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Figure 10 Installing an AC power module
Installing a fan tray
CAUTION:
•
Before installation, make sure the airflow direction provided by the fan tray meets the
requirements for installation ventilation.
•
The device comes with both fan tray slots empty. To ensure good ventilation, you must install two
fan trays of the same model before powering on the device.
•
If both fan trays fail during operation, replace the failed fan trays one by one within 1 minute.
•
If a fan tray fails during operation, replace the fan tray as soon as possible and keep the failed fan
tray in place before replacing it.
•
To prevent damage to the fan tray and the connectors on the backplane, insert the fan tray gently.
If you encounter any resistance while inserting the fan tray, pull out the fan tray, re-orient it, and
then insert it again.
The firewall supports FAN-20B-2-A and FAN-20F-2-A fan trays. The installation procedure for the
FAN-20B-2-A and the FAN-20F-2-A is the same. This section uses the FAN-20B-2-A as an example.
To install a fan tray:
1.
Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2.
Orient the fan tray with the "TOP" mark on the top, grasp the fan tray handle with one hand, and
support its bottom with the other hand. Slide the fan tray along the guide rails into the slot until it
has a firm contact with the backplane.