H3C S6520X-EI Series Installation Guide

2-15
2. Unpack the fan tray and verify that the fan tray model is as required.
3. Orient the fan tray with the TOP mark facing up.
4. Align the fan tray with the fan tray slot. Holding the fan tray handles, slide the fan tray into the
slot along the guide rails. Make sure the fan tray is fully seated in the slot and has a firm contact
with the backplane.
To prevent damage to the fan tray or the connectors in the chassis, 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.
Figure2-13 Installing a fan tray
IMPORTANT:
•
In versions earlier than Release 6326 (not inclusive) or Release 65xx versions earlier than
Release 6525 (not inclusive), you must use the
fan prefer-direction command to
set the
preferred airflow direction of the switch to be consistent with that of the fan trays
at the first time
you log in to the switch. If the fan trays have a different airflow direction than the preferred one,
the system outputs traps and logs. By default, the preferred airflow direction of the switch
is from
port side to the power supply side, the same as that of the LSWM1FANSCBE
fan tray. For more
information about the fan prefer-direction
command, see the configuration guides and
command references for the device.
•
In other versions, the switch does not check the preferred airflow direction at system start. You
only need to ensure consistent airflow directions of all fan trays on the switch. If the airflow
directions of the fan trays are inconsistent, the system outputs traps and logs.
Removing a fan tray
WARNING
!
•
To avoid bodily injury, disturbing the dynamic balance of the fan tray, and causing loud noises, d
o
not touch the rotation axis, or any bare wires, fan blades, or terminals on the fan tray.
•
Do not place the fan tray in a moist place. Prevent liquid from entering the fan tray.
•
Fan trays with faulty internal wiring and conductors require maintenance from maintenance
engineers. Do not disassemble the faulty fan trays.
To remove a fan tray:
1. Wear an ESD wrist strap. Make sure the strap makes good skin contact and is reliably
grounded.
2. Holding the fan tray handles, pull the fan tray slowly out of the slot along the guide rails.
3. Put the removed fan tray in an antistatic bag.

H3C S6520X-EI Series Specifications

General

Brand	H3C
Model	S6520X-EI Series
Category	Switch
Language	English