Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

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Symbols

Inline cable coupler

An inline coupler joins two free cables, with neither half fixed to a panel or device. Typical uses are extension leads, portable equipment feeds and sensor cables with a disconnect point partway along the run. Drawings show both halves floating on the cable line, sometimes with a note that the coupling is located in a particular area.

Drawing use

Schematic

Application

Connections & wiring

Reference family

IEC / IEEE / ANSI

A distinction that matters

An inline coupler joins two free cables; a panel plug and socket has one half fixed to equipment.

Full referenceAdd to legend

PLUG SOCKET

Symbols

Plug and socket connector pair

A plug/socket pair represents a detachable electrical connection with two mating sides. Pin identity and mating references are needed to follow each circuit through the connector.

Drawing use

Schematic

Application

Connections & wiring

Reference family

IEC / Manufacturer

A distinction that matters

A connector pair is different from a permanent wire splice.

Full referenceAdd to legend

Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.