Overview
This lecture covers the main types of fiber optic connectors—ST, SC, and LC—highlighting their features, connection mechanisms, and usage.
ST Connector (Straight Tip)
- ST stands for "Straight Tip" and is easily identified by its straight end.
- It uses a bayonet connector, which requires pushing in and twisting slightly to lock.
- To remove, untwist and pull out the connector.
- The bayonet mechanism prevents accidental disconnects.
SC Connector (Subscriber/Square/Standard Connector)
- SC stands for "Subscriber Connector" and may also be called "Square Connector" or "Standard Connector."
- This connector locks in place by simply pushing it in; to remove, pull on the outside of the connector.
- Commonly used in data centers, patch panels, and devices.
- Available as single connectors or combined pairs to connect both send and receive fibers simultaneously.
LC Connector (Lucent/Local/Little Connector)
- LC stands for "Lucent Connector," also known as "Local Connector" or "Little Connector."
- It is smaller and more compact compared to ST and SC connectors.
- Uses a clip on top to secure it in place.
- LC connectors are often paired to easily connect/disconnect both fibers at once.
Connector Comparison and General Guidelines
- ST is the largest, SC is medium-sized, and LC is the smallest connector.
- All connectors serve the same purpose: enable connecting and disconnecting fiber optic cables.
- Ensure connector types on both devices match before attempting a connection.
Key Terms & Definitions
- Fiber Optic Connector — a device used to join optical fibers for connection and disconnection.
- ST Connector — a straight tip, bayonet-style fiber optic connector.
- SC Connector — a push-on, pull-off square-shaped fiber optic connector.
- LC Connector — a small, clip-based fiber optic connector for high-density connections.
- Bayonet Connector — a locking mechanism requiring push and twist to secure.
Action Items / Next Steps
- Review the physical appearance and locking mechanisms of ST, SC, and LC connectors.
- Confirm the connector type required for any fiber optic device before installation.