Nortel Networks COMMUNICATION SERVER 1000 NN43021-110 - Manual (Page 57)

Software architecture 57
All software programs, including the nonresident programs listed in the
following section are resident in, and accessible from, the memory on the
cards listed above.
Nonresident programs
Nonresident programs are stored on data disks and loaded into the overlay
area of system memory to perform specific tasks. They are removed from
the overlay area when no longer required. Nonresident programs can be
loaded automatically, under program control, or manually, through software
commands.
Nonresident programs are manually loaded into memory through the
system terminal (or maintenance telephone). A terminal can be configured
as an input-only, output-only, or input and output device.
Software programs provide the system interface for maintenance, service
change, and traffic measurement. Each program is independent and
has its own specific set of commands and formats. These programs run
concurrently with normal call processing without interfering with system
traffic.
There are five main categories of nonresident programs:
•
service change and print routines
• maintenance diagnostics
• traffic
•
equipment data dump
•
software audit
Service change and print routines
Service changes do not usually require hardware changes. Instead, the
service administration programs are used to create or modify all aspects
of the system from individual feature key assignments to complete system
configurations. There are also programs and print routines for retrieving
data from the system to check the status of office data assignments.
Maintenance diagnostics
These programs are the primary instrument for clearing system faults.
Individual programs are used for automatically or manually testing the
Common Equipment and IPE. The programs can be loaded into the
overlay area at the request of maintenance personnel, or as part of a daily
maintenance routine automatically initiated by the system at a specified
time. In addition, background and signaling diagnostic routines can occupy
the overlay area when it is not in use.
Nortel Communication Server 1000
Communication Server 1000M and Meridian 1 Large System Overview
NN43021-110 02.05 Standard
30 September 2008
Copyright © 2003-2008 Nortel Networks
.