Lc-sc Single-mode dual-core fiber

LC-SC single-mode dual-core fiber cables are duplex fiber optic patch cords designed for high-speed, long-distance data transmission with 9/125 µm core/cladding dimensions.

Overview

An LC-SC single-mode duplex fiber cable features LC connectors (1.25 mm ferrule) on one end and SC connectors (2.5 mm ferrule) on the other, joined in a duplex configuration for simultaneous bidirectional communication . The fiber itself is single-mode (OS1/OS2) with a 9 µm core and 125 µm cladding, optimized for long-distance, high-bandwidth applications . These cables are typically yellow-jacketed, zip-cord reinforced, and can be riser-rated (OFNR) for indoor installations .

Key Specifications

• Core/Cladding: 9/125 µm
• Connector Types: LC duplex to SC duplex
• Cable Jacket: PVC or LSZH, 2 mm diameter typical
• Attenuation: ~0.25 dB/km at 1550 nm, ~0.35 dB/km at 1310 nm
• Operating Temperature: -20°C to 70°C
• Bending Radius: Minimum 5 cm during installation, 3 cm during use
• Distance Support: 5–10 km at 1310 nm, 30–40 km at 1550 nm
• Standards Compliance: ITU-T G.652A/B, IEC 60793-2-50 Type B1.1, RoHS

Applications

LC-SC single-mode duplex fibers are widely used in:

• Telecommunication networks for GPON, FTTX, and backbone connections
• Data centers and LAN/WAN networks requiring high-speed, low-loss connections
• Fiber Channel and Gigabit Ethernet systems
• Optical testing and CATV systems

Advantages

• High bandwidth and low signal attenuation for long-distance transmission
• Compact LC connector allows high-density patching
• Durable SC connector provides secure snap-in connections
• Laser-optimized single-mode fiber ensures consistent performance in critical network infrastructure
• Flexible and durable for tight installation spaces without compromising performance

Summary

The LC-SC single-mode dual-core fiber is ideal for high-speed, long-distance optical networks where reliable, low-loss connections are required. Its duplex configuration supports bidirectional communication, making it suitable for telecom, data center, and enterprise network applications. Proper selection ensures optimal performance for 10G networks and beyond, with compliance to international fiber standards and environmental safety regulations .