Lanner LEC-7106 - Manual (Page 13)

13
Board Layout
Chapter 3
Embedded and Industrial Computing
Jumper Settings
Microphone-in Audio Jack (MIC1)
Line-out Audio Port (LIN1)
RS-232 Serial Port (COM1~COM4): It is an RS-232 port
through the D-SUB9 connector.
SC1T1/SC2T1/SC3T1/SC4T1: Select COM1/COM2/
COM3/COM4 Pin 9 (ring indicator) signal
Switch Combination
Protocol
SW1/SW4
+5V 1-2
+12V 3-4
RI (default) 5-6
6 7 8 9
1 2 3 4 5
Pin No. signal Pin No. signal
1 GNd_AUd 2 MIC_OUT_L
3 GNd_AUd 4 GNd_AUd
5 MIC_OUT_R
Pin No. signal Pin No. signal
1 GNd_AUd 2 FRONT_OUT_L
3 GNd_AUd 4 GNd_AUd
5 FRONT_OUT_R
Pin No. signal
Rs-232
1 dCd
2 Rxd
3 Txd
4 dTR
5 GNd
6 dsR
7 RTs
8 CTs
9 RI (ring indicator)
The Main Board
1
3
5 2
4
6