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Serial Ports
COM 2
COM 1
COM 4
1
CD
TD
GND
COM 3
RTS
RI
9
The system board is equipped with 3 onboard serial ports at
locations CN5 (COM 1 and COM 2) and CN6 (COM 4). It is also
equipped with a 9-pin connector at location J3 (COM 3). These
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, insert the connector that is attached to the
serial port cable to J3. Make sure the colored stripe on the ribbon
cable is aligned with pin 1 of J3.
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.
2
RD
DTR
DSR
CTS
Hardware Installation
2
35
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