Acrosser AR-B104B User Manual
Page 12
AR-B104B User Manual
12
2.7 COM 5~8
COM5 ~ COM8 output port
2.8 UART Controller 2
OXuPCI954 UART Controller for
COM1~COM4
2.9 JP12
PCI INT signal select
Pin
RS-232
RS-422
RS-485
1
DCD_8
N/C
N/C
2
DSR_8
Rx-_8
N/C
3
RXD_8
Rx+_8
N/C
4
RTS_8
N/C
N/C
5
TXD_8
N/C
N/C
6
CTS_8
Tx-_8
Data-_8
7
DTR_8
N/C
N/C
8
RI_8
Tx+_8
Data+_8
9
GND
GND
GND
10
+5V
+5V
+5V
11
DCD_7
N/C
N/C
12
DSR_7
Rx-_7
N/C
13
RXD_7
Rx+_7
N/C
14
RTS_7
N/C
N/C
15
TXD_7
N/C
N/C
16
CTS_7
Tx-_7
Data-_7
17
DTR_7
N/C
N/C
18
RI_7
Tx+_7
Data+_7
19
GND
GND
GND
20
+5V
+5V
+5V
21
DCD_6
N/C
N/C
22
DSR_6
Rx-_6
N/C
23
RXD_6
Rx+_6
N/C
24
RTS_6
N/C
N/C
25
TXD_6
N/C
N/C
26
CTS_6
Tx-_6
Data-_6
27
DTR_6
N/C
N/C
28
RI_6
Tx+_6
Data+_6
29
GND
GND
GND
30
+5V
+5V
+5V
31
N/C
N/C
N/C
32
N/C
N/C
N/C
33
DCD_5
N/C
N/C
34
DSR_5
Rx-_5
N/C
35
RXD_5
Rx+_5
N/C
36
RTS_5
N/C
N/C
37
TXD_5
N/C
N/C
38
CTS_5
Tx-_5
Data-_5
39
DTR_5
N/C
N/C
40
RI_5
Tx+_5
Data+_5
41
GND
GND
GND
42
+5V
+5V
+5V
43
N/C
N/C
N/C
44
N/C
N/C
N/C
PCI INT signal
select
Select
INTA
1 – 2
(default)
INTB
3 - 4
INTC
5 - 6
INTD
7 - 8