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Technology evolves at a rapid-fire pace. That’s why we’ve built an easy-to-use glossary to help you better understand the terms, technologies and trends that impact your business.


A digital carrier signal that transmits the DS – 1 signal over copper. It is a North American standard It has a data rate of about 1.544 megabits / second. It contains twenty four digital channels and hence requires a device that has digital connection. Over Sonet it is an optical connection.