Allied Telesis AT-9448Ts Installation Manual page 46

Chapter 2: Installing the Hardware
46
Note
Do not remove the blank panel from the chassis until you are ready
to install the module. An open slot allows dust to enter the unit and
can hinder the device's ability to maintain proper airflow and cooling.
2. Unpack the AT-StackXG Stacking Module from its shipping package
and verify that the following items are included in the package:
One AT-StackXG Stacking Module
One AT-StackXG/.5 Stacking Cable
AT-StackXG Stacking Module Installation Guide
Warranty card
Note
Store the packaging material in a safe location. You must use the
original shipping material if you need to return the unit to Allied
Telesis.
3. Align the edges of the module with the guides in the slot and carefully
slide the module into the chassis until it is flush with the back panel of
the chassis, as shown in Figure 10 on page 47. Light pressure may be
needed to seat the module on the connector on the back panel of the
chassis.
Note
Do not force the module into place. Doing so may damage the
connector pins on the backplane inside the chassis. If there is
resistance, remove the module and reinsert it after verifying that the
edges of the card are properly aligned in the guides in the chassis'
expansion slot.