A personal fall arrest system is made up of a combination of fall protection components. The first component is the vertical lifeline (VLL), which is typically composed of a rope of various materials, lengths and end terminations. When a VLL is combined with connectors, a shock absorbing lanyard (SAL), a fall arrestor (rope grab) and a counter weight, it becomes a fall arrester connector subsystem (FACSS). A FACSS, combined with an anchorage and full body harness, form a personal fall arrest system (PFAS). This assembly of components and subsystems is what is used to arrest a person during a fall event.