ETOP P/I-P3BVL, User Manual

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Chapter 2 Installations
P/I-P3BVL User's Manual 29
COM1 Serial Port
COM1, a 10-pin header connector , is the onboard COM1 serial port
of the P/I-P3BVL. The following table shows its pin assignments.
Pin # Signal Name
1 DCD, Data carrier detect
2 RXD, Receive data
3 TXD, Transmit data
4 DTR, Data terminal ready
5 GND, ground
6 DSR, Data set ready
7 RTS, Request to send
8 CTS, Clear to send
9 RI, Ring indicator
10 N.C.
COM2 Serial Port
COM2, a 10-pin header connector , is the onboard COM2 serial port
of the P/I-P3BVL. The following table shows its pin assignments.
Pin # Signal Name
1 DCD, Data carrier detect
2 RXD, Receive data
3 TXD, Transmit data
4 DTR, Data terminal ready
5 GND, ground
6 DSR, Data set ready
7 RTS, Request to send
8 CTS, Clear to send
9 RI, Ring indicator
10 N.C.