BB-VESR90x Serial Servers
38
SERIAL INTERFACE SPECIFICATIONS
Serial Interfaces
Mode Selection
RS-232/422/485 software selectable
RS-232 Lines
TXD, RXD, RTS, CTS, DTR, DSR, DCD, GND
RS-422 Lines
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,
14400, 19200, 28800, 38400, 57600, 115200,
230400
Data Bits
5, 6, 7, 8
Parity
None, even, odd, mark, space
Stop Bits
1, 1.5, 2
Flow Control
None, RTS/CTS, XON/XOFF
RS-422/485 Biasing
Auto 4.7K Ohm pull-ups and pull-downs
RS-422/485 Termination
Auto termination with through-hole resistor (user
supplied)
RS-485 Data Control
Auto control via MCU