Figure 129: Airflow Through The Qfx3100 Director Device - Juniper QFabric QFX3000-G Hardware Documentation

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QFX3000-G QFabric System Hardware Documentation

Documentation

Clearance Requirements for Airflow and Hardware Maintenance for a QFX3008-I

Interconnect Device

Leave at least 24 in. (61 cm) both in front of and behind the QFX3100 Director device.

For service personnel to remove and install hardware components, you must leave

adequate space at the front and back of the QFX3100 Director device. 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.

Figure 129: Airflow Through the QFX3100 Director Device

Cooling System and Airflow in a QFX3100 Director Device on page 31

When planning the site for installing a QFX3008-I Interconnect device, you must allow

sufficient clearance around the device.

Follow these clearance requirements:

For the cooling system to function properly, the airflow around the chassis must be

unrestricted. Do not block the air intake or exhaust areas shown in

Figure 131 on page

The air intake to cool the front card cage and powerhouse is located below the front

fan tray on the chassis. Hot air exhausts from the powerhouse at the bottom of the

chassis, and above the rear fan tray at the top of the chassis.

Figure 130 on page 247

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