User Manual

Chapter 2 Installation Guidelines 11
TX+
TX-
RX+
RX-
RX
TX
GND
+Vs
GND
(DATA+)
(DATA-)
TX+
TX-
RX+
RX-
RX
TX
GND
+Vs
GND
•
D a t a +
•
-D a t a
(DATA+)
(DATA-)
TX: Transmitted Data
RX: Received Data
ADAM-4572 Modbus Serial Device
2.2.2 Third Party Modbus Serial Device Wiring
Wiring of RS-232 connection
When connecting RS-232 interface of ADAM-4572 to a third party de-
vice with DB-9 interface for data transmission, please follow the illustra-
tion below to short pin 4 and pin 6, pin 7 and pin 8 respectively at the DB-
9 end.
Figure 2-6: Connecting to Modbus Serial Devices (RS-232)
Wiring of RS-485 and RS-422 connection
If you are using RS-485 or RS-422 interface for data transmission, follow
standard connection.
Figure 2-7: Connecting to Modbus Serial Devices (RS-485)