3Com Dual E3 Asynchronous Getting Started Manual page 12

2-4 C 2: I
HAPTER NSTALLATION
5 Use a flat-head screwdriver to tighten the screws on the front panel.
6 Cover any unused chassis slots with safety panels.
7 Install the HiPer ARC NAC. Refer to the HiPer ARC NAC Getting Started
Guide for more information.