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Atop Modbus Gateway
MB5400 Series
User’s Manual V 1.3
65
Pin 8
CTS
TXD-
-
Pin 9
RI
-
-
5-Pin Terminal Block to RS-485/RS-422 connectors
Table 5.4 Pin Assignment for 5-Pin Terminal Block to RS-485/RS-422 Connectors
Pin #
RS-232
RS-422 /
4-Wire
RS-485
2-Wire
RS-485
Pin 1
RXD
TXD+
-
Pin 2
CTS
TXD-
-
Pin 3
TXD
RXD+
DATA+
Pin 4
RTS
RXD-
DATA-
Pin 5
SG
SG
SG
RJ-45 to Male DB9 Connector
Table 5.5 Pin Assignment for RJ-45 to Male DB9 Connector
RJ45
Male DB9
RTS
Pin 1
Pin 7
RTS
DTR
Pin 2
Pin 4
DTR
TXD
Pin 3
Pin 3
TXD
SG
Pin 4
Pin 5
GND
SG
Pin 5