User`s manual

Hardware Installation

Serial Ports

The system board is equipped with an onboard serial port at

location CN1 (COM 4). It is also equipped with a 9-pin connector

at location J15 (COM 3). The serial ports are RS-232 and/or

RS-485 (COM 4 only) asynchronous communication ports with

16C550A-compatible UARTs that can be used with modems, serial

printers, remote display terminals, and other serial devices.

To connect COM 3, please refer to the following description. The

serial port may be 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 cable connector to J15. Make sure the colored stripe

on the ribbon cable is aligned with pin 1 of 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 3

COM 4

GND

RTS

DTR

DSR

CTS