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CHAPTER 2 NDA-24300
Page 4
Issue 1
SYSTEM MAINTENANCE OUTLINE
1.3 Summary of This Manual’s Contents
Table 2-1 provides a brief description of the contents for each chapter in this manual.
2. BASIC KNOWLEDGE
This section identifies the information necessary for the system operations and maintenance procedures.
2.1 System Configuration
2.2 Line Equipment Numbers (LENS)
2.3 Local Partition (LP) Number
2.4 System Messages
2.5 Fault Detecting Function
2.6 Range of Faults Specification
2.7 Explanation of Terms
Table 2-1 Summary of This Manual’s Contents
CHAPTER DESCRIPTION
2See Section 2, Basic Knowledge.
Explains basic knowledge of fault detection and indication, functions and fault range of the system,
etc.
See Section 3, How to Read Precautions, Diagnostic, and Fault Repair Information.
Explains the methods of procedure performance and various symbols used in the description.
See Section 4, Reporting Fault to NEC.
Explains the method of forwarding faulty circuit cards, the method of creating a history record for fu-
ture fault repair, and the method of reporting faults to NEC.
3 Explains how to read and analyze system messages.
4 Explains the method of replacing a unit/circuit card due to a fault.
5 Explains repair procedures corresponding to the faults of processors or equipment.
6 Explains how to control the system in service management functions and precautions required in the
system control process.
7 Explains routine maintenance.
8 Explains the commands used in the system administrative management procedure.