Issue 4 May 2002
1-1
555-233-123
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Maintenance Architecture
The maintenance subsystem is a part of the software that initializes and maintains
the system. The software continuously monitors system health, and keeps a
record of errors detected in the system. The maintenance subsystem also
provides a user interface for on-demand testing.
This chapter provides a brief description of the maintenance strategy and the
background information on the system’s overall functions. For detailed
descriptions of components and subsystems, refer to related topics in
‘‘Maintenance Object Repair Procedures’’
How to use the Maintenance book
This procedure begins with the system raising an alarm against a Maintenance
Object (MO), a software module that monitors the components of a circuit pack.
These components can include:
■
Hardware
■
System (processor) availability and conditions
■
Presence of and physical connections (copper, fiber) to other components
■
Presence of certain signals (synchronization, DS1) within specific
parameters
■
Environment (power, cabinet temperature sensors)
Summary of Contents for Definity SI
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Page 62: ...Maintenance Architecture 555 233 123 1 26 Issue 4 May 2002...
Page 92: ...Management Terminals 555 233 123 3 26 Issue 4 May 2002...
Page 204: ...Routine Maintenance Procedures 555 233 123 5 100 Issue 4 May 2002...
Page 250: ...LED Interpretation 555 233 123 7 10 Issue 4 May 2002...
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