The JBX88239 ST/ST duplex singlemode fiber patch cable represents professional-grade connectivity for demanding network environments. At 40 meters in length, this cable bridges significant distances while maintaining signal integrity essential for modern telecommunications and data center applications. Technical Excellence: Constructed with 9/125 singlemode fiber core and G.657.A1 glass specification, this cable minimizes signal degradation. With attenuation specifications of 0.25 dB/km at 1310 nm and 0.35 dB/km at 1550 nm, it supports both traditional and modern wavelength requirements. The ≤0.35dB insertion loss and ≥20dB return loss exceed industry standards, ensuring clean signal transmission over extended distances. Compliance & Standards: TAA compliant and manufactured according to ANSI/TIA/EIA-455-171-A-2001 standards, this cable meets rigorous government and enterprise procurement requirements. RoHS/ELV directive compliance ensures environmentally responsible manufacturing. Available with 90-day limited warranty. Design Features: The vibrant red jacket provides superior cable identification in complex installations, reducing deployment errors and maintenance time. Type A to B crossover polarity configuration accommodates standard duplex patch cord applications. OFNR riser-rated jacketing permits installation in building plenum spaces while maintaining fire safety standards. The compact 1.8mm diameter enables efficient cable routing and space optimization. Applications: Ideal for data center backbones, telecommunications infrastructure, enterprise network buildouts, and any application requiring reliable singlemode fiber connectivity. The 40-meter length suits medium to long-distance runs between network equipment. Shipping & Support: Enjoy free standard shipping on orders exceeding $99. Ships from multiple US locations for rapid delivery. Custom lengths available for specialized requirements.