Chapter 4

Signaling Formats, Multiplexing, and Digital Transmissions

The conversion of analog signals to a digital format, as discussed in Chapter 3, gave the telecommunications world a new delivery mechanism that opened the door to new and far-reaching technologies. These new technologies could not have been imagined when 1s and 0s started pulsing down copper wires. From cellular data and telephony applications to packets of data moving across the Internet, all have their roots in digital signaling applications.

Understanding the process of conversion previously discussed helps one understand the process of delivering the data from one location to another. The term data is used in a broad sense because all voice conversations through core ...

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