Horner APG XL6 OCS User Manual
Page 26

CH.5 MAN0883-05-EN
March 4, 2010
Page 26 of 135
#1037
Figure 5.2 – MJ Serial Port Connectors and DIP Switches for RS-485 Port Termination
Table 5.2 – – MJ2 Serial Port Pin Assignments
Pin
Signal
Signal Description
Direction
1
RX+
RS-485 Receive Positive
In
2
RX
−
RS-485 Receive Negative
In
3 TX+ RS-485
Transmit
Positive Out
4
TX
−
RS-485 Transmit Negative
Out
5
+5*
+5 VDC 60mA max
Out
6 0V
Ground
−
7 TD
1
RS-232
Transmit
Data
In
8 RD
1
RS-232 Receive Data
Out
Switch
On
Position
* +5Vdc 60mA Max
Pin
MJ2 Pins
Signal
Direction
8
TXD OUT
7
RXD IN
6
0 V
Ground
5*
+5 60mA
OUT
4
TX- OUT
3
TX+ OUT
2
RX- IN
1
RX+ IN
1
8
MJ2 Full Duplex Mode
MJ2 Half Duplex Mode
Pin
MJ2 Pins
Signal
Direction
8
TXD OUT
7
RXD IN
6
0 V
Ground
5*
+5 60mA
OUT
4
TX- OUT
3
TX+ OUT
2
TX-/RX- IN/OUT
1
TX+/RX+ IN/OUT
1
8
* +5Vdc 60mA Max