Allied Telesis AT-PWR06 User Manual

Stack Installation Guide for AT-2552XS L2 Data Center Switch

19

The AT-DC2552XS L2 Data Center Switch physical description is as 
follows:

The front panel of the AT-DC2552XS is shown in Figure 1 on page 19.

Figure 1. AT-DC2552XS Front Panel View



Blank Covers - When the switch is shipped from the factory, four 
blank covers are installed.
-

Two blank covers for the power supply slots (PS 1/PS 2)

-

Two blank covers for the two fan module slots (FAN 1/FAN 2)

Warning
To insure proper cooling and air flow within the chassis, the blank 
covers should not be removed unless an AT-PWR06 power supply 
module and the AT-FAN06 fan modules are installed in their place.



The power unit slots (PS 1/PS 2) are for the installation of the 
AT-PWR06 power supply module. These slots are located on the 
far right and far left sides of the chassis. 



A second AT-PWR06 power supply module may be installed for 
redundancy, but is not required for normal operation of the switch. 



With a redundant power supply configuration, you can replace one 
of the two power supply modules without turning off the primary 
power supply. Each AT-PWR06 power supply module that is 
installed in the chassis is hot-swappable. Refer to “Installing and 
Replacing AT-PWR06 Power Supply Module” on page 48 for the 
installation procedure.

PS 1 

FAN 1 

FAN 2 

PS 2 

Blank 

Covers

Slot

Slot

Slot

Slot

Fan 1 

LED

Fan 2

LED

[Top of Chassis]