Alcatel-Lucent 6850-48 ハードウェアマニュアル

OmniSwitch 6850 Series Chassis and Hardware Components

Mounting the Switch

OmniSwitch 6850 Series Hardware Users Guide

page 2-59

Blank cover panels are provided with your switch and are used to cover empty backup power supply bays 
and 10 Gigabit uplink bays (all OmniSwitch 6850 Series switches, except for OmniSwitch 6850-24, 
OmniSwitch 6850-P24, OmniSwitch 6850-48, and OmniSwitch 6850-P48). These cover panels play an 
important role in chassis airflow and temperature management. They also protect the switch’s processor 
board and other sensitive internal switch components from physical damage by closing off the chassis.

When blank cover panels are missing, air does not take the direct route from the air intake vent, through 
the chassis, and then out through the fan exhaust vents

 

(see

 

). Instead, a portion of the airflow is 

allowed to be drawn in through the rear of the chassis. As a result, normal airflow is disrupted and an extra 
task is placed on the fans to cool the chassis. 

If your switch is not equipped with a backup power supply connection or 10 Gigabit uplink, and blank 
cover panels are not installed over empty bay locations, airflow is adversely affected. Since they regulate 
airflow and help protect internal chassis components, blank cover panels should remain installed over 
empty bays at all times.