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Advantages: 1: DWDM is suitable for long haul transmission. 2: Data transperancy. 3: Smooth expansion to the network at any node. 4: Multi data transmission network. 5: Less amount of regenerator is used. 6: Easily add/drop two channels of service. Disadvantages: 1: Expensive approach compared to CWDM. 2: Attenaution occured. 3: Amplifiers are used to ...



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