Fault Diagnostics; Fault Information And Fault Diagnostics - NEC Univerge SV8500 Programming Manual

4. FAULT DIAGNOSTICS

4.1 Fault Information and Fault Diagnostics

In case of trouble with the ACD system, alarms are indicated or system messages are displayed. By collecting
such fault information promptly, the faulty positions can be diagnosed and recovery operations can be started
quickly. Figure 8-2 shows the flow from the occurrence of a fault to its diagnostics.
Figure 8-2 Flow from Fault Occurrence to Fault Diagnostics
Fault Occurrence
Fault Information Collection
Alarm
•
• System Message
• Fault detected during routine
maintenance
4.2 Diagnostics from System
Messages
CHAPTER 8
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SYSTEM MAINTENANCE