Lanner LEC-7230 Instrukcja Użytkownika Strona 13

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13
Board Layout
Chapter 3
Embedded and Industrial Computing
Select COM1/COM2 Pin 9 Function (JRI1/JRI2): The
pin 9 of COM1 and COM2 can be altered by JRI1 and JRI2
respectively according to the following jumper settings.
Default
+5V
+12V
Jumper Setting
Function
SW1/SW4
RI# (default) 1-2
+5V 3-4
+12V 5-6
Jumper Settings
RS-232 Pin Headers (JCOM1/2): It is a RS-232 serial
communication interface Connector
RS-232/422/485 Serial Port (COM1 and COM2): It is
an RS-232/422/485 port with automatic hardware flow
control through a D-SUB9 connector.
Note: To switch among RS-232, 422, 485
communication protocols, use the BIOS menu.
Pin No. Signal
RS-232
1 Data Carrier Detect ( DCD # )
2 Receive Data ( RXD )
3 Transmit Data ( TXD )
4 Data Terminal Ready ( DTR # )
5 Ground ( GND )
6 Data Set Ready ( DSR # )
7 Request To Send ( RTS # )
8 Clear To Send ( CTS # )
9 Ring Indicator ( RI # )
JRI1: COM1 JRI2: COM2
6789
12345
5
3
1
6
4
2
1 3 5
2 4 6
2 4 6
5
3
1
6
4
2
5
3
1
6
4
2
2 4 6
1 3 5
Pin No. Signal
RS-232
1 Data Carrier Detect ( DCD # )
2 Receive Data ( RXD )
3 Transmit Data ( TXD )
4 Data Terminal Ready ( DTR # )
5 Ground ( GND )
6 Data Set Ready ( DSR # )
7 Request To Send ( RTS # )
8 Clear To Send ( CTS # )
9 Ring Indicator ( RI # )
Pin No. Signal
RS-422
1 TXD-
2 TXD+
3 RXD+
4 RXD-
5 GND
Pin No. Signal
RS-485
1 DATA-
2 DATA+
3
4
5
GND
9
7
5
3
1
10
8
6
4
2
2
1
10
9
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