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IP LDK-20 Installation Manual Board Installation
23
3.2.1 Modular Jack(MJ1~MJ3) Pin Assignment
3.2.1.1 MBUB MJ1(CO)
T Mode
CONNECTOR PIN NUMBER NO SIGNAL NAME FUNCTION
1,2,7,8 Reserved
3 TX+ Transmit Data
4 RX+ Receive Data
5 RX- Receive Data
RJ45
6 TX- Transmit Data
Figure 3.2.1.1a T Mode(Basic BRI Line Connector and Terminating Resistors)
NT1(NT
-
BOX
)
3
6
4
5
RX+
RX
-
TX+
TX
BRI Port1
TX+
TX
-
RX
+
RX
-
3
6
4
T
Interface
R
R
SW7
1 2
ON
OFF : T mode
SW5
1 2
3
4
ON
T
S
CN2
5
RJ45 type jack
Max. 1000 meters
OFF
From/to PX
NT1(NT
-
BOX)
3
6
4
5
RX+
RX
-
TX+
TX
BRI Port2
TX
+
TX
-
RX+
RX
-
3
6
4
Only T
interface
R
R
SW6
1
2
ON
ON : Termination
5
RJ45 type jack
Max. 1000 meters
From/to PX
OFF
OFF