Pin Assignments
RJ45 Connector for Trunk Use
No. Signal Name Level [V] Function
1-2 Reserved – –
3 TX1 (+) Transmit data 1
4 RX1 (+) Receive data 1
5 RX2 (-) Receive data 2
6 TX2 (-) Transmit data 2
7-8 Reserved – –
RJ45 Connector for Extension Use
No. Signal Name Level [V] Function
1-2 Reserved – –
3 RX1 (+) Receive data 1
4 TX1 (+) Transmit data 1
5 TX2 (-) Transmit data 2
6 RX2 (-) Receive data 2
7-8 Reserved – –
RJ45 Connector for Single Line Telephone Extension Use
No. Signal Name Function
1-2 Reserved –
3 RB Ring B
4 RA Ring A
5 TA Tip A
6 TB Tip B
7-8 Reserved –
LED Indications
Indication Colour Description
LINE 4
LINE 3
LINE 2
LINE 1
Green Line status indication (LINE 1 to LINE 4):
Refer to "LINE LED Pattern" below for details.
Installation Manual 159
4.5.2 SLC2/BRI4 Card (KX-NS0280)