Clearance Requirements for Airflow and Hardware Maintenance for QFX5120 Switches
When planning the site for installing a QFX5120 switch, you must ensure sufficient clearance around the switch.
See Figure 1 for clearance requirements for QFX5120-32C switches.
See Figure 2 for clearance requirements for QFX5120-48T switches.
See Figure 3 for clearance requirements for QFX5120-48Y switches.
See Figure 4 for clearance requirements for QFX5120-48YM switches.
Follow these clearance requirements:
For the cooling system to function properly, ensure that the airflow around the chassis is unrestricted.
If you are mounting the switch on a rack or cabinet along with other equipment, ensure that the hot air exhaust from other equipment does not blow into the cold air intake vents of the chassis.
Leave at least 6 in. (15.2 cm) clearance in front of and behind the chassis for airflow.
Leave at least 6 in. (15.2 cm) clearance on the left of the chassis for installing the grounding lug.
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.
Leave at least 24 in. (61 cm) clearance in front of and behind the switch for service personnel to remove and install hardware components.