Lanner LEC-7050 - Manual (Page 14)

13
Board Layout
Chapter 3
Embedded and Industrial Computing
SW1: Select COM1 Protocol Setting
SW4: Select COM2 Protocol Setting
RS-232
RS-422
RS-485
Switch Combination
Protocol
SW1/SW4
RS-232 (default) 1 On (2,3,4 Off)
RS-422 2,3 On (1,4 Off)
RS-485 2,4 On (1,3 Off)
Note: Besides jumper settings, you should also
select the communication protocol in the BIOS as
shown in the following picture, select Advanced
->F81865 SuperIO Configuration->Serial Port 0/1
Driver->RS232 or RS485
Jumper Settings
Microphone-in Audio Jack (J4)
Line-out Audio Port (J3)
RS-232/422/485 Serial Port (COM1 and COM2): It is a
RS-232/422/485 port through the D-SUB9 connector.
6 7 8 9
1 2 3 4 5
Pin No. Function
1 CO_GNd
2 MIC_INL
3 CO_GNd
4 INsULATOR
5 MIC_INR
Pin No. Function
1 CO_GNd
2 LINOUT-L
3 CO_GNd
4 INsULATOR
5 LINOUT- R
Pin No. Pin Name
Rs-232 Rs-422 Rs-485
1 dCd TXd- dATA-
2 Rxd TXd+ dATA+
3 Txd Rxd+
4 dTR Rxd-
5 GNd signal Ground
6 dsR
7 RTs
8 CTs
9 RI
SW1
1
2
3
4 ON
1
2
3
4
1
2
3
4
1
2
3
4
4 3 2 1
SW4
4 3 2 1
4 3 2 1
ON
4 3 2 1