IPC-A-640, officially titled “Acceptance Requirements for Optical Fiber, Optical Cable, and Hybrid Wiring Harness Assemblies,” provides acceptance criteria for cable and wire harness assemblies that incorporate optical fiber technology. d suppliers of electrical construction services. Standards are what makes technology. The International Electrotechnical Commission (IEC) and the Telecommunications Industry Association (TIA) create detailed rules for fiber optic components, manufacturing, and testing. They use. ANSI/TIA‑568. 3‑E “Optical Fiber Cabling and Components Standard” was developed by the TIA TR‑42. Take a closer look inside our advanced fiber optic production facility — where innovation, precision, and quality come to life.