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7. DATA CONNECTIVITY — AN OVERVIEW
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This part of the AT&T Network and Data Connectivity document explains how to use your communications
system to connect one data communications device or network to another device or network. This chapter,
in particular, defines some basic data communications principles, and it explains the data features that your
communications system offers.
Refer to chapter 1, Introduction to Connectivity, for information on the types of transmission that can be
used to carry data, and the types of trunks and multiplexing available.
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