Time division switching network using time slot interchangers

摘要

A time division network using time slot interchangers for interfacing between groups of terminal circuits and a time division highway and for interfacing between different time division highways. All interchangers are of uniform construction and each performs a conversion from one number of channels at one end to a greater number of channels at the other end. When highways of the same number of channels are to be interconnected, two interchangers are arrayed between the highways in series with the one end of the respective interchangers coupled together.