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Cooling System and Airflow in the SRX1600

The cooling system in the SRX1600 consists of three fans. In addition to the fans, an internal fan in each power supply unit (PSU) also cools the device components.

Fans

The fans in the SRX1600 are hot-insertable and hot-removable field-replaceable units (FRUs). You can install the fans in the fan module slots on the rear of the device.

Figure 1: SRX1600 Fan Module Technical drawing of an air outlet module labeled AIR OUT AFO with honeycomb design, possibly for ventilation. Model 8102093.
Table 1: Physical Specifications of the SRX1600 Fan Modules
Height Width Depth Weight

1.61 in. (4.1 cm)

1.61 in. (4.1 cm)

4.41 in. (11.2 cm)

0.16 lb (74 g)

The SRX1600 firewalls provide front-to-back airflow. The fans modules pull the air toward them from the front of the chassis, and exhaust it through the back of the chassis.

Figure 2: Airflow Through the SRX1600 Chassis Diagram of airflow in a server chassis with green arrows showing cooling air movement from Ports on the left to FRUs on the right.

SRX1600 Fan Module LEDs

You can examine the LEDs next to each fan module to check the status of the fans.

Figure 3: Fan Module LEDs Technical drawing of cooling fans arranged in a row with hexagonal patterns and structural elements visible.
Table 2: Fan Module LEDs
LED Color LED State Description
Green On steadily The fan is operating normally. The system has verified that the module is engaged, that the airflow is in the correct direction, and that the fan is operating correctly.
Red On steadily The system has detected an error in the fan module. Replace the fan module immediately. Either the fan has failed, or it is seated incorrectly.To maintain proper airflow through the chassis, leave the fan module installed in the chassis until you are ready to replace it.