Instruction manual

Instruction Manual
4
Pinout
Pin 1 DCD
Pin 2 RXD
Pin 3 TXD
Pin 4 DTR
Pin 5 GND
Pin 6 DSR
Pin 7 RTS
Pin 8 CTS
Pin 9 RI
422 485
1 TXD+ RXD+ (485)
2 TXD- RXD- (485)
3 RXD+ X
4 RXD- X
5 GND GND
RS232
RS422/485