The Fiber Test Box offers you the optimal solution to use fiber optics for simulations, tests and demo applications in an efficient and space-saving way. A sample display for cables is an essential diagnostic tool used to evaluate the integrity, connectivity, and performance of various types of cables in communication, networking, and broadcasting systems. These devices come in several specialized forms—handheld, remote control, optical fiber. Whether they are called a launch box, pulse suppressor, or launch cable they all do the same thing. When technicians conduct a quality test to look for fiber optic cable breaks and light loss in your installed network you need to eliminate what is called the "Dead Zone".