You can connect an SC optical module to an FC interface using a hybrid SC-to-FC fiber optic adapter designed for single-mode fiber.

Understanding SC and FC Connectors

SC (Subscriber Connector) features a square push-pull design, making it easy to insert and remove. It is widely used in telecom, datacom, and Gigabit Ethernet networks due to its low insertion loss and good mechanical stability . FC (Ferrule Connector) has a round, screw-threaded body, providing high precision and reliability, especially in high-vibration or long-haul telecom applications. It is commonly used in single-mode fiber systems and measurement equipment . The main difference lies in the locking mechanism: SC uses a push-pull latch, while FC uses a threaded screw connection, which ensures a more secure and vibration-resistant connection.

Using an SC-to-FC Adapter

To connect an SC optical module to an FC interface, you need a hybrid fiber optic adapter. For example, the L-com FOA-SM-SCMFCF is a single-mode adapter with an SC male to FC female configuration . This adapter allows the SC module to mate with an FC port while maintaining proper fiber alignment and minimizing insertion loss.

Key Considerations:

• Fiber Type: Ensure both the SC module and FC interface are compatible (single-mode or multimode). The adapter mentioned is for single-mode fiber .
• Insertion Loss: High-quality adapters typically have low insertion loss, preserving signal integrity.
• Connector Gender: Verify the SC module is male or female and match it with the adapter accordingly.
• Polish Type: Check if the connectors are UPC (Ultra Physical Contact) or APC (Angled Physical Contact), as mismatched polish types can increase return loss.

Installation Tips

• Clean both fiber ends before connecting to prevent signal degradation.
• Insert the SC connector into the adapter until the spring clicks, then screw the FC connector into place.
• Avoid excessive force to prevent ferrule damage. Using a hybrid SC-to-FC adapter is a straightforward and reliable solution for linking different fiber connector types in single-mode networks, ensuring stable optical transmission and minimal signal loss .