Receptacle assembly including a receptacle housing having a front end, a back end, and an elongated module cavity that extends between the front and back ends. The receptacle assembly also includes a communication connector that is positioned to mate with a pluggable module when the pluggable module is inserted into the module cavity. The receptacle assembly also includes a light source that is positioned proximate to the port opening and supported by the receptacle housing. The light source generates light signals that are viewable at the front end. The receptacle assembly also includes a flexible cable coupled to the light source. The light source generates the light signals based on electrical current received through the flexible cable.