NEC NEAX2400 system manual PM C-level Infinite Loop Permanent, 0000

TROUBLESHOOTING

3-B PM C-level Infinite Loop (Permanent)

2. 3-B PM C-level Infinite Loop (Permanent)

This message is displayed when a C-level program abnormal state has been detected as permanent. When the abnormal state is detected by the Port Microprocessor (PM) on an FCH card, the PM places the card into make-busy status. If the failure occurs more than 15 times an hour, the system judges the failure as permanent, issuing 3-B system message.

1. xx00 0000 0000 0000 2. 0000 0000 0000 0000

MG

UG

FCH Mounting Location

FCH Mounting Location

MG: Module Group ￿

U: Unit (0-3)￿

G: Group (00-23)

Figure 7-2 3-B PM C-level Infinite Loop (Permanent)

2.1 Repair Procedure

STEP 1: Initialize the indicated FCH (PA-FCHA) card using the MB key. (MB key: Down➔ Up ➔ Down)

When the LED on the FCH card lights green and the related system messages are not displayed, mon- itor the system for a while. Otherwise move to STEP 2.

Flip the MB key as follows to initialize the FCH card.

OPE	FCH (PA-FCHA)	OPE LED is OFF.	OPE LED lights ￿
			GREEN again.

	OPE	OPE
MB	MB	MB
	Anti-static Kit

ATTENTION

Contents

Static Sensitive

Handling

Precautions Required

FRONT VIEW

Figure 7-3 How to Initialize the FCH (PA-FCHA) Card

STEP 2: Replace the FCH card, following the procedure listed in Figure 7-4“How to Replace the FCH (PA- FCHA) card.”

ND-70185 (E)CHAPTER 7

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Revision 3.0