7073135320

7073135320



S Basics of Tele-Communication Stroger Switching System Crossbar Switching Space Division Switching Time Division Switching ISDN Help Exit

S Basics of Tele-Communication Stroger Switching System Crossbar Switching Space Division Switching Time Division Switching ISDN Help Exit

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Stroger Switching Components

Uniselector

A selector starts in the 'home' position and with each 'impulse' the wiper contacts would progress round the output bank to the next position. Each output would be connected to a different subscriber, thus the caller could connect to any other subscriber who was connected to that bank, without any manuał assistance from an operator.

the selector has 10 outputs, so a caller can choose to connect to any of 10 different subscribers by dialling any digit from 1 to 0 (0=10). This sort of automatic selector is known as a Uniselector, as it moves in just one piane (rotary).




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