interlock
FEATURE OF AN ENGINEERED SYSTEM THAT TIES TOGETHER SYSTEM ELEMENTS' STATES TO PREVENT THEM FROM CHANGING IN A HAZARDOUS OR INCOMPATIBLE WAY
Hardware interlocks; Interlock; Defeatable interlock
interlock v. 1) соединять(ся), сцеплять(ся); смыкаться 2) tech. блокировать