3Com Dual DSX-1 Getting Started Manual page 12

2-4 C 2: I
HAPTER NSTALLATION
6 Use a flat-head screwdriver to tighten the screws on the front panel.
7 Cover any unused chassis slots with safety panels.
8 Install the Network Application Card (NAC) corresponding to this NIC.
Refer to the NAC's Getting Started Guide for more information.