(connector) A connecting device into which a plug can be inserted to make
circuit connections.
jacket
(component) A rubber or synthetic covering applied over the primary
insulation, braids, shields, cable components, or over the cable itself.
jackscrew
(connector/accessory) A mechanical fastening device (one or two per
connector) used to draw mating connectors together and to separate them.
Includes a threaded screw on one connector that engages a threaded bushing
on the mating connector.
JAN specification
(abbreviation) Joint Army-Navy specification.
Jones block
(general) Jones is the name of the originator of barrier blocks. The term
“Jones block” is sometimes erroneously used to describe terminal strips and
barrier blocks in general.
jumper
(printed circuit) A direct electrical connection, which is not a portion of
the conductive pattern, between two points on a printed circuit.
Jumper Cable
A short flat cable interconnecting two wiring boards or devices.
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