Figure 130: Airflow Through The Front Card Cage And Powerhouse; Figure 131: Airflow Through The Rear Card Cage - Juniper QFabric QFX3000-G Hardware Documentation

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Figure 130: Airflow Through the Front Card Cage and Powerhouse

The air intake to cool the rear card cage is located on the front sides of the chassis.

Cool air is pulled in through the side fan trays. Hot air exhausts from the Control Boards

and rear cards.

If you are mounting the device on a rack or cabinet along with other equipment, ensure

that the exhaust from other equipment does not blow into the intake vents of the

Leave at least 24 in. (61 cm) both in front of and behind the switch. Allow at least 6 in.

(15.2 cm) of clearance on each side of the chassis. Leave adequate space at the front

of the switch for service personnel to remove and install hardware components. NEBS

GR-63 recommends that you allow at least 30 in. (76.2 cm) in front of the rack or

cabinet and 24 in. (61 cm) behind the rack or cabinet. See

Chapter 10: Rack and Cabinet Requirements

Figure 132 on page

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