As an example, the space switch is integrated with the space control circuitry into a single LSI circuit. The switching system where any channel of one of its incoming PCM highway is connected to any channel of an outgoing PCM highway, where both of them are spatially separated is called the Space Division Switching.
In analog switching, the sampled voltage levels are transmitted as they are whereas in binary switching, they are binary coded and transmitted. Electromechanical crossbar and relay switching systems, as generally used today in telecommunications switching have, for practical purposes, reached the limit of their capabilities.
The time slot counter increments by one, at the end of each clock pulse, the contents of which provide location addresses for data memory and control memory. In space division switching, a dedicated path is established between the calling and the called subscribers for the entire duration of the call.
Specific embodiments representing what are presently regarded as the best modes of carrying out the invention are. Further, physical congestion problems are encountered with entrance cables as they approach the central office, and, many times, there are difficult growth problems in central office main distribution frames.
The incoming and outgoing signals when received and re-transmitted in a different time slot, is called Time Division Switching.
The digitized speech information is sliced into a sequence of time intervals or slots. Time Space Time TST switches are a particularly useful configuration of switching elements providing both time and space translation between channels of Time Division Multiplexed TDM telecommunications …show more content… A further object is to achieve improved reliability and lessened maintenance requirements through use of such TST switch systems using two basic modules.
In time division switching, sampled values of speech signals are transferred at fixed intervals.