NEC NDA-24300 manual ATTCON/DESKCON Fault, Start

3.3 ATTCON/DESKCON Fault

Note 1: No speech can be made.

Note 2: While replacement of the ATI circuit card for the master ATTCON/DESKCON is in progress, the system is placed under Night Mode.

START

On the ATTCON/DESKCON, LCHK (Lamp Check) key has been pressed but no lamps have illuminated.

When the OPE lamp of the ATI (PA- CS33) circuit card does not illuminate

When the BL lamp of the ATI circuit card is flashing or illuminating

When keys cannot be operated

END

FAULT REPAIR PROCEDURES

ATTENTION

Contents

Static Sensitive

Handling

Precautions Required

Check the ATT connector cable between the ATTCON/DESKCON and the PBX.

Confirm that MB switch of the ATI circuit card is in ON position (UP side).

Confirm that trunk data (ATRK command) in the ATI circuit card are assigned.

Replace the ATI circuit card with a spare.

Confirm that MB switch of the ATI circuit card is in ON position (UP side).

Use MBTK command to confirm ATI circuit card is placed into make-busy state.

Check assignment of ATI data (ATRK command.)

Replace the ATI circuit card with a spare.

Replace the operator’s headset.

Replace the ATI circuit card with a spare.

NDA-24300CHAPTER 5

Page 331

Issue 1