Gigabit QAM Modulator Model D9479 Hardware Installation and ...
Gigabit QAM Modulator Model D9479 Hardware Installation and ...
Gigabit QAM Modulator Model D9479 Hardware Installation and ...
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Chapter 2 Installing the Dual SFP G<strong>QAM</strong>The 4 RU space at the top is covered with a closed panel. This option uses an exhaustfan located on top of the rack to draw the heated air upward <strong>and</strong> out of the rack. The4 RU space at the top allows the ventilation space needed for the exhaust fan tooperate efficiently. The exhaust fan should be chosen so that a minimum of 600 cubicfeet per minute (cfm) flows through the rack with 2000 cfm being the ideal amount.Example:20 78-745431-01 Rev E
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