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11. Serial Port headers (COM1~COM6)
These headers are for serial (COM) ports. Connect the serial port module
cable to this header, then install the module to a slot opening at the back of
the system chassis.
NOTES:
•
•
COM1~COM2
Pin
1
3
5
7
9
COM3~COM6
Pin
1
3
5
7
9
2-20
The COM module is purchased separately.
COM1 also supports RS-232 / RS-422 / RS-485. See the table below and
section 3.3.7 SIO Configuration for details.
Signal
DCDN (422TXD- / 485TXD-)
SOUTN (422RXD+)
GND
RTSN
Ring / +5V / +12V
Signal
DCDN
SOUTN
GND
RTSN
RIN
A
B
C
D
E
F
Pin
Signal
2
SINN (422TXD+ / 485TXD+)
4
DTRN (422RXD-)
6
DSRN
8
CTSN
10
(NC)
Pin
Signal
2
SINN
4
DTRN
6
DSRN
8
CTSN
10
(NC)
COM1
A
COM2
B
COM3
C
COM4
D
COM5
E
COM6
F
MIX-ALND1
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