Pulse Secure MAG2600, Руководство по оборудованию

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MAG Series Pulse Secure Gateways Hardware Guide
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Power supplies are installed at the rear of the chassis in slots labeled 0 and 1 for the MAG6610 and MAG6611.
Each AC power supply weighs approximately 3 lb (1.3 kg) and has an independent 12 A rated AC appliance
inlet on its front. Each inlet requires a dedicated AC power feed. Each AC power supply has a fan, a bicolor
LED on the faceplate that indicates the status of the power supply, and a colored ejector lever.
Figure: MAG6611 With a Single AC Power Supply
Each AC power supply has an ejector lever that holds the power supply in place. The ejector lever locks into
the corresponding hole in the chassis on the left side of the AC appliance inlet.
Each AC power supply comes with a power cord retainer that holds the power cord in place.
Each power supply has its own fan and is cooled by its own internal cooling system. The airflow for a power
supply is from the front of the power supply to the back.
Cooling System and Airflow in the MAG6610 and
MAG6611
The cooling system in a Pulse Secure Gateway MAG6610 or MAG6611 consists of one or more fan trays. Each
fan tray contains two fans. All fans and fan trays are a hot-insertable and hot-removable field-replaceable
unit (FRU).
You remove and replace the fan tray from the rear of the chassis.
The Pulse Secure Gateway continues to operate for a limited time (15 seconds) during the replacement of
the fan tray without thermal shutdown. The fan tray provides front-to-back airflow. The air intake to cool the
chassis is located on the front of the chassis. Air is pulled into the chassis and pushed toward the fan tray.
Hot air exhausts from the rear of the chassis.
Temperature sensors in the chassis monitor the temperature in the chassis. The fan tray used in the
Pulse Secure Gateway comes with load-sharing redundancy that can tolerate a single fan failure at room
temperature (below 113° F/45° C) to continue to provide sufficient cooling.
Under normal operating conditions, the fans in the fan tray run at less than full speed. If a fan fails or the
ambient temperature rises above the threshold 113 °F (45 °C), the speed of the remaining fans is automatically
adjusted to keep the temperature within the acceptable range, 32 °F (0 °C) through 113 °F (45 °C).