The Marine Engine Telegraph System is a vital and mandatory communication device on the bridge of any vessel. Its primary function is to transmit clear, unambiguous speed and directional commands (e.g., "Full Ahead," "Stop," "Astern") from the navigating officer to the engine room. Modern systems feature synchronized transmitter and receiver units with both visual indicators and audible alarms, ensuring immediate and error-proof acknowledgment. As a critical safety component, it provides a fail-safe link for ship maneuvering, especially during docking, narrow waterways, or emergencies, and is required to comply with international maritime regulations.