A 2.5 Gb/s (OC-48 or STM-16) optical signal with a dispersion tolerance of 1200 ps/nm goes through fiber with 18ps/nm*km of dispersion. How many 15216-DCU-350 equivalents are needed for enough compensation after traveling 100 km?()

A . none B . one C . two D . three E . four

时间:2022-09-10 20:04:18 所属题库:CCNP(642-311)题库

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