Matching Pairs Digital Data Communication Online version Techniques and Multiplexing by Aidora Abdullah 1 Example of half-duplex transmission 2 3 Sending data from one particular device to another, and measured in bits. 4 Multiplexing technique to transmit analog signals. 5 6 7 The layer in the OSI reference model which is the junction for multiplexing and demultiplexing. 8 Demultiplexing delivers received segments at the receiver side to this layer in the OSI reference model. 9 Uses of parallel transmission 10 11 Example of duplex transmission 12 Wavelength division multiplexing (WDM) 13 Bits are sent consecutively over a single wire. 14 The form that data travels in digital devices. 15 The 4-tuple to identify a TCP socket in connection-oriented multiplexing and demultiplexing 16 Bits are sent simultaneously over a number of lateral wires. 17 Example of simplex transmission 18 Uses of serial transmission 19 Time Division Multiplexing 20 Disadvantages of parallel transmission source IP address source port number destination IP address destination port number Transport Layer Example of connectionless multiplexing and demultiplexing parallel transmission Demultiplexing Integrated circuits, busses, connecting internal hard disk to a CPU. Data can be lost, receiving device has to reorder data, crosstalk. Frequency Division Multiplexing (FDM) serial transmission Long range transfers, almsot all external components connected to another device, connecting a phone/keyboard/printer to a laptop. Uses light signals transmitted through fiber optic channels whereby very narrow bands of light are combined from several sources to make a wider band of light. Multiplexing Application layer Takes data stream from one high-speed line and breaks into portions and sends over several lower-speed lines simultaneously. Data transmission
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