3.5 Information about the Physical Trunk Cards
3.5.8BRI4 Card (KX-TDA0284) and BRI8 Card (KX-TDA0288)
Function
BRI4:
BRI8:
LEDs
RJ45 (LINE 1 to LINE 8)
B A
To NT1/Extension
Accessories and User-supplied Items
Accessories (included): Ferrite core(s) × 1 (BRI4 card) or 2 (BRI8 card)
Notes
•LINE 5 to LINE 8 are for BRI8 card only.
•When connecting these optional service cards to the trunk, connect through an NT1; do not connect to the U interface of the trunk directly.
•These optional service cards have 100 Ω of terminal resistance. For use in point to
•When connecting the RJ45 connector, attach the included ferrite core. Refer to "3.2.9 Attaching a Ferrite Core".
•These optional service cards can be used for either trunk or extension connection, by setting the A/B switch or using the connector with appropriate pin assignments.
•For details about power failure transfer, refer to "3.14.1 Power Failure Connections".
•To confirm the trunk connection, refer to "Confirming the Trunk Connection" in "3.15.1 Starting the PBX".
Notice
If the connected ISDN terminal has no external power source, make sure that the power is supplied from the BRI4/BRI8 card by programming the PBX accordingly.
However, if there is an external power source to the terminal, make sure that there is no power supplied to the terminal from the BRI4/BRI8 card. Failure to do so may cause damage to the power supply circuit of the BRI4/BRI8 card or the terminal.