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ND-71762 (E) CHAPTER 8
Page 119
Issue 2
MAINTENANCE PROCEDURE
5. INSERTION/EXTRACTION OF CIRCUIT CARDS
This paragraph explains the procedure for inserting CCH, DTI, CCT and PLO/OSC circuit cards into their mounting
slots and extracting them while the system is in On-Line mode.
5.1 CCH Circuit Card
(1) Procedure for Extraction:
(2) Procedure for Insertion:
START
END
Set the MBR switch (SW01-0, 1) of the CCH card UP .
Set the MB switch of the CCH card UP .
The OPE lamp (green) goes out and the N-OPE lamp (red) illuminates on the CCH card.
When the CCH card is connected with the DTI card via the front cable, remove the front cable from the
CCH card.
Extract the CCH card from its mounting slot.
START
END
Set the MBR switch (SW01-0, 1) and MB switch of the CCH card UP .
Insert the CCH card into its mounting slot.
Set the MB switch of the CCH card DOWN .
Set the MBR switch of the CCH card DOWN .
The OPE lamp of the CCH card illuminates.
When the CCH card is connected with the DTI card, connect the front cable referring to CHAPTER 4
“INSTALLATION PROCEDURE”.