2-6
4.
Orient the power module with its power receptacle at the right. Holding the handle of the module
with one hand and supporting the module bottom with the other, slide the power module slowly
into the slot along the guide rails.
Figure2-7 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.
•
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.
•
If one fan tray fails during the device operation, replace the fan tray immediately and keep the fan
tray in the slot before the replacement. If both fan trays fail, replace one fan tray first immediately.
Replace the other fan tray after the new fan tray operates correctly. Do not remove the two fan
trays at the same time, or the device will be powered off.
The device 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 installs a FAN-20B-2-A fan tray.
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.