Other Vintage Telephone
Switching Systems of Note

 

Information on other vintage electro-mechanical telephone switching of note.

North Electric CX-100 All Relay Switch

An all-relay central office is somewhat of a hybrid of a step-by-step and a crossbar office that used mechanical relays instead of crossbars or mechanical wipers. These switches only used for very small central offices. One company of note who made all-relay central office switches was North Electric of Gallion, Ohio (again, not to be confused with Northern Electric of Canada). The CX-100 and CX-1000 (100 and 1000 subscribers respectively) models were used in a limited degree in the public network.

 

North Electric CX-100 switch at the Museum of Communications


Other Vintage Telephone Switching System Pages

Step by Step (Strowger) Switching Systems
Western Electric Panel Switching Systems
Western Electric Crossbar Switching Systems
North Electric Crossbar Switching Systems
Other Vintage Switching Systems of Note
Historic Number 4 Crossbar (#4XB) List


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Page last modified December 20, 2008
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