Cooling System Description; Srx5800 Services Gateway Cooling System Description; Figure 55: Airflow Through The Chassis - Juniper SRX5800 Hardware Manual

CHAPTER 5

Cooling System Description

SRX5800 Services Gateway Cooling System Description

Copyright © 2015, Juniper Networks, Inc.
SRX5800 Services Gateway Cooling System Description on page 83
The cooling system consists of the following components:
Upper fan tray
Lower fan tray
Air filter tray and air filter
The cooling system components work together to keep all services gateway components
within the acceptable temperature range (see
Figure 57 on page 84, Figure 58 on page
gateway has two fan trays located in the front of the device that install horizontally above
and below the card cage. The fan trays are interchangeable and are hot-insertable and
hot-removable.

Figure 55: Airflow Through the Chassis

The host subsystem monitors the temperature of the device components. When the
device is operating normally, the fans function at lower than full speed. If a fan fails or
the ambient temperature rises above a threshold, the speed of the remaining fans is
automatically adjusted to keep the temperature within the acceptable range. If the
ambient maximum temperature specification is exceeded and the system cannot be
Figure 55 on page 83,
84, and Figure 59 on page
Figure 56 on page 84,
84). The services
83