The JBX42575 3-meter ST/APC to FC/APC duplex singlemode fiber patch cable is engineered for demanding network applications where signal integrity and reliability are paramount. This professional-grade optical connector cable combines precision manufacturing with rigorous quality testing to deliver consistent performance in high-speed data transmission environments. **Key Technical Features:** The cable utilizes a 9/125 singlemode fiber core with G.657.A1 glass fiber composition, specifically designed for long-distance, high-bandwidth applications. With an outside diameter of just 1.8mm and yellow OFNR (Riser Rated) jacketing, the cable offers space efficiency without compromising durability. The Type A to B crossover polarity configuration is the industry standard for duplex patch cords, ensuring compatibility with most network equipment. **Performance Specifications:** Tested in accordance with ANSI/TIA/EIA-455-171-A standards, this cable delivers exceptional optical performance. Insertion loss measures ≤0.35dB with typical performance of 0.15dB, while return loss exceeds 20dB for minimal signal reflection. Attenuation specifications of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm ensure reliable transmission across standard operating wavelengths. **Compliance and Quality:** Fully TAA compliant and manufactured to RoHS/ELV standards (EU directive 2002/95/EC), this cable meets stringent regulatory requirements for government and enterprise procurement. The 90-day limited warranty provides peace of mind for your network infrastructure investment. **Applications:** Ideal for telecommunications facilities, data centers, FTTx deployments, and enterprise network backbones. The duplex configuration supports simultaneous bidirectional communication, making it essential for full-duplex network operations. **Convenient Custom Options:** While this 3-meter configuration suits standard rack-to-distribution cabinet distances, custom lengths are available to match your specific installation requirements. **Shipping and Availability:** Qualifies for free standard shipping on orders exceeding $99, with fulfillment from multiple U.S. locations (Danville CA, Fort Worth TX, and Beaufort SC) for rapid delivery.