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". When testing fiber optic cable with an Optical Time Domain Reflectometer (OTDR), these launch boxes eliminate the "Dead Zone". Without a launch box it is difficult to measure the relative loss at the near end and far end of the patch panel connections.
