The fan tray assembly modules contain the axial fans for cooling the cabinet power supply modules. In addition, the two NMB blowers are in charge of generating forced air cooling needed for the case components inside the telecom cabinet. The fans are placed strategically in the fan tray for forcing cool air directly up to the power supply unit. Fresh air will be taken in through the designated intake location in the telecom cabinet, and pushed by the axial fans through the heat sources and out the controller box area.