Inserting The Device - NEC Direction SP E-Series Reference Manual

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If you are installing a device in an accessible slot, go to step 6.
Otherwise, continue to step 7.
6. To install a 3 1/2-inch device in an accessible slot:
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Remove the plastic blank panel from the selected slot by pressing the
panel tab inward and swinging the blank panel out (see the following
figure).

Inserting the Device

Option Installation 3-21