Rs485(4W) Bus Connection; Rs485(2W) Bus Connection - CEL-MAR ADA-4010A User Manual

ADA-4010A

3.3.1. RS485(4W) BUS CONNECTION

PC or
MASTER device
RS232 RS232
connector connector
DB-9M/DTE DB-9F/DCE
(2) Rx Tx (2)
(3) Tx Rx (3)
(5) GND GND (5)
Fig 5. Example connection of ADA-4010A to RS485(4W) 4-wire bus and galvanic separation SLAVE device

3.3.2. RS485(2W) BUS CONNECTION

PC or
MASTER device
RS232 RS232
connector connector
DB-9M/DTE DB-9F/DCE
(2) Rx Tx (2)
(3) Tx Rx (3)
(5) GND GND (5)
Fig 6. Example connection of ADA-4010A to RS485(2W) 2-wire bus and galvanic separation SLAVE device
ADA-I1040
Screw
connector
RS485 / RS422
Tx+/ A
Rt
Tx-/ B
Rx+
Rt
Rx-
GND
RS232
ADA-I1040
Screw
connector
RS485 / RS422
Tx+/ A
Rt
Tx-/ B
Rx+
Rx-
GND
RS232
RS485(4W) bus
9600Bd/8/O/1
RS232
SLAVE
9600Bd/8/E/1
RS485(4W) bus
9600Bd/8/O/1
RS232
SLAVE
9600Bd/8/E/1
6
RS232
SLAVE
2400Bd/8/N/2
RS232
SLAVE
2400Bd/8/N/2
SLAVE
19200/Bd/7/N/2
SLAVE
19200/Bd/7/N/2