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SRX5600 Services Gateway Cooling System Description
The cooling system consists of the following components:
- Fan tray
- Air filter
The cooling system components work together to keep all services gateway components within the acceptable temperature range (see Figure 15, Figure 16, and Figure 17 ). The device has one fan tray and one air filter that install vertically in the rear of the device. The fan tray contains six fans.
The air intake to cool the chassis is located on the side of the chassis next to the air filter. Air is pulled through the chassis toward the fan tray, where it is exhausted out the side of the system. The air intake to cool the power supplies is located in the front of the device above the craft interface. The exhaust for the power supplies is located on the rear bulkhead power supplies.
Figure 15: Airflow Through the Chassis
The host subsystem monitors the temperature of the services gateway 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 adequately cooled, the Routing Engine shuts down the system by disabling output power from each power supply.
Figure 16: Fan Tray
Figure 17: Air Filter
