AXIOMTEK SBC86831 Series, User Manual

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SBC86831 Series All-In-One Mini ITX Board User’s Manual
Jumpers and Connectors 18
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 f5V/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 Signal
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)
CN7A
Pin
Signal
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
CN7B
1
10
11
15
5
6