Breakout boxes are intermediate switching devices for controlling and rerouting interface lines and signals. This allows interface signals to be activated, deactivated, interconnected or crossed over according to requirements.
This allows non-standard devices to be adapted to a standard environment or, for example, two data terminal equipment (DTE) or data transmission equipment
(DCE) to communicate with each other. Breakout
2 and 3 of the RS-232 interface toallow data traffic
betweentwo DTEs by switching their TX lines to the other RX line.
Breakout cables are an alternative to breakout boxes.