Fig 4b. ADA-4010A 2-wires connection to PC by the use of USB to RS485/RS422 converter ADA-I9140
3.3. RS485 BUS CONNECTION
The RS485/RS422 interface at ADA-4010A converter is available on terminal block described as: Tx+/A, Tx-/B, Rx+, Rx-, GND.
Below are shown connections of ADA-4010A converter to RS485(4W) and RS485(2W) buses.
3.3.1. RS485(4W) BUS CONNECTION
Fig 5. Example connection of ADA-4010A to RS485(4W) 4-wire bus and galvanic separation SLAVE device
6
ADA-4010A
(5) GND
GND
(2) Rx
(3) Tx
RS232
connector DB-
9F/DCE
Screw
connector
RS485 / RS422
RS485(4W) bus
9600Bd/8/O/1
RS232
connector
DB-9M/DTE
PC or
MASTER device
ADA-I1040
GND (5)
Tx (2)
Rx (3)
Rt
Rt
Rx+
Rx-
Tx+/ A
Tx-/ B
RS232
SLAVE
2400Bd/8/N/2
SLAVE
19200/Bd/7/N/2
SLAVE
9600Bd/8/E/1
RS232
RS232
GND
USB
USB
connector
Screw
connector
RS485 / RS422
RS485(2W)
USB
connector
PC
ADA-I9140
USB
Rx+
Rx-
Tx+/ A
Tx-/ B
Tx+ / A
Tx- / B
Rx+
Rx-
Screw
connector
RS232
Tx
Rx
GND
RTS
CTS
Screw
connector
RS485 / RS422
ADA-4010A
Summary of Contents for ADA-4010A
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