UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE

Procedure to Replace PA-SDTA/PA-SDTB card

START

On the PA-SDTA card, turn ON Switch 4 of the P-SW key.

By using the SPTS command, verify that no calls are being handled by the SDT card.

On the PA-SDTA card, set the MB key UP (=ON).

A

ATTENTION

Contents

Static Sensitive

Handling

Precautions Required

ACT lamp on the PA-SDTA card goes OFF.

Though any call attempt is rejected, already established calls are safely maintained. When any connection link exists, the link is maintained.

Note: When the card is in a dual configuration, perform this for both system sides, in the order of STBY ACT.

OPE lamp on the PA-SDTA card is red.

When already established calls exist, the connections lose voice/tone. When any connection link exists, the link is severed after a few seconds.

Note: When the card is in a dual configuration, perform this for both system sides (both ACT and STBY sides).

NDA-24300CHAPTER 4

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Issue 1

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NEC NDA-24300 manual Procedure to Replace PA-SDTA/PA-SDTB card