KX-NCP1280XJ - Panasonic PBX Service Manual (repair manual). Page 13

13

2-port ISDN Basic Rate Interface card. EURO-ISDN/ETSI compliant.

Accessories (included): Ferrite core x 1
User-supplied (not included): RJ45 connector

• If the connected ISDN terminal has no external power source, make sure that the power is supplied from the BRI2 card by pro-

gramming 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
BRI2 card. Failure to do so may cause damage to the power supply circuit of the BRI2 card or the terminal.

• When connecting this optional service card to the trunk, connect through an NT1; do not connect to the U interface of the trunk

directly.

A/B

Slide

Select A (default) for trunk or B for extension use.

1-2

Reserved

-

-

3

TX1

(+)

Transmit data 1

4

RX2

(+)

Receive data 2

5

RX1

(-)

Receive data 1

6

TX2

(-)

Transmit data 2

7-8

Reserved

-

-

1-2

Reserved

-

-

3

RX2

(+)

Receive data 2

4

TX1

(+)

Transmit data 1

5

TX2

(-)

Transmit data 2

6

RX1

(-)

Receive data 1

7-8

Reserved

-

-