2.3 Installation of the Trunk CardsInstallation Manual 552.3.2 BRI2 CardFunction2-port ISDN Basic Rate Interface card. EURO-ISDN/ETSI compliant.Accessory and User-supplied ItemsAccessory (included): Extension Bolt × 1, Strap × 1User-supplied (not included): RJ45 connectorNotes• When connecting this optional service card to the trunk, connect through an NT1; donot connect to the U interface of the trunk directly.• This optional service card has 100 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, bysetting the A/B switch or using the connector with appropriate pin assignments.• To confirm the trunk connection, refer to "Confirming the Trunk Connection" in "2.10.1Starting the Hybrid IP-PBX".NoticeIf the connected ISDN terminal has no external power source, make sure that the poweris supplied from the BRI2 card by programming the Hybrid IP-PBX accordingly.However, if there is an external power source to the terminal, make sure that there is nopower supplied to the terminal from the BRI2 card. Failure to do so may cause damage tothe power supply circuit of the BRI2 card or the terminal.Switch SettingsSwitch Type Usage and Status DefinitionA/B Slide Select A (default) for trunk or B for extension use.To NT1/ExtensionRJ45 (LINE 1)RJ45 (LINE 2)LED 1LED 2A B A BOR
