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CHAPTER 5 Operation Procedure for System with PIR
4.8 Control System Fault - STBY Side Is Faulty
•CPU Controlling Block Diagram: See Figure 5-17, Figure 5-18 in this chapter.
Faulty Situation:
• Fault has occurred at the STBY side of Dual Configuration system.
•[0-I] STBY CPU Failure.
• The ACT side has become faulty, and system changeover has been executed.
•[0-C], [0-H], [0-J] Processor Failure (ACT side)
1-IMG
Replace STBY-side related circuit card
(CPU, GT, TSW, MUX, EMA) with a
spare, and check.
Replace the circuit card (CPU, GT, TSW, MUX,
EMA) individually by referring to the following:
• CPU Card Replacement Procedure
• EMA Card Replacement Procedure
• EXB (EXB-PIR/EXB-TSW) Card
Replacement Procedure
• GT Card Replacement Procedure
• Replacement Procedure of TSW
(Time Division Switch) Circuit
Card
• Replacement Procedure of MUX
(Multiplexer) Circuit Card
Place the circuit card (CPU, GT, TSW, MUX) to
ACT mode by executing CPU or TSW change-
over. (Refer to SYSTEM CONTROL
PROCEDURES)
Check to see if a station-to-station connection can
be set up to identify the circuit card
responsible for the fault.
When a fault is not indicated, set
the faulty systems to STBY side.
Refer to SYSTEM CONTROL
PROCEDURES in Chapter 2.
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required
START
END
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