Panel Machine Switching System: Difference between revisions

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	The '''Panel Machine Switching System''' was a common control switching system developed by Western Electric. It was first introduced in semi-mechanical trial form in the Mulberry office in Newark, NJ. It was then installed and used by customers in Omaha, Nebraska in 1922.		The '''Panel Machine Switching System''' was a common control switching system developed by Western Electric. It was first introduced in semi-mechanical trial form in the Mulberry office in Newark, NJ. It was then installed and used by customers in Omaha, Nebraska in 1922. It went on to be installed in many major cities in the United States, serving 3.6 million lines by 1952.