Chapter 2 - System Hardware; Cabinets; Common Cards - Panasonic DBS-576 Technical Manual

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This section describes the purpose and functionality of the main components of the system. By
understanding how these components work, you can easily configure a system that meets your
specific needs.
This section is divided into the following categories:
The DBS 576 cabinets are explained in detail below. Both the base cabinet and the expansion
cabinet share the same PCB cards. Both cabinets can attach to any of the proprietary telephone
sets offered by Panasonic. Each cabinet includes its own power supply, and is designed with
dedicated slots for CPC and option cards, and free slots for trunk, extension, and built-in option
cards.
The common cards control the signaling and features used by all other cards in the system.
Without common cards, other cards cannot function. The common card which is considered the
"brains of the system" is called the Central Processor Card, or CPC. Each phone system
requires a processor to operate.
Panasonic offers a wide variety of interface circuits that allow the DBS 576 to attach to Central
Office (CO) and/or common carrier equipment. This interface equipment is explained here in
Chapter 2.
The DBS 576 allows for connection of Panasonic proprietary telephones as well as various
analog telephones and devices provided by other manufacturers. This chapter includes
descriptions of the cards and equipment needed to accomplish these connections.
The cards and interfaces that provide optional services, and all miscellaneous equipment, are
explained later in this chapter.
All Panasonic proprietary stations are explained later in this chapter.
Shown on the next page is an illustration of DBS 576 trunk and extension line connections, as well as
some of the more popular peripheral connections.


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Chapter 2 - System Hardware