LG-Nortel IPLDK 20 Installation Manual page 37

IP LDK-20 Installation Manual
3.3.2.1 Pin assignment
T MODE
CONNECTOR
RJ45
STIB Port1
T Interface
ON
OFF
1 2 3 4
SW4
RJ45 type jack
T
S
CN1
STIB Port2
Only T Interface
RJ45 type jack
ON : Termination
Figure 3.3.2.1a T Mode(Basic STIBI Line Connector and Terminating Resistors)
PIN NUMBER
3
TX+
R
6
TX -
4
RX+
R 5
RX -
ON
Max. 1000 meters
OFF
1 2
SW2
OFF : T mode
3
TX+
R 6
TX -
4
RX+
R 5
RX -
ON
Max. 1000 meters
OFF
1 2
SW1
NO SIGNAL NAME
1,2,7,8
3 TX+
4 RX+
5 RX-
6 TX-
NT1(NT - B OX)
RX+ 3
6
RX -
TX+
4
TX 5
NT1(NT - BOX)
3
RX+
6
RX -
4
TX+
5
TX
33
Board Installation
FUNCTION
Reserved
Transmit Data
Receive Data
Receive Data
Transmit Data
From/to PX
From/to PX