QTech QSW-6900-56LF Series Hardware Installation And Reference Manual page 10

Installation Manual
1. Product Overview
Figure 1-6 Ventilation and Heat Dissipation of the QSW-6900-56LF
Leave sufficient space in the front and at the back of the chassis (at least 20 cm) for
ventilation.
It requires at least three fan modules to work normally. Filler panels need to be installed in
the unoccupied fan module slots to ensure ventilation and heat dissipation and avoid dusts.
Power modules and fan modules with different air direction cannot be used together.
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