Panasonic LB-DH7 Series Operator's Manual page 9

Introduction
Base Module_Top panel
Top panel
A
Base Module_Side panel

Ventilation hole
A
Component names

Serves as the top panel of the uppermost module of the system.
≥ The top panel is secured to the Base Module by four
thumbscrews and one M3 screw. To add the Extension Unit to
the top of the Base Module, remove the top panel from the Base
Module and then install it on the uppermost Extension Unit.
Interface side
Serves for air ventilation of the unit.
≥ Care should be taken not to block the hole.
9
Interface side

Interface side