- play_arrow Fast Track: Initial Installation
- play_arrow Site Planning, Preparation, and Specifications
- play_arrow Initial Installation and Configuration
- play_arrow Maintaining Components
- play_arrow Troubleshooting Hardware
- play_arrow Contacting Customer Support and Returning the Chassis or Components
- play_arrow Safety and Compliance Information
- General Safety Guidelines and Warnings
- Definitions of Safety Warning Levels
- Qualified Personnel Warning
- Warning Statement for Norway and Sweden
- Fire Safety Requirements
- Installation Instructions Warning
- Chassis and Component Lifting Guidelines
- Restricted Access Warning
- Ramp Warning
- Rack-Mounting and Cabinet-Mounting Warnings
- Grounded Equipment Warning
- Radiation from Open Port Apertures Warning
- Laser and LED Safety Guidelines and Warnings
- Maintenance and Operational Safety Guidelines and Warnings
- General Electrical Safety Guidelines and Warnings
- Prevention of Electrostatic Discharge Damage
- Site Electrical Wiring Guidelines
- AC Power Electrical Safety Guidelines
- AC Power Disconnection Warning
- DC Power Disconnection Warning
- DC Power Grounding Requirements and Warning
- DC Power Wiring Sequence Warning
- DC Power Wiring Terminations Warning
- Multiple Power Supplies Disconnection Warning
- TN Power Warning
- Action to Take After an Electrical Accident
- Compliance Standards for ACX7024 Routers
- Compliance Standards for ACX7024X Routers
- Compliance Statements for NEBS
- Compliance Statements for EMC Requirements
- Compliance Statements for Environmental Requirements
Cooling System and Airflow in ACX7024 and ACX7024X Routers
The cooling system in an ACX7024 and ACX7024X router consists of six system fans. When a system fan (single or multiple) fails, a chassis alarm is raised and the fan(s) need to be replaced. In case of a single fan failure, the router continues to operate with the remaining fans according to GR-3108 specifications. However, if multiple fans fail, it requires immediate replacement of the fans.
The system fans in an ACX7024 and ACX7024X router are fixed and cannot be replaced at your site. You must return the router to Juniper Networks for repair or replacement of the fans (see Returning an ACX7024 or ACX7024X Chassis or Components).
1 — System fans |
The ACX7024 and ACX7024X routers support only front-to-back airflow (airflow out or AFO). In AFO models, the device pulls in airthrough the front of the chassis toward the system fans, from where it exhausts the air out of the chassis. Figure 2 shows the airflow direction in an ACX7024 and ACX7024X router.
Leave at least 6 in. (15.2 cm) clearance each at the front and rear of the chassis for airflow and to accommodate the interface and power cable bend radius.
