The JBX88335 70-meter ST/ST duplex singlemode fiber patch cable represents industrial-standard connectivity for mission-critical network environments. Engineered with precision-manufactured 9/125 singlemode fiber, this cable delivers superior long-distance signal transmission capabilities essential for telecommunications infrastructure, data center interconnects, and enterprise backbone networks. **Core Specifications:** Featuring dual ST/UPC connectors in duplex configuration, this cable supports Type A to B crossover polarity—the industry standard for most duplex patch cord applications. The 9/125 micrometer core with G.657.A1 bend-insensitive glass fiber provides excellent macrobending performance while maintaining full compatibility with existing singlemode installations. The 1.8mm outer diameter enables efficient cable management and routing through standard conduit systems. **Performance Metrics:** Tested to ANSI/TIA/EIA-455-171-A standards, this cable achieves insertion loss of ≤0.35dB (0.15dB typical) and return loss ≥20dB, ensuring minimal signal degradation over extended runs. Attenuation specifications of 0.25 dB/km at 1310nm or 0.35 dB/km at 1550nm provide reliability across telecom wavelengths critical for both legacy and modern DWDM systems. **Environmental & Compliance Features:** OFNR (Optical Fiber Non-conductive Riser) rated jacketing permits installation in vertical building spaces without conduit protection. Full TAA compliance ensures eligibility for government contracting and procurement programs. RoHS/ELV directive compliance and EU certification demonstrate commitment to environmental standards. **Applications:** - Data center uplinks and cross-connects - Telecommunications facilities - Campus backbone networks - CWDM/DWDM multiplexer connections - Long-distance network extensions - Passive optical network (PON) deployments **Quality Assurance:** Backed by a 90-day limited warranty and available in custom lengths for specialized installations. Ships from strategically located U.S. facilities (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders exceeding $99. Manufactured to specification across Taiwan, U.S., and China facilities using consistent quality standards.