signal board

noun

1. a board for displaying electrically transmitted signals and indicating their source.

Example Sentences

ThinkPad, which sported an external signal board—running Linux, an open-source operating system—dangling off the side.

From The New Yorker

The team owner created an electronic signal board that makes it clear to the driver of the No. 01 car when Montoya is in the other seat.

From Seattle Times

He put his finger on to the bottom button on the right-hand side of the signal board and said to Lennard: "Hold tight now, she's going."

From Project Gutenberg

"But I think it's about time to drop theory and see to the practice," he continued, getting up from his chair and going to the signal board in the conning-tower.

From Project Gutenberg

A small platform, two windows, a door, and the signal board perched high on a pole completed the outfit.

From Project Gutenberg