PCM-68942 2 PCM-6894 User ManualBC-599/596Serial Port 1/2/3/4 Connector (CN12)The PCM-6894 offers three RS-232 serial ports and one RS-232/422/485 serial port to connect serial devices. Using the BIOS PeripheralSetup program, you can select the address for each port or disableit. Please check the following table for the pin assignment.Pin Signal Pin Signal1 DCD1 2 DSR13 RXD1 4 RTS15 TXD1 6 CTS17 DTR1 8 RI19 GND 10 N.C.11 DCD2 12 DSR213 RXD2 14 RTS215 TXD2 16 CTS217 DTR2 18 RI219 GND 20 N.C.21 DCD3 22 DSR323 RXD3 24 RTS325 TXD3 26 CTS327 DTR3 28 RI329 GND 30 N.C31 DCD4 32 DSR433 RXD4 34 RTS435 TXD4 36 CTS437 DTR4 38 RI439 GND 40 N.C.
