Aria-24
ipe
Digital Key Telephone System
Installation Manual
Issue 1.5
Aria Technologies
30
Modular Jack(MJ1~MJ3) Pin assignment
MBUB MJ1(CO)
1) T mode
Connector
Pin Number
NO
SIGNAL NAME
FUNCTION
RJ45
1,2,7,8
Reserved
3
TX+
Transmit Data
4
RX+
Receive Data
5
RX-
Receive Data
6
TX-
Transmit Data
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
OFF
OFF : T mode
SW5
1
2
3
4
ON
T
S
CN21
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
