• Huawei SmartAX MA5603T multi-service access module which can be used as the medium-capacity gpon olt, ip deslam and msan.
• The MA5603T has a fan tray at the left. The service subrack is installed in the cabinet through the mounting brackets                                                           

Heat dissipation

The fan tray is at the left of the service subrack and blows air for heat dissipation of the service subrack. The cool air flows to the subrack from the left of the subrack and then is exhausted from the right of the subrack after passing the boards.

Monitoring

The fan tray is configured with a fan monitoring board. The fan monitoring board transmits speed adjustment signals to the fan tray, collects the rotating speed signals of the fans, and reports the rotating speed signals to the control board.

Speed adjustment

The rotating speed of the fans can be adjusted according to the detected temperature automatically or be adjusted by software manually.