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(9) COM1/2/3/4/5/6 (9-pin): Serial Port Header
COM1 (9-pin): RS232/422/485 Serial Port Header
COM2/3/4/5/6 (9-pin): RS232 Serial Port Header
COM2
(RS232/422/485)
*Notice: COM1 header can function as RS232/422/485 port. In normal settings
COM1 functions as RS232 port. With compatible COM cable COM1 can function as
RS422 or RS 485 port. User also needs to go to BIOS to set 'Transmission Mode
Select' for COM1 as [RS422] or [RS485] for boards that support RS422/485 function
before connecting compatible COM cable to COM1 header.
COM4
COM6
COM5
COM3
COM1
6 7 8 9
Pin1
Pin NO. RS232
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
21
2
3 4 5
*RS422
*RS485
(COM1)
(COM1)
TX-
DATA-
TX+
DATA+
RX+
NC
RX-
NC
GND
GND
NC
NC
NC
NC
NC
NC
NC
NC
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