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CHAPTER 5 Operation Procedure for System with PIR
SDTB cards.
STEP 11 When the new card is PA-SDTB, also connect the MT 24 TSW cables to all the required front
connectors.
STEP 12 Turn OFF (downward) MB key on the new PA-SDTA.
STEP 13 Set P-SW key - 4 (MBR) to OFF position on the PA-SDTA. When the card is provided in dual
configuration, do this for both cards.
STEP 14 Turn OFF (downward) MB key on the new PA-SDTB.
• OPE lamp lights green on the card.
[End]
1.3.2 How to Replace Optical Fiber Cable
[Start]
STEP 1 Set P-SW key - 4 (MBR) to ON position on the PA-SDTA card to be replaced.
When the card is provided in dual configuration, do this for both cards in the order of STBY - ACT.
• ACT lamp goes OFF. (When the card is provided in dual configuration, ACT-STBY changeover
will take place.)
• When the card is provided in dual configuration: normal operation is available including new call
origination using other card.
• When the card is provided in single configuration: active calls will be maintained, new call origi-
nation is not available. Note that when having connection link, it will be left connected.
STEP 2 Turn ON (upward) MB key on the PA-SDTA card.
When the card is provided in dual configuration, do this for both cards in the order of STBY - ACT.
• OPE lamp changes color to red.
• Active calls will be placed in no-tone-state (single configuration only).
• When having connection link, it will be dropped in a few seconds (single configuration only).
STEP 3 Remove the optical fiber cable from the PA-SDTA card.
STEP 4 Connect the new optical fiber cable.
STEP 5 Turn OFF (downward) MB key on the PA-SDTA card.
STEP 6 Set P-SW key - 4 (MBR) to OFF position.
• OPE lamp lights green on the card.
[End]
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