Editing Cord circuit

{{Short description|Switchboard circuit}}

In [[telecommunications]], a '''cord circuit''' is a [[telephone switchboard|switchboard]] [[Electronic circuit|circuit]] in which a plug-terminated cord is used to establish connections manually between [[User (telecommunications)|user]] lines or between trunks and user lines. A number of cord circuits are furnished as part of the switchboard position equipment. The cords may be referred to as front cord and rear cord or trunk cord and station cord. In modern cordless switchboards, the cord-circuit function is switch operated and may be [[Computer program|programmable]].

In early and middle 20th century [[telephone exchange]]s this task was done by a supervisory relay set known variously as [[junctor circuit]] or [[district junctor]].  Later designs made it a function of the trunk circuit or absorbed it into software.

==See also==
*[[Switched loop]]

==References==
*{{FS1037C MS188}}

[[Category:Telephony equipment]]


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