What is a system where a DCD is used at the anchor called?

The term used to describe a system where aDevice Control Device (DCD) is positioned at the anchor point is known as a Fixed Break System. In this setup, the DCD serves as a means to manage the descent of the rescuer or the load in a controlled manner, effectively providing a braking mechanism that is fixed in place. This configuration allows for a greater level of stability and control during a rescue operation, as the anchor remains static and secure.

A Fixed Break System typically integrates with other components of a rescue system, ensuring that energy transfer during descent can be efficiently managed. This is especially crucial in maintaining the safety of both the rescuer and the patient, as it reduces the risk of uncontrolled falls or swings.

In comparison, the other options pertain to different configurations or methods which do not utilize a DCD anchored in this manner, and thus, they do not provide the same stabilizing benefits inherent in a Fixed Break System. Options like Mobile Break Systems and Dynamic Break Systems usually refer to configurations where movement or flexibility is involved, which contrasts with the stability of a fixed setup.