2.3.6 BRI2 Card (KX-TDA3280)Function2-port ISDN Basic Rate Interface card with 1 power failure transfer (PFT) port. EURO-ISDN/ETSI compliant.To NT1/ExtensionRJ45 (LINE 1)RJ45 (LINE 2)LED 1(LINE 1)LED 2(LINE 2)A B A BORAccessories and User-supplied ItemsAccessories (included): Extension Bolt ´ 1, Strap ´ 1User-supplied (not included): RJ45 connectorNote• When connecting this optional service card to the trunk, connect through an NT1; do not connect tothe U interface of the trunk directly.• This optional service card has 100 W of terminal resistance. For use in point to multi-point connection,the card must be placed at the end of the bus.• This optional service card can be used for either trunk or extension connection, by setting the A/Bswitch or using the connector with appropriate pin assignments.• For details about power failure transfer, refer to "2.12.1 Power Failure Connections".• To confirm the trunk connection, refer to "Confirming the Trunk Connection" in "2.13.1 Starting thePBX".NoticeIf the connected ISDN terminal has no external power source, make sure that the power is supplied fromthe BRI2 card by programming the PBX accordingly.However, if there is an external power source to the terminal, make sure that there is no power suppliedto the terminal from the BRI2 card. Failure to do so may cause damage to the power supply circuit of theBRI2 card or the terminal.Switch SettingsSwitch Type Usage and Status DefinitionA/B Slide Select A (default) for trunk or B for extension use.78 Installation Manual2.3.6 BRI2 Card (KX-TDA3280)
