Everything about Cord Circuit totally explained
In
telecommunication, a
cord circuit is a
switchboard circuit in which a plug-terminated cord is used to establish connections manually between
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
programmable.
Source: from
Federal Standard 1037C and from
MIL-STD-188
In early and middle 20th century
telephone exchanges 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.
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