Com1 D-Sub Connector (Cn6); Com2 D-Sub Connector (Cn27) - AXIOMTEK eBOX640-521-FL Series User Manual

eBOX640-521-FL Series User's Manual
3.3.5

COM1 D-Sub Connector (CN6)

This connector is a standard D-Sub connector for COM1 serial port interface which is
selectable for RS-232/422/485 mode by BIOS setting (see section 4.4). The pin assignments
of RS-232/422/485 are listed in table below.
Pins RS-232
1 DCD#
2 RXD
3 TXD
4 DTR#
5 GND
6 DSR#
7 RTS#
8 CTS#
9 RI#
3.3.6

COM2 D-Sub Connector (CN27)

This connector is a standard D-Sub connector for COM2 serial port interface which is
selectable for RS-232 mode by BIOS setting (see section 4.4). The pin assignments of RS-
232 are listed in table below.
Pins RS-232
1 DCD#
2 RXD
3 TXD
4 DTR#
5 GND
6 DSR#
7 RTS#
8 CTS#
9 RI#
24
RS-422 RS-485
TX- Data-
TX+ Data+
RX+ N/C
RX- N/C
GND GND
N/C N/C
N/C N/C
N/C N/C
N/C N/C
Jumper & Connector Settings