{"L1_core": {"type": "cat6", "domain": "networking", "category": "cable", "subcategory": "twisted_pair"}, "L4_features": ["10gbase_t_short", "central_spline", "reduced_crosstalk"], "L3_standards": ["TIA/EIA-568-B.2-1", "ISO/IEC 11801 Class E"], "L2_performance": {"awg": 23, "pairs": 4, "speed_gbps": 10, "frequency_mhz": 250, "max_distance_m": 100, "max_distance_10g_m": 55}}