The connector for a fiber optic patch cord is called

Fiber optic patch cords use connectors such as LC, SC, FC, ST, and MPO to terminate the cable ends for network connections.

Overview

A fiber optic patch cord is a short optical fiber cable with connectors on both ends, designed for flexible, short-distance connections between devices like switches, servers, patch panels, and optical transceivers . The connector ensures precise alignment of the fiber cores to minimize signal loss and maintain network performance .

Common Connector Types

• LC (Lucent Connector): Small form factor, push-pull mechanism, widely used in modern data centers, often in duplex assemblies for high-density applications .
• SC (Subscriber Connector): Square, snap-in connector, common in passive optical networks and enterprise LANs .
• FC (Ferrule Connector): Screw-on metal connector, secure against vibration, used in high-precision or industrial environments .
• ST (Straight Tip): Bayonet mount, older design still found in legacy networks .
• MPO/MTP: Multi-fiber connectors housing 8, 12, or 24 fibers, essential for high-density parallel optics like 40G/100G links .
• Other types: MU, MT-RJ, E2000, depending on specific network requirements .

Assembly Styles

• Simplex: Single connector on one fiber, used for one-way connections .
• Duplex: Two connectors side by side, often called "zip cord," used for bidirectional communication .

Fiber Mode Considerations

• Single-mode fiber: Typically yellow jacket, small core (~9µm), suitable for long-distance transmission .
• Multimode fiber: Core sizes 50µm or 62.5µm, color-coded jackets (OM1/OM2 orange, OM3 aqua, OM4 violet, OM5 lime green), used for short-distance, high-bandwidth intra-data center links . Choosing the correct connector type depends on the equipment interface, fiber mode, and network application. Using the wrong connector can lead to signal loss, downtime, or compatibility issues .