RAK-120S - User Guide, Rev. 1.0
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Pin
Signal Name
4-pin USB Connector Type A Version 2.0
1
+USBVCC
2
USB_D-
3
USB_D+
4
GND
11.5.
VGA Connector
Table 10: VGA Connector (see Figure 2, pos. 2)
Pin
Signal Name
15-pin D-SUB Female Cpnnector
1
Red
2
Green
3
Blue
4
NC
5
GND
6
GND
7
GND
8
GND
9
VCC
10
GND
11
NC
12
DDC data
13
HSYNC
14
VSYNC
15
DDC Clock
11.6.
RS232/422/485 Serial Port
Table 11: RS232/422/485 Serial Port (see Figure 2, pos. 5)
Pin
RS232
RS422
RS485
Half
Duplex
RS485
Full
Duplex
COM1 (9-pin D-SUB Male Connector)
1
DCD
TX-
DATA-
TX-
2
RXD
TX+
DATA+
TX+
3
TXD
RX+
N/A
RX+
4
DTR
RX-
N/A
RX-
5
GND
GND
GND
GND
6
DSR
N/A
N/A
N/A
7
RTS
N/A
N/A
N/A
8
CTS
N/A
N/A
N/A
9
RI
N/A
N/A
N/A
