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d) (4 marks) (i) What is Multi-Level Transmit 3 (MLT-3) coding as used in 100 Mbps Ethernet (100BASE-TX)? Explain why Manchester coding was not adopted
d) (4 marks) (i) What is Multi-Level Transmit 3 (MLT-3) coding as used in 100 Mbps Ethernet (100BASE-TX)? Explain why Manchester coding was not adopted for 100Mbps Ethernet. (ii) Explain, using a sketch, what the following signal impairments are and how they are caused in 1000 Mbps Ethernet using unshielded twisted pair (UTP) cable a) Near-End Cross Talk b) Signal Echo.
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