Com (Serial) Ports - DFI EC70B-SU User Manual

COM (Serial) Ports

COM 3: RS232
COM 3
SATA 2 SATA Power
1
1
HDMI
LINE-out
Realtek ALC888
SATA 3.0
80
EIO
2 1
1
JP1
12
1
1 DDR4
JP2
12
1
Battery
JP3 1
SPI Flash
JP4 1
BIOS
1
COM 4 VGA
COM 2: RS232/RS422/RS485
COM 4 (or 8-bit DIO): RS232
COM 1 and COM 2 can be selected among RS232, RS422 and RS485 whereas COM 3 and
COM 4 are fixed at RS232. Use the BIOS configuration utility to select the communication
mode for COM 1 and COM 2.
BIOS Setting
Configure the serial ports in the "Advanced" menu (Super I/O submenu) of the BIOS. Refer to
Chapter 7 for more information.
Chapter 2 Hardware Installation
Chapter 5 Ports and Connectors
LAN 2 LAN 1
USB 2
USB 4
USB 1
USB 3 DC-in
MIC-in
USB 3.0 USB 3.0
Intel
WGI210IT
DDR4
DDR4 DDR4
Auto PWR ON (JP7)
JP7
Front
Power
Panel
(JP11) Button
6
3
COM 1
COM 2
COM 1: RS232/RS422/RS485
Chapter 5
COM 1 (RS232/422/485) / COM 2 (RS232/422/485) / COM 3 (RS232 only)
1 2 3 4 5
6 7 8 9
RS232
COM 4 (Serial) Port
This DB-9 serial port can be configured as an RS232 serial port or as an 8-bit DIO connector
via jumper settings. Refer to "COM 4/DIO Select" in Chapter 4 for its respective configuration.
8-bit Digital IO
The 8-bit Digital I/O connector provides monitoring and control functions to the connected
external devices. We have built support software called EAPI that enables the functionality of
hardware components. Please contact our tech support or sales representatives for the support
software package.
Pins
1
2
3
4
5
6
7
8
9
17
1 2 3 4 5
1 2 3 4 5
6 7 8 9 6 7 8 9
RS485
RS422
Full Duplex
COM 4 Function
RS232 DIO
DCD DIO0
RXD DIO1
TXD DIO2
DTR DIO3
GND GND
DSR
DIO4
RTS
DIO5
CTS DIO6
RI DIO7
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