Wideband data on t1 carrier

The T1 carrier repeatered line is the Bell System's first high-speed digital transmission facility. Although developed primarily for the transmission of analog information in the form of processed voice frequency signals, its potential use as a short-haul data facility has stimulated considerable interest and study. T1 carrier data terminal designs are described for various general types of applications, and consideration is given to certain problems concerning the transmission of data-type signals over the repeatered lines. The applicability of the present design is developed with relation to the short-haul plant.