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DOP-B05 Series
COM1 Port (Supports Flow Control)
Contact
COM Port PIN
RS-232
1
2 RXD
3 TXD
4
5 GND
6
7 RTS
8 CTS
9
Note: Blank = No Connection.
COM2 and COM3 Port
MODE1 MODE2 MODE3
COM2 COM3 COM2 COM3 COM2 COM3
COM Port PIN
RS-232 RS-485 RS-485 RS-485 RS-232 RS-422
1 D+ TXD+
2 RXD RXD
3 TXD TXD
4 D+ D+ RXD+
5 GND GND GND
6 D- TXD-
7
8
9 D- D- RXD-
Note: Blank = No Connection.
PIN1
PIN1