15
Figure 18 Connecting the grounding cable to a grounding strip
(1) Hex nut
(2) Ring terminal
(3) Grounding post
(4) Grounding strip
Installing and removing a fan tray
CAUTION:
•
Do not power on the switch unless all fan tray slots are installed with a fan tray.
•
Install fan trays of the same model on the switch.
•
Make sure all slots have a fan tray or filler module installed when the switch is operating.
•
If more than one fan tray fail during the switch operation, replace the faulty fan trays one by one
and finish replacing a fan tray within three minutes.
Installing a fan tray
CAUTION:
To prevent damage to the fan tray or the connectors on the backplane, insert the fan tray gently. If
you encounter a hard resistance while inserting the fan tray, pull out the fan tray and insert it again.
Select appropriate fan trays as needed. For the optional fan trays and their specifications, see "
."
To installing an X721 front-to-back fan tray or X722 back-to-front fan tray:
1.
Wear an ESD wrist strap and make sure it makes good skin contact and is reliably grounded.
2.
Unpack the fan tray and verify that the fan tray model is correct.
3.
Orient the fan tray with the "TOP" mark on the top. Grasp the handle of the fan tray with one
hand and support the fan tray bottom with the other, and slide the fan tray along the guide rails
into the slot until the fan tray is fully seated in the slot and has a firm contact with the backplane.
