Router Clearance Requirements; Router Cooling And Airflow Requirements - Juniper MX204 Quick Start Manual

MX204 3D Universal Edge Router Quick Start

Router Clearance Requirements

Router Cooling and Airflow Requirements

6
For the cooling system to function properly, the airflow around the chassis must be
unrestricted. You must allow sufficient clearance around the installed chassis for cooling
and maintenance.
If you are mounting an MX204 in a rack with other equipment, ensure that the exhaust
from the other equipment does not blow into the intake vents of the MX204 chassis.
For service personnel to remove and install hardware components, and to accommodate
the interface and power cable bend radius, there must be adequate space at the front
and rear of the router. Allow at least 24 in. (61 cm) space in the front and rear of the
router. See Figure 5 on page
Figure 5: Clearance Requirements for Airflow and Hardware Maintenance
for the MX204
The router has front-to-back or airflow out (AFO) cooling system. Air is pulled through
the front of the chassis toward the fan tray, from where it is exhausted out of the
system. The power supplies are self-cooling and are located in the rear of the router.
For the cooling system to function properly, the airflow around the chassis must be
unrestricted. Allow at least 6 in. (15.2 cm) of clearance between side-cooled routers.
Allow 2.8 in. (7 cm) between the side of the chassis and any non-heat-producing
surface such as a wall.
The power supplies are self-cooling and are located in the rear of the router. The
exhaust for the power supplies are also located on the rear of the chassis.
The rack or cabinet must have an adequate supply of cooling air. See
Figure 6 on page 7.
6.
Copyright © 2018, Juniper Networks, Inc.