This is one of the most fundamental links used in Dromed. It is the link which generally transmits TurnOn and/or TurnOff messages from one object to another object. There must be a script on the ‘From’ object which sends these messages to the ‘To’ object, such as StdButton, StdLever, TrigDoorOpen, TrigRoomPlayer, or TrigWorldFrob.

A few of the nearly countless possible examples:

• a lever → a turbine
• a button → a secret door
• a door with TrigDoorOpen → a QVarTrap
• a concrete roombrush with TrigRoomPlayer → a Lost City light
• a book with TrigWorldFrob → an Emitter