Light Emitting Diode Modules come with an original dismountable ceramic ferrule that allow to incorporate the module on the front panel of a device keeping the access to the front face of the ferrule for cleaning and re-polishing. The Modules work on a wide wavelength ranging from 850nm to 1320 nm with a spectral bandwidth of 35nm to 135nm between half power points. The Modules operate on a temperature ranging from -20° C to 60° C. Light Emitting Diode Modules are ideal for most short and medium distance digital loop transmission applications over multimode fibre.