Table 29: Cabinet Requirements for the QFX3500 Device (continued)
Guidelines
Cabinet
Requirement
When you mount the device in a cabinet, ensure that ventilation through the cabinet is
sufficient to prevent overheating.
•
Ensure that the cool air supply you provide through the cabinet adequately dissipates the
thermal output of the device (or devices).
•
Ensure that the cabinet allows the chassis hot exhaust air to exit the cabinet without
recirculating into the device. An open cabinet (without a top or doors) that employs hot air
exhaust extraction from the top allows the best airflow through the chassis. If the cabinet
contains a top or doors, perforations in these elements assist with removing the hot air
exhaust.
•
The device fans exhaust hot air through the rear of the chassis. Install the device in the
cabinet in a way that maximizes the open space on the fan tray side of the chassis. This
maximizes the clearance for critical airflow.
•
Route and dress all cables to minimize the blockage of airflow to and from the chassis.
•
Ensure that the spacing of rails and adjacent cabinets allows for the proper clearance around
the device and cabinet.
Cabinet airflow
requirements
RELATED DOCUMENTATION
Clearance Requirements for Airflow and Hardware Maintenance for a QFX3500 Device | 125
Rack Requirements for a QFX3500 Device | 114
Mounting a QFX3500 Device in a Rack or Cabinet | 328
Cabinet Requirements
You can mount the device in a cabinet that contains a 19-in. rack.
Cabinet requirements consist of:
•
Cabinet size
•
Clearance requirements
•
Cabinet airflow requirements
provides the cabinet requirements and specifications.
120
Содержание QFX3500
Страница 1: ...Virtual Chassis Fabric Hardware Documentation Published 2020 11 06...
Страница 225: ...Translation The emitted sound pressure is below 70 dB A per EN ISO 7779 201...
Страница 229: ...205...
Страница 238: ...Unterminated Fiber Optic Cable Warning 214...
Страница 246: ...Restricted Access Warning 222...
Страница 249: ...225...
Страница 257: ...Jewelry Removal Warning 233...
Страница 260: ...Operating Temperature Warning 236...
Страница 271: ...DC Power Disconnection Warning 247...
Страница 275: ...DC Power Wiring Sequence Warning 251...
Страница 278: ...DC Power Wiring Terminations Warning 254...
Страница 408: ...Understanding Virtual Chassis Fabric Configuration 4 Understanding Virtual Chassis Fabric Components 384...
Страница 410: ...Figure 130 All QFX5110 VCF g050760 Figure 131 QFX5110 VCF with QFX5100 24Q Leaf Devices 386...
Страница 412: ...Figure 132 QFX5100 24Q as a Leaf Device in a QFX5110 VCF 388...
Страница 565: ...Table 105 System Information continued Description Field Inventory details 541...
Страница 602: ...6 PART Troubleshooting Restoring Junos OS 579 Returning Hardware 586 Alarms and System Log Messages 623...