Figure 130: Aligning The At-Fan08 Module In The Chassis Slot; Figure 131: Seating The At-Fan08 Module On The Connector In The Chassis - Allied Telesis AT-SB*908 GEN2 Installation Manual
Advanced layer 3 plus modular switch, alliedware plus v5.4.8-0, virtual chassis stacking, chassis, ethernet line card, fan module, ac/dc power supply