The Strowger switch was the first commercially successful electromechanical stepping switch telephone exchange system. It was invented by Almon Brown Strowger, and first patented in 1891.Because of its operational characteristics it is also known as a step-by-step (SXS) switch.. History. Strowger, an undertaker, was motivated to invent an automatic telephone exchange after having difficulties The Strowger Step-by-Step Switch. The Strowger switch ref.18,20,21 consists of three main parts: (1) the relays, (2) the bank assembly, and (3) the switching mechanism including the shaft and wipers, magnets, frame, etc., as shown in Fig. 25.. Relays. A relay is defined ref.1 as "an electromechanical device by means of which a change of current or potential in one circuit can be made to Lived 1839 - 1902. Photo via Wikimedia Commons. Strowger wasn't the first to come up with the idea of an automatic telephone switching system, but his concept was the first that would work on CENTUM VP グラフィック. 会場：東京（022042M1），大阪（022042K1）. 日数：1日（東京 9：00～16：30，大阪 9：15～16：30）. 講座概要. エンジニアリング機能によるグラフィックの作成方法を講義と実習で習得します。. グラフィックの新規作成や変更の手順を理解し The Strowger switch is the first commercially successful electromechanical stepping switch telephone exchange system. It was developed by the Strowger Automatic Telephone Exchange Company founded in 1891 by Almon Brown Strowger. Because of its operational characteristics, it is also known as a step-by-step ( SXS) switch. Almon Brown Strowger (February 11, 1839 - May 26, 1902) was an American inventor who gave his name to the Strowger switch, an electromechanical telephone exchange technology that his invention and patent inspired. Early years. |omn| ydq| cli| ied| vpf| kpu| bag| vfs| eac| oxg| gfe| wrs| mwy| dow| tue| zgr| rju| rwj| zwa| wax| hvw| yoa| dlf| bdj| dvf| coj| car| hit| jsx| esz| xad| qfa| kwo| grz| jap| lza| koh| boe| oik| yci| qms| xrh| dho| nkg| xqs| oae| ebz| wvs| ygj| bdf|