COM1: Onboard serial port header
Connect a serial port extension bracket to this header to add a second serial port to your system.
Pin Signal Name Function
1 DCDB Data Carrier Detect
2 DSRB Data Set Ready
3 SINB Serial Input
4 RTSB RART B Request to Send
5 SOUTB UART B Serial Output
6 CTSB Clear to Send
7
DTRB UART B Data Terminal Ready
8
RI Ring Indicator
9
Key No pin
10
GND Ground
F_USB2/3: Front Panel USB Ports
The motherboard has four USB ports on front edge.
Pin Signal Name Pin Signal Name
1 VCC 2 data-
3 data+ 4 GND
5 VCC 6 data-
7 data+ 8 GND
LPT1: Onboard parallel port header
This is a header that can be used to connect to the printer, scanner or other devices.
Pin Signal Name Pin Signal Name
1 STROBE 14 ALF
2 PD0 15 ERROR
3 PD1 16 INIT
4 PD2 17 SLCTIN
5 PD3 18 Ground
6 PD4 19 Ground
7 PD5 20 Ground
8 PD6 21 Ground
9 PD7 22 Ground
10 ACK 23 Ground
11 BUSK 24 Ground
12 PE 25 Ground
13 SLCT 26 Key
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