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SBC86831 Series All-In-One Mini ITX Board User's Manual
2.4.5 VGA & Serial Port 1 Connectors: CN7A, CN7B
CN7 is double deck D-Sub connector. The upper is a standard 9-pin
pin DB9 connector for the Serial port 1(CN7A).
CN7A is RS-232/422/485, jumper selectable with auto flow control
features. All four ports feature +5V/12V power capability on DCD and
RI, depending on the jumper setting.
CN7B is a standard 15-pin pin DB15 connector commonly used for the
CRT VGA display.
Pin
1
Data Carrier Detect (DCD)
2
Receive Data (RXD)
3
Transmit Data (TXD)
4
Data Terminal Ready (DTR)
5
Ground (GND)
6
Data Set Ready (DSR)
7
Request to Send (RTS)
8
Clear to Send (CTS)
9
Ring Indicator (RI)
Pin
1
Red
2
Green
3
Blue
4
N.C
5
Ground (GND)
6
AnalogGround（AGND）
7
AnalogGround（AGND）
8
AnalogGround（AGND）
9
N.C
10
Ground (GND)
11
N.C
12
DDC DATA
13
Horizontal Sync
14
Vertical Sync
15
DDC CLK
18
Signal
Signal
CN7A
CN7B
5
1
10
6
11
15
Jumpers and Connectors
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