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NDA-24300 CHAPTER 4
Page 289
Issue 1
UNIT/CIRCUIT CARD REPLACEMENT PROCEDURE
3.3.3 SDT Card Replacement Procedure
The SDT (PA-SDTA/PA-SDTB) card, mounted in a universal slot of a PIM, is used
to provide a 52M interface for the optical fiber lines. Use the following procedure
to replace the SDT card with a spare.
Procedure to Replace Optical Fiber Cable
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required
While this card is being replaced, the connected optical fiber line cannot be used.
WARNING
• ACT lamp on PA-SDTA card goes
OFF. (When card is provided in a dual
configuration, the card becomes
STBY.)
The following occurs in call processing:
When card is provided in dual
configuration
All calls (including already established
calls plus newly attempted calls) can
normally be handled by the mate card.
When card is in single configuration,
or mate card is faulty in dual configu-
ration
Though any call attempt is rejected, al-
ready established calls are not affected.
When any connection link exists, the
link is still maintained.
• OPE lamp on the PA-SDTA card is red.
The following occurs in call processing:
When card is in single configuration,
or mate card is faulty in dual
configuration
Already established calls (while in
speech) lose voice/tone. Any connec-
tion link is severed after a few seconds.
ATTENTION
Contents
Static Sensitive
Handling
Precautions Required
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).