17
Installing the Motherboard
COM3~6 : Onboard serial port header
Connect a serial port extension bracket to this header to add a second serial port to
your system.
LPT: 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 AUTOF
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 BUSY 24 Ground
12 PE 25 Ground
13 SLCT 26 No pin
Pin Signal Name Pin Signal Name
1 C3_DCD 21 C5_DCD
2 C3_DSR 22 C5_DSR
3 C3_RXD 23 C5_RXD
4 C3_RTS 24 C5_RTS
5 C3_TXD 25 C5_TXD
6 C3_CTS 26 C5_CTS
7 C3_DTR 27 C5_DTR
8 C3_RI 28 C5_RI
9 Ground 29 Ground
10 Ground 30 Ground
11 C4_DCD 31 C6_DCD
12 C4_DSR 32 C6_DSR
13 C4_RXD 33 C6_RXD
14 C4_RTS 34 C6_RTS
15 C4_TXD 35 C6_TXD
16 C4_CTS 36 C6_CTS
17 C4_DTR 37 C6_DTR
18 C4_RI 38 C6_RI
19 Ground 39 Ground
20 Ground 40 Ground
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