lineswitches
nounUK /ˈlaɪnˌswɪtʃɪz/
US /ˈlaɪnˌswɪtʃɪz/
Line switches are little switches that turn a phone line or a computer connection on or off.
The technician checked the lineswitches in the cabinet to find out why the phone was dead.
OTHER MEANINGS
2. Switches used in railway signalling to change a train from one track line to another.
The old signal box still had rows of lineswitches for the branch line.
3. In computing, switches that select between different data or communication lines.
The network engineer labeled each of the lineswitches before the upgrade.
4. Devices that connect or disconnect a power line in electrical systems.
Safety rules require all lineswitches to be locked off before maintenance.