Serial-Communication Interfaces; Connectors; Configuration - Kontron speedMOPSlcdCE User Manual

KONTRON

SERIAL-COMMUNICATION INTERFACES

9.
Two fully functional serial ports (COMA and COMB) provide asynchronous serial communications.
COMA and COMB support RS-232 operation modes. They are 16550 high-speed UART compatible and
support 16-byte FIFO buffers for transfer rates from 50baud to 115.2Kbaud.

Connectors

9.1
COMA is available through the J14 connector (10 pins) and COMB through the J13 connector (10
pins). To have the signals available on the standard serial interface connectors DSUB9 or DSUB25,
an adapter cable is required. A 9-pin DSUB cable is available from Kontron (KAB-DSUB9-2, Part
Number 96017-0000-00-0). The following table shows the pinouts for COMA and COMB, as well as
necessary connections for DSUB adapters.
Header Pin
1
2
3
4
5
6
7
8
9
10
Notes: (
*) To protect the external power lines of peripheral devices, make sure that:
-- the wires have the right diameter to withstand the maximum available current
-- the enclosure of the peripheral device fulfils the fire-protecting requirements of
-- IEC/EN 60950.
To find the location of the serial ports on the board, please see the Appendix E: Connector Layout
chapter.

Configuration

9.2
You can set the two serial input/output interfaces to a variety of I/O addresses and IRQ
configurations. Settings are changeable from the BIOS menu. Refer to the I/O Device Configuration
submenu in the Appendix B: BIOS Operation chapter for configuration information.
Note: Most operating systems detect the serial port with the I/O address 3F8h as
COM1 and 2F8h as COM2.
speedMOPSlcdCE User's Guide
Signal Name Function
/DCD Data Carrier Detect
/DSR Data Set Ready
RxD Receive Data
/RTS Request to Send
TxD Transmit Data
/CTS Clear to Send
/DTR Data Terminal Ready
/RI Ring Indicator
GND Signal Ground
VCC * +5V
25
In / Out DSUB-25 DSUB-9
In 8
In 6
In 3
Out 4
Out 2
In 5
Out 20
In 22
-- 7
-- --
Serial Communicatio Interfaces
1
6
2
7
3
8
4
9
5
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