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Modbus Serial Port (Male DB9)
Pin RS-232
RS-422/
RS-485 (4W)
RS-485 (2W)
1
DCD
TxD-(A)
–
2
RXD
TxD+(B)
–
3
TXD
RxD+(B)
Data+(B)
4
DTR
RxD-(A)
Data-(A)
5*
GND
GND
GND
6
DSR
–
–
7
RTS
–
–
8
CTS
–
–
9
–
–
–
*Signal ground
PROFIBUS Serial Port (Female DB9)
Pin
Signal
1
-
2
-
3
PROFIBUS D+
4
RTS
5
Signal common
6
5V
7
-
8
PROFIBUS D-
9
-
Console Port (RS-232)
The MGate 5111 Series can use an RJ45 serial port to connect to a PC to
configure the device.
Pin
Signal
1
DSR
2
RTS
3
GND
4
TXD
5
RXD
6
DCD
7
CTS
8
DTR
Power Input and Relay Output Pinouts
V2+
V2-
V1+
V1-
Shielded
Ground
DC
Power
Input 2
DC
Power
Input 2
N.O. Common
N.C.
DC
Power
Input 1
DC
Power
Input 1
