Câu 23: EXIN-CDCP: EXIN EPI Certified Data Centre Professional

An optical fiber cable comes with the specifications 50/125 um. What do the numbers represent?

1. A. The first number represents the distance for a 10 Gb/s connection; the second number represents the distance for a 1 Gb/s connection.
2. B. The first number represents the diameter of the core; the second number represents the diameter of the cladding in microns. — đáp án hiện tại
3. C. The first number represents the diameter of the core; the second number represents the actual diameter cable including the buffer and jacket.
4. D. The first number represents the required distance to single-phase power cabling; the second number represents the required distance to three-phase cabling.