The JBX88242 55-meter ST/ST duplex singlemode fiber patch cable represents enterprise-grade connectivity for demanding network environments. Manufactured with precision-engineered components and rigorous quality testing, this cable delivers the performance and reliability required by professional IT infrastructures. Technical Specifications: This singlemode fiber cable features a 9/125 micron core with G.657.A1 glass fiber composition, optimized for long-distance, single-wavelength transmission. The duplex configuration enables simultaneous bidirectional communication through Type A to B crossover polarity architecture, making it ideal for standard network applications without requiring external adapters. Performance Characteristics: With insertion loss rated at ≤0.35dB (typical 0.15dB) and return loss exceeding 20dB, this cable ensures minimal signal degradation and reflection. Attenuation specifications of 0.25 dB/km at 1310nm and 0.35 dB/km at 1550nm meet industry standards for telecommunications wavelengths. All performance metrics are tested in accordance with ANSI/TIA/EIA-455-171-A standards. Construction & Durability: The 1.8mm outside diameter provides flexibility for routing through cable trays and conduit while maintaining structural integrity. Riser-rated (OFNR) jacketing meets fire safety codes for vertical installations in building plenum spaces. The plastic accessory materials and robust ST/UPC connector design ensure long-term reliability in temperature-variable environments. Compliance & Standards: TAA compliant certification makes this cable suitable for government contracts and institutional procurement processes. Full RoHS/ELV directive compliance (EU 2002/95/EC) ensures environmental responsibility. The cable ships from multiple U.S. locations (Danville CA, Fort Worth TX, Beaufort SC) with free standard shipping on orders exceeding $99, backed by a 90-day limited warranty. Applications: Ideal for data center backbone connections, telecommunications infrastructure, campus network links, and long-distance fiber optic installations. The 55-meter length accommodates building-to-building connections, equipment room-to-main distribution frame runs, and specialized networking scenarios requiring extended reach without signal regeneration.