14. Serial port connectors (10-pin COM1~6)
These connectors are for serial (COM) ports. Connect the serial port module
cable to this connector, then install the module to a slot opening at the back
of the system chassis.
NOTES:
• The COM module is purchased separately.
• COM1 also supports RS-232 / RS-422 / RS-485. See the table below and
section
3.3.6 SIO Configuration
for details.
Pin
Signal
Pin
Signal
1
DCD (422TXD-/485DATA-)
2
RXD (/)
3
TXD ()
4
DTR (422RXD-)
5
GND
6
DSR
7
RTS
8
CTS
9
RI/+12V/+5V
10
N.C.
EMB-APL1
EMB-APL1 Serial port connectors
PIN 1
COM1
DCD TXD GND RTS
RI/+12V/+5V
RXD DTR DSR CTS NC
PIN 1
COM2
DCD TXD GND RTS Ring
RXD DTR DSR CTS NC
PIN 1
COM3
DCD TXD GND RTS Ring
RXD DTR DSR CTS NC
PIN 1
COM4
DCD TXD GND RTS Ring
RXD DTR DSR CTS NC
PIN 1
COM5
DCD TXD GND RTS Ring
RXD DTR DSR CTS NC
PIN 1
COM6
DCD TXD GND RTS Ring
RXD DTR DSR CTS NC
EMB-APL1
2-18
