36
2
Hardware Installation
COM 1
2.5.2 Serial Ports
The system board is equipped with two onboard serial ports at
locations CN13 (COM 1) and CN14 (COM 2). It is also equipped
with two 9-pin connectors at locations J14 (COM 3) and J15
(COM 4). These ser ial por ts are RS-232 and/or RS-485
asynchronous communication por ts with 16C550A-compatible
UARTs that can be used with modems, serial printers, remote
display terminals, and other serial devices.
To connect COM 3 and/or COM 4, please refer to the following
description. The serial por ts may be mounted on a card-edge
bracket. Install the card-edge bracket to the system chassis then
insert the cable connector to J14 or J15. Make sure the colored
stripe on the ribbon cable is aligned with pin 1 of J14 or J15.
Important:
If the LCD Display Panel that is connected to the LVDS LCD
Panel connector supports touch screen, DO NOT connect a
serial device to COM 3 because the touch screen function is
internally connected to COM 3.
"
COM 2
"
COM 4
COM 3
1
9
2
CD TD
RD DTR
SG RTS
DSR CTS
RI
"
