I-Tech LPC8800, Руководство пользователя

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Chapter 3
Board Layout
Jumper Settings
LEK-IOA2 Board
Microphone-in Audio Jack (CN1 )
Pin No. Function
1
CO GND
2
MIC INL
3
CO GND
4
INSULATOR
5
MIC INR
Line-out Audio Jack (CN2)
Pin No. Function
1
CO GND
2
LINOUT-L
3
CO GND
4
INSULATOR
5
LINOUT- R
^ j ^ Note: The driver for the VGA and Audio ports
should be installed with the following order:
Chipset INF->Graphic->Audio
COM1 RS-232 Serial Port(COMI): It is a RS-232/422/485
port through the D-SUB9 connector.
1 2 3 4 5
\ o o o o o /
n \
0 0 0 0
/
6 7 8 9
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
6 DSR
7
RTS
8
CTS
9 Rl
RS-232/422/485 SerialPort(COM2):ltisaRS-232/422/485
port through the D-SUB9 connector.
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
6 DSR
7 RTS
8 CTS
9 Rl
SCT1, SCT2: Select COM1 Protocol Setting
SCT2
SCT1
9
5
12
3
5
RS-232
1 f
3
5
RS-422
ra
RS-485
3
» * «
5 . - -
^ \ . Switch
Protocol ^ \
SCT1 SCT2
RS-232 (default) 1-5,2-6,3-7,4-8 1-2
RS-422 5-9,6-10,7-11,8-12 3-4
RS-485 5-9,6-10,7-11,8-12 5-6
SCT3, SCT4: Select COM2 Protocol Setting
SCT3 SCT4
1 9
10
11
12
1
3
5
?
1
9
10
11
12
1
3
5
9
10
11
12
1
3
5
4
3
9
10
11
12
1
3
5
4
4
9
10
11
12
1
3
5
b
^ \ ^ Switch
Protocol ^ \
SCT3 SCT4
RS-232 (default) 1-5,2-6,3-7,4-8 1-2
RS-422 5-9,6-10,7-11,8-12 3-4
RS-485 5-9,6-10,7-11,8-12 5-6
15