System Construction; Basic System - Panasonic KX-TD500 Installation Manual

1.2 System Construction

1.2 System Construction

1.2.1 Basic System

Basic System consists of one Shelf called Basic Shelf and it can be equipped with up to 192
lines (including Extensions and CO lines).
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Basic Shelf
A Basic Shelf is always required. It contains its own power supply and 14 mounting spaces
called "Slots". The CPU card and the TSW card are installed at factory in Basic Slot 1 and
Basic Slot 2 respectively. The remaining 12 slots provide mounting space for various cards that
can be used. Any optional service card can be mounted in any one of these 12 slots. So these
slots are called "Free Slot".
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Figure 1: Basic System
System Outline