-
9
-
4.3 Standard DB9
COM1
～
4
Pin
Definition
RS-232
RS-485
RS-422
1
DCD#
T/R+
T/R+
2
RXD
T/R-
T/R-
3
TXD
X
RXD+
4
DTR#
X
RXD-
5
GND
GND
GND
6
DSR#
VCC (+5V
spare input)
VCC (+5V spare
input)
7
RTS#
X
X
8
CTS#
X
X
9
RI#
X
X
4.4 Standard VGA
VGA Display, its interface is 15 core type D VGA display socket.
VGA
pin
definition
pin
definition
1
Red
2
Green
3
Blue
4
N.C.
5
GND
6
Detect
7
GND
8
GND
9
+5V
10
GND
11
NC
12
DDCDATA
13
HSYNC
14
VSYNC
