Page 448 of 536
Chapter 25 — Fault locating and clearing
553-3121-210
Standard 3.0
January 1999
Software maintenance tools
Software maintenance tools help identify and clear faults, and provide
self-checking capabilities. Software maintenance tools are divided into the
following categories:
•
Diagnostic programs monitor a variety of operations, detect faults, and
initiate corrective action during normal call processing.
•
The History File records maintenance-related system messages.
•
Interactive programs test hardware, isolate faults, and verify fault
clearing.
Diagnostic programs
Diagnostic software programs monitor system operations, detect faults, and
clear faults. Some programs run continuously, some are scheduled as part of
the Midnight Routine, which is run automatically at a preset time.
Overlays
Some programs are also called overlays or loads. They are identified by a title
and a number preceded by the mnemonic for load (for example, Trunk
Diagnostic — LD 36).
See the Option 11C Compact Software Guides for detailed information on all
diagnostic programs.
Error Monitor
The Error Monitor is a resident program which continuously tracks call
processing. The Error Monitor generates system messages if it detects invalid
or incorrectly formatted call processing information.
System messages generated by the Error Monitor are preceded by the
mnemonic ERR, which usually indicates hardware faults, or the mnemonic
BUG, which usually indicates software problems.
Initialize Program
The Initialize Program momentarily interrupts call processing as it clears
common equipment faults. It then rebuilds call-dependent data and generates
system messages, with the mnemonic INI, which indicate the status of the
system. This process is called an initialization (or INI).
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Страница 17: ...xiv Contents 553 3121 210 Standard 3 0 January 1999 ...
Страница 89: ...Page 70 of 536 Chapter 6 Bracing cabinets against earthquakes 553 3121 210 Standard 3 0 January 1999 ...
Страница 97: ...Page 78 of 536 Chapter 8 Installing a new system 553 3121 210 Standard 3 0 January 1999 ...
Страница 107: ...Page 88 of 536 Chapter 10 Installing the system ground 553 3121 210 Standard 3 0 January 1999 ...
Страница 113: ...Page 94 of 536 Chapter 11 Installing the power supply 553 3121 210 Standard 3 0 January 1999 ...
Страница 125: ...Page 106 of 536 Chapter 12 Adding an expansion cabinet 553 3121 210 Standard 3 0 January 1999 ...
Страница 139: ...Page 120 of 536 Chapter 13 Installing the circuit cards 553 3121 210 Standard 3 0 January 1999 ...
Страница 157: ...Page 138 of 536 Chapter 15 Installing and connecting SDI and Ethernet ports 553 3121 210 Standard 3 0 January 1999 ...
Страница 175: ...Page 156 of 536 Chapter 16 Starting up and testing the system 553 3121 210 Standard 3 0 January 1999 ...
Страница 209: ...Page 190 of 536 Chapter 18 Connecting the trunks 553 3121 210 Standard 3 0 January 1999 ...
Страница 323: ...Page 304 of 536 Chapter 21 Installing Hospitality 553 3121 210 Standard 3 0 January 1999 ...
Страница 419: ...Page 400 of 536 Chapter 23 Pre programmed data 553 3121 210 Standard 3 0 January 1999 ...
Страница 455: ...Page 436 of 536 Chapter 24 Changing pre programmed data 553 3121 210 Standard 3 0 January 1999 ...
Страница 555: ...Page 536 of 536 Chapter 25 Fault locating and clearing 553 3121 210 Standard 3 0 January 1999 ...