional Tips

• Do not unplug the fiber cable unless necessary, as it can disrupt your internet connection .
• If the PON light is off or flashing, verify that the fiber is fully inserted and contact your ISP if issues persist .
• Some Huawei models allow direct connection of the fiber without an additional optical module, while others may require an SFP module .

By locating the OPTICAL port and following proper connection procedures, you can ensure your Huawei router or ONT is correctly linked to the fiber optic network.