2.4 Installation of the Trunk Cards — KX-TDA100/KX-TDA200
BRI4 and BRI8 Cards
BRI4: 4-port ISDN Basic Rate Interface card with 1 power failure transfer port. EURO-ISDN/
BRI8: 8-port ISDN Basic Rate Interface card with 1 power failure transfer port. EURO-ISDN/
(LINE 1 to LINE 8)
To NT1/ Extension
Accessory and User-supplied Items
Accessory (included): Ferrite core(s) × 1 (BRI4 card) or 2 (BRI8 card)
User-supplied (not included): RJ45 connector
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
multi-point connection, the cards must be placed at the end of the bus.
When connecting the RJ45 connector, attach the included ferrite core. Refer to "2.2.9
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 "2.12.1 Power Failure Connections".
To confirm the trunk connection, refer to "Confirming the Trunk Connection" in "2.13.1
Starting the Hybrid IP-PBX".
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 Hybrid IP-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.
of terminal resistance. For use in point to