User's Manual

NDA-24300 CHAPTER 4
Page 291
Issue 1
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
Procedure to Replace PA-SDTA/PA-SDTB card
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).
A
START
On the PA-SDTA card, turn ON Switch 4
of the P-SW key.
On the PA-SDTA card, set the MB key UP (=ON).
By using the SPTS command, verify that no calls
are being handled by the SDT card.