NEC NDA-24300 manual End

Models: NDA-24300

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FAULT REPAIR PROCEDURES

(2) For Single Configuration

A

Replace the related circuit card (CPU, GT, TSW, MUX, EMA) with a spare, and check.

END

ATTENTION

Contents

Static Sensitive

Handling

Precautions Required

Replace the circuit card (CPU, GT, TSW, MUX, EMA) individually by referring to the following sections in Chapter 4:

Section 1.3.1, CPR Replacement Procedure

Section 1.3.2, EMA Card Replacement Procedure

Section 2.3.1, GT Card Replacement Procedure

Section 2.3.2, TSW Card Replacement Procedure

Section 3.3.2, MUX Card Replacement Procedure

Initialize the system by pressing the START button on the TOPU and check to see if a station-to-station connection can be set up and identify a circuit card responsible for the fault.

CHAPTER 5

NDA-24300

Page 360

Issue 1

Page 387
Image 387
NEC NDA-24300 manual End