NEC NDA-24300 manual End

A

Check the line/trunk circuit cards mounted in the unit to see if they are faulty.

Perform this check on an individual basis.

If the fault has stopped, the circuit card extracted at that time is faulty. Replace the circuit card with a spare.

If the fault continues, check the next circuit card.

END

FAULT REPAIR PROCEDURES

ATTENTION

Contents

Static Sensitive

Handling

Precautions Required

Set the MB switch of the line/trunk circuit card UP and extract it from its mounting slot.

Make a station-to-station call and see if a fault occurs.

NDA-24300CHAPTER 5

Page 339

Issue 1