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Allows addition of (1) 3-Port CO Trunk Daughter Board (3COIDB) or (1) PRI Daughter Board (1PRDB), when system has fewer station cards than CO Trunk/PRI Daughter Boards. Only required for system configurations with fewer station cards than CO Trunk/PRI Daughter Boards. Installs in any universal slot of Main or Expansion Chassis.
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| - Allows addition of (1) 3-Port CO Trunk Daughter Board (3COIDB) or (1) PRI Daughter Board (1PRDB), when system has fewer station cards than CO Trunk/PRI Daughter Boards
- - Only required for system configurations with fewer station cards than CO Trunk/PRI Daughter Boards- Installs in any universal slot of Main or Expansion Chassis
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