Question: what is the maximum length of a standard rs-232 cable
[{'answer': '15 meters', 'provenance': [{'wikipedia_id': '26023', 'title': 'RS-232', 'start_paragraph_id': 39, 'start_character': 523, 'end_paragraph_id': 39, 'end_character': 532, 'bleu_score': 1.0, 'section': 'Section::::Role in modern personal computers.\n'}]}, {'provenance': [{'wikipedia_id': '26023', 'title': 'RS-232', 'start_paragraph_id': 39, 'start_character': 0, 'end_paragraph_id': 39, 'end_character': 597, 'bleu_score': 0.8109014192353191, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12463448994421317015}, 'section': 'Section::::Role in modern personal computers.\n'}]}]