Com (Serial) Ports - DFI ES520-CD User Manual

Rear Panel I/O Ports
COM
Wi-Fi Module
Antenna Hole
USB 2.0
Mic-in
COM (optional)
Line-out
The rear panel I/O ports consist of the following:
• 4 DB-9 RS232 COM (3 ports are optional)
• 1 VGA port
• 2 LAN ports
• 2 USB 2.0 ports
• 1 Mic-in jack
• 1 Line-out jack
• 12V DC-in
Chapter 5 Ports and Connectors
VGA
Wi-Fi Module
Antenna Hole
LAN
DC-in
Chapter 5

COM (Serial) Ports

COM 2
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2
9
1
COM2 :
RS232/422/485
COM 1: RS232
COM 1 and COM 3 to COM 6 are fixed at RS232.
The pin function of the COM port 2 will vary according to JP3's setting. Refer to "COM 2
RS232/RS422/RS485 Select" in chapter 4 for more information.
The serial ports are asynchronous communication ports with 16C550A-compatible UARTs that
can be used with modems, serial printers, remote display terminals, and other serial devices.
Connecting External Serial Ports
Your COM port may come mounted on a card-edge bracket. Install the card-edge bracket to
an available slot at the rear of the system chassis then insert the serial port cable to the COM
connector. Make sure the colored stripe on the ribbon cable is aligned with pin 1 of the COM
connector.
• BIOS Setting
Configure the serial ports in the Advanced menu ("Super IO Configuration" submenu) of the
BIOS. Refer to chapter 7 for more information.
18
COM 3
COM 6
COM 4
COM 5
COM 1, COM 3 to
COM 6: RS232
2
1
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