J1: vga crt connector, J2: com2 serial port, J4: usb connector – Intel MB875 User Manual
Page 18
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INSTALLATIONS
J1: VGA CRT Connector
Signal Name
Pin
Pin
Signal Name
R 1
2
+5V
G 3
4
GND
B 5
6 NC
NC 7
8
SPD1
GND 9
10
Hsync
GND 11
12
Vsync
GND 13
14
SPCLK
GND 15
J2: COM2 Serial Port
Pin #
Signal Name (RS-232)
1
DCD, Data carrier detect
2
RXD, Receive data
3
TXD, Transmit data
4
DTR, Data terminal ready
5 Ground
6
DSR, Data set ready
7
RTS, Request to send
8
CTS, Clear to send
9
RI, Ring indicator
10 No
Connect.
J4: USB Connector
Signal Name
Pin #
Pin #
Signal Name
Vcc 1
5
Ground
USB2- 2 6 USB3+
USB2+ 3 7 USB3-
Ground 4 8 Vcc
14
MB890 User’s Manual
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