In high-precision optical networks, test configurations, and long-range telecommunication lines, choosing the correct fiber jumper is critical to maintaining signal strength. The FC/APC to SC/UPC Single-Mode Simplex Fiber Optic Patch Cable is a specialized, professional-grade jumper engineered to connect different hardware form factors and polishing types seamlessly. Featuring a single high-quality 9/125µm optical strand, this simplex cable provides a reliable connection for laboratory testing setups, CATV infrastructures, and carrier-grade fiber deployments.

Hybrid Connector Engineering for Specialized Hardware

This optical patch cord is designed to bridge two completely distinct mechanical interfaces. On one side, it features an FC (Ferrule Connector) interface, which uses a durable threaded metallic coupling mechanism. This screw-on mechanism is highly valued in high-vibration industrial settings and optical testing labs because it ensures the connector remains perfectly fixed in position. On the opposite side, the cable is terminated with a standard SC (Subscriber Connector) push-pull plastic housing, which allows for quick, tool-free installation into optical distribution blocks and standard patch frames.

High-Isolation Polish Profile: APC matched with UPC

Beyond its mechanical versatility, this fiber cord resolves mismatch issues between different polish profiles. The FC connector is processed with an Angled Physical Contact (APC) polish, which incorporates an 8-degree angle on the ceramic ferrule tip. This design deflects back-reflections into the outer cladding of the glass rather than letting them travel straight back down the core, yielding a high return loss of 60dB or better.

The SC connector features an Ultra-Physical Contact (UPC) machine finish, which creates a dome-shaped endface to maximize physical contact while keeping return loss above 50dB. This configuration makes it highly useful for linking highly sensitive, reflection-isolated laser sources on the APC side to standard distribution networks on the UPC side without needing complex adaptors.

Premium OS2 9/125µm Core and Simplex Build

The internal single-mode core features a standard 9/125 micron thickness, engineered to support broad-spectrum single-mode transmissions across dual windows at 1310nm and 1550nm wavelengths. The simplex design consists of a single optical fiber channel, making it ideal for unidirectional data paths, dedicated testing loops, and applications where space inside routing ducts is limited.

Every cable assembly undergoes automated geometric measurement using advanced interferometers to check the accuracy of the ferrule radius and fiber height. This ensures an exceptionally low insertion loss of 0.3dB or less, delivering reliable out-of-the-box performance for critical data networks.

Technical Specifications

Frequently Asked Questions (FAQs)

Q: Can I plug the green FC/APC end directly into a blue FC/UPC port?
A: No, you cannot. Mating an angled APC ferrule with a flat-polished UPC interface causes high optical signal drop (attenuation) and risks permanently scratching or damaging the delicate glass faces on both connectors. Always ensure your ports match the specific connector polish type.

Q: What are the main benefits of using a threaded metallic FC connector?
A: Threaded FC connectors feature a keyed, screw-on mechanism that locks the connector firmly into place. This completely prevents accidental disconnects or signal shifts caused by physical cable pulling or environmental vibration, making them ideal for laboratory and industrial setups.

Q: What is the primary difference between Simplex and Duplex fiber patch cords?
A: A Simplex cable contains a single strand of optical glass, which carries data in one direction or handles single-strand bidirectional transmission over specific wavelengths. Duplex cords, such as our SC/APC duplex patch cords and SC/UPC to LC/UPC duplex cables, contain two separate parallel strands, allowing for dedicated simultaneous upstream and downstream data pathways.

Q: Can this single-mode cable be deployed within high-speed CATV networks?
A: Yes, the FC/APC end is optimized with a high return loss rating (≥ 60dB), which makes it highly effective for CATV, video distribution, and high-frequency RF over fiber systems (or integrated alongside armored fiber backbones) where back-reflections can cause noticeable screen noise or signal interference.