Serial Port Interface; Dvi-I - Acnodes PC 8172 User Manual

2.5

Serial Port Interface

The PC 8172 has four onboard serial ports, COM1, COM2, COM3,
COM4 are RS-232 Port Connector.
The connector, COM1, COM2, COM3 are DB-9 connector, and the
following table shows the pin assignments of this connector.
Pin Signal
DCD, Data
1
Carrier Detect
RXD, Receive
2
Data
TXD, Transmit
3
Data
DTR, Data
4
Terminal Ready
5 GND, Ground
2.6

DVI-I

The PC 8172 has a DVI-I
connect to an expansion CRT monitor, and the system can display on
both the flat panel and the CRT simultaneously.
Pin Signal
1
TX2-
3
Ground
5
CRT_SPD DATA
7
DVI_SPD DATA
9
TX1-
11
Ground
13
NC
15
Ground
17
TX0-
19
Ground
Hardware Installation
PC 8172 User's Manual
Pin Signal
6 DSR, Data Set Ready
RTS, Request To
7
Send
8 CTS, Clear To Send
RI/+5V/+12V Ring
9
Indicator
interface connector. It is able to
Pin
2
TX2+
4
CRT_SPD_CLK
6
DVI_SPD_CLK
8
CRT-VSYNC
10
TX1+
12
NC
14
VGAVCC
16
FPDETECT
18
TX0+
20
NC
Signal
25