B&B Electronics MESR424T_D-MT_D-SC - Manual - Manual (Page 67)

8. Appendices
67
Serial Interface Specifications
Mode Selection RS-232/422/485 software selectable
RS-232 lines TXD, RXD, RTS, CTS, DTR, DSR, DCD, GND
RS-422 lines (4 wire) TXDA(-), TXDB(+), RXDA(-), RXDB(+), GND
RS-485 lines (2 wire) Data(-), Data(+), GND
RS-485 lines (4 wire) TXDA(-), TXDB(+), RXDA(-), RXDB(+), GND
Baud Rates
75, 150, 300, 600, 1200, 2400, 4800, 7200, 9600,
14.4k, 19.2k, 28.8k, 38.4k, 57.6k, 115.2k, 230.4k
Data Bits 7, 8
Parity None, even, odd, mark, space
Stop bits 1, 2
RS-422/485 biasing Auto 1 K ohm pullups and pulldowns
RS-485 data control Auto control via MCU