plugboard
Học thuậtThân thiện
Definition
Noun: 1. A manual telephone switchboard: A device, historically used in telephone exchanges, consisting of a board or panel with numerous sockets (jacks). Operators connect these sockets using flexible cables with plugs (patch cords) to establish temporary electrical circuits, typically for routing telephone calls.
Usage Examples
- Noun:
- Before automated switching, every long-distance call required an operator at a plugboard.
- The museum displayed an old telephone exchange with a massive, intricate plugboard.
- Her job was to connect calls by inserting cords into the correct jacks on the plugboard.
Advanced Usage
- Technical/Historical Context: The term is strongly associated with early to mid-20th century telecommunications technology. It is often used when discussing the history of technology, engineering, or telephony.
- The transition from manual plugboard systems to electronic switching revolutionized the telephone network.
Variants and Related Words
- Switchboard: A more general term that can refer to any apparatus for connecting telephone lines, including later automated systems. A plugboard is a specific type of manual switchboard.
- Patch Panel: A modern, related device used in computer networking and audio engineering to manually connect circuits, functioning on a similar principle but typically without operator intervention for each connection.
- Patch Cord / Patch Cable: The flexible cable with a plug on each end used to make connections on a plugboard or patch panel.
Synonyms
- Manual switchboard
- Telephone exchange (manual)
- Jack panel (in specific technical contexts)
Related Idioms or Phrases
- (To be) on the switchboard / (To work) the boards: Idiomatic phrases referring to working as a telephone operator.
- My grandmother worked the plugboard for Bell Telephone in the 1950s.
Noun
- telephone central where circuits are completed with patchcords