Instruction manual

DEFINITY® Business Communications System and GuestWorks® Issue 6
Overview
555-231-208
Issue 1
April 2000
Introduction
2-6Software
2
Software
All DEFINITY systems (and related Lucent Technologies systems) use similar
software. For example, DEFINITY BCS and GuestWorks Issue 6 uses the same
base software as DEFINITY ECS R8. To provide this commonality while still
accommodating wide variations in configurations and options, the system
dynamically allocates internal memory storage. Memory is sized when the system
is initialized, selecting the proper software parameters based on the hardware
configuration.
Hardware
Though the primary components are the same, your system can vary widely in
size and appearance, depending on your capacity requirements. The system may
be as small as a single, wall-mounted cabinet, or it may be as large as several tall
cabinets linked together in the same room or even hundreds of kilometers apart.
Regardless of configuration, however, the system’s footprint is relatively small.
The system’s main hardware components are port networks. Up to three port net-
works can be connected directly to each other. When there are more than three
port networks, the connections are made through a Center-Stage switch.
Processor Port Network
Every system has one Processor Port Network; it is often the only component in
small systems. The Processor Port Network houses the Switch Processing
Element (SPE).
The SPE contains the central processing unit, which supervises system operation.
It also contains a mass storage system for loading system software and saving
system translations.
Because your application requirements may vary widely, the system has three
types of SPEs available with proven capacities up to 100000 busy-hour calls. The
performance you realize will depend on the call processing, administrative, and
maintenance activities in which your system is engaged. See the
DEFINITY
®
ECS
System Description
for more details.
Expansion Port Network
Expansion Port Networks are used when the system grows beyond the capacity
of a single port network or must serve geographically-dispersed offices. They
provide additional ports as needed. Depending on the model, a system can have
up to 43 Expansion Port Networks.