Components; System Overview - AT&T MERLIN LEGEND System Reference Manual

System Overview

Components

Control Unit
Telephones
Adjuncts
1-2 Components
The system consists of required and optional components:
required components
control unit
telephones
optional components
adjuncts
adapters
applications
Figure 1-1 on page 4 shows the components of the system. The numbered
paragraphs following the figure correspond to the numbered items in the figure.
The control unit consists of the basic carrier and any expansion carriers. These
include the processor module, power supply modules, and line/trunk and station
modules. (See Chapter 5, "Hardware," for a detailed description.)
The telephones that can be used with the system are the digital/ISDN (MLX)
telephones, the analog multiline telephones (including cordless telephones),
and the single-line telephones. (See Chapter 5, "Hardware," for a detailed
description.)
Adjuncts are pieces of equipment that connect directly to the control unit or to a
telephone through an adapter (see "Adapters" below). Answering machines,
credit card verification terminals, and alerts are examples of adjuncts. For more
information on adjuncts, see Chapter 5, "Hardware."