NEC SV8500 Operation And Maintenance Manual - page 614
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CHAPTER 5
Operation Procedure for System with PIR
YES: Proceed to STEP 3.
NO: Changeover the ACT/STBY of speech path by using CMOD. Proceed to STEP 2.
STEP 2
Make sure that the GT card to be replaced is placed in STBY mode.
OPE/MB lamp on the GT card goes OFF.
STEP 3
Make sure that the mate GT is placed in ACT mode.
OPE/MB lamp on the GT card lights green.
STEP 4
Turn ON (upward) MB key on the GT that has been placed in STBY side.
OPE/MB lamp lights red on the GT card.
STEP 5
Extract the GT card whose MB key turned ON.
STEP 6
Turn ON (upward) MB key on the new GT card.
STEP 7
Insert the new GT card to the slot.
STEP 8
Turn OFF (downward) MB key on the new GT card.
STEP 9
Change over the ACT/STBY of speech path by using CMOD command.
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Make sure that OPE/MB lamp lights green on the new GT card.
STEP 10 Make test calls to confirm that the new GT card is operating normally.
STEP 11 Display system messages from PCPro and analyze them when needed.
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