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1-9. A fiber telephone cable contains 144fibers, each capable of carrying 672voice messages. A conducting telephone cable contains 900 copper twisted pairs, and each pair can carry 24 mes-sages. Compare

the capacities of the- fiber and conducting.cables. How many of the conducting cables are required to equal the capacity of the fiber cable?Repeat the calculations if each fiber operates at the DS-4 signaling rate.

Fig: 1