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COM1 and COM2 Port
COM2
COM1
COM1 and COM2 are fixed at RS232.
1 2 3 4 5
6 7 8 9
COM 1 and COM 2
COM1 and COM2's pin definition will vary according to JP3 and JP4's settings.
Refer to "COM1 and COM2 RS232/RS422/RS485 Select" in this chapter 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 se-
rial port cable to a 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 of the BIOS. Refer to chapter 3
for more information.
Hardware Installation
2
9
1
COM 4
2
33
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